PPT-Data-Driven Dependency Parsing

Author : myesha-ticknor | Published Date : 2019-11-22

DataDriven Dependency Parsing Kenji Sagae CSCI544 Background Natural Language Parsing Syntactic analysis String to tree structure He likes fish PARSER S NP VP NP

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Data-Driven Dependency Parsing: Transcript

DataDriven Dependency Parsing Kenji Sagae CSCI544 Background Natural Language Parsing Syntactic analysis String to tree structure He likes fish PARSER S NP VP NP V N Prn He likes fish. Test in Loops. By . Amala. Gandhi. Data Dependence. Three types of data dependence:. Flow (True) dependence : read-after-write. . int. a, b, c;. a . = c * 10;. b . = 2 * a + c. ;. Anti Dependency: write-after-read. In-domain vs out-domain. Annotated data in. Domain A. A. Parser. Training. Parsing texts in . Domain A. Parsing texts in Domain B . In-domain. Out-domain. Motivation. F. ew or no labeled resources exist for parsing text of the target domain.. for Improved Pipeline Models. Razvan . C. Bunescu. Electrical Engineering and Computer Science. Ohio University. Athens, OH. bunescu@ohio.edu. EMNLP, October 2008. Introduction. 1. Syntactic Parsing. Keith . HallRyan. . McDonaldJason. Katz-. BrownMichael. . Ringgaard. Evaluation. Intrinsic. How well does system replicate gold annotations?. Precision/recall/F1, accuracy, BLEU, ROUGE, etc.. Extrinsic. Top-down vs. bottom-up parsing. Top-down . vs. bottom-up . parsing. Ex. Ex. Ex. Ex. +. Nat. *. Nat. Nat. Ex. Ex. . . . Nat. | . (. Ex. ). | . Ex. . +. . Ex. | . Ex. . *. . Ex. Matched input string. Niranjan Balasubramanian. March 24. th. 2016. Credits: . Many slides from:. Michael Collins, . Mausam. , Chris Manning, . COLNG 2014 Dependency Parsing Tutorial, . Ryan McDonald, . . Joakim. . Nivre. Feature-based Parsing. Ling571. Deep Processing Techniques for NLP. February 1, . 2017. Roadmap. Dependency parsing. Transition. -based parsing. Configurations and Oracles. Feature. -based parsing. Motivation. Top-down versus Bottom-up Parsing. Top down:. Recursive descent parsing. LL(k) parsing. Top to down and leftmost derivation . Expanding from starting symbol (top) to gradually derive the input string. CS 4705. Julia Hirschberg. 1. Some slides adapted from Kathy McKeown and Dan Jurafsky. Syntactic Parsing. Declarative . formalisms like CFGs, FSAs define the . legal strings of a language. -- but only tell you whether a given string is legal in a particular language. ,. SEMANTIC ROLE . LABELING, SEMANTIC PARSING. Heng. . Ji. jih@rpi.edu. September 17, . 2014. Acknowledgement: . FrameNet. slides from Charles . Fillmore;. Semantic Parsing Slides from . Rohit. Kate and Yuk . Semantic Parsing. Converting natural language to a logical form. e.g., executable code for a specific application. Example:. Airline reservations. Geographical query systems. Stages of Semantic . Parsing. Parsing Giuseppe Attardi Dipartimento di Informatica Università di Pisa Università di Pisa Question Answering at TREC Consists of answering a set of 500 fact-based questions, e.g. “When was Mozart born Parsing Giuseppe Attardi Dipartimento di Informatica Università di Pisa Università di Pisa Question Answering at TREC Consists of answering a set of 500 fact-based questions, e.g. “When was Mozart born Courtin Damien Genthial - IMAG CAMPUS BP 53 38040 GRENOBLE CEDEX 9 476 51 49 15 E-Mail JacquesCourtinimagfr DamienGenthialimagfr Abstract After a short recall of our view of dependency grammars we pre

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