Báo cáo khoa học: "A Semantic Approach to IE Pattern Induction" ppt

... paper just seven semantic classes were sufficient to annotate the corpus. 3.3 Learning Algorithm This pattern similarity measure can be used to create a weakly supervised approach to pattern acquisition following ... of expert labour to modify for a new extraction task. One approach to this problem is to use machine learning to automatically learn the domain-specific inf...

Ngày tải lên: 23/03/2014, 19:20

... additional pieces of the L-Spec to be translated into surface structure. Our methodology relies on the systemic network traversal to spawn realiza- tions of the decomposed subpieces. The syntac- ... ing the more traditional logical form into smaller pieces which reference each other. Mumble-86 must be told which of these pieces is the embedded piece that the processing should star...

Ngày tải lên: 31/03/2014, 06:20

... of tables to restaurant customers. Assume a restaurant with a sequence of tables, and customers who walk into the restaurant one at a time and choose a table to join. The first customer to enter ... Computational Linguistics A Bayesian Approach to Unsupervised Semantic Role Induction Ivan Titov Alexandre Klementiev Saarland University Saarbr ¨ ucken, Germany {titov|aklement}@mmci.u...

Ngày tải lên: 17/03/2014, 22:20

... concept vector in concept vector space, and the overall text vector was made up of those concept vectors. The semantic im- portance of concepts and words was normalized ac- cording to the overall ... composing the text concept vector, the part that vector C 1 contributes to a text vector is x, and the part that vector C 2 contributes is y. By expanding the vector space property, the wei...

Ngày tải lên: 23/03/2014, 19:20

... 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 in the repository. 4. The proper ... into several orthogonal views. In case of NE classification, usually one view uses the context evidence and the other relies on the lexicon evidence. Learners corresponding to diffe...

Ngày tải lên: 20/02/2014, 16:20

... one believes IS wants hls/her children to be bused, or perhaps even walk, to day-care directly from school. 2. Shared Beliefs Shared beliefs of facts, beliefs which the listener believes ... if IP believes I3 might believe that the starting date for the AS conference is in February. Recourse to such a belief model is necessary in order to allow for Yes-No questions to w...

Ngày tải lên: 21/02/2014, 20:20

... table of semantic classes for the operators dis- cussed earlier is provided in Figure 3. Though the logical form for ~e carriers, all carriers, some carriers, a carrier, and carriers (both ... cases of metonymy in the following way: 1. Wherepatterns of metonymy can be identified,, such as using a description of a part to refer to the whole (and other patterns identified in [17])...

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 ... containing about 2,000 word tokens of written British ~hglish published in a single year (1961). The 500 text samples fall into 15 different text categories representing a variety o...

Ngày tải lên: 22/02/2014, 09:20

... behavior patterns in terms of kinetics; and (d) OmcB is required to obtain functional OmcA. These possibilities are discussed below. A heme-staining approach was used to reveal the decaheme cytochrome ... Laboratory Manual, 2nd edn. Cold Spring Harbor Laboratory Press, Cold Spring Harbor, NY. 26 Shi L, Lin JT, Markillie LM, Squier TC & Hooker BS (2005) Overexpression of multi-heme C...

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 ... methods are di- vided into three main categories—structure-, vec- tor-, and graph-based—according to the text rep- resentation model, and each category is divided...

Ngày tải lên: 07/03/2014, 22:20