Báo cáo khoa học: "A Noisy-Channel Approach to Question Answering" docx

... 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 in the repository. 4. The proper names tagged ... 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 reposi...

Ngày tải lên: 20/02/2014, 16:20

... [SP1]When IP asks a question of IS, Answer- Question and Accept-Questlon are pushed onto the discourse stack. [SP2]When IS poses a question to IP, Expand- Question is pushed onto the discourse ... IP asks a question of IS, IS is first expected to accept the question, either implicitly or expllcltly, and then answer the question. Upon posing a question to ~P, IS is...

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 ... acquisition. KNACQ presents the user with a few questions and menus to elicit the English expressions used to refer to. that concept or role. To illustrate the kinds of informa...

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 ... programs was devised to automatically produce a single level of grammatical description with one word tag representing the word class or part of speech of each word token in the c...

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

... 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. 3.3 ES99 (Eisner and Satta, ... inference rules. However, 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 gram...

Ngày tải lên: 08/03/2014, 01:20

... 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

... match at all. But full NLP is too slow for this application, and partial matches do seem to be useful to its users, i.e. do seem to lead to licensing of photos. Using the output of the part-of-speech ... abbrevia- tions and other variant forms, e.g. Washington D.C.; Washington, DC; Washington, District of Columbia; Washington DC; Washington, D.C.; DC; and D.C. Some superunits...

Ngày tải lên: 08/03/2014, 05:21