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

... vs. be-at-i-fy).3 Automatic Stress Prediction Our stress assignment system maps a word, w, to astressed-form of the word, ¯w. We formulate stress assignment as a sequence prediction problem. ... ofcontext-sensitive rules for producing English stress from underlying word forms. Due to itsimportance in text -to- speech, there is also a longhistory of computational stress prediction sys-tems ... pages 118–126,Suntec, Singapore, 2-7 August 2009.c2009 ACL and AFNLPA Ranking Approach to Stress Prediction for Letter -to- Phoneme ConversionQing Dou, Shane Bergsma, Sittichai Jiampojamarn and...

Báo cáo khoa học: "A Hybrid Approach to Word Segmentation and POS Tagging" doc

... system’s out-put to the number of words in system’s output),1The unknown word rate for word segmentation is not equal to the unknown word rate for POS tagging in general, sincethe word forms of some ... nodes are used to identifyknown words, and the character-level nodes are used to identify unknown words, because generally word-level information is precise and appropriate for pro-cessing ... words are not identiﬁed. Therefore, we ex-tend the method in order to conduct unknown wordPOS tagging too:Hybrid MethodThe method uses subdivided POC-tags in or-der to identify not only the positions...

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 in- stance, vessel and ship map to VESSEL. In the ex- ample 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

... 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. ... EDB-~enter for Humanistisk Forskning. Johansson, S., Leech, G. and Goodluck, H. (1978). Manual of information to accompany th, e Lancaster-Oslo/Ber~en cor~us of British En~lishl for use with...

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

... disadvantage. To choose the best summary, multiple candidatesshould be generated and evaluated for each docu-ment (or document cluster).Following a different approach, Turney (2000)used a GA to learn ... op-eration.3http://www.extractor.com/928Today, graph-based text representations are be-coming increasingly popular, due to their abil-ity to enrich the document model with syntacticand semantic relations. Salton ... SourcePOS F Closeness to the beginning of the document:1i(Edmundson, 1969)POS L Closeness to the end of the document: i (Baxendale, 1958)POS B Closeness to the borders of the document: max(1i,1n−i+1)(Lin...

Báo cáo khoa học: "A Deductive Approach to Dependency Parsing∗" potx

... which acts as a “dummy head” for thesentence. In order for the algorithm to parse sen-tences correctly, we will need to deﬁne D-rules to allow w0 to be linked to the real sentence head.3.3 ... (1999) deﬁne an O(n3) parser for split head automaton grammars that can be used4Alternatively, we could consider items of the form [i, i +1, F, F ] to be hypotheses for this parsing schema, so ... descriptions for a wide range ofwell-known algorithms described in the literature,and we show how they formally relate to each otherand how we can use these relations and the formal-ism itself to prove...

Báo cáo khoa học: "A Bootstrapping Approach to Unsupervised Detection of Cue Phrase Variants" docx

... GoogleScholar to perform better than BNC as source for ﬁnding hypotheses for lexical variants, which maybe due to the larger amount of data available to Google Scholar. This seems to outweigh ... concept-A accumulator listwhich has not been used as an active element be-fore.Repeat steps 1-3 for k iterationsOutput: top M words of concept-A (verb) accumulator listand top N words of concept-B ... The seed words were of theform {goal-verb, goal-noun}, and we submittedeach of the 4 combinations of the seed pair to Google Scholar. From the top 1000 documents for each query, we harvested...

Xem thêm