earley an efficient contextfree parsing algorithm
Tài liệu Báo cáo khoa học: "AN EXTENDED LR PARSING ALGORITHM FOR GRAMMARS USING FEATURE-BASED SYNTACTIC CATEGORIES " pot
... Aho and Ullman (1987) and Aho and Johnson (1974), and more formal definitions and notations of a feature- based grammar formalism from Pollard and Sag (1987) and Shieber (1986). 2 The LR Parsing ... not require any preliminary instantiation of categories or a search for them, and a reduce action which pe,forms instanliation tit)ring parsing. Some details of the LR parsing algorithm are ... AN EXTENDED LR PARSING ALGORITHM FOR GRAMMARS USING FEATURE-BASED SYNTACTIC CATEGORIES Tsuneko Nakazawa Beckman Institute for Advanced Science and Technology and Linguistics...
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Báo cáo khoa học: "AN OPTIMAL TABULAR PARSING ALGORITHM" pdf
... recursion and is generally less efficient. Nondeterministic LC parsing is the foundation of a very efficient parsing algorithm [7], related to Tomita's algorithm and Earley& apos;s algorithm. ... common-prefix (CP) parsing, which are al- gorithms capable of simultaneous processing of all com- mon prefixes. ELR and CP parsing are the foundation of tabular parsing algorithms and a parallel parsing ... with tabular LR parsing. As we will explain, CP and ELR parsing are more deterministic than most other parsing algorithms for many grammars, but their tabular realizations can never compute...
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Báo cáo khoa học: "An Earley Parsing Algorithm for Range Concatenation Grammars" potx
... Parmentier, and Johannes Dellert. 2008. De-veloping an MCTAG for German with an RCG-based parser. In Proceedings of LREC-2008, Mar-rakech, Morocco.Wolfgang Maier and Anders Søgaard. 2008. Tree-banks ... adjacentvariables can be concatenated), it is called an in-stantiated predicate and the result of applying φ toall predicates in c, if defined, is called an instanti-ated clause.We also introduce range ... Clergerie. 2001. Guided parsing of Range Concatenation Languages. In Pro-ceedings of ACL, pages 42–49.Tilman Becker, Aravind K. Joshi, and Owen Rambow.1991. Long-distance scrambling and tree adjoininggrammars....
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Tài liệu Báo cáo khoa học: "An Earley-style Predictive Chart Parsing Method for Lambek Grammars" ppt
... produced in the translation become instan- tiated to some string constant during an analysis, fixing the position at which an additional subordering becomes 'attached to' another (sub)ordering. ... minal Yield, but rather the instantiation of span labels that it induces (for string matters), and its structure (for semantic matters). and (i-j) a span label. For a formula (m, T, t) ... the span (i-j) will be instantiated, so we need only unify the right index of the two spans the left indices can simply be checked for atomic identity. This observation is important to efficient...
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Tài liệu Báo cáo khoa học: "An Efficient Generation Algorithm for Lexicalist MT" ppt
... Johnson, Andrew Kay and Antonio Sanfilippo at SLE, and our anonymous reviewers for useful feedback and discussions on the re- search reported here and on earlier drafts of this paper. of instantiated ... as translation coverage is extended and new lan- guage pairs are added. 5 Conclusion We have presented a polynomial complexity gener- ation algorithm which can form part of any Shake- and-Bake ... great man translated as un homme grand). The problem is justifying the main/subordinate distinction in every language that we might wish to translate into German. This distinction can be...
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Báo cáo y học: " Derivation and preliminary validation of an administrative claims-based algorithm for the effectiveness of medications for rheumatoid arthritis"
... made substantial contributions to conception and design, and to the analysis and interpretation of the data. TRM and GWC handled acquisition of data. All authors contributed to the manuscript ... 41:1845-1850. 26. van Gestel AM, Prevoo ML, van 't Hof MA, van Rijswijk MH, van de Putte LB, van Riel PL: Development and validation of the European League Against Rheumatism response criteria ... addressing important intellectual content. All authors read and approved the final manuscript for publication. Acknowledgements We would like to thank Mike Connor and Sheryl Berryman at the Birmingham...
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Tài liệu Báo cáo khoa học: "An Improved Redundancy Elimination Algorithm for Underspecified Representations" pdf
... For instance, proper namesand pronouns (which the ERG analyses as scope-bearers, although they can be reduced to constantswithout scope) can be permuted with anything. In-definites and definites ... Toutanova, S. Shieber, C. Manning,D. Flickinger, and T. Brants. 2002. The LinGO Red-woods treebank: Motivation and preliminary applications.In Proceedings of COLING’02.K. van Deemter and ... Linguistics An Improved Redundancy Elimination Algorithm for Underspecified RepresentationsAlexander Koller and Stefan ThaterDept. of Computational LinguisticsUniversität des Saarlandes, Saarbrücken,...
