Tài liệu Báo cáo khoa học: "A Unified Framework for Automatic Evaluation using N-gram Co-Occurrence Statistics" pptx

... propose a unified framework for automatic evaluation of NLP applications using N-gram co-occurrence statistics. The automatic evaluation metrics proposed to date for Machine Translation and Automatic ... A Unified Framework for Automatic Evaluation using N-gram Co-Occurrence Statistics Radu SORICUT Information Sciences Institute University of South...

Ngày tải lên: 20/02/2014, 16:20

... systems are built using labelled train- ing data or using heuristics to extract transliteration pairs. These systems are language pair dependent or require labelled information for training. Our ... between r and s is calculated using the forward and backward prob- abilities as follows: γ  rs = α(r) p(q) β(s) α(E) (7) 1 In preliminary experiments, using an n-gram order of greater...

Ngày tải lên: 19/02/2014, 19:20

... allows that use of future information in ad- dition to past information. The pipeline model nat- urally allows access to all the past information. Algorithm 3 Pseudo code for the look ahead algo- rithm. ... We develop a framework for decisions made via in pipeline models, which addresses these difficulties, and presents and evaluates it in the context of bottom up dependency parsing for...

Ngày tải lên: 20/02/2014, 12:20

... grammatical and pro- cessing framework for handling the repairs, hesitations, and other interruptions in nat- ural human dialog. The proposed frame- work has proved adequate for a collection of human-human ... take the ban- um the oranges, three constituents would be produced, one for urn, another for take the ban-, and a third for take the oranges. Another complicating f...

Ngày tải lên: 20/02/2014, 19:20

... structure. For the rule for S, for instance, we add an ele- ment describing what the SUBJECT and PRED are for. We could say that the SUBJECT is the theme and the PRED is the theme, using terms ... system, on the availability of automatic inference systems for the language in question, and on the perceived need for ex- pressive power. For the system that lies behind the...

Ngày tải lên: 22/02/2014, 10:20

... of the Association for Computational Linguistics, pages 1367–1375, Uppsala, Sweden, 11-16 July 2010. c 2010 Association for Computational Linguistics A Unified Graph Model for Sentence-based ... relevant to the target concerned. Therefore, we argue that existing information representation i.e. bag-of-word, cannot satisfy the information needs for opinion retrieval. In this pape...

Ngày tải lên: 20/02/2014, 04:20

... absorbance at 275 nm using e 275 = 1400 m )1 cm )1 . Assessment of aggregation using thioflavin T binding and electron microscopy The kinetics of fibril formation was determined using a con- tinuous ... and cells were fixed and used for immunocytochemical analyses. Immunocytochemistry Neurons were fixed in 4% paraformaldehyde for 20 min at room temperature, and cells were stained for...

Ngày tải lên: 18/02/2014, 13:20

... Association for Computational Linguistics, pages 930–939, Jeju, Republic of Korea, 8-14 July 2012. c 2012 Association for Computational Linguistics PORT: a Precision-Order-Recall MT Evaluation Metric for ... not optimize its performance as an evaluation metric, but rather, to optimize system tuning performance. There are some other possible reasons why PORT did not outperform M...

Ngày tải lên: 19/02/2014, 19:20

... p null = 10 −10 for this value in the experiments we report below. 784 either φ P z i for phrase pairs or φ null for single lan- guage phrases. We choose Dirichlet process (DP) priors for these parameters: φ P z i ∼ ... values for the hyperparameter. We sample a new value for each α x using a log-normal distribution with mean α x and variance 0.3, which is then accepted into the...

Ngày tải lên: 20/02/2014, 07:20

... (2001) for this purpose. Using the built-in maximum entropy learner with feature combination, BART reaches 65.8% F-measure on MUC6 and 62.9% F-measure on MUC7 using Soon et al.’s features, outperforming JAVARAP ... standoff format of the MMAX2 annotation tool (M ¨ uller and Strube, 2006) with MiniDiscourse, a library that efficiently imple- ments a subset of MMAX2’s functions. Using a...

Ngày tải lên: 20/02/2014, 09:20