PPT-Parsec Parsing

Author : lindy-dunigan | Published Date : 2016-06-13

Parsec Parsec one of the standard libraries for building libraries It is a combinator parser A parser parses a sequence of elements to create a structured value

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Parsec Parsing: Transcript

Parsec Parsec one of the standard libraries for building libraries It is a combinator parser A parser parses a sequence of elements to create a structured value It is a monadic computation so it may support many nonstandard . Ling 571. Deep Processing Techniques for NLP. January 12, 2011. Roadmap . Motivation: . Parsing (In) efficiency. Dynamic Programming. Cocke. -. Kasami. -Younger Parsing Algorithm . Chomsky Normal Form. 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. This triangle should be 4,500 times longer!. d . (distance to star) . is in parsec units . 1 parsec = 206,265 . x. 1 A.U.. ab. . (distance Earth to Sun) . has to be in Astronomical Units (A.U.). p. : Parallel Runtime Scheduling and Execution Controller. Jack . Dongarra. , George . Bosilca. , . Aurelien. . Bouteiller. , Anthony . Danalis. , Mathieu . Faverge. , . Thomas Herault. Also thanks to: . Trifecta. Edward . Kmett. Iteratees. , Parsec, and . Monoids. Overview. The Problem. Deriving . Iteratees. á la Oleg. Buffered . Iteratees. Layering Parsec Over . Iteratees. Local Context-Sensitivity. Tutorial Contents Part 1: Understanding PARSEC OverviewHistory, Impact, What’s NewWorkloadsResearch on PARSEC Part Working with PARSEC The parsecmgmttoolBuilding & Running workloadsConfiguration Suite PARSEC 3.0 ARCO Group seminar 27th January of 2012 Mart 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. 12345678 12345678 LinearBodytrack (PARSEC 1.0)Bodytrack (PARSEC 2.0)Number of CoresSpeedup Figure1:ComparisonofthespeedupsofthebodytrackworkloadsofPARSEC1.0and2.0.Theimprovedparalleliza-tionachieves30 1. Some slides . adapted from Julia Hirschberg and Dan . Jurafsky. To view past videos:. http://. globe.cvn.columbia.edu:8080/oncampus.php?c=133ae14752e27fde909fdbd64c06b337. Usually available only for 1 week. Right now, available for all previous lectures. 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. 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 Night sky rule of thumb. :. one finger width = 2 deg. . one hand width = 10 deg.. Units for Time and Distance. Kilometer (km). = .621 miles. Light-year (. lt-yr. ). = The distance light travels in one year in a vacuum. .

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