generalised phrase structure grammar
Báo cáo khoa học: "FINITE-STATE APPROXIMATION OF PHRASE STRUCTURE GRAMMARS" pdf
... approxi- mations for context-free grammars and equivalent augmented phrase- structure grammar formalisms. The approximation is exact for certain context- free grammars generating regular languages, ... relevant syntac- tic and semantic regularities. Augmented phrase structure grammar (APSG) formalisms, such as unification-based grammars (Shieber, 1985a), can express many of those regularities, ... the observation that many interest- ing phrase- structure grammars have substantial parts that accept regular languages. That does not mean that the grammar rules are in the stan- dard forms...
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Báo cáo khoa học: "PROCESSING ENGLISH WITH A GENERALIZED PHRASE STRUCTURE GRAMMAR" pdf
... 1981. "Unbounded Dependencies and Coordinate Structure. " Linguistic Inquiry 12, 155-184. Gazdar, Gerald. 1982. " ;Phrase Structure Grammar. " In Pauline Jacobson and Geoffrey ... Hewlett-Packard's Computer Research Center. The system's main components are: a Generalized Phrase Structure Grammar (GPSG); a top-down parser; a logic transducer that outputs a first-order logical ... research had three goals: (1) demonstrating the computational tractability of Generalized Phrase Structure Grammar (GPSG), (2) implementing a GPSG system covering a large fragment of English, and...
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Báo cáo khoa học: "FOR A N EFFICIENT CONTEXT-FREE PARSER AUGMENTED PHRASE-STRUCTURE GRAMMARS" potx
... which run different types of grammars. Among them, the most successful are the CF grammars, the augmented phrase- structure grammars (APSGs), and the semantic grammars. All of them have different ... (1976), and its major improvements are described. It has been designed to run Augmented Phrase- Structure Grammars (APSG) and performs semantic interpretation in parallel with syntactic analysis. ... VoI.I: Syntax. Addison-Wesley. 202 AN EFFICIENT CONTEXT-FREE PARSER FOR AUGMENTED PHRASE- STRUCTURE GRAMMARS Massimo Marino*, Antonella Spiezio, Giacomo Ferrari*, Irina Prodanof+ *Linguistics...
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Structure - Grammar and Style
... learn more about gerunds later in this chapter.)– STRUCTURE: GRAMMAR AND STYLE–59The TOEFL Exam Structure Section: What to ExpectSection II: Structure does not require you to actually write ... to $100.– STRUCTURE: GRAMMAR AND STYLE–654. A lack in folic acid, especially in early pregnancy, can lead to serious birth defects.AB C Da. Ab. Bc. Cd. DAnswers: 3-b, 4-a. Grammar and ... ostrich is the fastest two-legged animal on Earth.Parts of Speech– STRUCTURE: GRAMMAR AND STYLE–58Putting It All Together: A Structure Practice QuizAnswer the questions below. You will find...
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Tài liệu Báo cáo khoa học: "Robust Conversion of CCG Derivations to Phrase Structure Trees" pdf
... 2012.c2012 Association for Computational LinguisticsRobust Conversion of CCG Derivations to Phrase Structure TreesJonathan K. Kummerfeld†Dan Klein†James R. Curran‡†Computer Science Division‡e-lab, ... james@it.usyd.edu.auAbstractWe propose an improved, bottom-up methodfor converting CCG derivations into PTB-style phrase structure trees. In contrast with pastwork (Clark and Curran, 2009), which usedsimple transductions ... inconsistencies.Clark and Curran (2009) developed a CCG to PTBconversion that treats the CCG derivation as a phrase structure tree and applies hand-crafted rules to ev-ery pair of categories that combine in...
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Tài liệu Báo cáo khoa học: "Optimizing Typed Feature Structure Grammar Parsing through Non-Statistical Indexing" doc
... paper introduces an indexing method based onstatic analysis of grammar rules and type signaturesfor typed feature structure grammars (TFSGs). Thestatic analysis tries to predict at compile-time ... data structures istherefore required. Indexing by static analysis of grammar rules combined with statistical methodsalso can provide a higher aggregate benefit.The current static analysis of grammar ... information. Techni-cal Report 140, SFB 340, T¨ubingen.C. Pollard and I. Sag. 1994. Head-driven Phrase Structure Grammar. The University of ChicagoPress.I.V. Ramakrishnan, R. Sekar, and A. Voronkov.2001....
