effective measures of domain similarity for parsing

Ngày tải lên: 30/03/2014, 21:20

... an indication of the amount of information car- ried by that particular combination of a noun and its 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 a specific context) is not equal for all cells. We will ... a similar experiment for Dutch, in which they tested most of the best performing measures according to Curran and Moens (2002). Pointwise Mutual Information (I) and Dice† performed best in their experiments....

Ngày tải lên: 20/02/2014, 12:20

... 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...

Ngày tải lên: 20/02/2014, 18:20

... Processing of proper nouns and use of estimated subject area for web page translation. In tmi97, pages 10–18, Santa Fe. 140 Table 1: Examples of Keywords for each Domain Domain Examples of Keywords CULTURE ... ambiguous in terms of domains and those that appear 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 highest A d score. An A d score of domain is calculated by summing up the top five A k scores of the domain. Then, an A k score, which is defined between a JFW and a keyword of...

Ngày tải lên: 17/03/2014, 04:20

Ngày tải lên: 30/03/2014, 21:20

Ngày tải lên: 31/03/2014, 01:20

... 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 a general factor of aesthetic experience, ... and the need to do so by means of simple and clear measures. This balance is particularly difficult to reach in the field of psychology of art, given the risk of oversimplifying psychological ... differentials of aesthetic appreciation of photographs. In J. P. Frois, P. Andrade, & J. F. Marques (Eds.), Art and science. Proceedings of the XVIII Congress of the International Association of Empirical...

Ngày tải lên: 19/02/2014, 17:20

... 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...

Ngày tải lên: 20/02/2014, 18:20

... specific dialogue acts that include domain- specific semantics (for example, there are 29 subtypes of wh-questions that can be 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(S h−1 ), consider only the last segment contained in S h−1 ; and (2) instead of using the product of the scores of all segments, use ... corresponding to a domain- specific dialogue act, including some semantic information. Each of these 77 labels is composed at least of a core speech act type (e.g. wh-question, offer), and possibly...

Ngày tải lên: 07/03/2014, 22:20

... 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...

Ngày tải lên: 08/03/2014, 06:20

... designed: 5¢-TGAGATGTGCCAGCTGAGGTTCA-3¢ for I282Q (forward), 5¢-CAACGCCCAGCATACCCAGCAGT-3¢ for Q404H (forward), 5¢-CAACGCCCAGGCAACCCAG CAGT-3¢ for Q404A (forward), 5¢-TGAACCTCAGCT GGCACATCTA-3¢ for I282Q (reverse), ... proved to be important for the basal level of activation of PXR. The H407A mutant of the human 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 levels A Western blot analysis of cell lysates containing the human PXR constructs shows the presence of a protein of expected...

Ngày tải lên: 08/03/2014, 16:20

... 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,...

Ngày tải lên: 08/03/2014, 18:20

... is particularly effective for the task of classifying words into 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 decision is 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 ... each class, such as votes of nearest neighbors in the case of KNN or probabilities in the case of Naive B ayes. Step 1: For a new word w, a standard classifier proposes a set of most likely candidate...

Ngày tải lên: 08/03/2014, 21:20

... 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...

Ngày tải lên: 14/03/2014, 13:20

... purpose of the demonstration is 4-fold: 1) to give newcomers to the field of statistical machine translation an idea of the state -of- the-art; 2) to show 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 demonstration will be spread across at most 3 machines (Fig- ure 1): one for the live “instant translation” user interface, one for demonstrating the different com- ponents of the...

Ngày tải lên: 17/03/2014, 02:20

... relative to the size of the corpus. 184 Theoretical Evaluation of Estimation Methods for Data-Oriented Parsing Willem Zuidema Institute for Logic, Langu age and Computation University of Amsterdam Plantage ... 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 the trees in ... simple com- binations of the frequencies f 1 . . . f 4 . Observa- tions of these frequencies therefore do not add any extra information, and the problem of fi nd- ing the weights of the target grammar...

Ngày tải lên: 17/03/2014, 22:20

... 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...

Ngày tải lên: 22/03/2014, 23:20

Ngày tải lên: 28/03/2014, 11:20

Ngày tải lên: 31/03/2014, 06:20