Human experts are the source of knowledge required to develop computer systems that perform at an expert level. Human beings are not, however, able to reliably express what they know. As a result, experts often develop non-authentic accounts of their own expertise. These accounts, here termed reconstructed methods of reasoning, lead to computer systems that perform at a high level of proficiency but have the disadvantage that they often do not reflect the heuristics and processing constraints of a system user. (...) Reconstructed methods of reasoning are compared with authentic methods derived from the study of expert human behavior. Tests are proposed to establish the authenticity of reasoning methods and examples from medical diagnosis are used to illustrate how authentic methods of reasoning can be incorporated into an expert computer system. CiteULike Connotea Del.icio.us What's this? (shrink)

We present a theory of conversation comprehension in which a line of the conversation is “understood” by relating it to one of seven possible “points”. We define these points, and present examples where it seems plausible that the failure to “get the point” would indeed constitute a failure to understand the conversation. We argue that the recognition of such points must proceed in both a top down and bottom up fashion, and thus is likely to be quite complicated. Finally, we (...) see the processing of information in the conversation to be dependent upon which point classification the user decides upon. (shrink)

An infinite number of elastically colliding balls is considered in a classical, and then in a relativistic setting. Energy and momentum are not necessarily conserved globally, even though each collision does separately conserve them. This result holds in particular when the total mass of all the balls is finite, and even when the spatial extent and temporal duration of the process are also finite. Further, the process is shown to be indeterministic: there is an arbitrary parameter in the general solution (...) that corresponds to the injection of an arbitrary amount of energy (classically), or energy-momentum (relativistically), into the system at the point of accumulation of the locations of the balls. Specific examples are given that illustrate these counter-intuitive results, including one in which all the balls move with the same velocity after every collision has taken place. (shrink)

The rapid implementation and continuing expansion of forensic DNA databases around the world has been supported by claims about their effectiveness in criminal investigations and challenged by assertions of the resulting intrusiveness into individual privacy. These two competing perspectives provide the basis for ongoing considerations about the categories of persons who should be subject to non-consensual DNA sampling and profile retention as well as the uses to which such profiles should be put. This paper uses the example of the current (...) arrangements for forensic DNA databasing in England and Wales to discuss the ways in which the legislative and operational basis for police DNA databasing is reliant upon continuous deliberations over these and other matters by a range of key stakeholders. We also assess the effects of the recent innovative use of DNA databasing for “familial searching” in this jurisdiction in order to show how agreed understandings about the appropriate uses of DNA can become unsettled and reformulated even where their investigative effectiveness is uncontested. We conclude by making some observations about the future of what is recognized to be the largest forensic DNA database in the world. (shrink)

The authors present an approach to conceptualising and predicting environmental conflicts in which conflicts are analysed as a continuum of disagreement over values and options. They also operationalise this approach using an online values-centred survey tool, the ‘public-to-public decision support system’ (P2P-DSS). The authors put values and conflict in environmental management into perspective. Next, they review how values are defined in scholarship and operationalised for decision support. The relevance of values research to con-flict management is presented. With reference to a (...) real-world aggregate-mining conflict, the authors demonstrate how P2P-DSS can be used to collect data and categorise conflicts to enhance environmental management decision-making. The authors argue that P2P-DSS has potential to support values-sensitive thinking for environmental conflict management. They then set out research priorities to investigate the theoretical and practical implications of this approach. This work contributes to advancing values research in environmental conflict management and expanding values-based decision-making. (shrink)

SummaryThe Gainj of highland Papua New Guinea do not use contraception but have a total fertility rate of only 4·3 live births per woman, one of the lowest ever recorded in a natural fertility setting. From an analysis of cross-sectional demographic and endocrinological data, the causes of low reproductive output have been identified in women of this population as: late menarche and marriage, a long interval between marriage and first birth, a high probability of widowhood at later reproductive ages, low (...) effective fecundability and prolonged lactational amenorrhoea. These are combined with near-universal marriage, a low prevalence of primary sterility and a pattern of onset of secondary sterility similar to that found in other populations. Of all the factors limiting fertility, by far the most important are those involved in birth spacing, especially lactational amenorrhoea. (shrink)

