Báo cáo khoa học: "A Decision-Based Approach to Rhetorical Parsing Daniel Marcu" potx

... in order to de- fine such a formalism we have to tackle some issues specific to dependency parsers: • Traditional parsing schemata are used to de- fine grammar-based parsers, in which the parsing process ... head” for the sentence. In order for the algorithm to parse sen- tences correctly, we will need to define D-rules to allow w 0 to be linked to the real sentence head. 3....

Ngày tải lên: 08/03/2014, 01:20

... A STOCHASTIC APPROACH TO SENTENCE PARSING Tetsunosuke FuJisaki Science Institute, IBM Japan, Ltd. No. 36 Kowa Building 5-19 Sanbancho,Chiyoda-ku Tokyo 102, Japan ABSTRACT ... history of natural language understanding work, semantic and pragmatic constraints are known to be indispensable and are recommended to be represented in some formal way and to be referred to ......

Ngày tải lên: 08/03/2014, 18:20

... Parsing structures involving concept-based seeds are retrieved from the repository to train a decision list for NE classification. 3. The learned rules are applied to the NE candidates stored ... 86.7% To benchmark the quality of the automatically constructed corpus (Table 2), the testing corpus is first processed by our parser and then saved into the repository. The reposito...

Ngày tải lên: 20/02/2014, 16:20

... such ques- tions implicitly by proceding to answer the ques- tion or to seek information relevant to formulat- ing an answer. However IS may refuse to accept the question posed by IP because ... pushed onto the discourse stack. [SP2]When IS poses a question to IP, Expand- Question is pushed onto the discourse stack. Once IP begins answering the question, the stack is popped...

Ngày tải lên: 21/02/2014, 20:20

... SThe ruJels may need to be used tecureively to get to a constanL aEvery expression in WML has a type. 4.1.¢ Knowledge Acquisition We have developed two complementary tools to greatly increase ... has a role from A to B (or from B to A) can be referred to by a definite NP. This has not yet been integrated into the Janus model of reference processing [4]. 4.3.2. Metonymy...

Ngày tải lên: 21/02/2014, 20:20

... subsequent modification to the system resulted in over 96 per cent of word tags being correctly assigned automatically. The remaining 3 to ~ per cent were corrected by human post-editors. ~brk is ... newspapers, books and journals; and they also force issues - such as how to incorporate punctuation into the parsing scheme, how to deal with numbered lists and dates in bracke...

Ngày tải lên: 22/02/2014, 09:20

... these cytochromes have been proposed to be ter- minal Fe(III) and Mn(IV) reductases, although their role in the reduction of other metals is less well understood. To obtain more insight into this, we ... Journal compilation ª 2007 FEBS A kinetic approach to the dependence of dissimilatory metal reduction by Shewanella oneidensis MR-1 on the outer membrane cytochromes c OmcA and OmcB J...

Ngày tải lên: 07/03/2014, 09:20

... op- eration. 3 http://www.extractor.com/ 928 Today, graph-based text representations are be- coming increasingly popular, due to their abil- ity to enrich the document model with syntactic and semantic relations. Salton ... weighted average of two “parent” vectors according to (Vignaux and Michalewicz, 1991). Formally, a new vector v will be created from two vectors v 1 and v 2 accordin...

Ngày tải lên: 07/03/2014, 22:20

... in bootstrapping to evaluate the quality of the pat- terns automatically. IE and QA approaches, due to uniqueness assumptions of the real-world rela- tions that these methods search for, have an auto- matic ... according to their dis- tributional similarity to the nouns “method” and “model”. Subsequently, the noun “method” is used to find transitive verbs and rank them according to...

Ngày tải lên: 08/03/2014, 02:21

... presented here aims to address this problem. Our model provides an enabling foun- dation toward a linguistic approach by first shift- ing to a two-dimensional CFG framework. This permits us to construct ... 1078 Vancouver Computer 2002 1130 Victoria Phone 2001 818 Victoria Phone 2002 894 Victoria Computer 2001 968 Victoria Computer 2002 1024 Location Type Time Vancouver Victoria Phone...

Ngày tải lên: 08/03/2014, 02:21