Báo cáo khoa học: "Higher-Order Constituent Parsing and Parser Combination" potx

... for Computational Linguistics Higher-Order Constituent Parsing and Parser Combination ∗ Xiao Chen and Chunyu Kit Department of Chinese, Translation and Linguistics City University of Hong Kong Tat ... factor. This parser is also combined with the parser of Charniak and Johnson (2005) 2 and the Stanford. parser 3 The best combination results in Table 3 are achieved with k...

Ngày tải lên: 23/03/2014, 14:20

... of UD (Unification Device) which includes the parser and facilities such as procedural abswactions and extended data types (lists and trees) and Estival et al. (1989) for a description of ... classes of parsable analyses. 1. Introduction Parsing and generation me both concerned with the relation between texts and representations, and in so far as a grammar defines thi...

Ngày tải lên: 24/03/2014, 02:20

... be handled by pretending they are a form of prepos=t=onal phrase The regular and predictable relattonsn~p between s~mple statements. ¢~uestions and relalwe clauses and between act=ve and ... as =t Currently exfsts and descr,Oes our detaded des=gn for extending Plume to handle passives rela|~ve clauses, and =nterrogatlves ~n a general manner 1 The Plume Parser Recent wo...

Ngày tải lên: 31/03/2014, 17:20

... based upon an “immediate-head” parser — our name for a parser that conditions all events below a constituent c upon the head of c. Whileallofthemost accurate statistical parsers are of the immediate-head ... also to Fred Jelinek and Ciprian Chelba for the use of their data and for detailed com- ments on earlier drafts of this paper. parsers are what we will call immediate-head parse...

Ngày tải lên: 31/03/2014, 04:20

... proba- bilities, and is fixed to the best value by consider- ing development data (different from the training data) 1 . Reranking Candidate 1 Candidate 2 Candidate 3 Candidate 4 : Case element : Verb Candidate Candidate Figure ... data. The best parse which uses this data set is (Kudo and Matsumoto, 2005), and their parsing accuracy is 91.37%. The features and the parsing method u...

Ngày tải lên: 20/02/2014, 12:20

... Adjectives and Nouns (which should agree on Gender and Number and definiteness), and between Subjects and Verbs (which should agree on Gender and Number). 3 PCFG-LA Grammar Estimation Klein and Manning ... 704–709, Portland, Oregon, June 19-24, 2011. c 2011 Association for Computational Linguistics Joint Hebrew Segmentation and Parsing using a PCFG-LA Lattice Parser Yoav G...

Ngày tải lên: 17/03/2014, 00:20

... natural language parsing methods, including ATN, LR parsing, categodal grammar and principle- based parsing. The relationship between the graph- structured stack and a chart in chart parsing is ... same work and can run in polynomial time. This is true for all of the parsing systems mentioned above; ATN, shift-reduce parsing, principle-based parsing, and perhaps any oth...

Ngày tải lên: 17/03/2014, 20:20

... segmentation is assumed to be known (Sec. 4), and in a more re- alistic one in which parsing and segmentation are handled jointly by the parser (Goldberg and Tsar- faty, 2008) (Sec. 5). External lexical ... which the parser performs both segmentation and POS tagging, and the results show some in- teresting trends. Moreover, some recent studies on parsing Hebrew, as well as a...

Ngày tải lên: 17/03/2014, 22:20

... Judith Klavans and Beth Levin for many discussions concerning the Dictionary Entry Parser system in general, and this paper in particular. Any re- maining errors are ours, and ours only. REFERENCES ... Process- ing and Prolog", m A Walker, MMcCord, J Sowa and W Wilson (Eds) Knowledge Systems and ' Prolog, Addison-Wesley, Waltham, Massachusetts, 291 - 402. Naka...

Ngày tải lên: 24/03/2014, 02:20

... 3: WSJ Sentences. In table 4, we show the standard deviation measured from three different randomly chosen training sets of each sample size and randomly chosen test sets of 500 sentences each, ... Marcus, Rich Pito, Giorgio Satta, Yves Schabes and Tom Veatch. This work was supported by DARPA and AFOSR jointly under grant No. AFOSR-90-0066, and by ARO grant No. DAAL 03-89-C003...

Ngày tải lên: 31/03/2014, 06:20