effective measures of domain similarity for parsing
Tài liệu Báo cáo khoa học: "Finding Synonyms Using Automatic Word Alignment and Measures of Distributional Similarity" pdf
... an indication of the amount of information car-ried by that particular combination of a noun andits feature.We believe that this type of weighting is benefi-cial for calculating similarity between ... fre-quencies and which formula we use for weighting.The information value of a cell in a word vec-tor (which lists how often a word occurred in aspecific context) is not equal for all cells. Wewill ... asimilar experiment for Dutch, in which they testedmost of the best performing measures accordingto Curran and Moens (2002). Pointwise MutualInformation (I) and Dice† performed best in theirexperiments....
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Tài liệu Báo cáo khoa học: "Measures of Distributional Similarity" ppt
... account for the similar performance of various metrics by analyzing how they incor- porate information from the intersection of the supports of q and r. (Recall that we are using q and r for ... comparison of a broad range of similarity metrics using an evaluation methodology that factors out inessential degrees of freedom; a pro- posal, building on this comparison, of a charac- teristic for ... the support of q is not a subset of the support of r). 2Strictly speaking, some of these functions are dissim- ilarity measures, but each such function f can be recast as a similarity function...
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Báo cáo khoa học: "Construction of Domain Dictionary for Fundamental Vocabulary" pdf
... Processing of proper nouns and use of estimated subject area for web page translation. Intmi97, pages 10–18, Santa Fe.140Table 1: Examples of Keywords for each Domain Domain Examples of KeywordsCULTURE ... ambiguous in terms of domains and those thatappear frequently in web sites of companies.Among our future work is to deal with domain in-formation of multiword expressions. For example,fount ... a domain of the highestAdscore. An Adscore of domain is calculated bysumming up the top five Akscores of the domain. Then, an Akscore, which is defined between a JFWand a keyword of...
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Tài liệu THE SEARCH FOR OBJECTIVE MEASURES OF AESTHETIC JUDGMENT: THE CASE OF MEMORY TRACES docx
... application in the field of psychology of art. The next question con-cerned the choice of semantic scales. Eysenck (1940) argued for the existence of ageneral factor of aesthetic experience, ... and the need to do so by means of simple and clear measures. This balanceis particularly difficult to reach in the field of psychology of art, given the risk of oversimplifying psychological ... differentials of aesthetic appreciation of photographs. InJ. P. Frois, P. Andrade, & J. F. Marques (Eds.), Art and science. Proceedings of theXVIII Congress of the International Association of Empirical...
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Tài liệu Báo cáo khoa học: "Keyword Extraction using Term-Domain Interdependence for Dictation of Radio News" ppt
... any other domains, domainj seems to be the domain of unit~. The system se- lects the domain which is the largest of all sim- ilarities in N of domains as the domain of the unit (formula (6)) ... the length of pauses. We call the segments units. The domain which has the largest similarity between the unit of news and the feature vector of each domain is selected as domain of the unit. ... vectors. 5.3 Domain identification experiment The system selects suitable domain of each unit for keyword extraction. Table I shows the results of domain identification. We con- ducted domain identification...
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Báo cáo khoa học: "Joint Identification and Segmentation of Domain-Specific Dialogue Acts for Conversational Dialogue Systems" doc
... specificdialogue acts that include domain- specific semantics (for example, there are 29 subtypes of wh-questions that canbe performed in the domain, each with a separate domain- specific dialogue act ... argument of the argmax in equation 1: (1) in-stead of considering Score(Sh−1), consider onlythe last segment contained in Sh−1; and (2) instead of using the product of the scores of all segments,use ... correspondingto a domain- specific dialogue act, including somesemantic information. Each of these 77 labels iscomposed at least of a core speech act type (e.g.wh-question, offer), and possibly...
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Báo cáo khoa học: "A Bag of Useful Techniques for Efficient and Robust Parsing" ppt
... unification for parsing feature- based grammars. University of Sussex and Stanford University. Ann Copestake. 1998. The (new) LKB system. Ms, Stanford University, http ://~n~-csli. stanford, edu/~aac/newdoc, ... 1985. Using restriction to extend parsing algorithms for complex- feature-based formalisms. In Proceedings of the 23rd Annual Meeting of the Associa- tion for Computational Linguistics, ACL-85, ... unification. Therefore, any improvements in the efficiency of unification would have direct conse- quences for the overall performance of the sys- tem. One key to reducing the cost of unification...
