Computational models of semantic memory exploit information about co-occurrences of words in naturally occurring text to extract information about the meaning of the words that are present in the language. Such models implicitly specify a representation of temporal context. Depending on the model, words are said to have occurred in the same context if they are presented within a moving window, within the same sentence, or within the same document. The temporal context model (TCM), which specifies a particular definition of (...) temporal context, has proved useful in the study of episodic memory. The predictive temporal context model (pTCM) uses the same definition of temporal context to generate semantic memory representations. Taken together pTCM and TCM may prove to be part of a general model of declarative memory. (shrink)
A class of states obtained by extremizing the energy of a system under certain conditions is introduced and their properties are compared with those of the coherent states. Conditions under which these states move without change of shape and follow the classical path are investigated.
Objective To ascertain and improve the understanding and use of chaperones among the patients of an English general practice (GP). Background Doctors have long been advised to have a third party present during intimate physical examinations. Little is known about the understanding of the term in the general population in England and the consequences of this for the promotion and use of chaperones in GP. We audited the understanding and use of chaperones in an English GP. The aim of the (...) study was to increase the awareness of the availability of chaperones in our population. Methods A questionnaire was given randomly to 100 patients attending the GP surgery. Participants were asked about their awareness of and frequency of requesting a chaperone while undergoing intimate examinations. Based on the initial results, a poster was designed for the waiting room to increase awareness. Data were collected with the same questionnaire to see if the new poster altered surgery attendees understanding and likely subsequent use of chaperones. Results In the initial audit, 29% of patients were unaware of the term chaperone, and only one person (1%) had ever requested a chaperone. After the introduction of a specially designed poster, the results showed an improvement in awareness from 71% to 89%, and the likely frequency of using a chaperone increased from 1% to 4%. Conclusion There is a need to improve the understanding of the general population about chaperones if we are to see greater use of chaperones in GP. (shrink)
The reduction of the lambda calculus to the theory of combinators in [Sch¨ onfinkel, 1924] applies to positive implicational logic, i.e. to the typed lambda calculus, where the types are built up from atomic types by means of the operation A −→ B, to show that the lambda operator can be eliminated in favor of combinators K and S of each type A −→ (B −→ A) and (A −→ (B −→ C)) −→ ((A −→ B) −→ (A −→ C)), (...) respectively.1 I will extend that result to the case in which the types are built up by means of the general function type ∀x : A.B(x) as well as the disjoint union type ∃x : A.B(x)– essentially to the theory of [Howard, 1980]. To extend the treatment of −→ to ∀ we shall need a generalized form of the combinators K and S, and to deal with ∃ we will need to introduce a new form of the combinator S.. (shrink)
The late 20th century saw great movement in the philosophy of language, often critical of the fathers of the subject-Gottlieb Frege and Bertrand Russell-but sometimes supportive of (or even defensive about) the work of the fathers. Howard Wettstein's sympathies lie with the critics. But he says that they have often misconceived their critical project, treating it in ways that are technically focused and that miss the deeper implications of their revolutionary challenge. Wettstein argues that Wittgenstein-a figure with whom the (...) critics of Frege and Russell are typically unsympathetic-laid the foundation for much of what is really revolutionary in this late 20th century movement. The subject itself should be of great interest, since philosophy of language has functioned as a kind of foundation for much of 20th century philosophy. But in fact it remains a subject for specialists, since the ideas are difficult and the mode of presentation is often fairly technical. In this book, Wettstein brings the non-specialist into the conversation (especially in early chapters); he also reconceives the debate in a way that avoids technical formulation. The Magic Prism is intended for professional philosophers, graduate students, and upper division undergraduates. (shrink)
This anthology of essays on the work of David Kaplan, a leading contemporary philosopher of language, sprang from a conference, "Themes from Kaplan," organized by the Center for the Study of Language and Information at Stanford University.
