Achieving space domain awareness requires the identification, characterization, and tracking of space objects. Storing and leveraging associated space object data for purposes such as hostile threat assessment, object identification, and collision prediction and avoidance present further challenges. Space objects are characterized according to a variety of parameters including their identifiers, design specifications, components, subsystems, capabilities, vulnerabilities, origins, missions, orbital elements, patterns of life, processes, operational statuses, and associated persons, organizations, or nations. The Space Object Ontology provides a consensus-based realist framework (...) for formulating such characterizations in a computable fashion. Space object data are aligned with classes and relations in the Space Object Ontology and stored in a dynamically updated Resource Description Framework triple store, which can be queried to support space domain awareness and the needs of spacecraft operators. This paper presents the core of the Space Object Ontology, discusses its advantages over other approaches to space object classification, and demonstrates its ability to combine diverse sets of data from multiple sources within an expandable framework. Finally, we show how the ontology provides benefits for enhancing and maintaining longterm space domain awareness. (shrink)
We initially describe a feature-rich discriminative Conditional Random Field (CRF) model for Information Extraction in the workshop announcements domain, which offers good baseline performance in the PASCAL shared task. We then propose a method for leveraging domain knowledge in Information Extraction tasks, scoring candidate document labellings as one-value-per-ﬁeld templates according to domain feasibility after generating sample labellings from a trained sequence classiﬁer. Our relational models evaluate these templates according to our intuitions about agreement in the domain: workshop acronyms should resemble (...) their names, workshop dates occur after paper submission dates. These methods see a 5% f-score improvement in ﬁelds retrieved when sampling labellings from a Maximum-Entropy Markov Model, however we do not observe improvement over a CRF model. We discuss reasons for this, including the problem of recovering all ﬁeld instances from a best template, and propose future work in adapting such a model to the CRF, a better standalone system. (shrink)
Mysticism and the mystical experience seemingly play little or no part in our Western tradition. Certainly there is no mystical tradition in the West such as Zen Buddhism, nor is there any great understanding of or influence from the writings of Heraclitus, Spinoza, or the mystical passages in the early work of Wittgenstein. Mysticism has been generally misunderstood in the West, and it has even evoked the attacks of philosophers and theologians. 1 Mysticism to many conjures up images of monks (...) meditating in caves; it is generally pictured as esoteric, otherworldly, irrational, and at best irrelevant to the daily lives of human beings. If what we say below is correct, it will be seen that mysticism is none of these but is rather a singular human experience that lies at the foundations of civilization. (shrink)
With the goal of better understanding how science, religion, and poetic art came together in the work of Christopher Southgate, the authors first explore his spiritual poetry. They come away with a better understanding of the author’s commitment to a broad naturalism that contributes, along with his own faith experience, to his prose works in the emerging field of ecotheology. The authors conclude that Southgate’s work is part of the worldwide emergence of a theological rationale that supports environmentalism, the (...) protection of species, and the conservation of biodiversity. The authors find Southgate’s poetry warm, appealing, accessible, and re-readable to good effect, but with a thread of danger and warning throughout. Both features are quite appropriate for the environmental movement in the twenty-first century. (shrink)
This paper argues that while Heidegger showed the importance of architecture in altering people's modes of being to avoid global ecological destruction, the work of Christopher Alexander offered a far more practical orientation to deal with this problem.
“Marlowe wrote Edward The Second in 1590. He found a suitable tragic theme in the Holinshed’s account of Edward II’s reign though it was not a promising dramatic material from the chronological point of view as the events were disjointed and uninspiring disastrous. Improper coordinates of the sources has left its mark on Marlowe’s play, nevertheless, this is his most finished and satisfactory of plays…Edward The Second can surely be regarded as Marlowe’s finest technical achievement.” (Edited, Dr. S. Sen…)[http://philpapers.org/profile/112741].
This article examines the philosophical teaching of a colorful Oxford alumnus and Roman Catholic convert, Christopher Davenport, also known as Franciscus à Sancta Clara or Francis Coventry. At the peak of Puritan power during the English Interregnum and after five of his Franciscan confrères had perished for their missionary work, our author tried boldly to claim modern cosmology and atomism as the unrecognized fruits of medieval Scotism. His hope was to revive English pride in the golden age of medieval (...) Oxford and to defend English Franciscans as more legitimately patriotic and scientifically progressive than Puritan millenarians. (shrink)
An introduction to the March, 2005 symposium “The Political Theory of Organizations: A Retrospective Examination of Christopher McMahon’s Authority and Democracy” held in San Francisco as part of the Society for Business Ethics Group Meeting at the Pacific Division Meetings of the American Philosophical Association.