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Báo cáo Y học: Identification of residues in the PXR ligand binding domain critical for species specific and constitutive activation docx
... designed:5¢-TGAGATGTGCCAGCTGAGGTTCA-3¢ for I282Q(forward), 5¢-CAACGCCCAGCATACCCAGCAGT-3¢ for Q404H (forward), 5¢-CAACGCCCAGGCAACCCAGCAGT-3¢ for Q404A (forward), 5¢-TGAACCTCAGCTGGCACATCTA-3¢ for I282Q (reverse), ... proved to be important for thebasal level of activation of PXR. The H407A mutant of thehuman receptor showed a high level of constitutive activity,while the Q404H mutant of the mouse receptor ... interpretation of our results.Western blot analysis of protein expression levelsA Western blot analysis of cell lysates containing thehuman PXR constructs shows the presence of a protein of expected...
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Báo cáo khoa học: "THE REPRESENTATION OF CONSTITUENT STRUCTURES FOR FINITE-STATE PARSING" pdf
... The derivation of E2* manifests first-degree center embedding of the category S*, as a result of the treatment of S as both a prefix and a suf- fix in G2*. However, no derivation of an affixed ... The use of prefixes in rules Gl*c-e, on the other hand, is unmotivated if the only criteria for choosing an affix type have to do with direction of recursion. For affix grammars of natural ... sufficient evidence for the identification of that constituent; e.g., if the leftmost daughter is either the specifier or the head of that constituent in the sense of Jacken- doff (1977). Third,...
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Báo cáo khoa học: "Word classification based on combined measures of distributional and semantic similarity" docx
... isparticularly effective for the task of classifying wordsinto numerous classes forming a hierarchy. The po-sition of a class inside the hierarchy reflects the de-gree of its semantic similarity ... semantic information: the classification decisionis a function of both (1) the distributional similarity of the new word to the target class and (2) the strength of the semantic relatedness of the ... eachclass, such as votes of nearest neighbors in the case of KNN or probabilitiesin the case of Naive B ayes.Step 1: For a new word w, a standard classifierproposes a set of most likely candidate...
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Báo cáo " Calculation of Morse Potential for Diamond Crystals. Applification to Anharmonic Effective Potential " docx
... calculation of Morse potential has been carried out for fcc, bcc [1,22 ] and hcp [17,22] crystals. The purpose of this work is to develop a method for calculation of Morse potential parameters of Diamond, ... which influence on the physical information taken from these spectra. They are also contained in the expressions of equation of state [1]. Therefore, calculation of the Morse potential is very ... reflect fundamental properties of this potential. The obtained Morse potential parameters have been used for calculation of the anharmonic correlated effective potentials of these crystals in XAFS...
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Báo cáo khoa học: "Demonstration of Joshua: An Open Source Toolkit for Parsing-based Machine Translation" potx
... purpose of the demonstration is 4-fold: 1) togive newcomers to the field of statistical machinetranslation an idea of the state -of- the-art; 2) toshow actual, live, end-to-end operation of the ... demonstration of the system, with a terminal window for each of the three main components of the systems, as well as visual aids, such as derivation trees (left); and one (not shown) designated for ... components of the demonstrationwill be spread across at most 3 machines (Fig-ure 1): one for the live “instant translation” userinterface, one for demonstrating the different com-ponents of the...
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Báo cáo khoa học: "Theoretical Evaluation of Estimation Methods for Data-Oriented Parsing" pot
... relativeto the size of the corpus.184Theoretical Evaluation of Estimation Methods for Data-Oriented Parsing Willem ZuidemaInstitute for Logic, Langu age and ComputationUniversity of AmsterdamPlantage ... the underlying formalism of most in-stantiations of an approach to statistical parsing known as “Data-Oriented Parsing (Scha, 1990;Bod, 1998). In this approach the subtrees of thetrees in ... simple com-binations of the frequencies f1. . . f4. Observa-tions of these frequencies therefore do not addany extra information, and the problem of fi nd-ing the weights of the target grammar...
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Foundations of Effective Influence Operations - A Framework for Enhancing Army Capabilities potx
... 1998).15 For a review of recent research in this area, see Ajzen, 2001. 16 For a discussion of the theory of reasoned action, see Fishbein and Ajzen, 1975; Ajzen and Fishbein, 1980. e theory of ... including a discussion of available strategies for influencing adversaries (and others) and a description of a family of rational choice models that can inform the development of influence strategies ... the ability to employ various forms of soft power.Even before the attacks of September 11, 2001, there was a grow-ing realization that the U.S. image in much of the Muslim world may have been...
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