I propose to study one problem for epistemic dependence on experts: how to locate experts on what I will call cognitive islands. Cognitive islands are those domains for knowledge in which expertise is required to evaluate other experts. They exist under two conditions: first, that there is no test for expertise available to the inexpert; and second, that the domain is not linked to another domain with such a test. Cognitive islands are the places where we have the fewest (...) resources for evaluating experts, which makes our expert dependences particularly risky. -/- Some have argued that cognitive islands lead to the complete unusability of expert testimony: that anybody who needs expert advice on a cognitive island will be entirely unable to find it. I argue against this radical form of pessimism, but propose a more moderate alternative. I demonstrate that we have some resources for finding experts on cognitive islands, but that cognitive islands leave us vulnerable to an epistemic trap which I will call runaway echo chambers. In a runaway echo chamber, our inexpertise may lead us to pick out bad experts, which will simply reinforce our mistaken beliefs and sensibilities. (shrink)

The phenomenon of expertise produces two problems for liberal democratic theory: the first is whether it creates inequalities that undermine citizen rule or make it a sham; the second is whether the state can preserve its neutrality in liberal ’government by discussion’ while subsidizing, depending on, and giving special status to, the opinions of experts and scientists. A standard Foucauldian critique suggests that neutrality is impossible, expert power and state power are inseparable, and that expert power is the (...) source of the oppressive, inegalitarian effects of present regimes. Habermas argues that expert cultures make democratic discussion impossible. Analogous problems arise with ’cognitive authority’, understood in Mertonian terms. Cognitive authority, as Merton sees it, allows us to ask about the democratic legitimacy of this authority, which appears to solve the problem (or part of the problem) because it returns ultimate ’authority’ to the people, who reject or accept the experts’ claims. And many claims to expertise in fact do fail to gain acceptance. Through an examination of the type of expert that appears to evade the demands of legitimation, it is shown that expertise and liberal democracy can in principle co-exist, contrary to the claims of the critics. (shrink)

The conventional approach to developing expert systems views the domain of application as being “formally defined”. This view often leads to practical problems when expert systems are built using this approach. This paper examines the implications and problems of the formal approach to expert system design and proposes an alternative approach based on the concept of semi-formal domains. This approach, which draws on the work of socio-technical information systems, provides guidelines which can be used for the design (...) of successful expert systems. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Advocates, Not Problem ParentsAnonymous TwoNothing could have prepared us for the shock of hearing that our son had a brain tumor.Rob* was 13½, an active, healthy eighth grader, when he developed a headache so bad he couldn’t get out of bed in the morning. We saw the pediatrician three times over the next ten days. On the third visit, after ruling out problems at home, stress at school, (...) strep throat and mono, he sent us for an MRI. When the radiology tech handed me the films and told us to drive back to the pediatrician’s office, I knew we were in trouble. Sure enough, after all the other patients had left, our long–time doctor called us into his tiny office, shut the door and fumbled with the films as he pointed to a white spot that he said was a brain tumor.So began the experience that would change the course of our lives. We remember the diagnosis in detail and relive it in slow motion. We recall packing suitcases, driving to the hospital, waiting to be seen in the emergency room, and walking through doors marked “Pediatric Hematology/Oncology” for the first time.We date everything “BC” (Before Cancer) or “AD” (After Diagnosis). We are grateful every day that [End Page 13] our son is alive, but we know he is forever changed. We are changed: Our nuclear family, our extended family, everyone who knew us and supported us at the time was affected. A pediatric cancer diagnosis is a bomb that shatters your world without warning. If you’re lucky, you can pick up a lot of the pieces, maybe even most of them, but the world you re–enter is never the one you inhabited before.Our doctor delivered the diagnosis to Rob and me at the same time. I’ve thought about this many times and perhaps one day will ask him: Why did he choose to do it that way? Was it a conscious decision or just happenstance? Was it kinder, in the long run—like pulling off a band–aid quickly—or terribly risky? What if I had collapsed at the news? I asked to step into the hall to use the phone. In a state of numbness, I called my husband. He knew we had had an MRI a few hours earlier. “Come quickly,” I said. “There’s a mass.”We chose to go to a top-ranked major medical center and were admitted that evening. A couple of days later, the discovery of tumor markers in Rob’s cerebrospinal fluid and blood confirmed a central nervous system mixed germ cell tumor. We were told he would require six cycles of chemotherapy, followed by six weeks of radiation, and possibly second–look surgery and high-dose chemo with stem cell rescue on top of that. We were given a consent form listing a catalogue of short–and long–term side effects, among them the likelihood of infertility. We were urged to start treatment as soon as possible.By sheer coincidence I had just completed a project for a small, nonprofit organization that existed to inform young adult cancer patients about their fertility rights and options. I knew that infertility concerns were usually pushed aside at diagnosis to make way for other priorities, namely the urgency of starting treatment. And that’s exactly the kind of pressure we were facing.But my husband and I were not ready to sign away our son’s fertility in what felt like a no–confidence vote, a capitulation. We needed to believe that he would survive and put this horror behind him, that he would look forward to marriage and starting a family. We were willing to cede nothing to the disease at this early stage of the game. Was this rational, naive or selfish on our part? I don’t know.The medical team seemed surprised when we asked for a delay in treatment in order to collect sperm samples. They warned that our son’s condition could decline suddenly—and that postponing treatment by even several days might be dangerous. However, at our insistence, they agreed to the delay... (shrink)

