Báo cáo khoa học: "ACCOMMODATING CONTEXT CHANGE" ppt

... ABSTRACT Two independent mechanisms of context change have been discussed separately in the literature - context change by entity introduction and context change by event simulation. Here ... Mechanisms of Context Change Computational Linguistics research has recognized two independent mechanisms of context change. The first to have been recognized might be called cont...

Ngày tải lên: 31/03/2014, 06:20

... lexicon. We assume that environmental conditions identify a context C C O. The speaker selects one object as the topic of this context fs E C. He signals this topic using extra-linguistic ... Note also that there may be objects identified by lexicon lookup which are not in the initial context C. They are added to the matrix, but their object- score is 0.0. The final state of an

Ngày tải lên: 20/02/2014, 18:20

... restriction class (A) is strongly context- free. Proof. We construct a context- free grammar with exactly those rules in the finite set of instantiations of the CCG rule schemata along with context- free rules ... (6-8), we construct a context- free rule C ′ 3 → C ′ 1 , C ′ 2 for each C ′ i in S(C, C i ) for 1 ≤ i ≤ 3. Similarly, for each rule schema C 1 → C 2 in (10), we construct a con...

Ngày tải lên: 20/02/2014, 04:20

... context- free rewriting systems and multicomponent tree ad- joining grammars [6] generate the same string lan- guages. The multiple context- free grammars of [7] are equivalent to linear context- free ... to context- free hypergraph grammars and their relationship to deterministic tree-walking automata. from the fact that multiple context- free grammars are exactly that subclass o...

Ngày tải lên: 20/02/2014, 21:20

... Fast Context- Free Parsing Requires Fast Boolean Matrix Multiplication Lillian Lee Division of Engineering ... would yield a fast, practical BMM algorithm, which is not believed to exist. 1 Introduction The context- free grammar (CFG) formalism was developed during the birth of the field of computational ... parsing, since it explicitly relies on the properties of TAGs that allow...

Ngày tải lên: 31/03/2014, 21:20

... within unannotated genome data from organisms such as P. falciparum and their visualization in the context of the relevant metabolic network(s) [60]. The sharkhunt package can be downloaded from

Ngày tải lên: 18/02/2014, 16:20

... Symbols and Contextual Symbols. 1. Control Symbols — MT symbols which, coded into the machine memory, control cer- tain steps in the translation process. Since they are not contextual symbols, ... dollar sign, a punctuation mark, a single space. Contextual symbols consist of Input Symbols and Output Symbols. 3. Input Symbols include all contextual sym- bols that may appear in a...

Ngày tải lên: 19/02/2014, 19:20

... implicature, anaphora, rhetorical relations and scope ambiguity take an extended meaning in the context of multimodal discourse. It is an important goal of this research not simply to merge ... projects (Wahlster et al. 1991). The task of the knowledge-based presentation system WIP is the context- sensitive generation of a variety of multimodal communications from an input includ...

Ngày tải lên: 20/02/2014, 21:20

Ngày tải lên: 21/02/2014, 20:20

Ngày tải lên: 21/02/2014, 20:20