Báo cáo khoa học: "Deriving Transfer Rules from Dominance-Preserving Alignments" doc

... riving transfer rules from this alignment. Each transfer rule consists of a pair of tree fragments derived by "cutting up" the source and target trees. A set of transfer rules whose ... time. 4 Acquiring Transfer Rules This section describes the procedure for deriving transfer rules from aligned parse trees. First, the best-scoring alignment is recovered...

Ngày tải lên: 23/03/2014, 19:20

... Novischi, 2002). LexPar Rules are generated from the publicly available LexPar database. We generated unary rules from each LexPar rule based on a manually constructed mapping from FrameNet grammatical functions ... entailment rules solely from the information contained in FrameNet. Our experiment showed that FRED’s rules perform substantially better than LexPar, the only prio...

Ngày tải lên: 17/03/2014, 00:20

... distance towards the root from the given sense as the average distance from the dom- inated senses to the derived type restriction. In the case where going this far from an alternative sense ... general world knowledge from text corpora based on parsing sentences and mapping syntactic forms into logical forms (LFs), then gleaning simple propositional factoids from these LFs through...

Ngày tải lên: 24/03/2014, 03:20

... perfection of the trained rules; rather, we require that rules reach a certain level of success. For rules that disambiguate the first element (except the default disambiguation rules) , we require ... parser rules can refer only to limited aspects of the current parser state. Rules can mention the grammatical category of the constituents in the buffer and the current incomp...

Ngày tải lên: 31/03/2014, 18:20

... comparative sentences from text documents. This paper first investigates many comparative sentences referring to pre- vious studies and then defines a set of compar- ative keywords from them. A sentence ... is one of the features from the sentence of Ex2 in section 3.1. 5 Experimental Results Three trained human annotators compiled a cor- pus of 277 online documents from various...

Ngày tải lên: 20/02/2014, 09:20

... instances), from the TimeBank corpus annotated in TimeML (Pustejovky et al., 2003). The non- WSJ articles (mainly political and disaster news) include both print and broadcast news that are from ... two peaks in this distribution. One is from 5 to 7 in the natural logarithmic scale, which corresponds to about 1.5 minutes to 30 minutes. The other is from 14 to 17 in the natural l...

Ngày tải lên: 20/02/2014, 12:20

... (H ij |E H ij ) is then trained using logistic regression, predicting the noun-pair hypernymy label from WordNet from the feature vector of lexico-syntactic patterns. The hypernym classifier described above ... classifier that predicts P (C mn ij |E C ij ), predicting the Word- Net class labels from the single similarity score derived from the noun pair’s cluster similarity. 3.3 Details...

Ngày tải lên: 20/02/2014, 12:20

... importance of term transliteration can be realized from our analysis of the terms used in 200 qualifying sentences that were randomly selected from English-Chinese mixed news pages. Each qualifying ... 15,822,984 pages, which was collected from the Internet using a web spider and was converted to plain text, was used as a training set. This corpus is called SET1. From SET1, 80...

Ngày tải lên: 17/03/2014, 06:20

... Learning Tense Translation from Bilingual Corpora Michael Schiehlen* Institute for Computational Linguistics, University ... Fortunately, the task can be (partly) automated if the tables associating words with biases are learned from a corpus. Statistical approaches also support empirical evaluation of different disambiguation ... (analytic tenses). 2 Words Are Not Enough Often, s...

Ngày tải lên: 31/03/2014, 04:20

... between the electron transfer rate from flavin to heme (30 s )1 ) and that from heme to cytochrome c ( 1500 s )1 ). After the electron is loaded from flavin to heme, it is transferred to cytochrome ... recombinant WT and the slow electron transfer mutant F166Y. The presteady-state electron transfer from flavin to heme was halved in F166Y compared with WT. This was expected from...

Ngày tải lên: 19/02/2014, 18:20