Most direct reference theorists about indexicals and proper names have adopted the thesis that singular propositions about physical objects are composed of physical objects and properties (and/or relations—I will use "properties" for brevity's sake).1 There have been a number of recent proponents of such a view, including Scott Soames, Nathan Salmon, John Perry, Howard Wettstein, and David Kaplan.2 Since Kaplan is the individual who (at least recently) is best known for holding such a view, let's call a proposition (...) that is composed of objects and properties a K-proposition. In this paper, I will attempt to show that (given some fairly plausible assumptions) a direct reference view about the content of proper names and indexicals leads very naturally to the position that all singular propositions about physical objects are K-propositions.3 Then, I will attempt to show that this view of propositions is false. I will spend the bulk of the paper on this latter task. My goal in the paper, then, is to show that adopting the direct reference thesis comes at a cost (or for those who thought it already came at a cost because of (alleged) problems the view has with problems such as opacity and the significance of some identity statements; it comes at even more of a cost). (shrink)
The early twentieth century witnessed a shift in the way philosophers of science thought about traditional 'problems of induction'. Keynes championed the idea that Hume's Problem was not a problem about causation (which had been the traditional reading of Hume) but rather a problem about induction. Moreover, Keynes (and later Nicod) viewed such problems as having both logical and epistemological components. Hempel picked up where Keynes and Nicod left off, by formulating a rigorous formal theory of inductive logic. This spawned (...) a new branch of philosophy of science called confirmation theory. Hempel's theory of confirmation was based on a few very simple (and seemingly plausible) assumptions about (instantial) 'inductive-logical support'. However, as Hempel himself was keenly aware, even such simple and seemingly plausible assumptions give rise to various puzzles and paradoxes. The two most famous paradoxes of confirmation were discovered by Hempel and Goodman. This article discusses Hempel's paradox (which is known as 'the' paradox of confirmation, since it was discovered first). However, many of the historical developments surrounding Hempel's paradox (also known as the 'raven paradox') are also crucial for understanding Goodman's later ('grue') paradox. Author Recommends: Branden Fitelson, 'The Paradox of Confirmation', Philosophy Compass 1/1 (2006): 95–113, doi: [DOI link]. In this article, I explain how the inconsistency between Hempel's intuitive resolution and his official theory of confirmation affects the historical dialectic about the paradox and how it illuminates the nature of confirmation. After the survey, I argue that Hempel's intuitions about the paradox of confirmation were basically correct, and that it is his theory that should be rejected, in favor of a (broadly) Bayesian account of confirmation. C. G. Hempel, 'Studies in the Logic of Confirmation' (I and II), Mind 54 (1945): 1–26, 97–121, dois: [DOI link]; [DOI link]. This is the locus classicus of traditional (instantial) confirmation theory. It is here that original motivations for, traditional approaches to, and paradoxes of confirmation are discussed in depth for the first time, under the rubric 'confirmation theory'. Hempel's discussion (which picks up where Keynes and Nicod left off) is chock full of crucial historical, logical, and epistemological insights. J. M. Keynes, A Treatise on Probability (London: Macmillan, 1921). Keynes does not get enough credit in this context. But, basically, chapters 18 to 23 of this classic book planted the seeds for almost all of modern confirmation theory. Nicod and Hempel (as well as Hosiasson-Lindenbaum, Carnap, and others) were, basically, just picking-up where Keynes left off. J. Nicod, The Logical Problem of Induction (1923), reprinted in Foundations of Geometry and Induction (London: Routledge, 2000). Nicod's essay expands upon Keynes's work. Nicod is the first to use the term 'confirmation', in connection with a relation of 'inductive-logical support'. Nicod endorses several key confirmation-theoretic principles (which were already advanced by Keynes). In the hands of Hempel, Nicod's work later becomes an important historical foil. J. Hosiasson–Lindenbaum, 'On Confirmation', Journal of Symbolic Logic 5 (1940): 133–48. This essay contains most (if not all) of the basic ingredients of the 'Bayesian' approaches to the paradox of confirmation that appeared later. It also sheds much light on an important dispute between Keynes and Nicod concerning one of the claims Keynes makes (in his Treatise) about 'long-run convergence' in certain (instantial) confirmation-theoretic problems. This paper also contains one of the earliest rigorous axiomatizations of conditional (subjective or logical) probability. R. Carnap, Logical Foundations of Probability (Chicago, IL: University of Chicago, 1950). This is Carnap's encyclopaedic work on inductive