Báo cáo khoa học: "Entity-based local coherence modelling using topological fields" ppt

... 11-16 July 2010. c 2010 Association for Computational Linguistics Entity-based local coherence modelling using topological fields Jackie Chi Kit Cheung and Gerald Penn Department of Computer Science University ... discussing possible reasons for the utility of topological fields in lo- cal coherence modelling. 2 Background and Related Work 2.1 German Topological Field Parsing...

Ngày tải lên: 23/03/2014, 16:20

... than a state-of-the-art coherence model. 1 Introduction A key requirement for any system that produces text is the coherence of its output. Not surprisingly, a variety of coherence theories have ... Furthermore, coherence con- straints are often embedded in complex representa- tions (e.g., Asher and Lascarides, 2003) which are hard to implement in a robust application. This paper focu...

Ngày tải lên: 20/02/2014, 15:20

... of noisy candidate instances using hand-coded pat- terns, and ranks the instances by using a sim- ple ranking model. The Expander expands and ranks the instances using evidence from semi- structured ... their instances by using “concept signatures” (statistics on co-occuring instances). Pasca (Pasca, 2004) presented a method for acquiring named entities in arbitrary categories using...

Ngày tải lên: 08/03/2014, 00:20

... April 2009. c 2009 Association for Computational Linguistics Learning to Interpret Utterances Using Dialogue History David DeVault Institute for Creative Technologies University of Southern ... situations, we present a sys- tem that tracks contributions to a referential com- munication task using an abductive interpretation 184 model: see Section 2. A user study with this sys- tem, descr...

Ngày tải lên: 08/03/2014, 21:20

... and ¨ Ozg¨ur and Radev (2009) propose scope detectors using the BioScope corpus. Councill et al. (2010) present a supervised scope detector using their own annotation. Some NLP applications deal ... err k is the error made using set k and σ d =  err i (1−err i ) ins + err j (1−err j ) ins . 7 Conclusions In this paper, we present a novel way to semantically represent negation using f...

Ngày tải lên: 30/03/2014, 21:20

... ENHANCING EXPLANATION COHERENCE WITH RHETORICAL STRATEGIES MARK T. MAYBURY Rome Air Development Center Intelligent ... F- 111 E) ((NOTEQ F-111E (QUOTE F-4G)))))) Figure 2. Audit Trail of One reason the text lacks coherence is because it fails to specify precise relationships among introduced entities. This ... the explanation. Therefor, there is a need not only for linguistic pr...

Ngày tải lên: 22/02/2014, 10:20

... simulated annealing using torsion angle dynamics. The 20 conformers with the lowest final cyana target function values were selected and subjected to 2000 steps of energy minimization using the generalized ... green) and 162–168 (Fig. 2, pink) which have higher than average rmsd values. All these loops are topologically located in the same region of the protein which also corresponds to th...

Ngày tải lên: 14/03/2014, 23:20

... sentences should be processed. 273 2 FOCUS TRACKING Our focusing algorithm is based on Sidner's fo- cusing algorithm for tracking local and actor foci (Sidner 1979; Sidner 1983). 3 In each ... CORRECTING ILLEGAL NP OMISSIONS USING LOCAL FOCUS Linda Z. Suri 1 Department of Computer and Information Sciences University of ... Grosz, Joshi had Weinstein (1983) use the notion o...

Ngày tải lên: 17/03/2014, 08:20

... improve- ments in performance over the entity grid, a popular model of local coherence. 1 Introduction Models of discourse coherence describe the relation- ships between nearby sentences, in which ... models from the literature and applying them to coherence modeling. Our first model distinguishes discourse-new from discourse-old noun phrases, using features based on Uryupina (2003)....

Ngày tải lên: 23/03/2014, 17:20

... residues involved in the binding of its ligands are well conserved. Structure modelling of the T. brucei enzyme using the available S. cerevisiae structures as templates indicated that there are ... cerevisiae enolase and with the natural enzyme in a cytosolic fraction of T. brucei. Structure modelling, using available three- dimensional enolase structures, showed that some atypical re...

Ngày tải lên: 23/03/2014, 21:20