An investigation is presented in which a computer simulation model (DIAGNOSER) is used to develop and test predictions for behavior of subjects in a task of medical diagnosis. The first experiment employed a process‐tracing methodology in order to compare hypothesis generation and evaluation behavior of DIAGNOSER with individuals at different levels of expertise (students, trainees, experts). A second experiment performed with only DIAGNOSER identified conditions under which errors in reasoning in the first experiment could be related to interpretation of specific (...) data items. Predictions derived from DIAGNOSER's performance were tested in a third experiment with a new sample of subjects. Data from the three experiments indicated that (1) form of diagnostic reasoning was similar for all subjects trained in medicine and for the simulation model, (2) substance of diagnostic reasoning employed by the simulation model was parable with that of the more expert subjects, and (3) errors in subjects' reasoning were attributable to deficiencies in disease knowledge and the interpretation of specific patient data cues predicted by the simulation model. (shrink)

Current methods of forensic DNA profiling, based on Polymerase Chain Reaction amplifications of a varying number of Short Tandem Repeat loci found at different locations on the human genome, are regularly described as constituting the “gold standard for identification” in contemporary society. At a time when criminal justice systems in Europe and North America increasingly seek to utilize the epistemic authority of a variety of sciences in support of the apprehension and prosecution of suspects and offenders, genetic science and recombinant (...) DNA technology are often singled out for particular approbation. Indeed, the development and application of DNA profiling has been widely described as the “greatest breakthrough in forensic science since fingerprinting.”. (shrink)

The word dignity is frequently used both in clinical and philosophical discourse when referring to and describing the ideal conditions of the patient's treatment, particularly the dying patient. An exploration of the variety of meanings associated with the word dignity will note dignity's ambiguous usage and reveal instrumental concepts needed to better understand the discourse of the dying. When applied to a critique of recent and contemporary criticisms of the medical community's handling of the dying, such concepts might provide a (...) more coherent notion of dignity. Rather than a separate construct, a death with dignity might be viewed as an interactive process among the dying and their caretakers. Together, this interdependent amalgam engages in humanizing communication aimed toward understanding the final needs and wants of the patient. (shrink)

Although it is widely acknowledged that Foucault’s accounts of the concept of heterotopia remain briefly sketched and somewhat confusing, the notion has provoked many interpretations and applications across a range of disciplines. In particular, it has been coupled with different stages or processes of modernity and persistently linked to forms of resistance. This article re-examines Foucault’s concept through a close textual analysis. It contrasts heterotopia with Lefebvre’s conceptualization of heterotopy and wider formulations of utopia. Drawing on Foucault’s study of the (...) spaces of literature of Borges, and particularly Blanchot, the article argues that heterotopia refers to varied spatial and temporal disruptions that imaginatively interrogate and undermine certain formulations of utopia. It concludes by outlining how heterotopia contests the space in which we live. (shrink)

The work presented here investigates the process by which one group of individuals solves the problem of detecting deceptions created by other agents. A field experiment was conducted in which twenty‐four auditors (partners in international public accounting firms) were asked to review four cases describing real companies that, unknown to the auditors, had perpetrated financial frauds. While many of the auditors failed to detect the manipulations in the cases, a small number of auditors were consistently successful. Since the detection of (...) frauds occurs infrequently in the work of a given auditor, we explain success by the application of powerful heuristics gained from experience with deceptions in everyday life. These heuristics implement a variation of Dennett's intentional stance strategy, which is based on interpreting detected inconsistencies in the light of the Deceiver's (i.e., management's) goals and possible actions. We explain failure to detect deception by means of perturbations (bugs) in the domain knowledge of accounting needed to apply these heuristics to the specific context of financial statement fraud. We test our theory by showing that a computational model of fraud detection that employs the proposed heuristics successfully detects frauds in the cases given to the auditors. We then modify the model by introducing perturbations based on the errors made by each of the auditors in the four cases. The resulting models account for 84 of the 96 observations (i.e., 24 auditors × four cases) in our data. (shrink)

