Báo cáo khoa học: "AN EMPIRICAL MODEL OF ACKNOWLEDGMENT" docx

Tài liệu Báo cáo khoa học: "An Empirical Investigation of Discounting in Cross-Domain Language Models" ppt

... ktrain(w) denote the number of occurrences of w in the training corpus, and ktest(w)denote the number of occurrences of w in the testcorpus. We deﬁne the empirical discount of w to bed(w) = ktrain(w) ... per-vasive phenomenon of growing empirical discounts,except in the case of extremely similar corpora.Growing discounts of this sort were previously sug-gested by the model of Teh (2006). However, ... n-gramcount can substantially improve the model. Theirwork also improves on the second assumption of Kneser-Ney, that of the inadequacy of the average empirical discount as a discount constant,...

Tài liệu Báo cáo khoa học: "An Empirical Study of Information Synthesis Tasks" doc

... measure of the degree of surprise of atext or corpus given a language model. In our case,we build a language model LM(Mr) for the refer-ence report Mr, and measure the perplexity of thecontrastive ... U}n-gram∈CCountwhere MU is the set of model units, Countmisthe maximum number of n-grams co-ocurring in apeer summary and a model unit, and Count is thenumber of n-grams in the model unit. It has beenestablished ... summaries consist of a)picking the ﬁrst n sentences out of a set of selected documents (with different val-ues for n and different sets of documents)and b) taking the full content of a few doc-uments....

Tài liệu Báo cáo khoa học: "An Empirical Investigation of Proposals in Collaborative Dialogues" docx

... exist to the set of constraint equations, each varl in the set of equations must have a solution. For example, if 5 instances of sofas are known for varsola, but every assignment of a value to ... de- grees of strength) to some future course of action. The only distinction is whether the commitment is conditional on H's agreement (Offer) or not (Com- mit). With an Offer, S indicates ... equations and the number of possible solutions given all the possible assignments of values to these variables. The variables of interest for our corpus are the ob- jects of type t in the goal...

Báo cáo khoa học: "An Empirical Study of Chinese Chunking" docx

... study.Training TestNum of Files 728 110Num of Sentences 9,878 5,290Num of Words 238,906 165,862Num of Phrases 141,426 101,449Table 2: Information of the CTB4 Corpus3 Chinese Chunking3.1 Models for ... conducted an empirical study of Chinese chunking. We compared the performance of four models, SVMs, CRFs, MBL, and TBL.We also investigated the effects of using differentsizes of training data. ... Treebank-4(CTB4). Wepresented an empirical study of Chinese chunk-ing on this corpus. First, we made an evaluationon the corpus to clarify the performance of state- of- the-art models in Chinese chunking....

Báo cáo khoa học: "An Empirical Study of the Influence of Argument Conciseness on Argument Effectiveness" docx

... functions, one for each primitive attribute of the entity. A value tree is a decomposition of the value of an entity into a hierarchy of aspects of the entity2, in which the leaves correspond ... User Model Refiner (Figure 4 (3)) to produce a Refined Model of the User’s Preferences (Figure 4 (4)). At this point, the stage is set for argument generation. Given the Refined Model of the ... theory, the selection of what evidence to mention in an argument should be based on a measure of the evidence strength of support (or opposition) to the main claim of the argument (Mayberry...

Tài liệu Báo cáo khoa học: An autoinhibitory effect of the homothorax domain of Meis2 ppt

... presence of alternative splicingaround the 5¢-end of exon 6 of Meis2 and Meis3 was tested by RT-PCR. The positions of molecular mass markers are shown to the left,and the size in base pairs of the ... DNA-bindingcofactors [10–12]. Meis2 is a member of the TALEsuperfamily of HD proteins, which are characterizedby the presence of a three amino acid loop insertionbetween helices 1 and 2 of the ... derepression of tran-scriptional activity by removal of the Hth domain mightbe a more general feature of Meis family proteins, wetested the effects of GBD fusion proteins on Prep1 anda version of Prep1...

Tài liệu Báo cáo khoa học: A kinetic model of the branch-point between the methionine and threonine biosynthesis pathways in Arabidopsis thaliana doc

... Piconsiderably affects the dynamics of the system. Indeed, inthe presence of 10 mMPi, the model indicates that thecatalytic rates of CGS and TS are divided by a factor of 6and 11, respectively, ... acomputer model of the branch-point and validated itin vitro. A satisfying but imperfect agreement of thepredictions with the experimental results lead us to improvethe model with a simplification of ... theactivating interaction of AdoMet with TS may attenuatethe changes in the flux of threonine due to a modification of the level of AdoMet. Indeed, upon an increase in the level of AdoMet, TS is activated...

Tài liệu Báo cáo khoa học: "An Unsupervised Model for Joint Phrase Alignment and Extraction" ppt

... thesis, Massachusetts Institute of Tech-nology.John DeNero and Dan Klein. 2008. The complexity of phrase alignment problems. In Proceedings of the 46thAnnual Meeting of the Association for ComputationalLinguistics, ... IgnacioThayer. 2006. Scalable inference and training of context-rich syntactic translation models. In Proceed-ings of the 44th Annual Meeting of the Association forComputational Linguistics, pages ... learning of non-compositional phrases with synchronous parsing. Pro-ceedings of the 46th AnnualMeeting of the Associationfor Computational Linguistics, pages 97–105.641Proceedings of the 49th...

Tài liệu Báo cáo khoa học: "An Implemented Description of Japanese: The Lexeed Dictionary and the Hinoki Treebank" ppt

... description of the mostfamiliar 28,000 words of Japanese.1 IntroductionIn this paper we describe the current state of anew lexical resource: the Hinoki treebank. Theultimate goal of our research ... syntac-tic model is embodied in a grammar, while the se-mantic model is linked by an ontology. This makesit possible to test the use of similarity and/or se-mantic class based back-offs for ... with an annotator’s choice of the most appropriate parse. From this record,all kinds of information can be extracted at variouslevels of granularity: A simpliﬁed example of thelabeled tree, minimal...

Tài liệu Báo cáo khoa học: "An Evaluation Method of Words Tendency using Decision " docx

... classes of the input analysis data (test data). 2. POPULARITY OF WORDS CONSIDERING TIME-SERIES VARIATION 2.1 Stability Classes of the Words: To judge the index of popularity of words ... than that of straight line (2). The value of the slice of regression straight line (1) is also higher than that of regression straight line (2). So, we can decide that the words of the regression ... than that of straight line (2). The value of the slice of regression straight line (1) is also higher than that of regression straight line (2). So, we can decide that the words of the regression...

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