Báo cáo khoa học: "A Comparative Study on Generalization of Semantic Roles in FrameNet" ppt

... the training data. 4.3 Semantic type of phrases We consider that the selectional restriction is help- ful in detecting the semantic roles. FrameNet pro- vides information concerning the semantic ... relations among roles FrameNet defines hierarchical relations among frames (frame-to-frame relations). Each relation is assigned one of the seven types of directional relationships...

Ngày tải lên: 17/03/2014, 01:20

... length of 30 words. Table 3 shows the training and test corpus statistics. 5 Evaluation in Training In this section, we will investigate for each of the constraints the coverage of the training ... con- straints in detail. The first constraints are based on inversion transduction grammars (ITG) (Wu, 1995; Wu, 1997). In the following, we will call these the ITG constraints. The...

Ngày tải lên: 17/03/2014, 06:20

... satisfaction. An- other benefit of RL is that it can be trained using either real or simulated users and continue to learn and adapt with each interaction (in the case of on- line learning). To ... simulates interactions. Learning or model- free algorithms only use training examples from previous interactions with the environment and that is the main difference of these two categories...

Ngày tải lên: 17/03/2014, 22:20

... number of non-zero features after estima- tion, number of training iterations, and computation time (in minutes of elapsed time on an XEON TM MP 3.6GHz machine). 3.1 Parse re-ranking We ... orthant containing the current point and into which the direction giving the greatest local rate of function decrease points. This algorithm, although only a simple modifi- cation of L...

Ngày tải lên: 08/03/2014, 02:21

... Combining Outputs from Machine Translation Systems. In Proceeding of EMNLP. Hawaii, US, Oct. F. Huang and K. Papinent. 2007. Hierarchical System Combination for Machine Translation. In Proceed- ings ... alignments, and then continuously add new links between backbone and hypothesis if and only if both of the two words of the new link are un- aligned and this link exists in...

Ngày tải lên: 17/03/2014, 01:20

... time of the contaminating hydrazone was consistent with the impurity in the l-lactaldehyde preparation being acetone or propionaldehyde (as shown by comparison with the hydra- zones of acetone ... for 72 h. Concentrations of inhib- itor causing a 50% reduction in growth (EC 50 ) were deter- mined using the following two-parameter equation by nonlinear regression using grafit: y ¼ 10...

Ngày tải lên: 23/03/2014, 06:20

... used in earlier studies. Dif- ferences in assay conditions or the presence of a histi- dine tag on the longer N-terminus of TbTDPX3 might also be contributing factors. Nonetheless, in terms of ... mutagenesis of TDPX1. The initiator and terminator codons are in bold and the restriction sites are underlined. The codons of the mutated amino acids are in bold. Cloned protei...

Ngày tải lên: 23/03/2014, 07:20

... Proceedings of the 50th Annual Meeting of the Association for Computational Linguistics, pages 100–104, Jeju, Republic of Korea, 8-14 July 2012. c 2012 Association for Computational Linguistics A Comparative ... Comparison of the dependencies of the English sentences in the training data. Without () = % of similar root words; with () = % of similar head words. 2008). In t...

Ngày tải lên: 30/03/2014, 17:20

... thesauri and model combination for bilingual lexicon extraction. In International Conference on Computational Lin- guistics, COLING’02. A. P. Dempster, N. M. Laird, and D. B. Ru- bin. 1977. Maximum ... corpora. In Proceeding of the Conference on Content-Based Multimedia Information Ac- cess (RIAO). Pascale Fung. 2000. A statistical view on bilingual lexicon extraction - from paral...

Ngày tải lên: 31/03/2014, 03:20

... of the filtering step in regard to the coverage of our corpus by the dictionary. 2.3 Second step: Detection of synonymous candidate terms Assuming that the semantics and the synonymy of ... preserves semantic relation. For instance, in graph theory, the link (arbre (tree) / feuille (leaf)) can be inferred from the meronyny in- formation of general dictionary. Thos...

Ngày tải lên: 23/03/2014, 19:20