Mainstream epistemology is a highly theoretical and abstract enterprise. Traditional epistemologists rarely present their deliberations as critical to the practical problems of life, unless one supposes—as Hume, for example, did not—that skeptical worries should trouble us in our everyday affairs. But some issues in epistemology are both theoretically interesting and practically quite pressing. That holds of the problem to be discussed here: how laypersons should evaluate the testimony of experts and decide which of two or more rival experts is (...) most credible. It is of practical importance because in a complex, highly specialized world people are constantly confronted with situations in which, as comparative novices, they must turn to putative experts for intellectual guidance or assistance. It is of theoretical interest because the appropriate epistemic considerations are far from transparent; and it is not clear how far the problems lead to insurmountable skeptical quandaries. This paper does not argue for flat-out skepticism in this domain; nor, on the other hand, does it purport to resolve all pressures in the direction of skepticism. It is an exploratory paper, which tries to identify problems and examine some possible solutions, not to establish those solutions definitively. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:The Road to RedemptionAnonymous TwoI “am Dr X.* and I am a trained and board certified neonatologist with some years of experience in a high volume NICU with complex pathologies. I have been dismissed from the care of your baby by the fetal surgeon who is not trained in what he’s attempting to do,” that was how I felt when I left the operating room (OR), after performing initial (...) resuscitation on a newborn with congenital diaphragmatic hernia (CDH) with very poor prenatal prognostic indices. CDH is a diaphragm abnormality that allows abdominal organs to move into the chest and restrict lung development. The better part of me knew not to make such a statement and chose not to do so, as this was about the family and a very sick baby, not the professional wrangling of two medical teams or the expression of frustration by a neonatologist who was morally conflicted.I work in a level four Neonatal Intensive Care Unit (NICU) and a very large one by any standard. Staff turnover had been an almost nonexistent issue in previous years because of the very conducive work environment of the NICU. Every team member (physician, nurse, respiratory therapist, pharmacist, etc.) felt like a stakeholder in providing optimal outcomes for the vulnerable neonates in the NICU.As change is the only constant thing in life, the hospital management decided to explore new frontiers and open a center for fetal medicine, with the hope of being a referral center in the region. They brought in a surgeon who came highly recommended for clinical acumen, but not for interpersonal relationship skills (unbeknownst to me). This surgeon, Dr Y., was hired to oversee the fetal center and build it into a center of excellence. Since this had to be a collaborative effort, other specialties (and subspecialties) had to be involved to make this a success. A representative from each of these specialties, including bioethics, was assigned to the fetal center team.The first inkling of a major problem occurred with the very first patient. The team met for the weekly meeting, reviewed the patient’s history and made a tentative plan, which included multidisciplinary counseling. This would require either a joint meeting with the patient or individual consults with the patient at her convenience. The following week at the weekly meeting, Dr Y. informed the group that he had met with the patient and counseled her and she had agreed to an extraordinary procedure for an oral lesion. In my opinion (and that of others), this lesion was not obstructive and could be immediately dealt with at delivery by an Otolaryngologist (ENT) surgeon, without putting the mother at risk for complications arising from the procedure being offered. There was a long discussion about why this was inappropriate [End Page E1] and why further imaging, discussion between the subspecialties and counseling should have been done prior to making this delivery plan. All felt this delivery plan could be remedied prior to delivery. However the surgeon had made plans with the obstetric team (who were at his mercy for financial/ political reasons) to continue with this plan. On the day of delivery, the NICU resuscitation team was called to another operating room instead of the labor and delivery room. I was even more appalled when I realized that the oral lesion was the size of a peanut! I felt like I failed in my obligation of veracity by avoiding the mother’s questions regarding the necessity of the procedure. Every member of my team felt the same and on several occasions I had to reassure concerned nurses that this was an aberrant occurrence that would not repeat itself... so I thought.I informed my departmental chairperson, Dr Z., who had a conversation with the fetal surgeon, Dr. Y., to inform him of my concerns and the effect of Dr. Y.’s actions on my group (physician, nurse practitioner, nurses). This led to being labeled unsupportive of Dr Y.’s goals and caused a less than cordial relationship towards me and the entire NICU group. The next week a picture of Dr Y. and the parents with the baby was on the front page... (shrink)

This book is an extensive survey and critical examination of the literature on the use of expert opinion in scientific inquiry and policy making. The elicitation, representation, and use of expert opinion is increasingly important for two reasons: advancing technology leads to more and more complex decision problems, and technologists are turning in greater numbers to "expert systems" and other similar artifacts of artificial intelligence. Cooke here considers how expert opinion is being used today, how an (...) expert's uncertainty is or should be represented, how people do or should reason with uncertainty, how the quality and usefulness of expert opinion can be assessed, and how the views of several experts might be combined. He argues for the importance of developing practical models with a transparent mathematic foundation for the use of expert opinion in science, and presents three tested models, termed "classical," "Bayesian," and "psychological scaling." Detailed case studies illustrate how they can be applied to a diversity of real problems in engineering and planning. (shrink)

A perennial problem in social epistemology is the problem of expert testimony, specifically expert testimony regarding scientific issues: for example, while it is important for me to know information pertaining to anthropogenic climate change, vaccine safety, Covid-19, etc., I may lack the scientific background required to determine whether the information I come across is, in fact, true. Without being able to evaluate the science itself, then, I need to find trustworthy expert testifiers to listen to. (...) A major project in social epistemology has thus become determining what the markers of trustworthiness are that laypersons can appeal to in order to identify and acquire information from expert testifiers. At the same time, the ways in which we acquire scientific information has changed significantly, with much of it nowadays being acquired in online environments. While much has been said about the potential pitfalls of seeking information online, little has been said about how the nature of seeking information online should make us think about the problem of expert testimony. Indeed, it seems to be an underlying assumption that good markers of trustworthiness apply equally well when seeking information from expert testifiers in online and offline environments alike, and that the new challenges and opportunities presented by online environments merely affects the methods by which we can acquire evidence of said trustworthiness. Here I argue that in making this assumption one risks failing to account for how unique features of the ways in which we acquire information online affect how we evaluate the trustworthiness of experts. Specifically, I argue for two main claims: first, that the nature of information-seeking online is such that the extent to which information is susceptible to manipulation is a dominant marker of trustworthiness; second, as a result, one will be more likely to seek out a particular kind of expert testifier in online environments, what I call a cooperative as opposed to preemptive expert. The result is that criteria for expert trustworthiness may look significantly different when acquiring information online as opposed to offline. (shrink)

This paper tackles the problem of defining what a cognitive expert is. Starting from a shared intuition that the definition of an expert depends upon the conceptual function of expertise, I shed light on two main approaches to the notion of an expert: according to novice-oriented accounts of expertise, experts need to provide laypeople with information they lack in some domain; whereas, according to research-oriented accounts, experts need to contribute to the epistemic progress of their discipline. (...) In this paper, I defend the thesis that cognitive experts should be identified by their ability to perform the latter function rather than the former, as novice-oriented accounts, unlike research-oriented ones, fail to comply with the rules of a functionalist approach to expertise. (shrink)

Une des solutions au problème de surcharge d'information, consiste à organiser dynamiquement l'ensemble de résultats trouvés en thèmes . L'utilisateur peut ainsi naviguer rapidement dans le résultat de sa requête. L'objectif de cette recherche est d'examiner comment l'activité de recherche d'informations dans un domaine conceptuel précis pouvait être améliorée selon que les participants avaient à leur disposition la liste de réponses regroupées en catégories. La tâche consistait à trouver sur le Web huit définitions relevant du domaine de la psychologie expérimentale (...) cognitive. Les résultats montrent que l'expertise améliore l'activité de la recherche alors que la mise à la disposition de catégories d'informations affecte négativement la recherche. Les experts dans le domaine ont produit plus de reformulations mais l'absence de familiarité dans le Web tend à augmenter le coût de ces reformulations. Tous les participants ont passé plus de temps sur la page du moteur de recherche que sur les pages Web.The research presented here analyses the influence of two types of expertise on an information access task on the Web. Forty-six students were asked to give correct answers to 8 questions about definitions of psychological concepts, without any time constraint. Results show that both participants with good knowledge of the field of study and participants with high experience of the Web on the other had the best performances. Participants with low experience of the Web were less effective than the other participants. (shrink)

