Báo cáo khoa học: "HPSG Parsing with Shallow Dependency Constraints" docx

... work and conclusions. 2 Fast dependency parsing and wide-coverage HPSG parsing 2.1 Data-driven dependency parsing Because we use dependency parsing as a step in deep parsing, it is important that ... our dependency and HPSG parsing approaches in section 2. In section 3, we present our framework for HPSG parsing with shallow dependency constraints, and in section 4 w...

Ngày tải lên: 23/03/2014, 18:20

... a pattern with which to expand it and then filling out that pattern with words drawn from a unigram distribution. This kind of coupled generative process can be naturally formalized with tree ... the rich literature on tree automata. This paper makes the connection concrete with a tree transducer based semantic parsing model and suggests that other models can be interpreted in a simi...

Ngày tải lên: 19/02/2014, 19:20

Ngày tải lên: 20/02/2014, 18:20

... Short Papers, pages 41–44, Suntec, Singapore, 4 August 2009. c 2009 ACL and AFNLP Incremental Parsing with Monotonic Adjoining Operation Yoshihide Kato and Shigeki Matsubara Information Technology ... incremental parsing. 1 Introduction Incremental parser reads a sentence from left to right, and produces partial parse trees which span all words in each initial fragment of the sentence....

Ngày tải lên: 17/03/2014, 02:20

... framework on the domain of semantic parsing shows ad- vantages in comparison with the original large margin methods. 1 Introduction Natural language semantic parsing is an interest- ing problem ... Bagging for semantic parsing The bagging method (Breiman, 1996) is sim- ply created K bootstrap with sampling m items from the training data of sentences and their logi- cal forms with...

Ngày tải lên: 17/03/2014, 04:20

... associating each node with one of the three atomic values ass, rec or 0. These values represent the Case properties of the node they are associated with; a node associated with the property ... Case assigner, a node associated with the property rec must be capable of being assigned Case, and a node associated with the property 0 must be neutral with respect to Case. The Cas...

Ngày tải lên: 17/03/2014, 20:20

... pairs. During parsing with both the NN method and the MF method, we used beam search with a post-word beam of 10. Increasing the beam size beyond this value did not significantly effect parsing accuracy. For ... undirected graphical model is used for parse reranking. Dependency parsing with dynamic Bayesian networks was considered in (Peshkin and Savova, 2005), with limited suc...

Ngày tải lên: 23/03/2014, 18:20

... algo- rithm with neither of the two refinements presented; with just early update; and with both. Early update makes 1 2 3 4 5 6 82 83 84 85 86 87 88 Number of passes over training data F−measure parsing ... results that suggest that FILTER can be chosen in such a way as to give ef- ficient parsing performance together with high parsing accuracy. The exact implementation of the pa...

Ngày tải lên: 23/03/2014, 19:20

... Graded con- straints are additionally annotated with a score. The solution of such a partial constraint satisfac- tion problem with scores is the dependency struc- ture of the utterance that ... introduce resource adaptivity into the parsing procedure, and exhibits a high potential for parallelization of the computation. 1 Introduction Usually parsing is understood as a con...

Ngày tải lên: 23/03/2014, 19:20

... with PMCFG also but it has to be approximated with over- generating MCFG and post processing is needed to fil- ter out the spurious parsing trees. We present a parsing algorithm that is incremental, top-down ... approx- imated with an overgenerating context-free grammar. The problem with this approach is that the parser pro- duces many spurious parse trees that have to be filtered o...

Ngày tải lên: 31/03/2014, 20:20