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Yehoshua Bar-Hillel

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Yehoshua Bar-Hillel
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| birth_place = Vienna197525 09|08}}| death_place = Jerusalem| death_cause = | resting_place = | resting_place_coordinates = | other_names = | residence = | citizenship = | nationality = | fields = philosophy, mathematics, linguistics| workplaces = Hebrew University, MIT| patrons = | education = | alma_mater = | thesis_title = Theory of syntactic categoriesBar-Hillel,Yehoshua, Encyclopedia of Linguistics, Philip Strazny (ed), New York, Fitzroy Dearborn, 2005, vol.1, pp. 124-126| thesis_url = | thesis_year = 1945| doctoral_advisor = | academic_advisors = | doctoral_students = | notable_students = | known_for = Bar-Hillel lemma| influences = | influenced = | awards = | author_abbrev_bot = | author_abbrev_zoo = | spouse = | partner = Maya Bar-Hillel>Maya, Mira| signature = | signature_alt = | website = | footnotes = }}Yehoshua Bar-Hillel (; 8 September 1915, Vienna – 25 September 1975, Jerusalem) was an Israeli philosopher, mathematician, and linguist. He is perhaps best known for his pioneering work in machine translation and formal linguistics.

Biography

Born Oscar Westreich in Vienna, Austria-Hungary, he was raised in Berlin. In 1933 he emigrated to Palestine with the Bnei Akiva youth movement, and briefly joined the kibbutz Tirat Zvi before settling in Jerusalem and marrying Shulamith.During World War II, he served in the Jewish Brigade of the British Army. He fought with the Haganah during the Israeli War of Independence, losing an eye.Bar-Hillel received his PhD in Philosophy from the Hebrew University where he also studied mathematics under Abraham Fraenkel, with whom he eventually coauthored Foundations of Set Theory (1958, 1973).Bar-Hillel was a major disciple of Rudolf Carnap, whose Logical Syntax of Language much influenced him. He began a correspondence with Carnap in the 1940s, which led to a 1950 postdoc under Carnap at the University of Chicago, and to his collaborating on Carnap's 1952 An Outline of the Theory of Semantic Information.Bar-Hillel then took up a position at MIT, where he was the first academic to work full-time in the field of Machine Translation. Bar-Hillel organised the first International Conference on Machine Translation in 1952. Later he expressed doubts that general-purpose fully automatic high-quality machine translation would ever be feasible.{{ref|fahqut1}}{{ref|fahqut2}} He was also a pioneer in the field of information retrieval.In 1953, Bar-Hillel joined the philosophy department at the Hebrew University, where he taught until his death at age 60. His teachings and writings strongly influenced an entire generation of Israeli philosophers and linguists, including Asa Kasher and Avishai Margalit. In 1953, he founded a pioneering algebraic-computational linguistic group, and in 1961 he contributed to the proof of the pumping lemma for context-free languages (sometimes called the Bar-Hillel lemma). Bar-Hillel helped found the Hebrew University's department of Philosophy of Science. From 1966 to 1969 Bar-Hillel presided over the Division for Logic, Methodology and Philosophy of Science of theInternational Union of History and Philosophy of Science.File:Prof. Daniel Kahneman and Prof. Maya Bar Hillel 2.jpg|thumb|150px|Maya Bar Hillel and Daniel KahnemanDaniel KahnemanBar-Hillel's daughter Maya Bar-Hillel is a cognitive psychologist at the Hebrew University, known for her collaborations with Amos Tversky and for her role in critiquing Bible code study. His other daughter, Mira Bar-Hillel, is a freelance journalist who has worked for the London Evening Standard. His granddaughter, Gili Bar-Hillel, is the Hebrew translator of the Harry Potter series of books.

Related terms

Notes

  1. {{note|fahqut1}}Melby, Alan. The Possibility of Language (Amsterdam:Benjamins, 1995, 27-41)
  2. {{note|faqhut2}}Appendix III of 'The present status of automatic translation of languages', Advances in Computers, vol.1 (1960), p.158-163. Reprinted in Y.Bar-Hillel: Language and information (Reading, Mass.: Addison-Wesley, 1964), p.174-179.

Select bibliography

  • JOURNAL,weblink Yehoshua Bar-Hillel, Some Linguistic Problems Connected With Machine Translation, Philosophy of Science, 20, 217—225, 1953,
  • JOURNAL, Yehoshua Bar-Hillel, Indexical Expressions, Mind, 63, 251, 359—379, Jul 1954,
  • REPORT,weblink Yehoshua Bar-Hillel, Four lectures on Algebraic Linguistics and Machine Translation, Hebrew University, Jerusalem, ASTIA Report, 400604, Jan 1963,
  • BOOK, Yehoshua Bar-Hillel, Language and Information: Selected Essays on Their Theory and Application, Reading, MA, Addison-Wesley, 1964,
  • BOOK,weblink Yehoshua Bar-Hillel, Logic, Methodology and Philosophy of Science: Proceedings of the 1964 International Congress, Amsterdam, North-Holland, 1965,
  • BOOK, Yehoshua Bar-Hillel, Aspects of Language: Essays in Philosophy of Language, Linguistic Philosophy, and Methodology of Linguistics, Amsterdam, North-Holland, 1970,
  • BOOK, 9780720422559, Yehoshua Bar-Hillel, Mathematical Logic and Foundations of Set Theory: Colloquium Proceedings, Jerusalem, 1968, Amsterdam, North-Holland Pub. Co., Study in Logic and Foundation of Mathematics, Aug 1970,
  • BOOK,weblink 978-90-277-0599-0, Yehoshua Bar-Hillel, Pragmatics of Natural Languages: Proceedings of the 1970 International Working Symposium, Dordrecht, D. Reidel Publishing Co., Synthese Library, 41, 1971,
  • BOOK, 9780080887050, Abraham Halevi Fraenkel, Yehoshua Bar-Hillel, Azriel Levy, Abraham Halevi Fraenkel, Yehoshua Bar-Hillel, Azriel Levy, Foundations of Set Theory, Elsevier, Studies in Logic and the Foundations of Mathematics, 67, 2nd, 1973,

References

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External links

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