In this paper we address the question of how it can be possible for a non-expert to acquire justified true belief from expert testimony. We discuss reductionism and epistemic trust as theoretical approaches to answer this question and present a novel solution that avoids major problems of both theoretical options: Performative Expert Testimony. PET draws on a functional account of expertise insofar as it takes the expert’s visibility as a good informant capable to satisfy informational needs (...) as equally important as her specific skills and knowledge. We explain how PET generates justification for testimonial belief, which is at once assessable for non-experts and maintains the division of epistemic labor between them and the experts. Thereafter we defend PET against two objections. First, we point out that the non-expert’s interest in acquiring widely assertable true beliefs and the expert’s interest in maintaining her status as a good informant counterbalances the relativist account of justification at work in PET. Second, we show that with regard to the interests at work in testimonial exchanges between experts and non-experts, PET yields a better explanation of knowledge-acquisition from expert testimony than externalist accounts of justification such as reliabilism. As our arguments ground in a conception of knowledge, which conceives of belief-justification as a declarative speech act, throughout the rearmost sections of this paper we also indicate to how such a conception is operationalized in PET. (shrink)

In this paper we address the question of how it can be possible for a non-expert to acquire justified true belief from expert testimony. We discuss reductionism and epistemic trust as theoretical approaches to answer this question and present a novel solution that avoids major problems of both theoretical options: Performative Expert Testimony (PET). PET draws on a functional account of expertise insofar as it takes the expert’s visibility as a good informant capable to satisfy informational (...) needs as equally important as her specific skills and knowledge. We explain how PET generates justification for testimonial belief, which is at once assessable for non-experts and maintains the division of epistemic labor between them and the experts. Thereafter we defend PET against two objections. First, we point out that the non-expert’s interest in acquiring widely assertable true beliefs and the expert’s interest in maintaining her status as a good informant counterbalances the relativist account of justification at work in PET. Second, we show that with regard to the interests at work in testimonial exchanges between experts and non-experts, PET yields a better explanation of knowledge-acquisition from expert testimony than externalist accounts of justification such as reliabilism. As our arguments ground in a conception of knowledge, which conceives of belief-justification as a declarative speech act, throughout the rearmost sections of this paper we also indicate to how such a conception is operationalized in PET. (shrink)

The subject of the article encompasses the change in social communication concerning the creation of new competition between two knowledge systems: the expert system and the system of dispersed knowledge. The expert model is the one in which knowledge is created only by the sender endowed with institutional authority. In opposition to this, there exist an alternative model which is characterized by so many existing decentralized, not-institutionalized centers of information processing and dissemination. This division can be described only (...) in a strictly informative dimension. Social aspect is also important, more precisely the question of social stratification forming on the basis of access criteria to every source of knowledge defined this way.The article tries to describe the relation between the worlds of: producers and consumers of information, experts and laymen, professionals and amateurs. The analysis of the problem, in author’s mind, is the beginning of the debate over the role and forms of scientific knowledge protection functioning in the time of development of information society. (shrink)

This paper is inspired by the 1995 dispute between the philosophers Jürgen Habermas and John Rawls in the Journal of Philosophy about the role of the philosopher in the public sphere. I am criticizing Habermas in his attempt to depict Rawls as a kind of justice expert. I am grounding my defence of Rawls in an argument that parallels Quine’s indeterminacy argument.This crossover of argumentative strategies taken from analytic philosophy into moral and political theory maybe can account for the (...) relevance of this paper to post-linguistic-turn philosophy, firstly, because the syncretistic nature of such an attempt bears a certain affinity to postmodern fashions of thinking. Secondly, I believe that a thinker such as Quine who is firmly rooted in the analytic tradition nevertheless surpasses this tradition in a way that in some respects may be seen as paralleling the developments in post-structuralist and postmodern thought.In Quine and some of his contemporaries and disciples, analytic philosophy turns away from the positivist assumptions of its fathers. It no longer stipulates a single way of representing the positive world in the one and only true theory. Truth, in fact, comes to be looked at as relative to a theory of which there can be many. However, if many theories serve the same purpose equally well, then truth, as theory dependent, becomes a pluralistic concept itself.This much I think I should say to guard against the misunderstanding that all analytic philosophy is positivistic and hence that all moral and political theory that avails itself of argumentative strategies from the analytic school is infected by positivism. Analytic philosophy has of course inherited the scepticism of the positivists with respect to classical metaphysics. It refused to tackle metaphysical problems directly because it very often dismissed them as merely a confused way of speaking.In order to assess where the problem is real or where, in fact, there is no problem at all, analytic philosophy turned towards our common way of speaking about the problem in question. Instead of directly asking, for example, whether human beings have a free will, analytic philosophers would ask: how do we talk about freedom? Or: what do we mean by the word 'freedom' in our everyday conversation?Consequently, either the metaphysical problem would go away or it had to be reformulated and clarified in terms of a language that we do understand. Asking these kinds of questions is of course critical of classical metaphysics, but it is not necessarily positivistic.Thus, it seems that we have to distinguish two kinds of philosophical schools both operating under the paradigm of the linguistic turn: the early positivist and the later non-positivist schools of analytic philosophy. Both share the view that reflection upon language is the primary step in philosophical investigation. They differ in their respective monistic and pluralistic conceptions of science and truth.Now, the question arises as to where to place moral and political theory within this paradigm. Until the early seventies when Rawls's Theory of Justice appeared, it was commonly held among analytic philosophers that moral and political theory had no place at all in modern post-metaphysical philosophy. It was either not scientific enough or it would be subsumed under the social sciences.It is Rawls, precisely, who made this view obsolete demonstrating that moral and political theory can operate outside the whole paradigm of post-linguistic-turn analytic philosophy and still not fall prey to the inadequacies of the old-fashioned metaphysics that had been dismissed. I would therefore call Rawls an early post-linguistic-turn philosopher. (shrink)