This paper is about Christopher Wren’s engravings for Thomas Willis’ The Anatomy of the Brain and Nerves of 1664. It is a study in the intersection of medicine and art in 17th century Britain. Willis, an eminent English physician and anatomist, was a major figure in the development of modern neurology, and The Anatomy of the Brain and Nerves was his most famous and influential book. Wren was Willis’ assistant and medical artist. I discuss the visual strategies employed by (...) Wren to present their research and frame it as genuine knowledge. (shrink)
The untimely passing of Reverend Canon Dr Christopher Newell, AM, came as a shock to many in the bioethics world. As well as an obituary, this article notes a number of important themes in his work, and provides a select bibliography. Christopher's major contribution to this field is that he was one of a handful of scholars who made disability not only an acceptable area of bioethics—indeed a vital, central, fertile area of enquiry. Crucially Christopher emphasised that (...) where we do ethics is actually in everyday life—while we mourn his passing, his rich work and example will continue to inspire bioethical inquiry. (shrink)
With the goal of understanding how Christopher Southgate communicates his in-depth knowledge of both science and theology, we investigated the many roles he assumes as a teacher. We settled upon wide-ranging topics that all intertwine: (1) his roles as author and coordinating editor of a premier textbook on science and theology, now in its third edition; (2) his oral presentations worldwide, including plenaries, workshops, and short courses; and (3) the team teaching approach itself, which is often needed by others (...) because the knowledge of science and theology do not always reside in the same person. Southgate provides, whenever possible, teaching contexts that involve students in experiential learning, where they actively participate with other students.We conclude that Southgate’s ultimate goal is to teach students how to reconcile science and theology in their values and beliefs, so that they can take advantage of both forms of rational thinking in their own personal and professional lives. The co-authors consider several examples of models that have been successfully used by people in various fields to integrate science and religion. (shrink)
‘Greek Ethics’, an undergraduate class taught by the British moral philosopher N. J. H. Dent, introduced this reviewer to the ethical philosophy of ancient Greece. The class had a modest purview—a sequence of Socrates, Plato, and Aristotle—but it proved no less effective, in retrospect, than more synoptic classes for having taken this apparently limited and (for its students and academic level) appropriate focus. This excellent Companion will now serve any such class extremely well, allowing students a broader exposure than that (...) traditional sequence, without sacrificing the class’s circumscribed focus. The eighteen chapters encompass some of what went before, and surprisingly much of what came after, those three central philosophers—including, for instance, a discussion of Plotinus and his successors, as well as a discussion of Horace. The book will therefore be useful in many different types of class on ethical philosophy in the ancient world. This Companion will be useful not only to students, but also to at least three further groups: specialists in ancient Greek philosophy (since some contributors advance significant new positions, e.g. R. Kamtekar on Plato’s ethical psychology and D. Charles on Aristotle’s ‘ergon argument’ as already implicitly invoking ‘to kalon’); scholars working in academic subjects adjacent to ancient Greek philosophy; and contemporary moral philosophers. (shrink)
Christopher Peacocke’s A Study of Concepts is a dense and rewarding work. Each chapter raises many issues for discussion. I know three different people who are writing reviews of the volume. It testifies to the depth of Peacocke’s book that each reviewer is focusing on a quite different set of topics.
In this interview, Christopher Norris discusses a wide range of issues having to do with postmodernism, deconstruction and other controversial topics of debate within present-day philosophy and critical theory. More specifically he challenges the view of deconstruction as just another offshoot of the broader postmodernist trend in cultural studies and the social sciences. Norris puts the case for deconstruction as continuing the 'unfinished project of modernity' and—in particular—for Derrida's work as sustaining the values of enlightened critical reason in various (...) spheres of thought from epistemology to ethics, sociology and politics. Along the way he addresses a number of questions that have lately been raised with particular urgency for teachers and educationalists, among them the revival of creationist doctrine and the idea of scientific knowledge as a social, cultural, or discursive construct. In this context he addresses the 'science wars' or the debate between those who uphold t. (shrink)
For intellectuals, and probably others, one form of escapism is a kind of constricted and shallow hyper-realism—the hyper-realism of having a dead-end job, even though one has a PhD or an IQ of 170. And that sort of hyper-realism is pseudo-realism, because realism is not about having a bad life; it is having the courage to have a good life, which the intellectual with the dead end job does not have.