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Báo cáo khoa học: "PHRASE STRUCTURE TREES BEAR MORE FRUIT THAN YOU WOULD HAVE THOUGHT" ppt
... that it might be possible to "infer" a phrase s~ruc'~r,e ~ L,-,, jus~ the grouping s~ruc~ure of ~he input (i.e., j us~ phrase boundaries). Pur~her, the set of descrip~iuns ... of ~z~nsformations," ki~ic Analysis, Vol. 2, 1976. [2] Gezdar, .G.J.M., " ;Phrase s-~,%~-%n0z~ grammar, " to appear zn The Nal-ure of S},nr.actic Representation, (eds. P. Jacobscn...
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Grammar And Usage For Better Writing - Problems with Sentence Structure
... a prepositional phrase as a complete sentence. Apreposition relates the noun or pronoun following it to some other part of the sentence(see Lesson 14 in Part One, page 94). A phrase is a group ... takes an object, car,like a verb.)PROBLEMS WITH SENTENCE STRUCTURE 161150 COMMON USAGE ERRORSLesson 20Problems withSentence Structure There are three basic kinds of sentences: simple, ... directions say.10. She listened to the CD player, she had earphones on.PROBLEMS WITH SENTENCE STRUCTURE 1678. Lying down in the wet grass.9. Noticing a blind person on the corner of a busy...
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Tài liệu Báo cáo khoa học: "Understanding the Semantic Structure of Noun Phrase Queries" pptx
... focusof previous works, but also understandingtheir semantic structure. In this work, weformally define the semantic structure ofnoun phrase queries as comprised of intentheads and intent modifiers. ... (again for Movie).3 Query Semantic Structure Unlike database query languages such as SQL,web queries are usually formulated as sequencesof words without explicit structures. This makesweb queries ... automatically makes such decisions,we first need to understand what constitute the se-mantic structure of a noun phrase query.3.1 DefinitionWe let C denote a set of query intent classes thatrepresent...
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Tài liệu Báo cáo khoa học: "Using adaptor grammars to identify synergies in the unsupervised acquisition of linguistic structure" docx
... of adaptorgrammars, since the grammar can learn the possibleonset and coda clusters, rather than requiring themto be stipulated in the grammar. In the unigram syllable adaptor grammar shownin ... an adaptor grammar that models col-locations and syllable structure performs word seg-mentation more accurately than an adaptor grammar that models either collocations or syllable structure alone. ... Theunigram morphology grammar tends to misanalyseeven longer collocations as words than the unigramword grammar does. Inspecting the parses showsthat rather than capturing morphological structure, the...
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Tài liệu Báo cáo khoa học: "A structure-sharing parser for lexicalized grammars" pptx
... lexicalized grammars many of the elementary structures have substructures in common. This means that in conventional pars- ing algorithms some of the computation associ- ated with different structures ... a precompilation tech- nique for such grammars which allows some of this computation to be shared. In our approach the elementary structures of the grammar are transformed into finite state ... elementary structures, merging and minimising them, and string recog- nition and parse recovery with the resulting grammar. 1 Introduction It is well-known that fully lexicalised grammar formalisms...
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Tài liệu Báo cáo khoa học: "A CONNECTIONIST PARSER FOR STRUCTURE UNIFICATION GRAMMAR" docx
... Combinatory Categorial Grammar, Lexi- cal Functional Grammar, and Head-driven Phrase Structure Grammar. An SUG grammar is a set of partial descrip- tions of phrase structure trees. Each SUG ... about the phrase structure of a sentence until this structure is com- pletely described. This information is specified in partial descriptions of phrase structure trees. An SUG grammar is ... overview of Structure Unification Grammar, then present the parser design, and finally a sketch of its implementation. STRUCTURE UNIFICATION GRAMMAR Structure Unification Grammar is a formaliza-...
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