This paper is inspired by the 1995 dispute between the philosophers Jürgen Habermas and John Rawls in the Journal of Philosophy about the role of the philosopher in the public sphere. I am criticizing Habermas in his attempt to depict Rawls as a kind of justice expert. I am grounding my defence of Rawls in an argument that parallels Quine’s indeterminacy argument.This crossover of argumentative strategies taken from analytic philosophy into moral and political theory maybe can account for the (...) relevance of this paper to post-linguistic-turn philosophy, firstly, because the syncretistic nature of such an attempt bears a certain affinity to postmodern fashions of thinking. Secondly, I believe that a thinker such as Quine who is firmly rooted in the analytic tradition nevertheless surpasses this tradition in a way that in some respects may be seen as paralleling the developments in post-structuralist and postmodern thought.In Quine and some of his contemporaries and disciples, analytic philosophy turns away from the positivist assumptions of its fathers. It no longer stipulates a single way of representing the positive world in the one and only true theory. Truth, in fact, comes to be looked at as relative to a theory of which there can be many. However, if many theories serve the same purpose equally well, then truth, as theory dependent, becomes a pluralistic concept itself.This much I think I should say to guard against the misunderstanding that all analytic philosophy is positivistic and hence that all moral and political theory that avails itself of argumentative strategies from the analytic school is infected by positivism. Analytic philosophy has of course inherited the scepticism of the positivists with respect to classical metaphysics. It refused to tackle metaphysical problems directly because it very often dismissed them as merely a confused way of speaking.In order to assess where the problem is real or where, in fact, there is no problem at all, analytic philosophy turned towards our common way of speaking about the problem in question. Instead of directly asking, for example, whether human beings have a free will, analytic philosophers would ask: how do we talk about freedom? Or: what do we mean by the word 'freedom' in our everyday conversation?Consequently, either the metaphysical problem would go away or it had to be reformulated and clarified in terms of a language that we do understand. Asking these kinds of questions is of course critical of classical metaphysics, but it is not necessarily positivistic.Thus, it seems that we have to distinguish two kinds of philosophical schools both operating under the paradigm of the linguistic turn: the early positivist and the later non-positivist schools of analytic philosophy. Both share the view that reflection upon language is the primary step in philosophical investigation. They differ in their respective monistic and pluralistic conceptions of science and truth.Now, the question arises as to where to place moral and political theory within this paradigm. Until the early seventies when Rawls's Theory of Justice appeared, it was commonly held among analytic philosophers that moral and political theory had no place at all in modern post-metaphysical philosophy. It was either not scientific enough or it would be subsumed under the social sciences.It is Rawls, precisely, who made this view obsolete demonstrating that moral and political theory can operate outside the whole paradigm of post-linguistic-turn analytic philosophy and still not fall prey to the inadequacies of the old-fashioned metaphysics that had been dismissed. I would therefore call Rawls an early post-linguistic-turn philosopher. (shrink)

Sixty-five computer science and computer information systems students were surveyed to ascertain their ethical beliefs on seven scenarios and nineteen ethical problems. All seven scenarios incorporated computer-related problems facing programmers and managers in the high tech world. Hypotheses were tested for significant differences between the students'' beliefs and the beliefs of experts in the field who responded to the same scenarios. The first two hypothesis tested whether female and male high tech students have the same ethical beliefs as the experts (...) who first examined these scenarios. The female students did not agree with the experts in seven of the nineteen problems while the male students did not agree with the experts in eight of the nineteen problems. Both computer information systems and computer science majors disagreed with the experts in ten cases. The last three hypotheses tested whether students from different income levels agreed with the experts. All three groups disagreed significantly with the experts on eight problems. (shrink)

The ArgumentThis paper provides a historical perspective to one of the liveliest debates in common law courts today — the one over scientific expert testimony. Arguing against the current tendency to present the problem of expert testimony as a late twentieth-century predicament which threatens to spin out of control, the paper shows that the phenomena of conflicting scientific testimonies have been perennial for at least two centuries, and intensely debated in both the legal and the scientific communities (...) for at least 150 years. (shrink)

According to popular belief, big data and machine learning provide a wholly novel approach to science that has the potential to revolutionise scientific progress and will ultimately lead to the ‘end of theory’. Proponents of this view argue that advanced algorithms are able to mine vast amounts of data relating to a given problem without any prior knowledge and that we do not need to concern ourselves with causality, as correlation is sufficient for handling complex issues. Consequently, the human (...) contribution to scientific progress is deemed to be non-essential and replaceable. We, however, following the position most commonly represented in the philosophy of science, argue that the need for human expertise remains. Based on an analysis of big data and machine learning methods in two case studies—skin cancer detection and protein folding—we show that expert knowledge is essential and inherent in the application of these methods. Drawing on this analysis, we establish a classification of the different kinds of expert knowledge that are involved in the application of big data and machine learning in scientific contexts. We address the ramifications of a human-driven expert knowledge approach to big data and machine learning for scientific practice and the discussion about the role of theory. Finally, we show that the ways in which big data and machine learning both influence and are influenced by scientific methodology involve continuous conceptual shifts rather than a rigid paradigm change. (shrink)

To understand the role of expert systems as a medium for transferring knowledge and skills within organisations requires an understanding of the nature of expertise within working life contexts. Central to this issue of transfer is the debate on the nature of tacit/implicit knowledge and the problem of formalising it in explicit form. This paper considers the British approach to the development of knowledge-based systems, which is regarded as being predominantly rationalistic, and compares it with the Scandinavian approach, (...) which is regarded as being predominantly humanistic. The paper proposes that crucial to the debate on the transfer of knowledge and skills is the development of expert systems as communications media which aims at enhancing and sharing the knowledge and skills of users. A human-centred approach for the future is proposed which brings the above two traditions together thereby providing a developmental framework for knowledge based systems. (shrink)

Maintenance decision errors can result in very costly problems. The 4th industrial revolution has given new opportunities for the development of and use of intelligent decision support systems. With these technological advancements, key concerns focus on gaining a better understanding of the linkage between the technicians’ knowledge and the intelligent decision support systems. The research reported in this study has two primary objectives. To propose a theoretical model that links technicians’ knowledge and intelligent decision support systems, and to present a (...) use case how to apply the theoretical model. The foundation of the new model builds upon two main streams of study in the decision support literature: “distribution” of knowledge among different agents, and “collaboration” of knowledge for reaching a shared goal. This study resulted in the identification of two main gaps: firstly, there must be a greater focus upon the technicians’ knowledge; secondly, technicians need assistance to maintain their focus on the big picture. We used the cognitive fit theory, and the theory of distributed situation awareness to propose the new theoretical model called “distributed collaborative awareness model.” The model considers both explicit and implicit knowledge and accommodates the dynamic challenges involved in operational level maintenance. As an application of this model, we identify and recommend some technological developments required in augmented reality based maintenance decision support. (shrink)

Through the analysis of the discourse of an interpreter-mediated expert witness examination in a Korean criminal courtroom, this paper examines challenges in obtaining evidence from an expert witness through unskilled interpreters and the related complexity of participation status during the multiparty interactions, namely the courtroom examination. This paper, drawing on the participation framework theories, demonstrates how all participants are engaged in negotiation and interpretation of the meaning of the expert testimony. The two unskilled interpreters, who are primarily (...) responsible for interpreting, collaborate with each other in order to achieve communication when they face problems or difficulties in the other’s interpreted rendition. However, despite the collective efforts to accurately obtain and understand the expert evidence accurately, such efforts are not always successful in the absence of skilled interpreters. Based on these findings, this paper argues that a team of unskilled interpreters is not sufficient to accomplish the demanding task of interpreting expert evidence, and further, the court needs to be meticulous about the quality of courtroom interpreting which have potential implications for achieving just legal outcomes. (shrink)

