PPT-Lexical Semantics and Word Senses

Hongning Wang CSUVa Todays lecture Lexical semantics Meaning of words Relation between different meanings WordNet An ontology structure of word senses Similarity between words Distributional semantics. Slides adapted from Dan Jurafsky, Jim Martin and Chris Manning. Three Perspectives on Meaning. Lexical Semantics. The meanings of . individual words. Formal Semantics. (or Compositional Semantics or Sentential Semantics). Julia Hirschberg. CS 4705. Slides adapted from Kathy McKeown, Dan Jurafsky, Jim Martin and Chris Manning. Lexical Semantics. The meanings of . individual words. Formal Semantics. (or Compositional Semantics or Sentential Semantics). CSCI-GA.2590 – Lecture 7A. Ralph . Grishman. NYU. Words and Senses. Until now we have manipulated structures based on words. But if we are really interested in the meaning of sentences, we must consider the . Theory . Lexical Semantics. Tandem workshop on Optimality Theory in language and geometric approaches to language. Overview. . Overview OT & lexical semantics. Consequences of OT view on lexical semantics. Katie Welch, PhD. LING3311-001. How do we know what words mean?. When we want to know what a word means, we often turn a familiar source—the dictionary. . Why is the dictionary not a sufficient method for determining meaning? . LIN 1180 – Semantics. Lecture7. Ambiguity and vagueness. Continuation from last week. Ambiguity vs. Vagueness (I). In context, a word can seem to have several distinct senses. Some may appear more related than others.. Slides adapted from Dan Jurafsky, Jim Martin and Chris Manning. Three Perspectives on Meaning. Lexical Semantics. The meanings of . individual words. Formal Semantics. (or Compositional Semantics or Sentential Semantics). Text-to-Scene Generation. 1. Bob Coyne (. coyne@cs.columbia.edu. ). Owen . Rambow. (. rambow@ccls.columbia.edu. ). . Richard . Sproat. (. rws@xoba.com. ). Julia Hirschberg (. julia@columbia.edu. ). CSCI-GA.2590 – Lecture 7A. Ralph . Grishman. NYU. Projects. Start thinking about possibilities. probabilistic models of additional stages. sentence splitter. coreference. dependency parsing. prepositional phrase attachment. SEMANTICS. YANBU UNIVERSITY COLLEGE. APPLIED LINGUISTICS DEPARTMENT. FIRST . SEMESTER-131. Prepared by : Ms. . Sahar. . Deknash. Linguistics and Semantics. Semantics . is defined as one branch of theoretical linguistics ( pure linguistics) that studies the linguistic meaning ( lexical meaning) of words, phrases and sentences. When we study the meaning of words, we usually concentrate on the denotative ( literal ) meaning more than the connotative meaning. Slides adapted from Dan Jurafsky, Jim Martin and Chris Manning. Next week. Finish semantics. Begin machine learning for NLP. Review for midterm. Midterm. October 27. th. Will cover everything through semantics. Dan Jurafsky. Stanford University. Introduction and Course Overview. What is Computational Lexical Semantics. Any computational process involving word meaning!. Computing . Word Similarity . Distributional (Vector) Models of . يراظؤط نايمرةط يؤ’ناز نايمر‘ ةعماp ةل� 386 | acadj@garmian.edu.krd Vol.4 , No.4 (December, 2017 ) http://jgu.garmian.edu.krd htt ps: 5.3.3 Polysemy vs. homonymy. In lexical ambiguity there are traditionally two types : . Polysemy. . : one word with multiple senses ​.. ​. Homonymy. : different words that happen to sound the same..