Báo cáo khoa học: "Extracting Paraphrases from a Parallel Corpus" pdf

... ex-tract new paraphrases. In addition to learning lex-ical paraphrases, the method also learns syntactic paraphrases, by generalizing syntactic patterns ofthe extracted paraphrases. Extracted paraphrases are ... well as syntactic para-phrases.1 Introduction Paraphrases are alternative ways to convey thesame information. A method for the automaticacquisition of paraphrases has both practical andlinguistic ... produced 9483 pairs of lexical paraphrases and 25 morpho-syntactic rules. Toevaluate the quality of produced paraphrases, wepicked at random 500 paraphrasing pairs from thelexical paraphrases produced...

Báo cáo khoa học: "Extracting Paraphrases from Deﬁnition Sentences on the Web" pptx

... ReferencesSusumu Akamine, Daisuke Kawahara, Yoshikiyo Kato,Tetsuji Nakagawa, Yutaka I. Leon-Suematsu, TakuyaKawada, Kentaro Inui, Sadao Kurohashi, and YutakaKidawara. 2010. Organizing information on ... expressions that have a large distributional simi-larity are paraphrases. There are also variants of thisapproach that address entailment acquisition (Geffetand Dagan, 2005; Bhagat et al., 2007; ... and thus contain many paraphrases. We show that a large numberof paraphrases can be automatically extractedwith high precision by regarding the sentencesthat deﬁne the same concept as parallel...

Báo cáo khoa học: "Extracting Paraphrases of Technical Terms from Noisy Parallel Software Corpora" pot

... extracted from non -parallel corpora using contextual similarity (Lin, 1998).They can also be obtained from parallel corporaif such data is available (Barzilay and McKeown,2001; Ibrahim et al., ... of ex-tracting technical paraphrases from a par-allel software corpus, namely, a collec-tion of duplicate bug reports. Paraphraseacquisition is a fundamental task in theemerging area of text ... Recently, there arealso a number of studies that extract paraphrases from multilingual corpora (Bannard and Callison-Burch, 2005; Zhao et al., 2008).The approach in (Barzilay and McKeown,2001)...

Báo cáo khoa học: "Extracting loanwords from Mongolian corpora and producing a Japanese-Mongolian bilingual dictionary" ppt

... Fourth, as performed by Fujii et al. (2004), we use a Japanese Katakana dictionary and extract a candidate loanword that is phonetically similar to a Katakana word as a loanword. We romanize ... identify Katakana words that are phonetically similar to a candidate loanword. In other words, we use a candidate loanword, and each Katakana word as a query and a document, respectively. We call ... methods cannot be applied to a language pair where a large parallel or comparable corpus is not available, such as Mongolian and Japanese. Fujii et al. (2004) proposed a method that does not...

Báo cáo khoa học: "Extracting Sequences from the Web" pptx

... shock.Largest tobacco company in the world:1. Philip Morris, 2. BAT, 3. Japan Tobacco,4. Imperial Tobacco, 5. Altadis.Largest rodent in the world:1. Capybara, 2. Beaver, 3. Patagonian Cavies. ... require a signiﬁcant amount of la-beled data. To get around this problem, we repre-sent each (x, k, s) as a vector of features and traintwo Naive Bayes classiﬁers: one for classifying sand one ... regularities. Other examples includeevents (with regularities about actor, location, andtime) and a generic organization-role frame (withregularities about person, organization, and roleplayed).the...

Tài liệu Báo cáo khoa học: "Acquiring Receptive Morphology: A Connectionist Model" pdf

... a partic- ular template. The present template was ClaC2aCaa, the past template aCtC2aaC3, and the future template aClaC2Caa. Thus the three forms for the root pmn were pamana, apmaan, ... rules, involving three forms: (1) present: CzaC2aCaa, past: aCiC2aaC3, future: aClaC2C 3a (2) present: ClaC2Caaa, past: aC1C2aCaa, future: aClaC3aC2. 282 PC 2 ,,,,i,,, 2 -0.4 -0.2 ... derivational morphological rules are attested in the world's lan- guages: aj~zation, by which a grammatical morpheme is added to a root (or stem), either before (prefixation), after (suJ~ation),...

Tài liệu Báo cáo khoa học: "GRADED UNIFICATION: INTERACTIVE A FRAMEWORK PROCESSING" pdf

... unification strength is always a value between 0 and 1. The Parser: Activated Chart Edges The parser is a modified unification-based chart parser. Chart edges are assigned activation levels, which ... GRADED UNIFICATION: A FRAMEWORK FOR INTERACTIVE PROCESSING Albert Kim * Department of Computer and Information Sciences University of Pennsylvania Philadelphia, Pennsylvania, USA email: alkim©unagi, ... system's architecture parallels that of a conventional unification-based parser. Feature Structures: Prioritized Features The feature structures which encode the grammar in this system are...

Báo cáo khoa học: "Extracting Semantic Roles from a Model of Eventualities" pot

... representation of Max embarque la caisse sur le cargo [3J/Max em- barks the crate on the cargo boat can be analyzed in two steps. First there is a transition from an initial state IS where ... cargo~the crate was embarked on the cargo boat, and is schematized in (2). One of the argument (cargo boat) is used as a localization while the other argument is used as a localized entity (crate), ... the crate is not on the cargo boat to a final state FS where the crate is on the cargo boat. The final state can be expressed by the static passive, la caisse est embarqude sur le cargo~the...

Báo cáo khoa học: "Extracting a Representation from Text for Semantic Analysis" doc

... facet. Finally, we train a machine learning classi-fier on training data and use it to classify unseen test examples, assigning a Table 1 label for each reference answer facet. We used a variety ... answer facets that are not ad-dressed at all by the student’s answer Table 1. Facet Annotation Labels 3 Automated Classification As partial validation of this knowledge representa-tion, we present ... extraction. Remaining details can be found in (Nielsen et al., 200 8a) and are not central to the semantic representation focus of this paper. Current classification accuracy, assigning a Table...

Báo cáo khoa học: "Extracting Causal Knowledge from a Medical Database Using Graphical Patterns" doc

... wereapplied to two sets of new abstracts downloaded from Medline: 100 new abstracts from the origi-nal four medical areas (25 abstracts from eacharea), and 30 abstracts from two new domains(15 ... kill can be para-phrased as to cause to die.We analyzed the 200 training abstracts toidentify the linguistic markers (such as causallinks and causative verbs) used to indicate causalrelations ... parse tree is matched with a set of graphical causality patterns that indicatethe presence of a causal relation. When a matchis found, various attributes of the causal relation(e.g. the cause,...

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