The work presented here investigates the process by which one group of individuals solves the problem of detecting deceptions created by other agents. A field experiment was conducted in which twenty-four auditors (partners in international public accounting firms) were asked to review four cases describing real companies that, unknown to the auditors, had perpetrated financial frauds. While many of the auditors failed to detect the manipulations in the cases, a small number of auditors were consistently successful. Since the detection of (...) frauds occurs infrequently in the work of a given auditor, we explain success by the application of powerful heuristics gained from experience with deceptions in everyday life. These heuristics implement a variation of Dennett's intentional stance strategy, which is based on interpreting detected inconsistencies in the light of the Deceiver's (i.e., management's) goals and possible actions. We explain failure to detect deception by means of perturbations (bugs) in the domain knowledge of accounting needed to apply these heuristics to the specific context of financial statement fraud. We test our theory by showing that a computational model of fraud detection that employs the proposed heuristics successfully detects frauds in the cases given to the auditors. We then modify the model by introducing perturbations based on the errors made by each of the auditors in the four cases. The resulting models account for 84 of the 96 observations (i.e., 24 auditors × four cases) in our data. (shrink)

SummaryThe effects of infant suckling patterns on the post-partum resumption of ovulation and on birth-spacing are investigated among the Gainj of highland New Guinea. Based on hormonal evidence, the median duration of lactational anovulation is 20·4 months, accounting for about 75% of the median interval between live birth and next successful conception. Throughout lactation, suckling episodes are short and frequent, the interval changing slowly over time, from 24 minutes in newborns to 80 minutes in 3-year olds. Maternal serum prolactin concentrations (...) decline in parallel with the changes in suckling patterns, approaching the level observed in non-nursing women by about 24 months post-partum. A path analysis indicates that the interval between suckling episodes is the principal determinant of maternal prolactin concentration, with time since parturition affecting prolactin secretion only in so far as it affects suckling frequency. The extremely prolonged contraceptive effect of breast-feeding in this population thus appears to be due to a slow decline in suckling frequency with time since parturition and absence of a decline over time in hypothalamic–pituitary responsiveness to the suckling stimulus. (shrink)

An actual infinity of colliding balls can be in a configuration in which the laws of mechanics lead to logical inconsistency. It is argued that one should therefore limit the domain of these laws to a finite, or only a potentially infinite number of elements. With this restriction indeterminism, energy nonconservation and creatio ex nihilo no longer occur. A numerical analysis of finite systems of colliding balls is given, and the asymptotic behaviour that corresponds to the potentially infinite system is (...) inferred. (shrink)

"Sure to be controversial and of interest to a wide audience in feminist history" (Judith Grant, University of Southern California), this book draws on a wide range of political and intellectual traditions to demonstrate that, only by ...

There was more than one response to the nuclear age. Countering well-documented attitudes of protest and pessimism, Muriel Howorth (1886–1971) models a less examined strain of atomic enthusiasm in British nuclear culture. Believing that the same power within the atomic bomb could be harnessed to make the world a ‘smiling garden of Eden’, she utilized traditionally feminine domains of kitchen and garden in her efforts to educate the public about the potential of the atom and to ‘safeguard’ it on their (...) behalf. Boldly entering an overtly masculine arena in which, as a woman and a layperson, she was doubly an ‘other’, Howorth used a variety of publications, organizations and staged events to interpret atomic science and specifically to address women. Her efforts, dating roughly from 1948 to 1962, preceded but had broad overlaps with official Atoms for Peace programmes, and culminated in the formation of the Atomic Gardening Society in 1960 to promote the cultivation of gamma-irradiated seeds by British gardeners. (shrink)

Neoliberalism’s project of making the market the model for all modern freedoms means that critique needs to be able to unmask the distortions and to weigh the costs of its cultural appropriations and resignifications. This diagnostic/evaluative task presents a seeming challenge to the sociologist who is also answerable to scientific purposes that demand objectivity and impartiality. This article investigates two very different attempts to grasp this nettle. It contrasts Peter Wagner’s proposal to reclaim critique as ‘an essential feature of the (...) social sciences’ with Axel Honneth’s call for a reinvigoration of the ‘sociologizing dimension’ of a critical theory tradition. It is argued that neither approach is fully adequate to the challenges set by neoliberalism. The final section of the article suggests that to demonstrate the efficacy of sociology’s contribution to a critique of neoliberalism we need to review the relationship between theoretical reflection and everyday thinking and permit the former to do more analytic/evaluative work. (shrink)

The place of moral innocence in politics is the central theme of Peter Johnson's subtle and original book.

