386 research outputs found
Conditional Belief Types
No full textWe study type spaces where a player’s type at a state is a conditional probability on the space. We axiomatize these spaces using conditional belief operators, examining three additional axioms of increasing strength. First, introspection, which requires the agent to be unconditionally certain of her beliefs. Second, echo, according to which the unconditional beliefs implied by the condition must be held given the condition. Third, determination, which says that the conditional beliefs are the unconditional beliefs that are conditionally certain. Echo implies that conditioning on an event is the same as conditioning on the event being certain, which formalizes the standard informal interpretation of conditional probability. The game-theoretic application of our model, discussed within an example, sheds light on a number of issues in the analysis of extensive form games. Type spaces are closely related to the sphere models of counterfactual conditionals and to models of hypothetical knowledge
Understanding and Securing Your Author Rights When You Publish - Special Session with Eric Halpern of Penn Press
No full textWhen you publish, you will be required to sign some sort of publishing agreement, but what does that agreement actually say? What rights are you giving away, and what rights do you retain? Can you post your article to your website? Can you use it in the classroom? Can you send it to colleagues?
This workshop will feature Eric Halpern, Director of Penn Press, who will discuss the main clauses of a book publishing contract, and Sarah Wipperman, Scholarly Communication & Digital Repository Librarian, who will discuss journal agreements, retaining your rights, and ways you can share your work
The Neurologist Lipman Halpern—Author of the Oath of the Hebrew Physician
No full textLipman Halpern was born in 1902 into a family of Grand Rabbis who lived in Bialystok from the mid-nineteenth century. Inspired by his son’s decision to study medicine, Halpern’s father authored a comprehensive and innovative book on medicine according to Rabbinic Law. After completing his initial medical studies in Königsberg, Halpern went on to specialize in neuropsychiatry in Berlin and then in Zurich.
In 1934, Halpern immigrated to Eretz-Israel (then Palestine), where he founded and expanded the Department of Neurology at the Hadassah University Hospital in Jerusalem. Under his guidance, the department became a leader in clinical neurology, clinical and basic neurological research, and teaching. For the graduation of the first class of the Faculty of Medicine of the Hebrew University of Jerusalem in 1952, he authored the “Oath of the Hebrew Physician,” which went on to become the official oath for all new physicians graduating from Israeli faculties of medicine.
Halpern authored many clinical and research articles in English, German, French, and Hebrew. His studies on the relationship between the vestibular, cerebellar, and visual systems resulted in the description of the phenomenon of “monocular disequilibrium” and the “sensorimotor induction syndrome,” also known as “Halpern’s syndrome.” In 1953 he became the first Israel Prize laureate in Medicine. Halpern died in 1968 while serving his second term as Dean of the Faculty of Medicine at Hebrew University
Rational Inattention and a Causal Account of Program Security
No full text165 pagesThis thesis consists of two parts, representing two separate strands of research.The first part is concerned with the formal analysis of program security. We argue that security properties of computer systems can be thought of causally, and use a formal model of causality, the Halpern-Pearl (HP) model, to represent programs and capture a variety of security properties such as noninterference, robust declassification and endorsement. This provides new insights into both causality, where security-inspired scenarios put the existing theory to the test and motivate us to consider various extensions, and security, where causality lets us express security properties in intuitive terms and see what they denote in natural settings. In the second part, we introduce a theoretical model of information acquisition under resource limitations in a noisy environment. An agent must guess the truth value of a given Boolean formula φ after performing a bounded number of noisy tests of the truth values of variables in the formula. We observe that, in general, the problem of finding an optimal testingstrategy for is hard, but we suggest a useful heuristic. The techniques we use also give insight into two apparently unrelated, but well-studied problems: (1) rational inattention, that is, when it is rational to ignore pertinent information (the optimal strategy may involve hardly ever testing variables that are clearly relevant to φ), and (2) what makes a formula hard to learn/remember
Homage to N. (after Chekhov)
No full textDaniel Halpern is the author of seven collections, most recently Foreign Neon (Knopf, 1991) and Tango (Viking Penguin, 1987). He has edited numerous volumes, including The Art of the Tale: An International Anthology of Short Stories. Knopf will release his Selected Poems in April 1994. Publisher of the Ecco Press and Antaeus, he lives in Princeton, New Jersey
Understanding and Securing Your Author Rights When You Publish
No full textWhen you publish, you will be required to sign some sort of publishing agreement, but what does that agreement actually say? What rights are you giving away, and what rights do you retain? Can you post your article to your website? Can you use it in the classroom? Can you send it to colleagues?