Professor Christopher Stead was Ely Professor of Divinity from 1971 until his retirement in 1980 and one of the great contributors to the Oxford Patristic Conferences for many years. In this paper I reflect on his work in Patristics, and I attempt to understand how his interests diverged from the other major contributors in the same period, and how they were formed by his philosophical milieu and the spirit of the age. As a case study to illustrate and diagnose (...) his approach, I shall focus on a debate between Stead and Rowan Williams about the significance of the word idios in Arius's theology (in the course of which I also make some suggestions of my own about the issue). (shrink)
In his recent book, Aquinas and the Ship of Theseus, Christopher Brown has argued that the metaphysics of St. Thomas is preferable to contemporary analyticviews because it can solve the “problem of material constitution” without requiring us to relinquish any of the common-sense beliefs that generate that problem. In this critical study, I show that in the case of both substances and aggregates, Brown’s Aquinas endorses views that are extremely implausible. Consequently, even if it is granted that the solutions (...) to the PMC fall right out of his views, it is still not clear that this gives us reason to prefer his ontology to its competitors. I also consider Brown’s take on the status of the human being after death. (shrink)
I have argued that substance ontology cannot be used to determine the moral status of embryos. Patrick Lee, Christopher Tollefsen, and Robert George wrote a Reply to those arguments in this Journal. In that Reply, Lee, Tollefsen, and George defended and clarified their position that their substance ontology arguments prove that the zygote and the adult into which it develops are the same entity that share the same essence. Here, I show the following: Even using the substance ontology framework (...) to which Lee, Tollefsen, and George subscribe, we cannot know when in development substance changes cease. Substance ontology cannot therefore be used to assign moral status to embryos. The Lee, Tollefsen, and George substance ontology framework should not be applied to the study of development or to biological discourse in general, because this framework depends on premises that do not apply. (shrink)
This “open letter” to Christopher Boorse is a response to his influential naturalist analysis of disease from the perspective of linguistic-analytic value theory. The key linguistic-analytic point against Boorse is that, although defining disease value free, he continue to use the term with clear evaluative connotations. A descriptivist analysis of disease would allow value-free definition consistently with value-laden use: but descriptivism fails when applied to mental disorder because it depends on shared values whereas the values relevant to mental disorders (...) are highly diverse. A part-function analysis, similarly, although initially persuasive for physical disorders, fails with the psychotic mental disorders because these, characteristically, involve disturbances of the rationality of the person as a whole. The difficulties encountered in applying naturalism to mental disorders point, linguistic-analytically, to the possibility that there is, after all, an evaluative element of meaning, deeply hidden but still logically operative, in the concept of disease. (shrink)
As author Christopher Prendergast acknowledges, Counterfactuals: Paths of the Might have Been does not attempt to offer a theory of counterfactuals, nor does it develop a contribution to an existing theory. Instead, it is as the author puts it an “anthropology of the counterfactual”. However, it is nothing as systematic as that. It is not a survey, but a series of “listening exercises” which roam over literature, history, art, philosophy, music, and popular culture. He admits that this exercise of (...) collecting counterfactuals is “quirky business” akin “wool gathering” and “purposeless daydreaming”. However, Prendergast does have some aims in Counterfactuals. He claims that he wants to show the variety of counterfactuals, how they are used, and how they resonate in human experience. If the book aims to support an overarching conclusion, it is probably this: “What we do with counterfactuals and what they do to us are integral to making sense of humanity”. (shrink)
Medical analogies are commonly invoked in both Indian Buddhist dharma and Hellenistic philosophy. In the Pāli Canon, nirvana is depicted as a form of health, and the Buddha is portrayed as a doctor who helps us attain it. Much later in the tradition, Śāntideva described the Buddha’s teaching as ‘the sole medicine for the ailments of the world, the mine of all success and happiness.’ Cicero expressed the view of many Hellenistic philosophers when he said that philosophy is ‘a medical (...) science for the mind.’ He thought we should ‘hand ourselves over to philosophy, and let ourselves be healed.’ ‘For as long as these ills [of the mind] remain,’ he wrote, ‘we cannot attain to happiness.’ There are many different forms of medical analogy in these two traditions, but the most general form may be stated as follows: just as medicine cures bodily diseases and brings about physical health, so Buddhist dharma or Hellenistic philosophy cures mental diseases and brings about psychological health—where psychological health is understood as the highest form of happiness or well-being. Insofar as Buddhist dharma involves philosophy, as it does, both renditions of the analogy may be said to declare that philosophy cures mental diseases and brings about psychological health. This feature of the analogy—philosophy as analogous to medical treatment—has attracted considerable attention. (shrink)
