Báo cáo khoa học: "Forest Rescoring: Faster Decoding with Integrated Language Models ∗" doc

... Republic, June 2007. c 2007 Association for Computational Linguistics Forest Rescoring: Faster Decoding with Integrated Language Models ∗ Liang Huang University of Pennsylvania Philadelphia, PA 19104 lhuang3@cis.upenn.edu David ... 90292 chiang@isi.edu Abstract Efficient decoding has been a fundamental problem in machine translation, especially with an integrated language...

Ngày tải lên: 17/03/2014, 04:20

... translation decoding with integrated lan- guage models: we can view the scores of unit non- local features as the language model cost, computed on-the-fly when combining sub-constituents. Shown in Pseudocode ... combined with other nodes in the future. 3.3 Approximate Decoding via Cube Pruning Before moving on to approximate decoding with non-local features, we first describe t...

Ngày tải lên: 17/03/2014, 02:20

... expected semantic role se- quence. Sentence a is in active voice with sequence (A0, P REDICA T E, A1) and sentence b is in passive voice with sequence (A1, P R EDICAT E, A0). Addi- tional global preferences, ... work is an unsupervised model that uses global role ordering and repetition preferences without as- suming any language- specific constraints. Following Gildea and Jurafsky (2002)...

Ngày tải lên: 19/02/2014, 19:20

... explicitly models and classifies the source language ori- gins and switches transliteration models ac- cordingly. This model, however, requires an explicitly tagged training set with language origins. ... different transliteration models forwords with different language origins, but it requires us to build class detection model c from training pairs explicitly tagged with la...

Ngày tải lên: 07/03/2014, 22:20

... Frequency Proportion of relevant docs with term in only one transcript source Figure 1: For each term in each query, the proportion of relevant documents containing the term vs. inverse doc- ument frequency. ... retrieved the doc- ument. This is a small-dimensional way of damp- ening the effects of significant disagreements in the document representations. 3.1.2 GAM with multidimension...

Ngày tải lên: 08/03/2014, 01:20

... of mag- nitude faster than the basic Viterbi algorithm and a state-of-the-art algorithm (Esposito and Radicioni, 2009); it makes exact decoding practical even in labeling problems with a large ... the other discriminative models, our algo- rithm is equivalently applicable to them. The ma- jor difference between those models lies in param- eter estimation; the decoding process is vi...

Ngày tải lên: 07/03/2014, 22:20

... GIZA++ (Och and Ney, 2003) with grow-diag-final combination, with in- frastructure for alignment combination and phrase extraction provided by the shared task. We decode with Moses, using a stack ... Sentences with cohesive base- line translations receive much higher BLEU scores than those with uncohesive baseline translations. This indicates that the cohesive subset is easier to tra...

Ngày tải lên: 08/03/2014, 01:20

... improvement that can be gained through rescor- ing with MBR, we start from a system that has al- ready been rescored with additional models like an n-gram language model, HMM, IBM-1 and IBM-4. It turned ... (Matusov et al., 2006) including the following models: an n-gram language model, a phrase translation model and a word-based lex- icon model. The latter two models are used fo...

Ngày tải lên: 08/03/2014, 03:20

... very large translation tables extracted from word-aligned parallel data, with many entries in the tables never being used in decoding. The redundancy of translation ta- bles is not desirable in real-time ... table by deleting phrase pairs with significance values smaller than a threshold. Their experimental results show that the size of the phrase table can be greatly reduced with no si...

Ngày tải lên: 17/03/2014, 02:20

... Carbohydrate, glycolysis Saccharomyces cerevisiae A constructed model agrees with almost all experimentally known stationary concentrations and metabolic fluxes, with the frequency of oscillation and with the majority of other experimentally ... biochem- istry, cell biology in the living cell) with computational modeling. Here, computational modeling does not refer to statistical mode...

Ngày tải lên: 14/02/2014, 14:20