Báo cáo khoa học: "Word Sense Disambiguation using Optimised Combinations of Knowledge Sources" ppt

... scores simply using the first sense (in WordNet) of the target as the real sense. It is no doubt that the skewed distribution of word senses in the corpora (the first sense of- ten captures ... hub of each sense of the target, and we don’t keep track of other context words. In other words, after the computation of lexical hub of the target, we can immediately produ...

Ngày tải lên: 08/03/2014, 02:21

... prepared for each sense of the target word. Step 3. Find a summation of similarity between each prototype and input path for each sense. Step 4. Select the sense with the maximum valueof the summation. We ... would seem useful in deciding the sense of “fire”, and serve as clue to leading the sense to “go off or discharge”. It seems that there is no clue to an- other sense. For...

Ngày tải lên: 08/03/2014, 04:22

... each sense Sense 1 longtemps de UR quelques denx 1 plus trois Sense 2 le la l' ce les 1968 Comnmn informant values for each sense Pr(English [Sense 1) Pr(English [ Sense ... one bit of information about the translation of that word. Since the entropy of the transla- tion of a common word can be as high as five bits, there is reason to hope that usi...

Ngày tải lên: 08/03/2014, 07:20

... ‘gongchang’ corresponds to the sense of ‘factory’ and ‘zhiwu’ corresponds to the sense of ‘vegetation’). 1 Yarowsky (1995) proposes a method for word sense (translation) disambiguation that is ... Chinese translation of the ambiguous English word, given an English sentence which contains the word. Word translation disambiguation is actually a special case of word se...

Ngày tải lên: 20/02/2014, 21:20

... system using the ISI ReWrite decoder (Germann, 2003). Though they acknowledged that directly using English transla- tions as word senses would be ideal, they instead predicted the HowNet sense of ... array of features that are not limited to the lo- cal context of w, and some of these features may not be used by state -of- the-art statistical MT systems. To perform translation,...

Ngày tải lên: 08/03/2014, 02:21

... of English senses and a set of Spanish senses that are related. Each cluster represents a concept. A particular concept is formed by the set of Spanish senses in the cluster and the English senses ... them. The relevant English senses for any Span- ish sense is given by its . Therefore, the union of the s of all the Spanish senses in the cluster forms the set of English senses f...

Ngày tải lên: 08/03/2014, 04:22

... 5 Word Sense Disambiguation We used the result of our clustering analysis, which consists of pairs of collocations of a distinct sense of a polysemous verb and a noun. Let v has senses vl, ... the meaning of the verb within the sentence can be determined ac- cordingly, because a set of the nouns characterises one of the possible senses of the verb. The basic as...

Ngày tải lên: 08/03/2014, 21:20

... {x i } n i=1 be the set of context vectors of oc- currences of all entity mention pairs, where x i repre- sents the context vector of the i -th occurrence, and n is the total number of occurrences of all entity ... the square roots of the sum of the rows of A. This is to take into account the different spread of the various clusters (points belonging to more rarified cluste...

Ngày tải lên: 20/02/2014, 12:20

... independent nature of the approach. 1 Introduction Terms are the lexical units to represent the most fundamental knowledge of a domain. Term ex- traction is an essential task in domain knowledge acquisition ... frequently in a few documents of a domain, it is likely a term”. Limited distribution information of term candi- dates in different documents often limits the abil-...

Ngày tải lên: 08/03/2014, 01:20

... 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 target class to other likely candidates. Thus, using ... as background lexical knowledge for processing the semantics of words and documents. However, maintaining a thesaurus so that it sufficiently covers the lexicon of novel text data...

Ngày tải lên: 08/03/2014, 21:20