Despite its enormous practical success, many physicists and philosophers alike agree that the quantum theory is full of contradictions and paradoxes which are difficult to solve consistently. Even after 90 years, the experts themselves still do not all agree what to make of it. The area of disagreement centers primarily around the problem of describing observations. Formally, the so-called quantum measurement problem can be defined as follows: the result of a measurement is a superposition of vectors, each representing (...) the quantity being observed as having one of its possible values. The question that has to be answered is: how this superposition can be reconciled with the fact that in practice we only observe one value. How is the measuring instrument prodded into making up its mind which value it has observed? Among some alternatives to resolve the above QM measurement problem, a very counterintuitive one was suggested by Hugh Everett in his 1955 Princeton dissertation, which was subsequently called the Many-Worlds Interpretation of QM (MWI). In this paper we will not discuss all possible scenarios to solve the measurement problem, but we will only shortly discuss Everett’s MWI, because it has led to heated debates on possibility of multiverses, beyond the Universe we live in. We also discuss two alternatives against MWI proposal: (a) the so-called scale symmetry theory, (b) the Maxwell-Dirac isomorphism. In last section, we also discuss shortly MWI hypothesis from philosophical perspective. (shrink)

Reasoners compare problems to prior cases to draw conclusions about a problem and guide decision making. All Case-Based Reasoning (CBR) employs some methods for generalizing from cases to support indexing and relevance assessment and evidences two basic inference methods: constraining search by tracing a solution from a past case or evaluating a case by comparing it to past cases. Across domains and tasks, however, humans reason with cases in subtly different ways evidencing different mixes of and mechanisms for these (...) components.In recent CBR research in Artificial Intelligence (AI), five paradigmatic approaches have emerged: statistically-oriented, model-based, planning/design-oriented, exemplar-based, and adversarial or precedent-based. The paradigms differ in the assumptions they make about domain models, the extent to which they support symbolic case comparison, and the kinds of inferences for which they employ cases. (shrink)

This article has a dual purpose: on the one hand, it aims to add to the study of text production from a formulation-centered perspective ; on the other, since the analysis and discussion of linguistic problems presented here focus on a specific discourse type within scientific communication, this article is intended as a contribution to scientific communication studies. As I am particularly interested in text production as a process, the corpus I examine consists of oral interviews. In particular, I explore (...) the oral interaction between scientists and specialized journalists that precedes the writing of science popularization texts targeted for the lay reader. I analyze and assess, from a structural and functional point of view, two types of recurrent formulation procedures usually deployed by experts: `illustration' and `reformulation', and claim they constitute resources for the construction of the interlocutors' discursive identities. (shrink)

Four arguments are examined in order to assess the state of the Intelligent Design debate. First, critics continually cite the fact that ID proponents have religious motivations. When used as criticism of ID arguments, this is an obvious ad hominem. Nonetheless, philosophers and scientists alike continue to wield such arguments for their rhetorical value. Second, in his expert testimony in the Dover trial, philosopher Robert Pennock used repudiated claims in order to brand ID as a kind of pseudoscience. His (...) arguments hinge on the nature of methodological naturalism as a metatheoretic shaping principle. We examine the use of such principles in science and the history of science. Special attention is given to the demarcation problem. Third, the scientific merits of ID are examined. Critics rightly demand more than promissory notes for ID to move beyond the fringe. Fourth, although methodological naturalism gets a lot of attention, there is another shaping principle to contend with, namely, conservatism. Science, like most disciplines, tends to change in an incremental rather than revolutionary manner. When ID is compared to other non- or quasi-Darwinian proposals, it appears to be a more radical solution than is needed in the face of the anomalies. (shrink)

The problem of value disagreement and contextualist, relativist and metalinguistic attempts of solving it are laid out. Although the metalinguistic account seems to be on the right track, it is argued that it does not sufficiently explain why and how disagreements about the meaning of evaluative terms are based on and can be decided by appeal to existing social practices. As a remedy, it is argued that original suggestions from Putnam's 'The Meaning of "Meaning"' ought to be taken seriously. (...) The resulting dual aspect theory of meaning can explain value disagreement in much the same way as it deals with disagreement about general terms. However, the account goes beyond Putnam's by not just defending a version of social externalism, but also defending the thesis that the truth conditional meaning of many evaluative terms is not fixed by experts either and instead constantly contested as part of a normal function of language. (shrink)

Considerable evidence indicates that domain specific knowledge in the form of schemas is the primary factor distinguishing experts from novices in problem‐solving skill. Evidence that conventional problem‐solving activity is not effective in schema acquisition is also accumulating. It is suggested that a major reason for the ineffectiveness of problem solving as a learning device, is that the cognitive processes required by the two activities overlap insufficiently, and that conventional problem solving in the form of means‐ends analysis (...) requires a relatively large amount of cognitive processing capacity which is consequently unavailable for schema acquisition. A computational model and experimental evidence provide support for this contention. Theoretical and practical implications are discussed. (shrink)

The process of agricultural unification will dominate the German scene for the next few years. At this stage, however, analysis and forecasts are hampered by the considerable problem concerning the viability of East German agriculture in a market economy and by the absence of reliable data in the German Democratic Republic (GDR). This can only be understood in terms of the agricultural situation in the GDR before unification, which is discussed in the first section. The political and economic incentives (...) for German unification are described in the next section of this paper, focusing especially on the integration of the GDR into CAP. The third section considers some critical structural, legal, social, and economic constraints in the process of integrating the two agricultural systems. Finally, the implications for German agriculture as well as the challenges for the CAP will be addressed. Data were collected from interviews with key agricultural policy makers, farm organizations, commodity groups, consumer groups, and agricultural experts, as well as interviewing East German farmers. Additional data were compiled from government statistics, EC publications, and press reports. The conclusions reached in this research show the urgent need for the German government to reconsider the objectives and rationale for structural policies in agriculture, and point out that the new Germany, itself full of paradoxes and uncertainty, stands at the center of European agricultural disorder. (shrink)

Testimony about the future dangerousness of a person has become a central staple of many judicial processes. In settings such as bail, sentencing, and parole decisions, in rulings about the civil confinement of the mentally ill, and in custody decisions in a context of domestic violence, the assessment of a person’s propensity towards physical or sexual violence is regarded as a deciding factor. These assessments can be based on two forms of expert testimony: actuarial or clinical. The purpose of (...) this paper is to examine the scientific and epistemological basis of both methods of prediction or risk assessment. My analysis will reveal that this kind of expert testimony is scientifically baseless. The problems I will discuss will generate a dilemma for factfinders: on the one hand, given the weak predictive abilities of the branches of science involved, they should not admit expert clinical or actuarial testimony as evidence; on the other hand, there is a very strong tradition and a vast jurisprudence that supports the continued use of this kind of expert testimony. It is a clear case of the not so uncommon conflict between science and legal tradition. (shrink)

Considerable evidence indicates that domain specific knowledge in the form of schemas is the primary factor distinguishing experts from novices in problem‐solving skill. Evidence that conventional problem‐solving activity is not effective in schema acquisition is also accumulating. It is suggested that a major reason for the ineffectiveness of problem solving as a learning device, is that the cognitive processes required by the two activities overlap insufficiently, and that conventional problem solving in the form of means‐ends analysis (...) requires a relatively large amount of cognitive processing capacity which is consequently unavailable for schema acquisition. A computational model and experimental evidence provide support for this contention. Theoretical and practical implications are discussed. (shrink)

