Báo cáo khoa học: "Deriving Generalized Knowledge from Corpora using WordNet Abstraction" pdf

... – 3 April 2009. c 2009 Association for Computational Linguistics Deriving Generalized Knowledge from Corpora using WordNet Abstraction Benjamin Van Durme, Phillip Michalak and Lenhart K. Schubert Department ... exploring knowledge extraction and WordNet should go beyond the heuristics employed in re- cent work. 2 KNEXT Schubert (2002) presented an approach to ac- quiring gene...

Ngày tải lên: 24/03/2014, 03:20

... the arc from D to E.) We seek a better alignment scheme, in which the score S(D, D') could benefit from S(A, A'). We are willing to pay a small penalty to collapse the path from ... generate a target language parse tree from their set of right-hand sides, which is a transla- tion of the source tree. This technique resembles work on NIT using synchronous Tree-Adjoi...

Ngày tải lên: 23/03/2014, 19:20

... reports the first part of a project that aims to develop a knowledge extrac- tion and knowledge discovery system that extracts causal knowledge from textual da- tabases. In this initial study, we develop ... developing knowledge extraction and knowl- edge discovery programs that automatically ex- tract and acquire knowledge about a domain by integrating information from multiple...

Ngày tải lên: 31/03/2014, 04:20

... empirically attested in corpus data. We automatically acquire alternating verbs from large balanced corpora by using partial- parsing methods and taxonomic information, and discuss how corpus ... of length 2 and 3 which were extracted from the parser's output 2 and compared against a compound noun dictionary (48,661 entries) com- piled from WordNet. 13.9% of the noun seq...

Ngày tải lên: 20/02/2014, 19:20

... method for automatically cre- ating such a word list from glosses (i.e., definition or explanation sentences ) in a dictionary, as well as from a thesaurus and a corpus. For this purpose, we use ... semantically oriented. Wiebe (2000) used a learning method to collect sub- jective adjectives from corpora. Riloff et al. (2003) focused on the collection of subjective nouns. We later compa...

Ngày tải lên: 20/02/2014, 15:20

... Ads on the Web Ecological studies (e.g. using Google AdWords) of- fer a possible solution to the following problems: 1. Time consuming activities: apart from experi- mental design and setup, all ... fast and fully-automated evaluation experiments, in particular using the ACE tool. This tool - released in late 2010 - allows testing, from a marketing perspective, if any change made to a...

Ngày tải lên: 07/03/2014, 18:20

... bojana.dalbelo, sasa.petrovic, ivan.sikiric}@fer.hr Abstract Automatic extraction of collocations from large corpora has been the focus of many re- search efforts. Most approaches concentrate on improving ... collocations that are of- ten not found in dictionaries, automatic extraction of collocations from large textual corpora has been the focus of much research in the last decade; s...

Ngày tải lên: 08/03/2014, 01:20

... introducing a dependence structure that learned from training data. Cao et al. (2005) proposed a novel dependence model to incorporate both re- lationships of WordNet and co-occurrence with the language ... centroid words were learned from the returned snippets of a web search engine. In the future, we are interested in enhancing the centroid learning using human knowledge sou...

Ngày tải lên: 23/03/2014, 18:20

... ALIGNING SENTENCES IN BILINGUAL CORPORA USING LEXICAL INFORMATION Stanley F. Chen* Aiken Computation Laboratory Division of Applied ... requires time linear in the length of the deletion. 4 Results Using this algorithm, we have aligned three large English/French corpora. We have aligned a cor- pus of 3,000,000 sentences (of ... aforementioned for checking the aligmnents produc...

Ngày tải lên: 31/03/2014, 06:20

... therefore shows the co-occurrence patterns of both. Apart from the particular choice of features, what distinguishes our approach from most others is that we do not cluster the words (columns) ... selective, i.e. they occa- sionally allow for words from other clusters. 4 Results As our test vocabulary we chose a sample of 50 words taken from a previous study (Rapp, 2005). The...

Ngày tải lên: 20/02/2014, 12:20