Báo cáo khoa học: "Word Association and MI-Trigger-based Language Modeling" potx

... Word Association and MI-Trigger-based Language Modeling GuoDong ZHOU KimTeng LUA Department of Information Systems and Computer Science National University ... relationships between words are useful to language disambiguation and can be modeled efficiently by the MI-Trigger-based modeling approach. Introduction In natural language there always exist many ... windows...

Ngày tải lên: 23/03/2014, 19:20

... corpora. (The standard method of obtaining word association norms, testing a few thousand subjects on a few hundred words, is both costly and unreliable.) The , proposed measure, the association ... ratio, estimates word association norms directly from computer readable corpora, waki,~g it possible to estimate norms for tens of thousands of words. I. Meaning and Associati...

Ngày tải lên: 24/03/2014, 02:20

... phosphorylation may create an SH2 recognition site and thus may alter the binding affinities of S6K. In this study, and for the first time, we demonstrate receptor association and tyrosine phosphorylation of S6Ks. ... (PTB), Src homology 3 and WW, and have no pleckstrin homology (PH) domain, which would enable membrane association via lipid-binding. Instead, in their C-terminal re...

Ngày tải lên: 19/02/2014, 07:20

... number of other nodes (Barab´asi and Albert, 1999). In the se- mantic networks, such “hub” nodes correspond to basic and highly polysemous words such as make and money, and these words are likely to ... LSA- based and the cooccurrence-based word vectors better reflect associative similarity. 1 Introduction Recently, geometric models have been used to rep- resent words and their mea...

Ngày tải lên: 20/02/2014, 12:20

... stronK sense of de~a vu; the earliest natural language studies featured automatic extracting and information retrieval based on statistical, lexical and associational properties of keywords. Mechanical ... concerned with analysis of language at the sentence level. The most glamourous areas of natural language research are at levels above the sentence, concerned with dialogue...

Ngày tải lên: 21/02/2014, 20:20

... for English and few other languages with high accuracy. These belong to two main cate- gories based on machine learning (Bikel et al., 1997; Borthwick, 1999; McCallum and Li, 2003) and lan- guage ... locat- ing and classifying the names in a text. NER is an important task, having applications in informa- tion extraction, question answering, machine trans- lation and in most other Na...

Ngày tải lên: 08/03/2014, 01:20

... probability of a noun n and a verb v as the product of the joint probability of the noun and verb classes that n and v belong to, and the conditional probabilities of n and v given their classes, ... probability of a noun and a verb is expressed as the product of the joint probability of the noun class and the verb class which the noun and the verb respectively belong...

Ngày tải lên: 17/03/2014, 07:20

... (Turney, 2002; Pang and Lee, 2004)), min- ing texts for product reviews (e.g., (Yi et al., 2003; Hu and Liu, 2004; Popescu and Etzioni, 2005)), summarization (e.g., (Kim and Hovy, 2004)), in- formation ... study, Judges 1 and 2 indepen- dently annotated 32 words (138 senses). 16 words have both S and O senses and 16 do not (according to Judge 1). Among the 16 that do not have bo...

Ngày tải lên: 23/03/2014, 18:20

... p i p j t i v i otherwise (2) where u i and v i are arbitrary constants and t i is arbi- trary threshold. Using equation (1), we can estimate a similarity between the context of a target word and prototype context, and can ... composition, the) and p (is, make, at, home) as an example. In a matrix, a vertical and horizontal transition means a gap and is assigned a gap score. A d...

Ngày tải lên: 08/03/2014, 04:22

Ngày tải lên: 23/03/2014, 16:20