The aim of this book is to provide a realist account of the constants in physics as an alternative to the prevailing conventionalist perspective of many philosophers. To do so the author first focuses on the discussion of the most primitive categories of physical constants which underlie modern science. Subsequently, the conventionalist case is examined in depth and, while held to be coherent, is shown to provide an incomplete account of how constants and related concepts of dimensions function in science. (...) Having repudiated the conventionalist challenge, the positive case for a realist account is then considered and is found to be comfortably accommodated by modest realist accounts such as the natural ontological attitude (NOA). (shrink)

The paper reviews the extent to which main formulations in Habermas's recent major work, Between Facts and Norms, make ground against feminist objections to the Habermasian project. Although the later work does not tamper with the core project of Habermas's theory of modernity, the terms in which the procedural norms of democratic interaction are now conceived clarify the sympathetic relevance of Habermas's project to feminism's own vital concerns. There is reason to suppose Habermas's construction of the motivations that prompt and (...) guide struggles to achieve personal autonomy is rather too narrowly conceived to capture the range of impulses that inform contemporary feminism. Despite this, I suggest that there remain good reasons for supposing that the recent conception of the project opens up the possibility for a more positive stage in Habermas's dialogue with feminism. Key Words: aesthetic communication • feminism • Habermas • private/public relations • public sphere. (shrink)

In his book, The Principles of Mathematics , the young Bertrand Russell abandoned the common-sense notion that the whole must be greater than its part, and argued that wholes and their parts can be similar, e.g. where both are infinite series, the one being a sub-series of the other. He also rejected the popular view that the idea of an infinite number is self-contradictory, and that an infinite set or collection is an impossibility. In this paper, I intend to re-examine (...) Russell's wisdom in doing both these things, and see if it might not have made more sense, and caused his enterprise fewer problems, if he had simply stuck to our commonplace ideas. To this end, I shall also be considering his treatment of certain paradoxes that he claims can only be resolved by the abandonment of the above notions, as well as certain others which his theories appear to have generated. (shrink)

Culture and Enlightenment are the two words that best characterise the essence of György Markus's career, in whose honour this book is published. Markus devoted the last twenty years of research towards a theory of cultural objectivations and their pragmatics, and the great depth of his knowledge of the history of culture and philosophy informs all his teaching and writing. The pursuit of Enlightenment ideals attains reflective self-consciousness in Markus' works; forged in the knowledge of its own historicity, of the (...) embeddedness of rationalities in culture and in an awareness of the paradoxes that cling to the conscious affirmation of ideals which are no longer self evident or beyond questioning. In taking up the challenge of these paradoxes, Markus spans the whole history of modern philosophy and culture with a matchless authority.This book draws together contributions from leading figures in contemporary philosophy, who are also friends, colleagues and former students of György Markus. The book is divided into two sections: the first presents critical assessments of various aspects of Markus' wide-ranging works; the second presents contributions in celebration of his influence and his wide interests. In their critical assessment of Markus' work and in the demonstration of his influence, the contributors hope to convey something of the breadth and something of the excitement of doing philosophy in the company of György Markus. (shrink)

Frames of Deceit is a philosophical investigation of the nature of trust in public and private life. It examines how trust originates, how it is challenged, and how it is recovered when moral and political imperfections collide. In politics, rulers may be called upon to act badly for the sake of a political good, and in private life intimate attachments are formed in which the costs of betrayal are high. This book asks how trust is tested by human goods, moral (...) character and power relations. It explores whether an individual's experience of betrayal differs totally from that of a community when it loses and then seeks to recover a vital public trust. Although this is a work of political philosophy it is distinctive in examining three literary texts - Sophocles' Philoctetes, Shakespeare's Troilus and Cressida, and Zola's Thérése Raquin - in order to deepen our understanding of the place of trust in morality and politics. (shrink)

