Báo cáo khoa học: "A Word-Class Approach to Labeling PSCFG Rules for Machine Translation" pot

... Association for Computational Linguistics, pages 1–11, Portland, Oregon, June 19-24, 2011. c 2011 Association for Computational Linguistics A Word-Class Approach to Labeling PSCFG Rules for Machine ... word- alignments to suggest lexical relationships, they dif- fer in the way in which they assign labels to non- terminal symbols of PSCFG rules. Chiang (2005) descri...

Ngày tải lên: 23/03/2014, 16:20

... July 2006. c 2006 Association for Computational Linguistics A Flexible Approach to Natural Language Generation for Disabled Children Pradipta Biswas School of Information Technology Indian ... used as speech -to- speech translator between English and Mandarin Chinese. The NLG part of this system uses trigram language model for selecting appropriate inflectional form for ta...

Ngày tải lên: 17/03/2014, 04:20

... information, has outperformed machine learning models which only use n-gram features. The rules were manually tuned for every ICD-9-CM code found in the chal- lenge training data set and therefore ... researchers tried to encode do- 2 http://www.nlm.nih.gov/mesh/ 3 http://www.nlm.nih.gov/research/umls/ Total radiology records 1,954 Total tokens 51,940 Total ICD-9-Codes 45 Total code i...

Ngày tải lên: 31/03/2014, 00:20

... probability Pr(S → S  ). In order to conform to the log-linear model used in the de- coder, we integrate the two factors by defining the total score of T as formula 3: exp(λ r logPr(S →S  ) +  i λ i F i (S  →T ... then fed to stan- dard phrase-based decoder to produce the optimal translation. Experiments show that, for the NIST MT-05 task of Chinese -to- English translation, the...

Ngày tải lên: 31/03/2014, 01:20

... network-based approach to prepositional phrase attachment disam- biguation for real world texts. Although the use of semantic classes in this task seems intuitively to be adequate, methods employed to ... sense. As a result, before deciding attachment, it is first nec- essary to determine the correct sense for each word. 3 None of the preceding methods used classes for...

Ngày tải lên: 31/03/2014, 04:20

... graphs for a bottom-top search with the IBM constraints is described in (Ueffing et al., 2002). These methods cannot be applied to the CYK-style search for the ITG con- straints. Here, the idea for ... prun- ing technique is threshold pruning: the idea is to re- move all hypotheses that have a low probability rela- tive to the best hypothesis. Therefore, we introduce a threshold pr...

Ngày tải lên: 17/03/2014, 06:20

... postpositions, there are no formal computational rules to perform it. So we must find and store heuristic rules empirically and then make proper use of them. Some heruistic rules to select appropriate ... especially for metaphorical expressions. A bird could also use binoculars. Table 3 Rules for Assigning Syntactic Roles to Phrasal Elements Pattern to be Scanned N...

Ngày tải lên: 31/03/2014, 17:20

... bootstrapping approach to named entity (NE) classification. This approach only requires a few common noun/pronoun seeds that correspond to the concept for the target NE type, e.g. he/she/man/woman for ... procedure can hardly learn IsA-based rules. Therefore, we add the following IsA-based rules to the top of the decision list: IsA(seed)Æ tag of the seed, for example...

Ngày tải lên: 20/02/2014, 16:20

... C3200 before moving on to investigate a plan for CS263. Since the teacher of C3200 has nothing to do with the plan for taking C3263, the mechanisms for retaining dialogue context will fail to iden- ... date for the AS conference is in February. Recourse to such a belief model is necessary in order to allow for Yes-No questions to which the answer is "No"...

Ngày tải lên: 21/02/2014, 20:20

... representational capacity to make such definitions, we have chosen as part of our design no_._tt to use it. For to use it, would mean stepping outside of NIKL to specify constants, and therefore, that the ... in formulae that lexical items map to. For in- stance, vessel and ship map to VESSEL. In the ex- ample above regarding pilot, the constants were PER- SON, FLYING-EV...

Ngày tải lên: 21/02/2014, 20:20