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Tài liệu Báo cáo khoa học: "An Efficient Parallel Substrate for Typed Feature Structures on Shared Memory Parallel Machines" docx
... Cambridge, England. K. Clark and S. Gregory. 1986. Parlog: Parallel programming in logic. Journal of the A CM Transaction on Programming Languages and Syste ms, 8 ( 1):1-49. Ralph Grishman and Mehesh ... heap can be read by any CSAs, each CSA can read the re- sult performed by any other CSAs. However, the portion of a shared heap that the CSA can write to is limited. Any other CSA cannot ... Applied Natural Language Processing, pages 71-76. Association for Computational Linguistics. T. Kasami. 1965. An efficient recognition and syntax algorithm for context-free languages. Technical...
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Tài liệu Báo cáo khoa học: "Parsing Algorithms and Metrics" doc
... true of the Labelled Tree Algorithm and stochastic versions of Earley& apos;s Algorithm (Stolcke, 1993), and variations such as those used in Picky parsing (Magerman and Weir, 1992). Even in ... Matching parsing algorithms to evaluation crite- ria is a powerful technique that can be used to im- prove performance. In particular, the Labelled Re- call Algorithm can improve performance versus ... ATIS data and the cleaned-up version is avail- able from ftp://ftp.das.harvard.edu/pub/goodman/atis- ed/ ti_tb.par-ed and ti_tb.pos-ed. The number of changes made was small, less than 0.2% Criteria...
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Tài liệu Báo cáo khoa học: "Online Learning of Approximate Dependency Parsing Algorithms" potx
... solvable. 88root Han spejder efter og ser elefanterneHe looks for and sees elephantsFigure 5: An example dependency tree fromthe Danish Dependency Treebank (from Kromann(2003)).word to ... Discontinuous Grammar and annotateda large set of Danish sentences using this formal-ism to create the Danish Dependency Treebank(Kromann, 2003). The formalism allows for a84DanishPrecision Recall ... state-of-the-art accuracyfor English and the best accuracy we know of forCzech and Danish.2 Maximum Spanning Tree Parsing Dependency-tree parsing as the search for themaximum spanning tree (MST) in a graph...
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Bond Markets in Serbia: regulatory challenges for an efficient market potx
... on Banksand Other Financial Organizations; the Law on Bank Rehabilitation, Bankruptcy andLiquidation; and the Law on the Agency for Deposit Insurance and BankRehabilitation, Bankruptcy and ... Valjevska banka, JIK banka,Pozarevacka banka, Sabacka banka, Beogradska banka, Beobanka, Jugobanka, andInvestbanka. Later, two more banks were added to this list - Dafiment banka andBanka privatne ... securities and other financial instruments and of these entities, and shall con-duct the clearing and balancing of accounts of securities and balancing of accountsof financial assets and liabilities...
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Flash: An Efficient and Portable Web Server pot
... Y. Hu, A. Nanda, and Q. Yang. Measurement, anal-ysis and performance improvement of the Apacheweb server. In Proceedings of the 18th IEEE In-ternational Performance, Computing and Commu-nications ... testbed configuration. Special thanks to ZeusTechnology for use of their server software and DamianReeves for feedback and technical assistance with it.Thanks to Jef Poskanzer for the thttpd web server, ... versions.The choice of an operating system has a signifi-cant impact on Web server performance. Perfor-The number of concurrent connections can have asignificant impact on server performance [4]. Our...
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Báo cáo khoa học: "CONSTRAINT PROJECTION: AN EFFICIENT TREATMENT DISJUNCTIVE FEATURE DESCRIPTIONS " ppt
... play an impor- tant role in synthesizing linguistic analyses such as parsing and semantic analysis, and linguistic and non-linguistic inferences. Acknowledgments I would like to thank Kiyoshi ... returned. Thus CP can he applied to CYK parsing, but needless to say, CP can be applied to parsing al- gorithms other than CYK, such as active chart parsing. 5 Implementation Both CU and CP have ... and indicates its disadvan- tages. Section 4 explains the basic ideas and the algorithm of CP. Section 5 presents some results of implementation and shows that adopting CP makes parsing efficient. ...
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Báo cáo khoa học: "The Treegram Index An Efficient Technique for Retrieval in Linguistic Treebanks" docx
... Proceedings of EACL '99 number of candidateswill be much smaller than the number of trees in DB. 2 Efficient query evaluation The treegram-index retrieval method ... query treegram, VENONA expands the structure number to a set of index treegram structures and re- moves those labels that consist of a vari- able: Variables and the constraints that they ... until the candidate set has the desired size if necessary, falling back on some of the treegrams put aside. (6) Finally, the tree matcher selects the an- swer trees from these candidates....
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Báo cáo khoa học: "Prediction in Chart Parsing Algorithms for Categorial Unification Grammar" pdf
... instance, containing only deter- miners, adjectives, nouns, and transitive and intransi- tive verbs, will give rise to more than 60 instantiated rules if precompiled without restriction, whereas ... almost, as efficient as TD/I, eventhough it works with a generic grammar, and thus produces (significantly) more chart-items. Once we replace the generic grammar by an instantiated grammar, and add ... set, and thus can be used to compile arbitrary UGs. Such a compilation step will give rise to a substantially more instantiated rule set in all cases 3Note that for classical CG, an algorithm...
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- an earlytype parsing algorithm for tree adjoining grammars
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