Báo cáo khoa học: "A Beam-Search Extraction Algorithm for Comparable Data" pptx

Báo cáo khoa học: "A Polynomial-Time Algorithm for Statistical Machine Translation" pot

... that exploits bracketing information (Wu and Ng, 1995). If any brackets for the Chinese sentence can be supplied as additional input information, produced for example by a preprocessing ... formalisms were originally developed for the purpose of parallel corpus annotation, with applications for bracketing, alignment, and segmen- tation. This paper finds they are also useful for ... exist for incorporating constraints fed in from other preprocessing modules, and some of these modules do employ linguistic grammars. For instance, we previ- ously reported a method for improving...

Tài liệu Báo cáo khoa học: "A structure-sharing parser for lexicalized grammars" pptx

... precompiling additional information, parsing can be broken down into recognition followed by parse recovery; • providing a formal treatment of the algorithms for transforming and minimising ... are transformed into finite state automata which can be merged and minimised using standard algorithms, and then parsed using an automaton- based parser. We present algorithms for con- structing ... basic approach, and describe informally our improve- ments to the previous account. We then give a formal account of the optimisation process and a possible parsing algorithm that makes use of...

Báo cáo khoa học: " A Noisy-Channel Model for Document Compression" pptx

... achieves an f-score of for EDUidentiﬁcation, for identifying hierarchical spans, for nuclearity identiﬁcation and for relation tagging.ParserDiscourseSyntaxParserForestGeneratorDecoderChooserLengthOutput ... . For instance, if is “Themayor is now looking for re-election.”, is“The mayor is now looking for re-election.He has to secure the vote of the democrats.”and is “The major is now looking for re-election. ... performed on a com-bined discourse/syntax tree called the DS-tree. TheDS-tree for Text (1) is shown in Figure 1 for refer-ence.Suppose we start with the summary “Themayor is looking for...

Báo cáo khoa học: "A Beam-Search Extraction Algorithm for Comparable Data" pptx

... Papers, pages 225–228,Suntec, Singapore, 4 August 2009.c2009 ACL and AFNLPA Beam-Search Extraction Algorithm for Comparable DataChristoph TillmannIBM T.J. Watson Research CenterYorktown Heights, ... (Munteanu and Marcu, 2005). For a given source sentence S, a max-imum entropy (ME) classiﬁer is appliedto a large set of candidate target transla-tions . A beam-search algorithm is usedto abandon ... our Spanish-English data.1 IntroductionThe paper presents a novel algorithm for ex-tracting parallel sentence pairs from comparable monolingual news data. We select source-targetsentence pairs...

Tài liệu Báo cáo khoa học: "A Mobile Touchable Application for Online Topic Graph Extraction and Exploration of Web Content" ppt

... can explore in an uniform wayboth new information nuggets and validated back-ground information nuggets interactively. Fig. 1summarizes the main components and the informa-tion flow.Figure ... Saarbrücken{neumann|schmeier}@dfki.deAbstractWe present a mobile touchable application for online topic graph extraction and explorationof web content. The system has been imple-mented for operation on an iPad. The topicgraph is constructed ... in-formation between chunk pairs which explic-itly takes their distance into account. An ini-tial user evaluation shows that this system isespecially helpful for finding new interestinginformation...

Báo cáo khoa học: "A Bio-inspired Approach for Multi-Word Expression Extraction" doc

... pattern extraction isalways a bottleneck for MWE extraction for lackof good knowledge of global solution.3 Algorithms for MWE Extraction 3.1 Pure Mathematical MethodAlthough sequence alignment algorithm ... in bioinformatics (Michael,2003),(Knut,2000), (Hans,1999), it was rarely reportedin MWE extraction. In fact, it also applies toMWE extraction especially for complex struc-tures. Algorithm. 1.1. ... (-y +ies), etc. A set of tense forms, such as past, presentand future forms, are also transformed into origi-nal forms. These tokenlized sequences will im-prove extraction quality.Pairwise...

Báo cáo khoa học: "A Multi-resolution Framework for Information Extraction from Free Text" pptx

... 592–599,Prague, Czech Republic, June 2007.c2007 Association for Computational LinguisticsA Multi-resolution Framework for Information Extraction from Free TextMstislav Maslennikov and Tat-Seng ... dependency path extraction. The re-sulting system outperforms the previous approaches by 3%, 7%, 4% on MUC4, MUC6 and ACE RDC domains respec-tively. 1 Introduction Information Extraction (IE) ... evaluation methodology for the candidate templates. While the performance of the MUC4 domain is measured for each slot indi-vidually; the MUC6 task measures the perform-ance on the extracted...

Báo cáo khoa học: "An efﬁcient algorithm for building a distributional thesaurus (and other Sketch Engine developments)" pdf

... included.The algorithm then loops over each context(CONTEXTS is the set of all contexts): for r, w′ in CONTEXTS:WLIST = set of all w where w, r, w′ exists for w1in WLIST: for w2in ... Poster Sessions, pages 41–44,Prague, June 2007.c2007 Association for Computational LinguisticsAn efﬁcient algorithm for building a distributional thesaurus (and otherSketch Engine developments)Pavel ... above the thresh-old2http://www.natcorp.ox.ac.uk3http://www.askoxford.com/oec/ We are grateful to OxfordUniversity Press for permission to use the OEC.42Corp MIN WDS TYP CTX TIMEBNC 1 152k...

Tài liệu Báo cáo khoa học: A systems biology approach for the analysis of carbohydrate dynamics during acclimation to low temperature in Arabidopsis thaliana doc

... electrode. For starch extraction, pellets for ethanol extraction weresolubilized by heating them to 95 °Cin0.5m NaOH for 30 min. After acidiﬁcation with 1 m CH3COOH, thesuspension was digested for ... patternsearch method for bound constrained gloabal optimiza-tion. J Glob Optim 39 , 197–219.34 Schmidt H & Jirstrand M (2006) Systems Biology Tool-box for MATLAB: a computational platform for research ... would like to thank S. Stutz for fruitful discussionsand for helping with measurements of enzyme activi-ties at low temperature. We would also like to thankA. Allinger for expertise in plant cultivation,...

Tài liệu Báo cáo khoa học: a-Conotoxins as tools for the elucidation of structure and function of neuronal nicotinic acetylcholine receptor subtypes doc

... target for prey capture. However, the geneticinformation for ÔunderdevelopedÕ a-conotoxins targetingother nAChR subtypes might still be present in the snailsand could supply novel ligands for ... indicating that at least two othersubunits are required for effective channel formation. InCorrespondence to A. Nicke, Max Planck-Institute for Brain Research,Deutschordenstr. 46, D-60528 Frankfurt, ... selectivity for different nAChRsubtypes, with all known a3/5-conotoxins being selective for the muscle-type nAChR, while the only publisheda4/6-conotoxin and most a4/7-conotoxins are selective for neuronal...

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