logic and probability. There is a tremendous amount of wisdom in here. For present purposes, the sections on Hempel's theory of confirmation (in contrast to probabilistic approaches to confirmation, such as Hosiasson–Lindenbaum's and Carnap's) are probably most important and salient (see §§87–8). I. J. Good, 'The Paradox of Confirmation', British Journal for the Philosophy of Science 11 (1960): 145–9. C. Chihara, 'Quine and the Confirmational Paradoxes', in Midwest Studies in Philosophy. Vol. 6: The Foundations of Analytic Philosophy, eds. Peter A. French, Theodore E. Uehling, Jr., and Howard K. Wettstein (Minneapolis, MN: University of Minnesota Press, 1981), 425–52. J. Earman, Bayes or Bust: A Critical Examination of Bayesian Confirmation Theory (Cambridge, MA: MIT Press, 1992), specifically: pp. 63–73. R. M. Royall, Statistical Evidence: A Likelihood Paradigm (New York, NY: Chapman & Hall, 1997), specifically: the Appendix on 'The Paradox of the Ravens'. C. McKenzie and L. Mikkelsen, 'The Psychological Side of Hempel's Paradox of Confirmation', Psychonomic Bulletin & Review 7 (2000): 360–6. P. Maher, 'Probability Captures the Logic of Scientific Confirmation', in Contemporary Debates in the Philosophy of Science, ed. Christopher Hitchcock (Oxford: Blackwell, 2004), 69–93. P. Vranas, 'Hempel's Raven Paradox: A Lacuna in the Standard Bayesian Solution', British Journal for the Philosophy of Science 55 (2004): 545–60. This is a list of seven of my favourite papers on the paradox of confirmation, since 1950 (listed in chronological order). Most of these are coming from a broadly 'Bayesian' perspective. In particular, I recommend Vranas as a good starting point here. Online Materials: http://fitelson.org/probability/ Probability & Induction (PHIL 148, UC-Berkeley, Spring 2008) This is the Web site for an undergraduate course on probability and induction that I taught at UC-Berkeley in Spring 2008. Much of the course focuses on confirmation theory (including the paradoxes of confirmation). There are many links there to lecture notes, papers, books and other salient online resources. http://fitelson.org/confirmation/ Confirmation (graduate seminar, UC-Berkeley, Fall 2007) This is the Web site for a graduate seminar on confirmation that I taught at UC-Berkeley in Fall 2007. This seminar is a historical trace of induction/confirmation, from Aristotle to Goodman (mostly, focusing on the 20th century and the paradoxes of confirmation). Sample Syllabus: See the online syllabi for Confirmation and/or Probability & Induction (above). Note: those online syllabi contain electronic copies of many of the salient readings. (shrink)
In this paper it is argued that qualitative theories (Q-theories) can be used to describe the statistical structure of cross classified populations and that the notion of verisimilitude provides an appropriate tool for measuring the statistical adequacy of Q-theories. First of all, a short outline of the post-Popperian approaches to verisimilitude and of the related verisimilitudinarian non-falsificationist methodologies (VNF-methodologies) is given. Secondly, the notion of Q-theory is explicated, and the qualitative verisimilitude of Q-theories is defined. Afterwards, appropriate measures for the (...) statistical verisimilitude of Q-theories are introduced, so to obtain a clear formulation of the intuitive idea that the statistical truth about cross classified populations can be approached by falsified Q-theories. Finally, it is argued that some basic intuitions underlying VNF-methodologies are shared by the so-called prediction logic, developed by the statisticians and social scientists David K. Hildebrand, James D. Laing and Howard Rosenthal. (shrink)
A distinction is developed between two uses of definite descriptions, the "attributive" and the "referential." the distinction exists even in the same sentence. several criteria are given for making the distinction. it is suggested that both russell's and strawson's theories fail to deal with this distinction, although some of the things russell says about genuine proper names can be said about the referential use of definite descriptions. it is argued that the presupposition or implication that something fits the description, present (...) in both uses, has a different genesis depending upon whether the description is used referentially or attributively. this distinction in use seems not to depend upon any syntactic or semantic ambiguity. it is also suggested that there is a distinction between what is here called "referring" and what russell defines as denoting. definite descriptions may denote something, according to his definition, whether used attributively or referentially. (shrink)
