Báo cáo khoa học: "A SYSTEM ACTIC APPROACH TO DISCOURSE SEMANTICS " pdf

... here. "I DISCOURSE STRUCTURES AT DIFFERE.NT LEVELS If a discourse understanding system is to be able to assemble the meaning of a complex discourse fragment (such as a story or an elaborate ... this system is a formal model of discourse syntax and semantics, but not a computer implemen- tation of such a model. For a system to be able to understand a dis- co...

Ngày tải lên: 31/03/2014, 17:20

... straightforward in theory, making direct use of such a definition is impractical because there are simply too many classes to consider. Rather than consid- ering all possible classes, I propose ... information to the discovery of predicate argument relations. Hindle investigates word co-occurrences as mediated by syntactic struc- ture. A six-million-word sample of Associated Press...

Ngày tải lên: 31/03/2014, 06:20

... syntactic parse trees for SMT. Similar to most previous work, our approach tries to rearrange the source tree nodes sharing a common parent to mimic 912 the word order in target language. To this ... sensitive to parser er- rors; on the other hand, integrated model is forced to use a longer distortion limit which leads to more search errors during decoding time. It is possible...

Ngày tải lên: 19/02/2014, 19:20

... differences hold to a lesser degree when a partial dictionary is provided. With MLHMM, different tokens of the same word type are usually assigned to the same cluster, but types are assigned to clusters ... We would also like to thank Noah Smith for providing us with his data sets. Eisner, 2005). Nearly all of these approaches have one aspect in common: the goal of learning is to id...

Ngày tải lên: 20/02/2014, 12:20

... state of a simple finite-state automaton that only has two states. The automaton is set to initial state (q 0 ) at the top of a message. It makes a transition to state (q 1 ) 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 p...

Ngày tải lên: 20/02/2014, 12:20

... the future, we plan to explore phonological context and use more flexible topological structures to model acoustic units within our framework. Acknowledgements The authors would like to thank Hung-an ... R 39 to denote the t th feature frame of the i th utterance. Fig. 1 illustrates how the speech signal of a single word utterance banana is converted to a sequence of feature vectors...

Ngày tải lên: 07/03/2014, 18:20

... 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 speech utterances. The contributions of our work are: • Our proposed two-step approach allows...

Ngày tải lên: 07/03/2014, 18:20

... Syntax-Free Approach to Japanese Sentence Compression Tsutomu HIRAO, Jun SUZUKI and Hideki ISOZAKI NTT Communication Science Laboratories, NTT Corp. 2-4 Hikaridai, Seika-cho, Soraku-gun, Kyoto 619-0237 ... summariza- tion systems often have to process megabytes of documents. Parsers are still slow and users of on- 827 demand summarization systems are not prepared to wait for parsing...

Ngày tải lên: 08/03/2014, 00:20

... S that is likely to be an answer to Q and assigns a score to it. Once one has these two modules, one has a QA system because finding the answer to a question Q amounts to selecting the sub-string ... “legal” is related to “rule”, which in turn is related to “mandatory”; that “age” is related to “aged”; and that “Argentine” is related to “Argentina”. It is not difficu...

Ngày tải lên: 08/03/2014, 04:22

... as tailored to the financial do- main, and some forward-looking exten- sions to the approach that enables users to specify classifications on the fly. 1 Introduction Our goal is to support the ... practices. To gauge a company’s modus operandi in acquiring other companies, it isn’t enough to know just that an acquisition occurred, but it may also be impor- tant to understand t...

Ngày tải lên: 08/03/2014, 21:20