Báo cáo khoa học: "A Bottom-up Approach to Sentence Ordering for Multi-document Summarization" ppt

... normal form, were translated into a form which is favorable to our method. 2118 rules of the original rules were rewrlttenas 5241 rules in Chom- sky normal form. B. Parser A bottom-up context-free ... enable us to count how many times each transition is fired from the given sample sentences. For example, transitions from the state S to the state NP. VP may occur for almost...

Ngày tải lên: 08/03/2014, 18:20

... In this system, similarly to the pre- viously mentioned generators, users are able to de- termine the category of the service to be promoted together with the features to be emphasized. Our improvement ... ser- vices generally require customers to provide brief information about the business to be named, fill in questionnaires to learn about their markets, competi- tors, and expe...

Ngày tải lên: 23/03/2014, 14:20

... 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 ... our consideration to only the small set of output pat- terns of the same length. Thus, unlike typical sequence predictors, we do not have to search for the highest-scoring output a...

Ngày tải lên: 23/03/2014, 16:21

... does. Hence, we made an effort to use methods based on the linguistic phenomena to enhance the index- ing performance. Our approach focuses on proposing concept vector space for extracting and weighting ... information quantity of a word. Ψ W j |T is illustrated below. Definition 6 (Information Ratio, Ψ) Information ratio is the ratio of the information quantity of a comparative target...

Ngày tải lên: 23/03/2014, 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

... human post-editors. ~brk is now in progress to devise a suite of programs to provide a constituent analysis of the sentences in the corpus. So far, sample sentences have been automatically ... automatic constituent analysis. The detailed distinctions made by the subcategory symbols are devised with the aim of providing helpful information for automatic constituent analysis and,...

Ngày tải lên: 22/02/2014, 09:20

... 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

... 1997; Satoshi et al., 2001) and length-based (Satoshi et al., 2001). Considered the first work on sentence scoring for automated text summarization, Luhn (1958) based the significance factor of a sentence ... (TAHA) software tool 9 that enables sentences to be easily selected and stored for later inclusion in the doc- ument extract. In total, 70 undergraduate students from the Departm...

Ngày tải lên: 07/03/2014, 22:20