For many people the existence of God is by no means a sufficiently clear feature of reality. This problem, the fact of divine hiddenness, has been a source of existential concern and has sometimes been taken as a rationale for support of atheism or agnosticism. In this new collection of essays, a distinguished group of philosophers of religion explore the question of divine hiddenness in considerable detail. The issue is approached from several perspectives including Jewish, Christian, atheist and agnostic. There (...) is coverage of the historical treatment of divine hiddenness as found in the work of Maimonides, St. John of the Cross, Jonathan Edwards, Kierkegaard, and various Biblical writers. A substantial introduction clarifies the main problems of and leading solutions to divine hiddenness. Primarily directed at philosophers of religion, theologians, and scholars of religious studies, this collection could also serve as a textbook for upper-level courses in philosophy of religion. (shrink)
A special issue of The Philosophical Forum , one of the most prestigious philosophy journals, is now available to a wider readership through its publication in book form. The volume includes twelve essays in three sections-- Philosophical Traditions; the African-American Tradition; and Racism, Identity, and Social Life. Contributors are: K. Anthony Appiah, Kwasi Wiredu, Lucius Outlaw, Leonard Harris, Bernard Boxill, Frank M. Kirkland, Tommy L. Lott, Adrian M.S. Piper, Laurence Thomas, Michele M. Moody-Adams, Anita L. Allen, and Howard McGary. (...) The introduction is by John P. Pittman. (shrink)
In addition to the standard ellipsis process known as VP-ellipsis, another ellipsis process, known as pseudo-gapping, was first brought to the fore-front in the 1970’s by Sag (1976) and N. Levin (1986). This process elides subparts of a VP, as in (1): (1) Although I don’t like steak, I do___pizza. Developing ideas of K.S. Jayaseelan (Jayaseelan (1990)), Howard Lasnik has developed an analysis in which pseudo-gapping, which, in some instances, looks as though it is simply deleting a verb, is (...) in fact deletion of a verb phrase, so that pseudo-gapping is really a probe into the structure of the verb phrase. I will examine pseudo-gapping in detail, and will show that it truly is a gold mine of insight into a number of fundamental issues in syntax. More concretely, I will demonstrate that a careful, detailed analysis of this process will bear on the derivational level at which Principle A of the binding theory applies, as well as the amount of explicit encoding within syntactic representations of informational structure, particularly focus. The paper will also re-assess Lasnik’s conclusion that pseudo-gapping provides evidence for Larson’s (1988) V-raising to a higher empty V position, a case of head movement, and will show that the movement involved is actually a case of remnant movement, or XP-movement. (shrink)
Chomsky, meanwhile, has long expressed great reluctance even to recommend reading material to his audiences, let alone how they ought to vote, on the basis that they shouldnâ€™t be substituting his judgment for their own. At the same time he has equally consistently maintained that elections are an elaborate PR charade unworthy of more than the briefest attention, a stance he somehow considers consistent with the petitionâ€™s call to put the presidential elections at the top of our list of concerns (...) this year. Fortunately, these two fine dissidents havenâ€™t joined in the vilification of Nader that has become all the rage among Democrats and all-too-many progressives, at least not yet. (shrink)
The nature of reference, or the relation of a word to the object to which it refers, has been perhaps the dominant concern of twentieth-century analytic philosophy. Extremely influential arguments by Gottlob Frege around the turn of the century convinced the large majority of philosophers that the meaning of a word must be distinguished from its referent, the former only providing some kind of direction for reaching the latter. In the last twenty years, this Fregean orthodoxy has been vigorously challenged (...) by those who argue that certain important kinds of words, at least, refer directly without need of an intermediate meaning or sense. The essays in this volume record how a long-term study of Frege has persuaded the author that Frege's pivotal distinction between sense and reference, and his attendant philosophical views about language and thought, are unsatisfactory. Frege's perspective, he argues, imposes a distinctive way of thinking about semantics, specifically about the centrality of cognitive significance puzzles for semantics. Freed from Frege's perspective, we will no longer find it natural to think about semantics in this way. (shrink)
Philosophy and Poetry is the 33rd volume in the Midwest Studies in Philosophy series. It begins with contributions in verse from two world class poets, JohnAshbery and Stephen Dunn, and an article by Dunn on the creative processthat issued in his poem. The volume features new work from an internationalcollection of philosophers exploring central philosophical issues pertinent topoetry as well as the connections between the two domains.
This collection of essays focuses on a current issue of central important in contemporary philosophy, the relationship between philosophy and empirical studies. Explores in detail a range of examples which demonstrate how the older paradigm – philosophy as conceptual analysis – is giving way to a more varied set of models of philosophical work Each of the featured papers is a previously unpublished contribution by a major scholar.