Báo cáo khoa học: "PERSPECTIVES ON PARSING ISSUES" pdf

... PERSPECTIVES ON PARSING ISSUES Christopher K. Riesbeck Yale University COMPUTATIONAL PEESPECTT VE IS IT USEFUL TO DISTINGUISH PARSING FROM INTERPRETATION? Since most of this position paper ... separation of parsing from interpretation, let me first make it clear that I do believe in syntactic knowledge. In this I am more conservative than other researchers in interpretation...

Ngày tải lên: 24/03/2014, 01:21

... questions that appear below. The questions are loosely grouped in three sections. The first concentrates on the computational aspect, the second on the linguistic aspect, and the third on their ... in connection with parsing natural language input. This panel addresses those issues from both computational and linguisric perspectives. Each panelist has submitted a position paper...

Ngày tải lên: 24/03/2014, 01:21

... label arcs in dependency representations (Nivre and Nilsson, 2005). By contrast, there is very little work on parsing methods that allow discontinuous constructions to be represented directly in ... weakly connected, which entails that the corresponding undirected graph is con- nected, w hereas a strongly connected graph has a directed path between any pair of nodes. 74 (“Only one of them...

Ngày tải lên: 22/02/2014, 02:20

... to conformational differences between the two proteins. The relative cross-reactivity of poly- clonal antibodies was used to probe the conforma- tional variations at the tertiary level among ... conditions, coordinate a [2Fe–2S] clus- ter. However, based upon the in vitro reconstitution assay, both were found to be [4Fe–4S] cluster coordi- nating proteins. Iron–sulfur clusters are one ... dif...

Ngày tải lên: 18/02/2014, 12:20

... stack. 2.1 Classification Transition-based dependency parsing reduces parsing to consecutive multiclass classification. From each configuration one amongst some prede- fined number of transitions has to be ... using confidence-weighted learn- ing. 2 Transition-based parsing Transition-based parsing builds on the idea that parsing can be viewed as a sequence of transitions between state...

Ngày tải lên: 20/02/2014, 04:20

... and semantics. Our experiments on question/answer classification show that the above models highly improve on bag-of-words on a TREC dataset. 1 Introduction Question Answering (QA) is an IR task ... Papers (Companion Volume), pages 113–116, Columbus, Ohio, USA, June 2008. c 2008 Association for Computational Linguistics Kernels on Linguistic Structures for Answer Extraction Alessandro...

Ngày tải lên: 20/02/2014, 09:20

... International Conference on Computational Linguistics and 44th Annual Meeting of the ACL, pages 833–840, Sydney, July 2006. c 2006 Association for Computational Linguistics Japanese Dependency Parsing ... meth- ods: information about dependency rela- tions among the case elements of a verb, and information about co-occurrence re- lations between a verb and its case ele- ment. This inform...

Ngày tải lên: 20/02/2014, 12:20

... model on 1 mil- lion words of the Penn Treebank, then performing a single pass of Expectation Maximization (EM) on a further 1.2 million words. 6 Conclusions In this work we present an adaptation ... Section 3. Sec- tion 4 is a description of current evaluation metrics, and suggestions for new metrics. Experiments on strings and word lattices are reported in Section 5, and conclusions a...

Ngày tải lên: 20/02/2014, 15:21

... programming environment offers a convenient yet challenging extension of work already being done with database query. First I recite some of the merits of continuing research on natural language ... language. How much these cross-linguistic concerns ought to affect the construction of a particular system is itself one of the questions deserving of atten- tion, but our experience to da...

Ngày tải lên: 21/02/2014, 20:20

... deviation in the input if the continuation were to produce a complete parse' without finding any more deviation. Continuations with a lower flexibility are run before continuations with ... first continuation fails since there is no subsuming entity, and so the second continuation gets a chance to run. Instead of insisting on identifyir,g a single top-level entity, this second co...

Ngày tải lên: 21/02/2014, 20:20