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

Báo cáo khoa học: "A STOCHASTIC APPROACH TO SENTENCE PARSING" pptx

... 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 every sentence ... constraints are known to be indispensable and are recommended to be represented in some formal way and to be referred to during or after the syntac- tic analysis process. However, to represent semantic...

Báo cáo khoa học: "A Computational Approach to the Automation of Creative Naming" ppt

... In this system, similarly to the pre-viously mentioned generators, users are able to de-termine the category of the service to be promotedtogether with the features to be emphasized. Ourimprovement ... ser-vices generally require customers to provide briefinformation about the business to be named, ﬁll inquestionnaires to learn about their markets, competi-tors, and expectations. In the ... the user, we need to automatically retrieve moreinformation about this word. For instance, if the cat-egory has been determined as “shampoo”, we need to learn that “it is used for washing hair”...

Báo cáo khoa học: "A Ranking Approach to Stress Prediction for Letter-to-Phoneme Conversion" doc

... 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 ... ourconsideration to only the small set of output pat-terns of the same length.Thus, unlike typical sequence predictors, we donot have to search for the highest-scoring outputaccording to our model. ... proposed a set ofcontext-sensitive rules for producing Englishstress from underlying word forms. Due to itsimportance in text -to- speech, there is also a longhistory of computational stress prediction...

Báo cáo khoa học: "A Novel Approach to Semantic Indexing Based on Concept" ppt

... does.Hence, we made an effort to use methods basedon the linguistic phenomena to enhance the index-ing performance. Our approach focuses on proposingconcept vector space for extracting and weighting ... information quantity of aword. ΨWj|Tis illustrated below.Deﬁnition 6 (Information Ratio, Ψ) Informationratio is the ratio of the information quantity of acomparative target to the information ... Semantic Indexing Based on ConceptCurrent approaches to index weighting for informa-tion retrieval are based on the statistic method. Wepropose an approach that changes the basic index termweighting...

Tài liệu Báo cáo khoa học: "A Bootstrapping Approach to Named Entity Classification Using Successive Learners" pdf

... 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 learning. The reason for the ... 86.7% To benchmark the quality of the automatically constructed corpus (Table 2), the testing corpus is first processed by our parser and then saved into the repository. The repository level...

Tài liệu Báo cáo khoa học: "A PRAGMATICBASED APPROACH TO UNDERSTANDING" pdf

... 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 questions implicitly by proceding to answer the question or to seek information relevant to formulat- ing an answer. However IS may refuse to accept the question posed by IP because ... might believe that the starting 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"...

Tài liệu Báo cáo khoa học: "A HYBRID APPROACH TO REPRESENTATION IN THE JANUS NATURAL LANGUAGE PROCESSOR" pot

... 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 instance, vessel and ship map to VESSEL. In the example above regarding pilot, the constants were PER- SON, FLYING-EVENT, and ACTOR; in the formula ... for knowledge acquisition. KNACQ presents the user with a few questions and menus to elicit the English expressions used to refer to. that concept or role. To illustrate the kinds of information...

Tài liệu Báo cáo khoa học: "A PROBABILISTIC APPROACH TO GRAMMATICAL ANALYSIS OF WRITTEN ENGLISH BY COMPUTER" pot

... 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, for ... us to derive word tag adjacency statistics for potential word tag disambiguation. But no parsed corpus exists yet for the purposes of derivln~ statistics for disambiguating parsing information....

Báo cáo khoa học: A kinetic approach to the dependence of dissimilatory metal reduction by Shewanella oneidensis MR-1 on the outer membrane cytochromes c OmcA and OmcB potx

... these cytochromes have been proposed to be ter-minal Fe(III) and Mn(IV) reductases, although their role in the reductionof other metals is less well understood. To obtain more insight into this,we ... reduction curves conforms to the MR-1Rcurve, allow us to deduce that the electron transportchain does not bifurcate any further, but ends at thispoint before transferring electrons to the subject ... pathway takes$ 11.5 times longer for OmcA than for OmcB. Takinginto account the speciﬁcity constants, OmcA should out-number OmcB about six-fold if it is to substitute for thelatter in anaerobic...

Báo cáo khoa học: "A new Approach to Improving Multilingual Summarization using a Genetic Algorithm" pptx

... 1997;Satoshi et al., 2001) and length-based (Satoshi etal., 2001).Considered the first work on sentence scoring for automated text summarization, Luhn (1958)based the significance factor of a sentence ... (TAHA)software tool9that enables sentences to be easilyselected and stored for later inclusion in the doc-ument extract. In total, 70 undergraduate studentsfrom the Department of Information ... didthe researchers attempt to find the optimal weights for the best linear combination.Information retrieval and machine learningtechniques were integrated to determine sentence importance (Kupiec...

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