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Parser

Apple Pie Parser

Author/Org: Department of Computer Science, University of New York, U.S.
Purpose: "The parser is a bottom-up probabilistic chart parser which finds the parse tree with the best score by best-first search algorithm."
Access: free download for research purposes via FTP
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ENGCG Constraint Grammar Parser of English

Author/Org: Lingsoft
Purpose: "ENGCG, the Constraint Grammar Parser of English, performs morphosyntactic analysis (tagging) of running English text. The parser employs a morphological ("part-of-speech") disambiguator that makes 93-97% of all running-text words in Written Standard English unambiguous while 99.7% of all words retain the correct analysis."
Access: free access to the online demo version (100 tries per day)
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Link Grammar

Author/Org: Davy Temperley, Daniel Sleator, John Lafferty
Purpose: "The Link Grammar Parser is a syntactic parser of English, based on link grammar, an original theory of English syntax. Given a sentence, the system assigns to it a syntactic structure, which consists of a set of labeled links connecting pairs of words. As of August 2000, we are releasing version 4.0 of the parser"
Access:
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LT CHUNK

Author/Org: LTG - Language Technology Group, Edinburgh, UK
Purpose: a surface parser which identifies noun groups and verb groups
Access: an interactive demo of LT Chunk is available here
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Machinese Phrase Tagger

Author/Org: Connexor
Purpose: Machinese Phrase Tagger is a fast, light parser that enriches the text with base forms and tags for part of speech, morphology and basic meaningful entities (e.g. modifier-head sequences), i.e. it produces word class and shallow syntactic tags.
Access: an interactive online demo is available here
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Survey Parser

Author/Org: SEU
Purpose: "The Development of an Automatic Parsing System Using the ICE Corpus as Linguistic Knowledge Base"
Access: status of the project is unknown
Notes:

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