Báo cáo khoa học: "TBL-Improved Non-Deterministic Segmentation and POS Tagging for a Chinese Parser" pdf

Tài liệu Báo cáo khoa học: "Joint Word Segmentation and POS Tagging using a Single Perceptron" docx

... to avoid error propagation and make useof POS information for word segmentation, segmen-tation and POS tagging can be viewed as a singletask: given a raw Chinese input sentence, the joint POS ... language modeling and utterance classiﬁca-tion (Saraclar and Roark, 2005) and labeling and chunking (Shimizu and Haas, 2006). Though ourmodel is built speciﬁcally for Chinese word segmen-tation ... search algorithm.Nakagawa and Uchimoto (2007) proposed a hy-brid model for word segmentation and POS tagging using an HMM-based approach. Word information isused to process known-words, and...

Báo cáo khoa học: "TBL-Improved Non-Deterministic Segmentation and POS Tagging for a Chinese Parser" pdf

... not an easy task because segmentation and POS tagging standards vary, and our test data havenot been used for a ﬁnal evaluation before. Nev-ertheless, there are of course systems that performword ... segmentation and POS tagging analysis to the parser proper orthey are character-based, i.e. segmentation and tagging are part of the parsing process. Althoughseveral treebank-induced character-based parsers for ... performword segmentation and POS tagging for Chinese and have been evaluated on data similar to our testdata.Published results also vary as to the evalua-tion measures used, in particular when...

Báo cáo khoa học: "Joint Hebrew Segmentation and Parsing using a PCFG-LA Lattice Parser" docx

... unlexicalized, treebank-derived gram-mars, and showed that better grammars contributeto better segmentation accuracies. Goldberg et al.(2009) showed that segmentation and parsing ac-curacies can ... were available to the parser. The numbers arevery high: an F-measure of about 88.8% for thegold segmentation and tagging, and about 82.8% for gold segmentation only. This shows the adequacyof ... can admit as many as 15 distinctreadings.Agreement Hebrew grammar forces morpholog-ical agreement between Adjectives and Nouns(which should agree on Gender and Number and deﬁniteness), and...

Báo cáo khoa học: "Semantic Discourse Segmentation and Labeling for Route Instructions" potx

... detec-tion and tracking, and one segment of the text.In order to annotate unambiguously, we need todetect and track both landmarks and actions. A landmark is a hallway or a door, and an actionis a ... 7Table 1: Example Parts: linear-chain CRFsinvolves exactly one landmark, we can label thesegment with an action and a specific landmark. For example,GHR1 := ”advance to the first hallway on ... a landmark. Note that all three moveshave to do with the same landmark, and two orthree moves on the same landmark constitute oneaction. An action is ambiguous until x is filledwith an unambiguous...

Tài liệu Báo cáo khoa học: "Hand-held Scanner and Translation Software for non-Native Readers" docx

... off-line)material in foreign languages. It consistsof a hand-held scanner and sophisticatedparsing and translation software to providereaders a limited number of translationsselected on the basis of a ... terminological help based on a full linguisticanalysis of the source material. TwicPen uses a very similar technology, but is available on per-sonal computers (or even PDAs) and uses a hand-held scanner ... which canbe as short as one word or as long as a wholesentence or even a whole paragraph.• The text appears in the user interface of theTwicPen system and is immediately parsed and tagged...

Tài liệu Báo cáo khoa học: "Paraphrasing Using Given and New Information in a Question-Answer System" docx

... and new information in formulating a paraphrase that differs in a meaningful way from the user's question. A description is also given of the transformational grammar used by the paraphraser ... user's mistaken presupposi tions. * This example, as well as all sample questions and paraphrases that follow, were, =aken from actual sessions with the paraphraser. Question (A) mad ... mpommred by NASA. 67 fact, a lexicon and database schema are the only items which contain domain-specific information. Consequently, the CO-OP system is a portable one; a change of database requires...

Tài liệu Báo cáo khoa học: "Skip N-grams and Ranking Functions for Predicting Script Events" doc

... script (Chambers and Jurafsky, 2008;Chambers and Jurafsky, 2009; Chambers and Ju-rafsky, 2011; Manshadi et al., 2008; McIntyre and Lapata, 2009; McIntyre and Lapata, 2010; Regneriet al., 2010). ... 2-skip bigrams achievesthe lowest average rank and the highest Recall@50. For the Fairy Tale corpus, 1-skip bigrams and 2-skip bigrams perform similarly, and both havelower average rank and higher ... Next,statistics over these event chains are gathered and stored. Finally, the gathered statistics are used tocreate a model that takes as input a partial script and produces as output a ranked...

Báo cáo khoa học: Alternative splicing: good and bad effects of translationally silent substitutions pdf

... codon information, for an amino acid.Translationally silent variations thataffect splicing and diseaseClinical studies identifying aberrant splicing mutationsare of great importance for genetic ... recently an expensive task) and in the underappre-ciated belief that sequence variations far away mayaffect far away splicing signals. With increased aware-ness we predict that this will change ... acquisition of an antagonisticfunction. An explanation for the second category relieson the fact that a weakly tolerated effect on splicingcan be enhanced by additional phenomena such asaffected...

Báo cáo khoa học: Functional ﬁne-mapping and molecular modeling of a conserved loop epitope of the measles virus hemagglutinin protein pdf

... 1.35-mMphosphatase substrate(SIGMA 104Ò, Sigma-Aldrich, Bornem, Belgium) solutionwas added and the absorbance was measured after 30 and 60 min at 405 nm on a SPECTRAmax PLUS384microplatereader system ... 0.769), a Ôtwo-state reactionÕ model assuming a conformational change (v2¼ 0.548) and a Ôbivalent analyteÕ(v2¼ 0.539) model using theBIAEVALUATION3.01 software.It was not possible to generate ... Q391 and E395,which are intolerant to amino acid substitutions, are beingsolvent-exposed on the protein surface and represent a minimal target for neutralizing antibodies. Neutralizationescape...

Báo cáo khoa học: "Combining Textual Entailment and Argumentation Theory for Supporting Online Debates Interactions" ppt

... attacked at all is accepted.Deﬁnition 1. An abstract argumentation framework (AF)is a pair A, → where A is a set of arguments and →⊆ A × A is a binary relation called attack.Aim of the argumentation-based ... inference: A ientails A jmeans that A iis more speciﬁc of A j,thus an attack towards A jis an attack also towards A i. The attacks of type 2, instead, are more rare,but they may happen in debates: ... weintroduce additional attacks, and we have the follow-ing two options: [Type 1] A isupports A jthen A kattacks A j, and [Type 2] A isupports A jthen A kat-tacks A i. The attacks of type 1 are...

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