Tài liệu Báo cáo khoa học: "Exploiting N-best Hypotheses for SMT Self-Enhancement" doc

... available for choosing values for these parameters. For En- glish we use the parameters reported in (Liang, 1983). For Dutch we use the parameters reported in (Tutelaers, 1999). Preliminary informal ... train- ing sets for English and Dutch from the CELEX European lexical resource, and achieve error rates for English of less than 0.1% for correctly allowed hyphens, and less than...

Ngày tải lên: 20/02/2014, 04:20

... Australia Katherine.Demuth@MQ.edu.au Michael Frank Department of Psychology Stanford University Stanford, California mcfrank@Stanford.edu Abstract This paper uses an unsupervised model of grounded language ... a framework for stating a variety of Bayesian non- parametric models defined in terms of a hierarchy of Pitman-Yor Processes: see Johnson et al. (2007) for a formal description. Info...

Ngày tải lên: 19/02/2014, 19:20

... proper- ties. The phrase “wet haddock” is a readymade for coldness because “wet” accentuates the “cold” that we associate with “haddock” (via the web simile “as cold as a haddock”). In the words of Hofstad- ter ... mutually reinforces an unstated but sali- ent property Adj SA of the stereotype. Exam- ple: “as cold as a wet haddock”. The combination is indexed on Adj SA . More complex stru...

Ngày tải lên: 20/02/2014, 05:20

... Association for Computational Linguistics Exploiting N-best Hypotheses for SMT Self-Enhancement Boxing Chen, Min Zhang, Aiti Aw and Haizhou Li Department of Human Language Technology Institute for ... source- target N-best hypotheses with the original training data again showed translation performance im- provement and demonstrated that the translation model can be rein...

Ngày tải lên: 20/02/2014, 09:20

... exploit non-local information in the next section. 3 Incorporating Non-local Information 3.1 Using Trigger Features To exploit non-local information to sequential la- beling for a statistical SLU, ... bet- ter than CRF (the structured model) not only for time cost but also for the performance on our ex- periment 4 . This result shows that local informa- tion provides the fundamental dec...

Ngày tải lên: 20/02/2014, 12:20

... Introduction Question answering (QA) is as a form of informa- tion retrieval where one or more answers are re- turned to a question in natural language in the form of sentences or phrases. The typical ... Web-based QA system, i.e. YourQA. The latter uses Web docu- ments corresponding to the top 20 Google results for the question. Then, each sentence in each document is compared to the quest...

Ngày tải lên: 20/02/2014, 12:20

... 2007. c 2007 Association for Computational Linguistics Exploiting Structure for Event Discovery Using the MDI Algorithm Martina Naughton School of Computer Science & Informatics University College ... of the event, and represent the extracted information into a structured form (Grishman, 1997). The types of events to extract are known in advance. For exam- ple, “Attack” and “Death”...

Ngày tải lên: 20/02/2014, 12:20

... were assembled with genedoc 2.7 [41]. The tools provided with the ExPASy Molecular Biology Server of the Swiss Institute of Bioinformatics (http:// www.expasy.org) were used for the analyses of DNA ... rates. Prior probabilities for all trees were equal. Metropolis-coupled Markov chain Monte Carlo sampling was performed with one cold and three heated chains that were run for 1 000 000 g...

Ngày tải lên: 18/02/2014, 08:20

... incu- bated for 4 days with each of the peptides (10 lm), and cells were fixed and used for immunocytochemical analyses. Immunocytochemistry Neurons were fixed in 4% paraformaldehyde for 20 min at ... to transformed Ca 2+ -competent E. coli cells (ER2566) by heat shock. The transformed cells were spread on LB agar plates containing ampicillin (50 mgÆL )1 ), single colonies were picked fo...

Ngày tải lên: 18/02/2014, 13:20

... resulted in the formation of 20,23-di- hydroxyvitamin D3 (RT = 30 min) and trihydroxyvi- tamin D3 (RT = 22 min) (Fig. 4A). A small lag (0– 3 min) was seen in the time course for formation of trihydroxyvitamin ... correlations for 3-CH and 23-CH; (B) expan- sion of proton–proton TOCSY correlations for 3-CH and 23-CH; (C) expansion of proton–carbon HSQC showing groups having correla- tion...

Ngày tải lên: 18/02/2014, 17:20