Báo cáo khoa học: "AN ENVIRONMENT FOR ACQUIRING SEMANTIC INFORMATION" pptx

... AN ENVIRONMENT FOR ACQUIRING SEMANTIC INFORMATION Damaris M. Ayuso, Varda Shaked, and Ralph M. Weischedel BBN Laboratories ... representation formalism with limited inferencing capabilities, 3) assumes a trained person but not an AI expert, and 4) provides a complete environment for not only acquiring semantic knowledge, ... lexical information. This includes morpholog...

Ngày tải lên: 08/03/2014, 18:20

... Hirst (2006) for an ex- tensive review). For instance, Rada et al. (1989) traverse MeSH, a term hierarchy for indexing ar- ticles in Medline, and compute semantic related- ness straightforwardly ... research in NLP using Wikipedia 1 . 2 Measures of Semantic Relatedness Approaches to measuring semantic relatedness that use lexical resources transform these resources into a network...

Ngày tải lên: 20/02/2014, 12:20

... serve as generative models for parallel bilingual sentences with weak order constraints. Focusing on Wans- duction grammars for bracketing, we formu- late a normal form, and a stochastic version ... a normal form trans- duction grammar, so a! = 0 for all f # 2. The A- productions used were: A ~-* AA A b(&~) z/v A b~O x/e A ~%~) e/V for all z, y lexical translations for...

Ngày tải lên: 20/02/2014, 22:20

... algorithm is given no information whatsoever about the phonemic transcription .used, and even though cognate identification is carried out on the basis of a context-free one -for- one matching ... mata/nas. We base no information about the phonetic values of their constituent characters, we do not know whether the same system of transcription was used in both wordllsts: for all...

Ngày tải lên: 21/02/2014, 20:20

... prepositions and if there are how the process of their word formation should be accounted for as their characteristics are not as straight forward as it is expected from other compound categories. ... 4.4 Semantic Argumentation Close semantic observation of these constructions reveal that the nouns in the above mentioned combinations are special kind of nouns with particula...

Ngày tải lên: 08/03/2014, 02:21

... neither for a vision system nor for a knowledge-based system is it without costs to determine all descriptors of a certain object - especially for the vision system, the computational effort ... provider for object descriptors and the lexical expression by which the chosen descriptors is ultimately realized. Motivated by this deficit, we present a new algorithm that (1) allows...

Ngày tải lên: 08/03/2014, 21:20

... aspectual information for verbs; and copulas, support expressions, and slot filling information for nouns and adjectives. • The “Other” layer, containing special cases such as null arguments. The semantic ... con- tain information about support expressions (verbs and prepositions), copulas, null arguments, slot- fillers, and aspectual particles. This information can for example be used...

Ngày tải lên: 08/03/2014, 21:20

... must be coupled to the form of the situations that it can deal with. For illustration, consider an instance of the ubiquitous type hierarchies of semantic networks: FORDS I subtype MUSTANGS ... question "What's in a semantic network?" Ever since Woods's [1975] "What's in a Link" paper, there has been a growing concern for formalization in t...

Ngày tải lên: 21/02/2014, 20:20

... that the LinguaStream platform promotes the combination of purely declarative formalisms (when GATE is mostly based on the JAPE language and NOOJ focuses on a unique formalism), and allows processing ... analy- sis models and methodological concerns. Finally, when other platforms usually enforce the use of a dedicated document format, LinguaStream is able to process any XML document. On the o...

Ngày tải lên: 22/02/2014, 02:20

... Association for Computational Linguistics, pages 19–24, Jeju, Republic of Korea, 8-14 July 2012. c 2012 Association for Computational Linguistics NiuTrans: An Open Source Toolkit for Phrase-based ... of minimum error rate training that allows for various evaluation metrics for tuning the system. In addition, the toolkit provides easy-to-use APIs for the development of new fe...

Ngày tải lên: 19/02/2014, 20:20