Báo cáo khoa học: "A KNOWLEDGE ENGINEERING APPROACH TO NATURAL LANGUAGE UNDERSTANDING" pot

... linguistic knowledge into the network in natural language, to have this knowledge available to query and reason about, and to use this knowledge for processing text including additional NLU knowledge. ... realm of a Knowledge Engineering approach to Natural Language Understanding. A basic core of NL rules enable the NLU expert to input his natural language rules and his lexicon into the semantic ... study of a Knowledge Engineering approach to Natural Language Understanding. A computer system is being developed to handle the acquisition, representation, and use of linguistic knowledge. ...

Báo cáo khoa học: "A FULLY STATISTICAL APPROACH TO NATURAL LANGUAGE INTERFACES " potx

... phenomenon, similar in spirit to one-anaphora, is illustrated by the following dialog:: USER 1: SYSTEM 1: USER2: I want to fly from Boston to Denver. <displays Boston to Denver flights> Which ... resulting in an end -to- end system that maps input utterances into meaning representation frames. 1. Introduction A recent trend in natural language processing has been toward a greater emphasis ... return flights from Denver to Boston, it is intuitively much less likely that the user means the "on Tuesday" constraint to continue to apply. The discourse history H simply consists...

Báo cáo khoa học: "A Syntax-Free Approach to Japanese Sentence Compression" potx

... Syntax-Free Approach to Japanese Sentence CompressionTsutomu HIRAO, Jun SUZUKI and Hideki ISOZAKINTT Communication Science Laboratories, NTT Corp.2-4 Hikaridai, Seika-cho, Soraku-gun, Kyoto 619-0237 ... alternative to these tree trimmingapproaches, sequence-oriented approaches havebeen proposed (McDonald, 2006; Nomoto, 2007;Hori and Furui, 2003; Clarke and Lapata, 2006).Nomoto (2007) and ... trimming approach is that they have the poten-tial to drop arbitrary words from the original sen-tence without the need to consider the boundariesdetermined by the tree structures. This approach...

Báo cáo khoa học: "A Corpus-Centered Approach to Spoken Language Translation" pptx

... (best) down to 0.0(worst).(3) Estimated TOEIC score: It is important to interpret MT performance from the viewpoint of a language proficiency test such as TOEIC4. A trans-lator compared ... evaluation, 9 translatorswho are native speakers of the target language ranked the MT translations into 4 ranks: A, B, C,and D, from good to bad (Sumita et al., 1999). 3RED rank: An automatic ranker ... Corpus-Centered Approach to Spoken Language TranslationEiichiro SUMITA, Yasuhiro AKIBA, Takao DO!, Andrew FINCH, Kenji IMAMURA,Michael PAUL, Mitsuo SHIMOHATA, and Taro WATANABEATR Spoken Language...

Báo cáo khoa học: "A Corpus-Based Approach to Deriving Lexical Mappings" potx

... applied to, the same, large body of text and a mapping de- rived from the distributions of the pair of tag-sets in the corpus. 2 Case Study In order to test this approach we attempted to map together ... EACL '99 A Corpus-Based Approach to Deriving Lexical Mappings Mark Stevenson Department of Computer Science, University of Sheffield, Regent Court, 211 Portobello Street, Sheffield S1 ... which each token has two an- notations. For example ponders/VBZ/VVZ, which represents the token is ponders assigned the Brill tag VBZ and VVZ C5 tag. The bi-tagged corpus was used to derive...

Tài liệu Báo cáo khoa học: "A Ranking-based Approach to Word Reordering for Statistical Machine Translation" doc

... from English to several SOV languages.The drawback for hand-crafted rules is that they de-pend upon expert knowledge to produce and are lim-ited to their targeted language pairs.Automatically ... consider to notonly change the order of the source language, butalso inject syntactic structure of the target language into source language by adding pseudo words intosource sentences.AcknowledgementsNan ... sensitive to parser er-rors; on the other hand, integrated model is forced to use a longer distortion limit which leads to moresearch errors during decoding time. It is possible to 918use...

Tài liệu Báo cáo khoa học: "A Fully Bayesian Approach to Unsupervised Part-of-Speech Tagging∗" docx

... distributions, whichare typical of natural language. These kinds of pri-ors can lead to degenerate solutions if the parametersare estimated directly.Before describing our approach in more detail,we ... differences hold to alesser degree when a partial dictionary is provided.With MLHMM, different tokens of the same wordtype are usually assigned to the same cluster, buttypes are assigned to clusters ... We would also like to thankNoah Smith for providing us with his data sets.Eisner, 2005). Nearly all of these approaches haveone aspect in common: the goal of learning is to identify the set...

Tài liệu Báo cáo khoa học: "A Feature Based Approach to Leveraging Context for Classifying Newsgroup Style Discussion Segments" pptx

... state of a simple finite-state automaton that only has two states. The automaton is set to initial state (q0) at the top of a message. It makes a transition to state (q1) when it encounters ... is to enable the quality and nature of discussions that occur within an on-line discussion board to be communicated in a summary to a potential new-comer or group moderators. We propose to ... where a message appears. We refer to this feature as deep. This is expected to improve per-formance to the extent that thread initial messages may be rhetorically distinct from messages that...

Báo cáo khoa học: "A Nonparametric Bayesian Approach to Acoustic Model Discovery" docx

... thefuture, we plan to explore phonological context anduse more ﬂexible topological structures to modelacoustic units within our framework.AcknowledgementsThe authors would like to thank Hung-an ... R39 to denote the tthfeature frame of theithutterance. Fig. 1 illustrates how the speech signalof a single word utterance banana is converted to asequence of feature vectors xi1 to xi11.Boundary ... gi0 to be the beginning ofan utterance, and Li to be the number of boundaryframes in an utterance. For the example shown inFig. 1, Liis equal to 6.Segment (pij,k) We deﬁne a segment to...

Báo cáo khoa học: "A Two-step Approach to Sentence Compression of Spoken Utterances" pdf

... ﬁrst step, 8 anno-tators were asked to select words to be removed to compress the sentences. In the second step, 6 an-notators (different from the ﬁrst step) were asked to pick the best one ... propose to use a two-step approach in this pa-per for sentence compression of spontaneous speechutterances. The contributions of our work are:• Our proposed two-step approach allows us to incorporate ... andreranking is able to yield additional gain, espe-cially when training is performed to take intoaccount multiple references.1 IntroductionSentence compression aims to preserve the most...

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