Báo cáo khoa học: "An Unsupervised Vector Approach to Biomedical Term Disambiguation: Integrating UMLS and Medline" ppt

... 2008. c 2008 Association for Computational Linguistics An Unsupervised Vector Approach to Biomedical Term Disambiguation: Integrating UMLS and Medline Bridget T. McInnes Computer Science Department University ... vectors) using SenseClusters, ii) we calculate the cosine be- tween the instance vector and each of the concept vectors, and iii) we assign the concept who...

Ngày tải lên: 31/03/2014, 00:20

... estimator corresponds to maximum likelihood (Chi and Geman 1998), and which we shall refer to as "ML-PCFG". To this end, we used a random 90%/10% division of WSJ40 into a training set and ... St Andrews North Haugh, St Andrews KY16 9SX Scotland, UK rb@dcs.st -and. ac.uk Abstract We investigate generalizations of the all- subtrees "DOP" approach to unsuper...

Ngày tải lên: 20/02/2014, 12:20

... described an approach to automatic prosodic phrasing for Mandarin TTS synthesis based on word format and HMM and its variants. We also evaluated these methods through experiments and demonstrated ... Shanghai Jiao Tong University lijh888@sjtu.edu.cn Abstract Automatic phrasing is essential to Mandarin text- to- speech synthesis. We select word format as target linguis...

Ngày tải lên: 17/03/2014, 04:20

... difficult to handle this problem properly. This paper presents a finite state approach that integrates a phrasal verb expert lexicon between shallow parsing and deep parsing to handle morpho-syntactic ... features, can handle the structural problems for both phrasal verbs and other verbs. The following active and passive structures involving the PVs look after (correspond...

Ngày tải lên: 17/03/2014, 06:20

... inference to not allow that to occur. 4 Sentence parse trees are merged into a right-branching document parse tree. This allows us to extend tree distance to inter-sentence nodes. restricted to antecedent ... use R = (R 1 , . . . , R K ) to denote the vector of tem- plate role parameters. Note that this work assumes that there is a one -to- one mapping between entities and rol...

Ngày tải lên: 23/03/2014, 16:20

... attempts to identify the most suitable Travel Expert instance to handle the enquiry, or if it is unable to do so in this dialogue turn, to elicit further information from the user to help it ... list and functionality to push and pop the concepts and attributes that document the user's utterances and the system's responses. Enquiry Processor also contains...

Ngày tải lên: 24/03/2014, 03:20

... For example, to determine how similar (the only sense of) “factory” is to the word “plant,” we compute the similarity of “factory” to the “in- dustrial plant” sense of “plant” and to the “living thing” ... words to the user and asks whether the can- didate fits the concept. The user’s answer is fed back into the system, which takes into account this new information and presents...

Ngày tải lên: 30/03/2014, 21:20

... robust to failure. We aim both to explain this ability and to reproduce it. In this paper, we present a novel model of collab- oration in referential linguistic communication, and we describe and ... 3, inter- locutors work together over multiple turns to asso- ciate an entity with an agreed set of concepts that characterize it. On our approach, utterance planning and underst...

Ngày tải lên: 31/03/2014, 03:20

... linguistic tradition handling number and person combinations of Hungarian definite conjugation. 6 That is why it is very difficult to add new entries to the lexicons automatically in real NLP ... nite-state automaton). This structure transforms Humor 99 into a representation where three inde- pendent types of conditions can be set (on differ- ent levels) to control which morph...

Ngày tải lên: 23/03/2014, 19:20

... linguistic tradition handling number and person combinations of Hungarian definite conjugation. 6 That is why it is very difficult to add new entries to the lexicons automatically in real NLP ... nite-state automaton). This structure transforms Humor 99 into a representation where three inde- pendent types of conditions can be set (on differ- ent levels) to control which morph...

Ngày tải lên: 23/03/2014, 19:20