In The Philosophy of Manners Peter Johnson makes a compelling case for manners as a subject for investigation by modern moral philosophy. He examines manners as 'little virtues', explaining their distinctive conceptual characteristics and charting their intricate detail and relationships with each other. In demonstrating why manners are important to our mutual expectations, Johnson reveals a terrain which modern moral philosophy has left largely unmapped. Through a critical examination of the ethics of John Rawls and Alasdair MacIntyre, Johnson shows how (...) the nature of manners constitutes a philosophical problem both for liberalism and its critics. Taking the recent revival of virtue ethics as its broad starting point, The Philosophy of Manners discusses the 'little virtues' as they are treated in the Aristotelian and Kantian traditions of writing on ethics. Original features of the book include discussions of nameless virtues, the logical intricacy of the 'little virtues' which compose manners, and the nature of their orchestration by the more substantial virtues and moral concerns. The aim throughout is to give manners a philosophically defensible place in the moral life - a place which neither inflates nor understates their importance. --an examination of why manners are essential to moral literacy and an ethical society --the first work of its kind - no other ethical investigation concentrates on manners --relevant to the recent revival of interest in virtue ethics and any course in contemporary ethics --will provoke argument and disagreement. (shrink)

Unlike many major figures in Western intellectual history, Hobbes has refused to become dated and quietly take his appointed place in the museum of historical scholarship. Whether by way of adoption or reaction, his ideas have remained vibrant forces in mankind's attempts to understand the problems and dilemmas of living peaceably with one another. As Richard Ashcraft said a few years ago: One of the standards by which the greatness of political theorists is measured, is their ability to evoke in (...) us new insights into 'the human condition'. Only a few political writers have risen Dionysus-like from the titanic assaults of their critics to become even more formidable forces in the shaping of our destiny. One of these giants is surely the irascible l and irrepressible Thomas Hobbes . Given the power of Hobbes's thought, it is not then perhaps surprising to find that his writings have generated seemingly endless scholarly controversy and an astonishing range of imcompatible interpretations. Among other things, he has been interpreted as a theist and an atheist, as a utilitarian and a deontologist, a humanist and a scientist, as a traditional natural law theorist and a legal positivist, a contractualist and an absolutist - indeed, as Professor Morris notes in his contribution to the present volume, 'as almost any kind of philosophical 'ist except Platonist or Aristotelist'. (shrink)

A review of the literature on Corporate Codes of Ethics suggests that whilst there exists an informative body of literature concerning the prevalence of such codes, their design, implementation and promulgation, it is also evident that there is a relative lack of consideration of their impact upon members' everyday organizational behaviour. By drawing upon organizational sociology and psychology this paper constructs a contextualist and interpretive model which seeks to enable an analysis and evaluation of their effects upon individual, group and (...) organizational behaviour. (shrink)

This chapter offers a diagnosis of misconstructions in anti‐humanist feminism and shows how a radical or critical humanism might help to theorize feminism's critical, emancipatory interests. It traces something of the troubled history of modern feminism's relationship with humanism. The chapter suggests that feminism's repudiation has been based on a narrow version; on one that confuses humanism with the rationalist agendas of modern science. It also considers how feminism has rebuilt itself by reinterpreting its critical agendas through the lens provided (...) by critical humanism. Todorov stresses that humanism is concerned with human ways of knowing. He advances three general propositions: that all humans belong to the same species, that they are inherently sociable, and finally that they are essentially indeterminate. Feminism's critical purposes is re‐fashioned and strengthened as it rearticulates its appropriations along with dynamic changes occurring within Enlightenment thinking. (shrink)

ABSTRACTCollingwood's The New Leviathan is a difficult text. It comprises philosophy, political theory, political opinion and history in what is sometimes an uneasy amalgam. Despite its being the culmination of thirty years of work in ethics and political theory, the final text was clearly affected by the adverse circumstances under which it was written, these largely being Collingwood's illness which increasingly affected his ability to work as the writing of The New Leviathan progressed. This paper seeks to disentangle the composition (...) of the book thereby shedding light on its distinctive character as the last substantial piece of philosophical work published in Collingwood's lifetime. (shrink)