The increasing integration of Machine Learning (ML) techniques into clinical care, driven in particular by Deep Learning (DL) using Artificial Neural Nets (ANNs), promises to reshape medical practice on various levels and across multiple medical fields. Much recent literature examines the ethical consequences of employing ML within medical and psychiatric practice but the potential impact on psychiatric diagnostic systems has so far not been well-developed. In this article, we aim to explore the challenges that arise from the recent use of (...) ANNs for the old problems of psychiatric nosology. To enable an empirically supported critical reflection on the topic, we conducted semi-structured qualitative interviews with Swiss and German experts in computational psychiatry. Here, we report our findings structured around two themes, namely (1) the possibility of using ML for defining or refining of psychiatric classification, and (2) the desirability of employing ML for psychiatric nosology. We discuss these themes by relating them to recent debates about network theory for psychiatric nosology and show why empirical research in the field should critically reflect on its contribution to psychopathology research. In sum, we argue that beyond technical, regulatory, and ethical challenges, philosophical reflection is crucial to harness the potential of ML in psychiatry. (shrink)

_GPs serve in a double role of treatment provider and expert in certain social insurance systems, such as the Norwegian one. Some physicians assert that the ethical obligations of the two roles conflict with each other. The objective of this article is to show that social insurance medical ethics, which are based on recognised principles of medical ethics, unite the physicians’ obligations associated with these roles. The method applied is a medical ethics conceptual analysis. The material consists of literature (...) on normative SIME. The study shows that SIME expands the role of the treatment provider to a wider societal context. Here, physicians should attempt to balance the perspectives of sympathy with empathy, as treatment providers, with the impartiality in their role as experts. Five principles of medical ethics are fundamental. Respect for human dignity is the overarching principle of medical ethics. The four others are nonmaleficence, beneficence, autonomy, and social justice. The article discusses two areas where it is asserted that the roles of treatment provider and expert conflict with each other: the application of beneficence and justice, and the duty of confidentiality versus the duty to provide information to the National Insurance service. The study concludes that there are no basic ethical conflicts between the two roles. The ethical problems that may arise when exercising this duality should be viewed in the same way as other ethical problems in medicine. Actual application and balancing of the principles may necessitate negotiations between patients and physicians. _ _Keywords_: dual roles, professionalism, deliberation, impartiality, medical principle ethics, values of welfare state. (shrink)

Endeavors have been made to found and incorporate ethical values in most aspects of healthcare, including health technology assessment. Health technologies and their assessment are value-laden and could trigger problems with dissemination if they contradict societal norms. Per WHO definition, preconception expanded carrier screening is a new health technology that warrants assessment. It is a genetic test offered to couples who have no known risk of recessive genetic diseases and are interested pregnancy. A test may screen for carrier status of (...) several autosomal recessive diseases and X-linked at one go. The technique has been piloted in the Netherlands and is discussed in other countries. The aim of the study was to examine values and value conflicts that healthcare experts recounted in relation to the discussion of implementation and use of preconception ECS in Sweden. We interviewed ten experts, who were associated with influencing health policymaking in Sweden. We employed systematizing expert interviews, which endeavor to access experts’ specialist knowledge. There were four female and six male informants, of which four were physicians, three bioethicists, one a legal expert, one a theologian and one a political party representative in the parliament. The participants functioned as members of two non-governmental bodies and three governmental organizations. We employed thematic analysis to identify themes, categories and subcategories. Two main themes surfaced: values and value conflicts. The main categories of Respect for persons, Solidarity, Human dignity, Do no harm, Health and Love formed the first theme, while values conflicting with autonomy and integrity respectively, constituted the second theme. Concepts relating to respect for persons were the most commonly mentioned among the participants, followed by notions alluding to solidarity. Furthermore, respondents discussed values conflicting with Swedish healthcare ones such as equality and solidarity. The experts highlighted values and concepts that are distinctive of welfare states such as Sweden and delineated how preconception ECS could challenge such values. Moreover, the analysis revealed that certain values were deemed more substantive than others, judging by the extent and detail of inference; for example, respect for persons and solidarity were on top of the list. (shrink)

Decision makers often rely on expert opinion when making forecasts under uncertainty. In doing so, they confront two methodological challenges: the elicitation problem, which requires them to extract meaningful information from experts; and the aggregation problem, which requires them to combine expert opinion by resolving disagreements. Linear averaging is a justifiably popular method for addressing aggregation, but its robust simplicity makes two requirements on elicitation. First, each expert must offer probabilistically coherent forecasts; second, each (...) class='Hi'>expert must respond to all our queries. In practice, human judges (even experts) may be incoherent, and may prefer to assess only the subset of events about which they are comfortable offering an opinion. In this paper, a new methodology is developed for combining expert assessment of chance. The method retains the conceptual and computational simplicity of linear averaging, but generalizes the standard approach by relaxing the requirements on expert elicitation. The method also enjoys provable performance guarantees, and in experiments with real-world forecasting data is shown to offer both computational efficiency and competitive forecasting gains as compared to rival aggregation methods. This paper is relevant to the practice of decision analysis, for it enables an elicitation methodology in which judges have freedom to choose the events they assess. (shrink)

Laboratory-based studies of problem solving suggest that transfer of solution principles from an analogue to a target arises only minimally without the presence of directive hints. Recently, however, real-world studies indicate that experts frequently and spontaneously use analogies in domain-based problem solving. There is also some evidence that in certain circumstances domain novices can draw analogies designed to illustrate arguments. It is less clear, however, whether domain novices can invoke analogies in the sophisticated manner of experts to enable (...) them to progress problem solving. In the current study groups of novices and experts tackled large-scale management problems. Spontaneous analogising was observed in both conditions, with no marked differences between expertise levels in the frequency, structure, or function of analogising. On average four analogies were generated by groups per hour, with significantly more relational mappings between analogue and target being produced than superficial object-and-attribute mappings. Analogising served two different purposes: problem solving (dominated by relational mappings), and illustration (which for novices was dominated by object-and-attribute mappings). Overall, our novices showed a sophistication in domain-based analogical reasoning that is usually only observed with experts, in addition to a sensitivity to the pragmatics of analogy use. (shrink)

