Tài liệu Báo cáo khoa học: "Automatic Detection of Nonreferential It in Spoken Multi-Party Dialog" doc

... written text, and it contains signiﬁcantly more instances of it, includ-ing some types of nonreferential it not found in written text.3.1 The ICSI Meeting CorpusThe ICSI Meeting Corpus (Janin ... available during training or test-ing. With this setting, the classiﬁer achieved a re-call of 55.1%, a precision of 71.9% and a resultingF-measure of 62.4% for the detection of the class nonreferential. ... next to- in nitive and the next adjective: it now produced54Syntactic Patterns1. INF it do it 10. it BE adj it was easy11. it BE obj it s a simple question13. it MOD-VERBS INF obj it ll take...

Tài liệu Báo cáo khoa học: "Automatic Extraction of Lexico-Syntactic Patterns for Detection of Negation and Speculation Scopes" pdf

... of phrases splitinto subsets (preceding vs. following their scope) toidentify cues using string matching. The cue scopesextend from the cue to the beginning or end of thesentence, depending ... anno-tated with negation/speculation cues and theirscopes (the BioScope corpus). The systemperforms on par with state -of- the-art machinelearning systems. Additionally, the intuitiveand linguistically ... adaptation of the rule set to newdomains and corpora.1 MotivationInformation Extraction (IE) systems often facethe problem of distinguishing between afﬁrmed,negated, and speculative information in...

Tài liệu Báo cáo khoa học: PCR detection of nearly any dengue virus strain using a highly sensitive primer ‘cocktail’ ppt

... cited study of Lanciotti et al. [9] have lostsome predicted sensitivity with the sequencing of avery large number of additional dengue strains sincethat time.On lowering the stringency of ... strainsand facilitating a rapid detection method. *In thispaper, ‘sensitivity’ refers to the diagnostic sensitivity,which is different from analytical sensitivity. Diagnos-tic sensitivity ... speciﬁcity of the dengue primers was tested against 291nondengue ﬂaviviruses, including 67 strains of Japaneseencephalitis virus, 28 strains of St Louis encephalitis virus,172 strains of West...

Tài liệu Báo cáo khoa học: "Automatic learning of textual entailments with cross-pair similarities" ppt

... learning of textual entailments with cross-pair similaritiesFabio Massimo ZanzottoDISCoUniversity of Milano-BicoccaMilan, Italyzanzotto@disco.unimib .it Alessandro MoschittiDepartment of Computer ... ScienceUniversity of Rome “Tor Vergata”Rome, Italymoschitti@info.uniroma2 .it Abstract In this paper we deﬁne a novel similaritymeasure between examples of textual en-tailments and we use it as a ... favor its applicabilitywith SVMs. The Eq. 6 improvement depends onthree factors: (1) its computation complexity; (2)a correct marking of tree nodes with placeholders;and, (3) the pruning of...

Tài liệu Báo cáo khoa học: "Automatic Construction of Polarity-tagged Corpus from HTML Documents" docx

... built in either of thefollowing two ways. It is built manually, or createdfrom review sites such asAMAZON.COM. In somereview sites, the review is associated with meta-data indicating its polarity. ... Learning the polarity of wordsThere are some works that discuss learning the po-larity of words instead of sentences.Hatzivassiloglou and McKeown proposed amethod of learning the polarity of ... time.Figure 3: Instances of the linguistic pattern.third and fourth item. It is hard to precis ely pre-dict the polarity of each sentence in such items,because such item sometimes includes both...

Tài liệu Báo cáo khoa học: "Automatic Identification of Pro and Con Reasons in Online Reviews" ppt

... researchers in Computational Lin-guistics define an opinion for their studies. It is difficult to define what an opinion means in a computational model because of the difficulty of determining the ... performed very well in detecting opinion bearing sentences. Both algorithms are described in that paper. The motivation for including the list of opin-ion-bearing words as one of our features ... mini-mum unit of opinion. Researchers try to identify opinion-bearing sentences, classify their senti-ment, and identify opinion holders and topics of opinion sentences. Document level opinion...

Tài liệu Báo cáo khoa học: "Automatic Evaluation of Sentence-Level Fluency Andrew Mutton∗" pdf

... wereinterested in the level of agreement of intuitive un-derstanding of ﬂuency. We instructed them also thatthey should evaluate the sentence without consider-ing its content, using Colourless ... quality. The two main in- sights in applying SVMs here are, ﬁrst, noting thathuman translations are generally good and machinetranslations poor, that binary training data can becreated by taking ... Markov assumption of independence in much the same way as Witbrockand Mittal (1999) in their combination of contentand language model probabilities, by backtrackingat every state in order to discourage...

Tài liệu Báo cáo khoa học: "Automatic Evaluation of Machine Translation Quality Using Longest Common Subsequence and Skip-Bigram Statistics" doc

... Evaluation of Machine Translation Quality Using Longest Com-mon Subsequence and Skip-Bigram Statistics Chin-Yew Lin and Franz Josef Och Information Sciences Institute University of Southern ... using bag -of- words instead. Instead of error measures, we can also use accuracy measures that compute similarity between candidate and ref-erence translations in proportion to the number of ... as Bleu. Since unigram matches do not distinguish words in consecutive positions from words in the wrong order, measures based on position-independent unigram matches are not sensitive to...

Tài liệu Báo cáo khoa học: "Automatic clustering of collocation for detecting practical sense boundary" ppt

... the popularity and the variety of the algorithms – soft and hard clustering and graph clustering etc. In all clustering methods, used similarity measure is the cosine similarity between two ... Impractical senses in dictionary In (Patrick and Lin, 2002), senses in dictionary – especially in WordNet – sometimes don’t contain the senses appearing in the corpus. Some senses in the manual ... word with the number of clusters that the most clustering algorithms were extracted. After deciding the final number of senses, we mapped clusters between clustering methods. By comparing...

Tài liệu Báo cáo khoa học: "Automatic Collection of Related Terms from the Web" pptx

... dictionary for a certain domain. Re-cursive application of the method enables to collect alist of terms that are used in a certain domain: the listbecomes a glossary of the domain. A technical-termdictionary ... thirdconditioncan be checked by integrating the system with termexplainer (Sato, 2001), which produces a deﬁnitionor explanation of a given term; the fourth conditioncan be checked by using the ... Weuse α =0.5 in experiments.The result of automatic term recognition for “自然言語処理(natural language processing)” is shown in the column candidate in Table 1.2.3 FilteringThe ﬁltering step is...

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