Báo cáo khoa học: "Principle Based Semantics for HPSG" pptx

... Principle Based Semantics for HPSG Anette Frank and Uwe Reyle Institute for Computational Linguistics University of Stuttgart Azenbergstr.12, ... e-mail: uwe@ims.uni-stuttgart.de Abstract The paper presents a constraint based semantic formalism for HPSG. The syntax -semantics inter- face directly implements syntactic conditions on quantifier ... syntactic and semantic p...

Ngày tải lên: 18/03/2014, 02:20

... satisfiability problem for CNF formulas of propositional logic can be reduced to the consistency (or satisfia- bility) problem for formulas in FML. Thus, the consistency problem for formulas in FML ... Greek alpha- bet axe used to stand for arbitrary formulas in FML. The formulas NIL and TOP axe intended to convey gno information z and ~inconsistent in- formation s respect...

Ngày tải lên: 21/02/2014, 20:20

... to build in- formation based services around SMS technology. Today, a majority of SMS based information ser- vices require users to type specific codes to re- trieve information. For example to ... the following three approaches: Human intervention based, Information Retrieval based, or Natural language processing based. Hu- man intervention based systems exploit human communities t...

Ngày tải lên: 08/03/2014, 00:20

... source of computational complexity in previous principle -based parsers. This paper presents a message passing algorithm for principle -based parsing that avoids the overgenera- tion problem. ... -plu (nform norm)), {}> <[i,I], ((cat v) (cform fin) -pas (tense past)), {}> When a node receives an item, it attempts to combine the item with items from other nodes to form ne...

Ngày tải lên: 08/03/2014, 07:20

... semantic object for the phrase. Proponents of com- positionM semantics argue that natural language it- self is for the most part compositional. In addition, using a composition semantics in semantic ... derived for the constituent, but lacking restrictive information associated with any focused components. 2.3 Two-part semantics In addition to p-sets, two semantic expres...

Ngày tải lên: 08/03/2014, 18:20

... IOB tags to them. For the character- based IOB tagger, there is only one possibility for re-segmentation. However, there are multi- ple choices for the subword -based IOB　tagger. For example, “北 ... any OOV detection for the dictionary -based ap- proach. 3.2 Comparisons of Character -based and Subword -based tagger In Section 2.2 we described the character -based and subwor...

Ngày tải lên: 17/03/2014, 04:20

... solu- tion for a NSFS is the same as finding an extension for that theory. INTRODUCTION There have been many suggestions for incorporat- ing defaults into unification -based grammar for- malisms ... defined in terms of information present in the NSFS. FEATURE SYSTEMS Unification -based grammar formalisms use formal objects called feature structures to encode linguis- tic in...

Ngày tải lên: 17/03/2014, 09:20

... none of the versions performs best across the board; their different character- istics might render them better suited either for models or for automatic systems, but not for both at the same time. ... before, the dependency -based evaluation can be approached from different an- gles, leading to differences in performance. This is exemplified in our experiment, where DEPE- VAL(summ) out...

Ngày tải lên: 23/03/2014, 16:21

... Association for Computational Linguistics Feature -based Method for Document Alignment in Comparable News Corpora Thuy Vu, Ai Ti Aw, Min Zhang Department of Human Language Technology, Institute for ... are only suitable for parallel corpora as the measurement is mainly based on structural similarity. One goal of docu- ment alignment is for parallel sentence extraction for...

Ngày tải lên: 24/03/2014, 03:20

... of the Association for Computational Linguistics, pages 634–644, Avignon, France, April 23 - 27 2012. c 2012 Association for Computational Linguistics Character -based Kernels for Novelistic Plot ... its chapters before computing features. We construct one uniformally-random permutation for each test novel. Second, we change the identities of the characters by reassigning the tempor...

Ngày tải lên: 24/03/2014, 03:20