Báo cáo khoa học: "A Probabilistic Approach to Syntax-based Reordering for Statistical Machine Translation" potx

... modified to reduce manual intervention and to provide more detailed subcategor- izations. Phrase and Clause Tagging. The success of the probabilistic model for word tagging prompted us to devise ... automatic constituent analysis. The detailed distinctions made by the subcategory symbols are devised with the aim of providing helpful information for automatic constituent a...

Ngày tải lên: 22/02/2014, 09:20

... Czech Republic, June 2007. c 2007 Association for Computational Linguistics A Probabilistic Approach to Syntax-based Reordering for Statistical Machine Translation Chi-Ho Li, Dongdong Zhang, ... needed for local reordering. For the n×T → ˆ T part, the factors in consideration include the score of T returned by the decoder, and the reordering probability Pr(S → S  )....

Ngày tải lên: 31/03/2014, 01:20

... into 85% for training, 5% for development, and 10% for test- ing. To make results on German and Dutch com- parable with English, we reduce the training, de- velopment, and testing set by 80% for ... words to substrings (s), the ba- sic units in our sequence (Section 3.1). (2) Then, a particular stress pattern (t) is chosen for each substring sequence. We use a sup- port vector...

Ngày tải lên: 23/03/2014, 16:21

... is still enough for the arguments in this paper• III SYNTAX DIRECTED APPROACH: A PROTOTYPE ENGLISH-JAPANESE MACHINE TRANSLATION SYSTEM So far we have developed two prototype machine translation ... especially for metaphorical expressions. A bird could also use binoculars. Table 3 Rules for Assigning Syntactic Roles to Phrasal Elements Pattern to be Scanned New Pattern...

Ngày tải lên: 31/03/2014, 17:20

... seg- mented into sequences of tokens that are meant to be words. Therefore, for languages where word boundaries are not orthographically marked, tools which segment a sentence into words are required. However, ... segmentation approach for SMT. The assumption behind this motivation is that the lan- guage to be segmented can be tokenised into ba- sic writing units. Firstly, we extrac...

Ngày tải lên: 22/02/2014, 02:20

... English -to- Japanese result, but the difference is not significant. 5.5 Reordering Performance In order to show whether the improved performance is really due to improved reordering, we would like to ... Association for Computational Linguistics, pages 912–920, Jeju, Republic of Korea, 8-14 July 2012. c 2012 Association for Computational Linguistics A Ranking-based Approach...

Ngày tải lên: 19/02/2014, 19:20

... 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 ... method for PER NE, LOC NE, and ORG NE are 5%, 6%, and 34% respectively. The performance for PER and LOC are above 80%, approaching the performance of supervised learn...

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- ... such ques- tions implicitly by proceding to answer the ques- tion or to seek information relevant to formulat- ing an answer. However IS may refuse to accept the ques...

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

... these cytochromes have been proposed to be ter- minal Fe(III) and Mn(IV) reductases, although their role in the reduction of other metals is less well understood. To obtain more insight into this, we ... reduction curves conforms to the MR-1R curve, allow us to deduce that the electron transport chain does not bifurcate any further, but ends at this point before transferring electrons...

Ngày tải lên: 07/03/2014, 09:20