Báo cáo khoa học: "A Probabilistic Modeling Framework for Lexical Entailment" potx

... Association for Computational Linguistics:shortpapers, pages 558–563, Portland, Oregon, June 19-24, 2011. c 2011 Association for Computational Linguistics A Probabilistic Modeling Framework for Lexical ... initial probabilistic modeling framework for lexical entailment, with suitable EM-based parame- ter estimation. Our model considers promi- nent entailment factors,...

Ngày tải lên: 30/03/2014, 21:20

... re-ranking model performs rather well for a limited number of candidate structures, and out- performs Charniak’s model when k = 5. In this case we observe a small boost in performance for the detection ... first probabilistic extension to this framework, which aims at modeling the different levels of the repre- sentation (section 3). We test our model on parsing the WSJ treebank using...

Ngày tải lên: 20/02/2014, 04:20

... basis of the lexical infor- mation without considering other sources of in- formation cues like discourse features, acoustic features, and so forth. 3 A risk minimization framework for extractive ... into this framework, 2) exploring different modeling approaches for this framework, 3) investigating discriminative training criteria for training the component mod- els in th...

Ngày tải lên: 16/03/2014, 23:20

... tentially provide a uniform formalization, allowing disparate theories to be compared on the basis of those properties. We dis- cuss L2,p, a monadic second-order logical framework for such an approach ... characterized as constrain~ based the formalism (or formal framework) provides a class of structures and a means of precisely stating constraints on their form, the linguistic...

Ngày tải lên: 17/03/2014, 09:20

... 592–599, Prague, Czech Republic, June 2007. c 2007 Association for Computational Linguistics A Multi-resolution Framework for Information Extraction from Free Text Mstislav Maslennikov and Tat-Seng ... dependency rela- tions in a multi-resolution framework for IE. The 592 framework enables us to connect entities in differ- ent clauses and thus improve the performance on long-di...

Ngày tải lên: 23/03/2014, 18:20

... metric-based framework for the task of automatic taxonomy induction. The framework incrementally clus- ters terms based on ontology metric, a score indicating semantic distance; and transforms the ... of a tax- onomy. For a taxonomy T(C,R), we define its information function as: ∑ ∈< = C y c x cyx yx ccdTInfo ,, ),()( (1) Similarly, we define the information function for a...

Ngày tải lên: 30/03/2014, 23:20

... particular for the Telic role, (explored e.g. in the EuroWordNet project, the European WordNet). Qualias are well-designed and useful for nouns, but look more artificial for other lexical categories. ... into on- tological domains for modelling some forms of metaphors. • Types are not sufficiently 'constrained' to ac- count for the constraints holding, for each...

Ngày tải lên: 23/03/2014, 19:20

... providing helpful information for automatic constituent analysis and, for the time being, many subcategory symbols are not included in the output of the present system. (For the current set ... tag adjacency statistics for potential word tag disambiguation. But no parsed corpus exists yet for the purposes of derivln~ statistics for disambiguating parsing information. A sam...

Ngày tải lên: 22/02/2014, 09:20

... use of probabilistic methods for disambiguation of linguistic structures, and (b) the use of a corpus of unconstrained English text as a testbed for our methods, as a source of information ... trees have been closed. STATISTICS FOR THE MOTHER-DAUGHTER SEQUENCES The main problem is how to store the frequency information on possible daughter sequences for each mother constituen...

Ngày tải lên: 22/02/2014, 09:20

... present different qualities. For example, both topic “css test” and “test suite” are the bi-gram matching for query “css test suite”; however, the former might be more informative. To model that, ... spe- cific evidences existing in the documents. An evidence-oriented probabilistic model for ex- pert search and a method for the implementa- tion are proposed. Experimental results...

Ngày tải lên: 08/03/2014, 01:20