This workshop will feature Eric Halpern, Director of Penn Press, who will discuss the main clauses of a book publishing contract, and Sarah Wipperman, Scholarly Communication & Digital Repository Librarian, who will discuss journal agreements, retaining your rights, and ways you can share your work
Ida Halpern: A Post-Colonial Portrait of a Canadian Pioneer Ethnomusicologist
No full textThe work of Ida Halpern (1910–87), one of Canada's first musicologists and a pioneer ethnomusicologist, has been largely ignored. This essay illuminates her most important contribution to the musical development of this country: the documentation of Native musics. Halpern devoted some four decades to recording and analyzing over five hundred songs of the Kwakwaka'wakw, the Nuuchahnulth, the Haida, the Nuxalk, and the Coast Salish First Nations of British Columbia—a truly remarkable achievement considering that a large part of her fieldwork was conducted during a period when it was illegal for Native cultures to be celebrated, much less preserved. The author discusses the strengths and weaknesses of her methodology as well as some factors affecting the reception of her work by academic peers and by the communities she worked with. While Halpern did not always thoroughly investigate context, she endeavoured to write heteroglossically and to invent a theory that accounted for the music of these songs
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Translation of Verran Snyder-Halpern sleep scale into Russian
No full textThis thesis offers an overview of Russian immigration and a summary of the
impact of Soviet Socialism on attitudes ofRussian society. The emigre endures
barriers to health services based on cultural and language differences and little is
known of Russian health practices. The elderly are vulnerable to health problems
because of the poor health care in the old USSR. The author identifies chronic ill
health and depression as contributing to reported sleep disturbances, leading to
exacerbation of physical and emotional illness. A search for Russian language
health assessment forms revealed none existed. The purpose of this paper is to
demonstrate a rigorous process for translating an English instrument, the V erran
Snyder-Halpern Sleep Scale, into Russian while preserving cultural and linguistic
equivalency. By adopting principles from cross-cultural psychology, the author
develops a protocol for an asymmetrical translation using content equivalence,
forward and back-translation, analysis of back-translations, and bilingual error in
meaning checks. The result was a Russian version of the Verran Snyder-Halpern
Sleep Scale that is culturally and linguistically equivalent.Digitized from a paper copy provided by the Arizona Health Sciences Library
A Note on Strong Convergence of a Modified Halpern's Iteration for Nonexpansive Mappings
No full textIn the paper by Hu in 2008, the author proved a strong convergence result for nonexpansive mappings using a modified Halpern's iteration algorithm. Unfortunately, the case limn→∞βn=1 does not guarantee the strong convergence of the sequence {xn}. In this note, we provide a counter-example to the theorem
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The Orasac Villager and the World Outside
No full textReprinted with permission of the author and publisher from A Serbian Village (New York : Columbia University Press, 1958). All rights now reside with Joel Halpern, author.The universe of the Orasac peasant centers on his household, his neighborhood, his clan, and his village. The world outside the village is of secondary importance, although he is very much aware of it and interested in it. Toward each larger and more distant sphere of influence and association, from the relation of Orasac to its surrounding village and market town, to Sumadija and Serbia, to the rest of Yugoslavia, and to the vast world beyond, his feelings become less intense
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