Báo cáo khoa học: "Sub-sentential Alignment Using Substring Co-Occurrence Counts" ppt

... improve the alignment but this is not part of the present study. The alignment models produced are asymmet- ric and several heuristics exist to combine direc- tional word alignments to improve alignment ... Distributional Similarity Based on Word Alignment The alignment approach to synonym extraction is based on automatic word alignment. Context vec- tors are built from the alignme...

Ngày tải lên: 20/02/2014, 12:20

... proposes an approach to im- prove word alignment for languages with scarce resources using bilingual corpora of other language pairs. To perform word alignment between languages L1 and L2, ... word alignment when only a small-scale domain- specific bilingual corpus is available. This paper proposes an approach to improve word alignment for languages with scarce re- sources usin...

Ngày tải lên: 20/02/2014, 12:20

... Greece, 30 March – 3 April 2009. c 2009 Association for Computational Linguistics An Alignment Algorithm using Belief Propagation and a Structure-Based Distortion Model Fabien Cromi ` eres Graduate ... to review the many alignment systems that have already been proposed, we will shortly refer to works that share some similarities with our approach. In particu- lar, the first alignment...

Ngày tải lên: 22/02/2014, 02:20

... proteins were collected onto glass fiber filters using a cell harvester, washed with 5% trichloroacetic acid (w/v), and radioactivity was counted using a liquid scintil- lation counter. Background ... was determined by UV spectroscopy, using an extinction coefficient of 10 280 M )1 Æcm )1 [22]. AAP concentrations were also determined spectrophotometri- cally using an extinction coefficien...

Ngày tải lên: 19/02/2014, 12:20

... word alignment that uses synonym information as a regularization term. The experimental results show that our proposed method significantly improves word alignment quality. 1 Introduction Word alignment ... word 137 Figure 1: Graphical model of HM-BiTAM alignment quality. 2 Bilingual Word Alignment Model In this section, we review a conventional gener- ative word alignment model, H...

Ngày tải lên: 20/02/2014, 04:20

... 1999), using a polynomial kernel with degree 4 and additive term 1. As a baseline, we trained and tested a model using only the lexical-matching features. We then trained and tested models using ... 10598 {dbikel,vittorio}@us.ibm.com Abstract This paper describes a novel event-matching strategy using features obtained from the tran- sitive closure of dependency relations. The method y...

Ngày tải lên: 20/02/2014, 09:20

... original sentence order (OSO). We also mea- sure the quality of the proposed documents using TAU and BLEU, using as reference the OSO. In Table 1, we report the performance of four search algorithms. ... non-hierarchical representations of discourse, and can be trained with minimal human intervention, using large col- lections of existing human-authored documents. These models are attra...

Ngày tải lên: 20/02/2014, 12:20

... different in for- malism, model the two languages using tree-based transduction rules or a synchronous grammar, pos- sibly probabilistic, and using multi-lemma elemen- tary structures as atomic ... that parallel trees over-constrained the alignment problem, and achieved better results with a tree-to-string model than with a tree-to-tree model using two trees. In a different approac...

Ngày tải lên: 20/02/2014, 15:20

... problems caused by data sparseness. 3.1 Word alignment We need to have source words and target words aligned in parallel corpora. We use a word alignment program that does not rely on parsing ... briefly here. First, all possible alignments are hypothesized as a matrix filled with occurrence similarities between source words and target words. Second, using the occurrence sim...

Ngày tải lên: 20/02/2014, 18:20

... Spelling Correction Using Context* Mohammad Ali Elmi and Martha Evens Department of Computer Science, Illinois Institute ... of the two words: initial / error segment in S [ tail segment [ error segment in W ] segment Using the modified algorithm, to compare the string e~_.b.bcyclopedic, to the word encyclopedic, ... previous word 'specific' and the valid word &quo...

Ngày tải lên: 20/02/2014, 18:20