Báo cáo khoa học: "A THREE-VALUED FEATURE INTERPRETATION OF NEGATION STRUCTURE DESCRIPTIONS" ppt

... set of all automata, i.e. IC*. This means that the set of feature structures that satisfy ~b is the largest upward-closed set of feature structures that do not satisfy @ (i.e. the set of feature ... solu- tion in a three-valued framework, for defining the seman- tics of feature structure descriptions including negation 3. This solution is a formalization of the...

Ngày tải lên: 24/03/2014, 02:20

... subtypes of relations are annotated. We use 75% of it to train SVM classifiers and the remaining to evaluate results. The aim of the first set of experiments is to examine the role of structure features. ... types of features. z Entity Positional Structure Features We define and examine nine finer positional structures between two entities (see Appendix). They can be m...

Ngày tải lên: 20/02/2014, 09:20

... context can lead to combinatorial explo- sion of the feature space. When the feature space is huge (e.g., in the order of tens of millions of features or even more), the SGC algorithm ex- ceeds ... values of y and an empty feature set. For each candidate feature in a predefined feature space, it computes the likelihood gain achieved by includ- ing the feature in the...

Ngày tải lên: 17/03/2014, 04:20

... identifi- cation of fragment ions. Indeed, we have previously demonstrated the application of this method to the determination of the glycan structure of a form of AFP [10]. However, identification of the ... analysis of the glycan structure [2,10]. Thus, it still remains challenging to determine the glycan structures of glyco- proteins present in serum at low levels, althou...

Ngày tải lên: 16/02/2014, 08:20

... been described as one of the mechanisms of this regulation. On the basis of the above findings, our research provides new insights into the role of exon 9 in the regulation of apoptosis and invasion ... the localization and function of occlu- din [13,14]. Overexpression of deletion mutants resulted in a lack of capability for membrane localiza- tion and induction of apoptosis...

Ngày tải lên: 18/02/2014, 18:20

... distribu- tions rather than bags of words diminishes the ef- fect of lexical variability. To the best of our knowl- edge, there is no previous research which utilizes the best features of both approaches for ... Contributions of this work are: − construction of hierarchical probabilistic model designed to discover the topic structures of all sen- tences. Our focus is on identify...

Ngày tải lên: 20/02/2014, 04:20

... composed of features like POS, the number of complements, category of each complement, and the position of comple- ments. In their view, structural disambiguation is simply another type of lexical ... adequate account of recur- sive syntactic structure is an essential component of any model of the behaviour. In this study, we tested a bigram POS tagger on different types of...

Ngày tải lên: 20/02/2014, 11:21

... that there is always a set of words which dominates most of the other words of the language in terms of their frequency of use. This is true both of written words and of spoken words. The short-term, ... rates (ER) of the 1,492 test trials. 4.1 Effect of Acoustic Vocabulary The choice of n-gram affects the performance of LID systems. Here we would like to see how...

Ngày tải lên: 20/02/2014, 15:20

... of Trigram language model: (c) probability of predicting the first target word in the target clump of given the final two words of the target clump of , (d) probability of predicting the rest of ... method but with a soft mistake-driven update rule, where the influence of each feature is weighted by the significance of its mis- take. The method is essentially a version of th...

Ngày tải lên: 20/02/2014, 15:20

... of English to CTL requires the definition of an appropriately restricted subset of English. We show how the limited semantic expressibility of CTL can be exploited to derive a hierarchy of ... sample of specifications in English, so as to identify linguistic constructions and usages typical of specification discourse. We currently have a corpus of around a hundred sentenc...

Ngày tải lên: 20/02/2014, 19:20