The purpose of the work reported here was to investigate the role of problem comparison and, specifically, analogical comparison in the induction of problem categories. This work was motivated by two factors. First, it is well-documented that experts and novices represent problems in very different ways and that solution success often depends on producing expert-like problem representations (DeGroot, 1965; Duncker, 1945; Chi, Feltovich, & Glaser, 1981; Hardiman, Dufresne, & Mestre, 1989; Novick, 1988; Schoenfeld & Herrmann, 1982; (...) Silver, 1979, 1981). Second, the problem representations produced by experts and novices appear to reflect differences in the way the two groups organize their knowledge bases. Although both groups appear to represent their problem-solving knowledge in terms of problem classes, or categories, expert categories tend to be defined in terms of deep structural features, whereas novice categories tend to be defined in terms of surface features (Adelson, 1981; Chase & Simon, 1973; Chi et al., 1981; Schoenfeld &. Herrmann, 1982; Silver, 1979, 1981). Because of this differential organization, experts are more likely than novices to retrieve solution-relevant information from their categories when constructing problem representations. (shrink)

As we can see, the side effects caused by the continuous development of science and economy have gradually brought human society into a risk society. While currently, the power of globalization is unceasingly forming a world risk society. German renowned philosopher and sociologist Ulrich Beck has opened a unique and novel researching angle to review science difficulty and abuse of modern world risk society, and has made comprehensive and profound analysis. World risk society has three main characters: First, the emergence (...) of the world risk society is linked to the two fundamental changes still influencing our lives, which is the so-called “end of nature” and “end of tradition”. Second, in world risk society, mankind lose their dependence on “expert system”. The religion is replaced by the concept uncertainty and uncontrollable. In addition, there are other series of problems and abuses between world risk society and traditional society. The prime mover of social changes in world risk society exists in the side effects instead of the instrumental ration in traditional times, etc. The problem in world risk society’s science ethics are as follows: First, expansion of ration. It is mankind’s extreme confidence in ration that causing unlimited development of technology and exploitation of resources. Thus almost everywhere in nature becomes man‐made nature. Second, rupture of knowledge. From “knowledge is virtue and virtue isknowledge” (Socrates) to “knowledge is power” (Bacon), now “knowledge is money” (Bacon). Third, displacement of science value. In traditional society, science research is scientists’ personal interests. Now science research turns its target to meeting social needs, and scientists gain more profits from the technologicalproducts directly. Beck has raised the theory of risk society, and attempted to use “reflexive modernity” as the strategic plan to respond the global consequence of modern science crisis, and expressed revelatory viewpoint on diagnosis of the essential of “reflexive modernity”. Similarly, Lash emphasizes risk culture toremind human to pay attention to the ecological threat and risk. In addition, Bauman and Habermas also have some statements, etc. So my conclusion is, we should consider the autonomy of science development and its inherent relationship with economic interests. In addition, what we concern is the science dual identity of both defendant and expert. Also, the public’s understanding of the uncertainty provides a space for democratization. (shrink)

Sociologists often ask why particular groups of people have the moral views that they do. I argue that sociology’s empirical research on morality relies, implicitly or explicitly, on unsophisticated and even obsolete ethical theories, and thus is based on inadequate conceptions of the ontology, epistemology, and semantics of morality. In this article I address the two main problems in the sociology of morality: (1) the problem of moral truth, and (2) the problem of value freedom. I identify two (...) ideal–typical approaches. While the Weberian paradigm rejects the concept of moral truth, the Durkheimian paradigm accepts it. By contrast, I argue that sociology should be metaphysically agnostic, yet in practice it should proceed as though there were no moral truths. The Weberians claim that the sociology of morality can and should be value free; the Durkheimians claim that it cannot and it should not. My argument is that, while it is true that factual statements presuppose value judgments, it does not follow that sociologists are moral philosophers in disguise. Finally, I contend that in order for sociology to improve its understanding of morality, better conceptual, epistemological, and methodological foundations are needed. (shrink)

Experts in the field of organ transplantation had to rank order a set of 32 patients according to their priority in receiving a donated kidney. The patients were described by the five characteristics that are incorporated in the kidney allocation algorithm applied by Eurotransplant. The priority rankings as defined by the experts were analyzed and patterns of dedsion making identified in the rankings investigated in this study. All patterns could be explained by some type of lexicographical ranking. The larger group (...) of experts preordered tissue compatibility or, more technically speaking, the criterion of HLA match, while the complementary group applied the criterion of the length of waiting time first. Analyzing the finer decision structures of expert rankings and com paring the method of pattern exploration with a conjoint measurement analysis led to two follow-up questions: First, how can the value judgments of the experts be described adequately? Second, which type of aggregated ordering derived from the individual rankings represents them ‘best’? (shrink)

How do laypeople sitting on a jury make determinations of expertise? How, if at all, can laypersons epistemically assess the expertise of an expert or rival experts? Given that the domains of expertise are quite technical, if laypersons are to adjudicate the various proposed and often conflicting claims of experts, they must be able to determine the reliability of the experts as well as the truth of their claims. One way to address these concems is to say that the (...) layperson needs to be in a position to make the determination herself. This view I will call individualism. Individualism maintains the burden of epistemic assessment is on the layperson, not on the expert. One such version of individualism is Jason Borenstein’s proposal as to what is needed for laypersons to make such an assessment. Borenstein’s proposal turns on the laypersons’ ability to understand the domain of expertise as well as the putative expert’s ability to satisfy a proficiency test. What I hope to show is that this proposal fails for two reasons. I argue that the nlove to proficiency tests does not warrant any layperson’s determination of truth or reliability and that given the limited epistemic abilities of laypersons they are not able to satisfy Borenstein’s proposed conditions for determination. (shrink)

How do laypeople sitting on a jury make determinations of expertise? How, if at all, can laypersons epistemically assess the expertise of an expert or rival experts? Given that the domains of expertise are quite technical, if laypersons are to adjudicate the various proposed and often conflicting claims of experts, they must be able to determine the reliability of the experts as well as the truth of their claims. One way to address these concems is to say that the (...) layperson needs to be in a position to make the determination herself. This view I will call individualism. Individualism maintains the burden of epistemic assessment is on the layperson, not on the expert. One such version of individualism is Jason Borenstein’s proposal as to what is needed for laypersons to make such an assessment. Borenstein’s proposal turns on the laypersons’ ability to understand the domain of expertise as well as the putative expert’s ability to satisfy a proficiency test. What I hope to show is that this proposal fails for two reasons. I argue that the nlove to proficiency tests does not warrant any layperson’s determination of truth or reliability and that given the limited epistemic abilities of laypersons they are not able to satisfy Borenstein’s proposed conditions for determination. (shrink)

This paper uses Perrow’s sociological framework as a basis for a comparative organisation analysis of the impact of expert systems on organisational issues. The study analyses the relative impact of expert systems on two different types of accounting work: auditing and tax. The results indicate an impact on factors that ultimately improve productivity. The aggregate results indicate that expert systems are found to allow the user substantial control of search for solutions and discretion on whether to follow (...) system recommendations, increased access to top management, and a decrease in the need for supervision. The systems allow the user the ability to solve a broader range of problems, while allowing the user the ability to perform more work. The comparison of auditing and tax expert systems indicates that audit systems seem to allow for greater control over search. Tax systems seem to allow more work to be done without supervision, make more decisions immediately, and allow the user to make a wider range of decisions. (shrink)