In this review of Christopher Winch's new book, Education, Autonomy and Critical Thinking (2006), I discuss its main theses, supporting some and criticising others. In particular, I take issue with several of Winch's claims and arguments concerning critical thinking and rationality, and deplore his reliance on what I suggest are problematic strains of the later Wittgenstein. But these criticisms are not such as to upend Winch's powerful critique of antiperfectionism and 'strong autonomy' or his defence of 'weak autonomy'. His (...) account of autonomy as an educational aim is important and in several respects compelling. (shrink)
Ad hominem arguments are generally dismissed on the grounds that they are not attempts to engage in rational discourse, but are rather aimed at undermining argument by diverting attention from claims made to assessments of character of persons making claims. The manner of this dismissal however is based upon an unlikely paradigm of rationality: it is based upon the presumption that our intellectual capacities are not as limited as in fact they are, and do not vary as much as they (...) do between rational people. When we understand rationality in terms of intellectual virtues, however, which recognize these limitations and provide for the complexity of our thinking, ad hominem considerations can sometimes be relevant to assessing arguments. (shrink)
The sovereignty of the people, it is widely said, is the foundation of modern democracy. The truth of this claim depends on the plausibility of attributing sovereignty to “the people” in the first place, and I shall express skepticism about this possibility. I shall suggest as well that the notion of popular sovereignty is complex, and that appeals to the notion may be best understood as expressing several different ideas and ideals. This essay distinguishes many of these and suggests that (...) greater clarity at least would be obtained by focusing directly on these notions and ideals and eschewing that of sovereignty. My claim, however, will not merely be that the notion is multifaceted and complex. I shall argue as well that the doctrine that the people are, or ought to be, sovereign is misleading in potentially dangerous ways, and is conducive to a misunderstanding of the nature of politics, governance, and social order. It would be well to do without the doctrine, but it may be equally important to understand its errors. Our understandings and justifications of democracy, certainly, should dispense with popular sovereignty. (shrink)
Paul Grice warned that ‘the nature of conventional implicature needs to be examined before any free use of it, for explanatory purposes, can be indulged in’ (1978/1989: 46). Christopher Potts heeds this warning, brilliantly and boldly. Starting with a definition drawn from Grice’s few brief remarks on the subject, he distinguishes conventional implicature from other phenomena with which it might be confused, identifies a variety of common but little-studied kinds of expressions that give rise to it, and develops a (...) formal, multidimensional semantic framework for systematically capturing its distinctive character. The book is a virtuosic blend of astute descriptive observations and technically sophisticated formulations. Fortunately for the technically unsophisticated reader, the descriptive observations can be appreciated on their own. (shrink)
Christopher Johnson has put forward in this journal the view that ad hominem reasoning may be more generally reasonable than is allowed by writers such as myself, basing his view on virtue epistemology. I review his account, as well as the standard account, of ad hominem reasoning, and show how the standard account would handle the cases he sketches in defense of his own view. I then give four criticisms of his view generally: the problems of virtue conflict, vagueness, (...) conflation of speech acts, and self-defeating counsel. I then discuss four reasons why the standard account is superior: it better fits legal reality, the account of other fallacies, psychological science, and political reality. (shrink)
Cox’s theorem states that, under certain assumptions, any measure of belief is isomorphic to a probability measure. This theorem, although intended as a justification of the subjectivist interpretation of probability theory, is sometimes presented as an argument for more controversial theses. Of particular interest is the thesis that the only coherent means of representing uncertainty is via the probability calculus. In this paper I examine the logical assumptions of Cox’s theorem and I show how these impinge on the philosophical conclusions (...) thought to be supported by the theorem. I show that the more controversial thesis is not supported by Cox’s theorem. (shrink)