Tài liệu Báo cáo khoa học: "Faster Parsing by Supertagger Adaptation" pptx

... not a perfect supertagger these other categories may in fact have been incorrect, and so supertagger accuracy goes down, without changing parsing results. Here we have allowed the supertagger to ... analy- sis cannot be found by the parser, the number of lexical categories supplied by the supertagger is increased. The supertagger- parser interaction in- fluences speed in two way...

Ngày tải lên: 20/02/2014, 04:20

... transformation based seman- tic parsing by presenting a tree transducer model and drawing connections to other similar systems. We make a further contribution by bringing to tree transducers ... sentences. Most semantic parsing models rely on an assump- tion of structural similarity between MR and NL. Since strict isomorphism is overly restrictive, this assumption is often relaxed by...

Ngày tải lên: 19/02/2014, 19:20

Ngày tải lên: 20/02/2014, 18:20

... VT. We may improve the analysis somewhat by observing that when parsing dl dn, the CKY algorithm only considers nonterminals of the form A[di]; by restricting to the relevant pro- ductions ... are guaran- teed by (b), by induction, and the correctness of the acceptance condition (see caption) follows. This declarative specification, like CKY, may be implemented by bottom-...

Ngày tải lên: 20/02/2014, 19:20

... yields only the preferred structure. The actual output of the parsing system can be found in Appendix II. 3. The Parsing System The parsing system we use is a shift-reduce purser. Shift- reduce ... automatically from a context-free grammar by the standard al- gorithm [Aho and Johnson, 1974]. The parsing alogrithm differs, however, from the standard LALR(1) parsing algorith...

Ngày tải lên: 21/02/2014, 20:20

... user. I will begin by discussing the range of non-fluencies that occur in speech. Then, after reviewing the notion of deterministic parsing, I will describe the model of parsing self-corrections ... constituent), and would be expunged by the Category or the Stack Editors (as in 7a). However. the string that is expunged by the Surface Copy Editor need not be dominated by a sing...

Ngày tải lên: 21/02/2014, 20:20

... research that are relevant to our work: work on parsing (written and spoken) discourse, and work on plan-based dialog models. Discourse Parsing Discourse parsing is the pro- cess of building a hierarchical ... con- siderable work on discourse parsing using statisti- cal bottom-up parsing (Soricut and Marcu, 2003), hierarchical agglomerative clustering (Sporleder and Lascarides, 2004...

Ngày tải lên: 22/02/2014, 02:20

... we L(G). This is done by recovering (partial) analyses for substrings of w and by combin- ing them. More precisely, the algorithm factorizes analyses of derived trees by employing a specific ... the input string is parsed with respect to this set of trees. Another paper by Schabes and Joshi (1989) shows how parsing strategies can take advantage of lexicalization in order to...

Ngày tải lên: 22/02/2014, 10:20

... calcium binding to the annexin protein. As pro- posed by Gerke and Moss [56], this would provide an elegant mechanism, whereby calcium binding by an annexin protein not only promotes its association ... conformational distribution is adopted by calcium-free S100 proteins. Proteins 73, 28–42. 46 Harder T & Gerke V (1993) The subcellular distribution of early endosomes is affected by...

Ngày tải lên: 18/02/2014, 14:20

... simulta- neously. In scheme 9 (Fig. 2C), it is easy to see that J 6 can be compensated by J 2 , J 7 by J 3 , J 8 by J 4 and J¢ by J 9 . In the supplementary material a description is given how activation ... systems. Van’t Hoff’s rule states that reaction rates increase by a factor (the Q 10 )of two or more when the temperature is increased by 10 °C [1]. Despite this strong influen...

Ngày tải lên: 19/02/2014, 02:20