There is a large gap between the specialized knowledge of scientists and laypeople’s understanding of the sciences. The novice-expert problem arises when non-experts are confronted with (real or apparent) scientific disagreement, and when they don’t know whom to trust. Because they are not able to gauge the content of expert testimony, they rely on imperfect heuristics to evaluate the trustworthiness of scientists. This paper investigates why some bodies of scientific knowledge become polarized along political fault lines. Laypeople (...) navigate conflicting epistemic and social demands in their acceptance of scientific testimony; this might explain their deference to scientific fringe theories, which often goes together with denying established scientific theories. I evaluate three approaches to mitigate denialism: improving the message, improving the messenger, and improving the environment in which the message is conveyed. (shrink)

Technocracy is a contested concept, but it is typically associated with the exercise of political power justified by claims to expertise, and is often contrasted with populist forms of politics. In Power Without Knowledge, Jeffrey Friedman reframes the concept of technocracy as a form of politics oriented to solving social and economic problems, and thereby extends it to cover not only epistemic elites but ordinary people. This move usefully challenges the simplistic framing of populism and technocracy as opposites, but at (...) the expense of effacing other dimensions of democratic politics. Friedman also suggests that maximizing individuals’ exit opportunities will allow them to take advantage of their relatively reliable personal knowledge. The architecture of “exitocracy” would itself, however, be designed by experts who, as such, might be tempted to insulate the institutional architecture they design against democratic interference. (shrink)

Of the many proposals for inferring genetic regulatory structure from microarray measurements of mRNA transcript hybridization, several aim to estimate regulatory structure from the associations of gene expression levels measured in repeated samples. The repeated samples may be from a single experimental condition, or from several distinct experimental conditions; they may be “equilibrium” measurements or time series; the associations may be estimated by correlation coefficients or by conditional frequencies (for discretized measurements) or by some other statistic. This paper describes two (...) elementary statistical difficulties for all such procedures, no matter whether based on Bayesian updating, conditional independence testing, or other machine learning procedures such as simulated annealing or neural net pruning. One difficulty obtains if large numbers of cells are aggregated in a measurement of expression levels from a common population of cells; the other obtains if small numbers of cells are aggregated or if samples are separately aggregated over different populations of cells. (shrink)

Contact Logics provide a natural framework for representing and reasoning about regions in several areas of computer science. In this paper, we focus our attention on reasoning methods for Contact Logics and address the satisfiability problem and the unifiability problem. Firstly, we give sound and complete tableaux-based decision procedures in Contact Logics and we obtain new results about the decidability/complexity of the satisfiability problem in these logics. Secondly, we address the computability of the unifiability problem in (...) Contact Logics and we obtain new results about the unification type of the unifiability problem in these logics. (shrink)

Schopenhauer argues, in uniquely powerful prose, that self-consciousness gives the illusion of freedom and that human actions are determined, but that we rightly feel guilt because our actions issue from our essential individual character. He locates moral value in the virtues of loving kindness and voluntary justice that spring from the fundamental incentive of compassion. Morality's basis is ultimately metaphysical, resting on an intuitive identification of the self with all other striving and suffering beings. The Introduction by leading Schopenhauer scholar (...) Christopher Janaway gives a clear summary of the argument of the essays in the context of Schopenhauer's life and works and the history of ethics in the modern period. --from publisher description. (shrink)

Governments, producers, and international free tradeorganizations like the World Trade Organization (WTO) areincreasingly confronted with consumers who not only buy (or don'tbuy) goods, but also demand that those goods are producedconforming to certain ethical (often diverse) standards. Not onlysafety and health belong to these ethical ideals, but animalwelfare, environmental concerns, labor circumstances, and fairtrade. However, this phantom haunts the dusty world of social andpolitical philosophy as well. The new concept ``consumersovereignty'' bypasses the conceptual dichotomy of consumer andcitizen.According to the narrow (...) liberal response to this newconstellation, with respect to food one should conceptualizeconsumer sovereignty as the right of the individual consumer toget information on food products and to make his or her ownchoice on the market of food products. In this conception, thereis a very strong emphasis on rules and principles with respect tothe autonomy of individuals.I argue that these narrow liberal concepts are not sufficient forappropriate public policy-making in democratic societies, andthat they only enable us to identify problems; they do not helpnon-experts (and experts, if it comes to that, as well) inweighing the different ethical claims. Besides, not onlyprinciples play a role in the outcome, but all kinds of ideals aswell, like roles, values, and norms. My principal argument isthat analysis or justification of norms or principles is notsufficient to get a synthesis or construction of ethicalsolutions: we need some value orientation to guide us inbalancing the different ethical claims by solving an ethicalproblem. Moreover, this balancing is something that requiressocial space and social time, i.e., public debates. With theconcept of public debates a whole new dimension enters ethicalanalysis, because the attention of ethicists shifts toformulating criteria of successful and rational public debates.However, in the broad liberal view these concepts aresupplemented with values, preferences, practices of care, andinvolvement. I argue firstly for a broadened perspective on foodas an integral part of life styles and not only as something thatpresents risks. That is the reason that food gets such intensiveattention from the public, which is summarized in the concept ofconsumer concerns. Secondly, I defend the argument that not only(rational) public debates, but intensive commitments of bothproducers and consumers in every link of the chain in so calledcare practices or consumer councils can enhance confidence in thefood production system and the way we extract our daily intakefrom nature. (shrink)

A concert pianist the second author videotaped herself learning J.S. Bach's Italian Concerto Presto , and commented on the problems she encountered as she practised. Approximately two years later the pianist wrote out the first page of the score from memory. The pianist's verbal reports indicated that in the early sessions she identified and memorised the formal structure of the piece, and in the later sessions she practised using this organisation to retrieve the memory cues that controlled her playing. The (...) practice and recall data supported this account. Both were organised by the formal structure of the music. Practice segments were more likely to start and stop at boundaries of the formal structure than at other locations, and recall was higher for the beginnings of sections than for later portions. Like other forms of expert memory, pianistic memory appears to be based on use of a highly practised retrieval scheme which permits rapid retrieval of information from long-term memory. (shrink)

The answer given to 'the problem of evil' in the Bible that apologists, theologians, and philosophers have not recognized or understood, having sought for answers to the problem outside the sacred texts wherein alone the unequivoval answer can be found, if only one puts together the relevant texts, as for instance, the book of Job, the book of Isaiah concerning prophecies related to the return of Christ, the book of Ezekiel, the 24th chapter of Matthew, certain passages from (...) the letters of Paul, and the book of Reveation. The central theme in this work is that evil exists now not by reason of God's presence, but by reason of God's absence. We have been left to our own devices. The reason for this is very clear in these texts, and the work spells this out in no uncertain terms, and once this reason is made fully apparent, and undeniable, it will leave no viable excuse for anyone to reject the return of the King of kings, and His eternal rule over all as the Prince of peace. (shrink)