Báo cáo khoa học: "Word Epoch Disambiguation: Finding How Words Change Over Time" pdf

... Korea, 8-14 July 2012. c 2012 Association for Computational Linguistics Word Epoch Disambiguation: Finding How Words Change Over Time Rada Mihalcea Computer Science and Engineering University of North ... at words and how they change in time. Previous work that looks at diachronic language change works at a higher lan- guage level, and is not specifically concerned with...

Ngày tải lên: 23/03/2014, 14:20

... constructing prob- abilistic classifiers for word-sense disambiguation that offers advantages over previous approaches. Most pre- vious efforts have not attempted to systematically iden- tify ... disambiguation of the noun interest was performed. Interest was selected be- cause it has been shown in previous studies to be a dif- ficult word to disambiguate. We selected as the set of...

Ngày tải lên: 23/03/2014, 20:21

... Experiment 2: Yarowsky’s Words We also conducted translation on seven of the twelve English words studied in (Yarowsky, 1995). Table 5 shows the list of the words. For each of the words, we extracted ... the words having large values of probability ratio for each t in both BB and MB-B and found that BB obviously has more ‘relevant words than MB-B. Here ‘relevant words for t...

Ngày tải lên: 20/02/2014, 21:20

... the first response words for the stimulus words list (Kiss et al., 1973). Take the words eat and food for example. There is no direct path between the concepts of these two words in the taxonomy ... paradigmatic relations of words, to fully cover the complexity of contextual happenings of words. Since the word association norm captures both syntagmatic and pragmatic relations...

Ngày tải lên: 08/03/2014, 02:21

... surround- ing words, we consider all unigrams (single words) in the surrounding context of w. These unigrams can be in a different sentence from w. We perform fea- ture selection on surrounding words ... English words in the rule: c 1 , c 2 , and c 3 will represent the Chinese words “”, “”, and “” respectively. Similarly, e 1 , e 2 , e 3 , e 4 , and e 5 will represent the English...

Ngày tải lên: 08/03/2014, 02:21

... former uses some words around a target word, represented by n-word window. The latter uses some syntactic relations, say, verb-object, including necessarily a target word. However, there are some words ... and “Haga”. However, an associa- tion approach would make an error in deciding the sense, because “Police” and “force” tend to be a noise, from the point of view of an unordered set of...

Ngày tải lên: 08/03/2014, 04:22

... French words in these sen- tences. The left marginal, however, is not the same as the distribution of English words: English words that tend to produce several French words at a time are overrepresented ... has a French vocabulary of 57,802 words, and an English vocabulary of 40,809 words. We translated 100 randomly selected Hansard sentences each of which is 10 words or le...

Ngày tải lên: 08/03/2014, 07:20

... column 4 shows their dis- tributions. 'v' shows the number of polysemous verbs in the data. W in Table 2 shows the num- ber of nouns which co-occur with wp and wl. v n W shows the ... 4 shows the number of nouns which co-occur with wp ~ w2 and wp ~ w3, respectively. 'Correct' shows the performance of our method. 'Total' in the bottom of Table 4 shows ... 3...

Ngày tải lên: 08/03/2014, 21:20

... optim- isation was over a simple count of words in common in definitions, however, this meant that longer defin- itions were preferred over short ones, since they have more words which can contribute ... similar level over all content words in our corpus if test data was avilable, and we have no evidence to the contrary, this figure equates to 92.8% correct tagging over a...

Ngày tải lên: 17/03/2014, 07:20

... precision. Second, query words may have tightly related meanings with other words not in the query. Making use of these relations between words can improve retrieval recall. Overall, IR systems can ... contain ambiguous words (terms), which have multiple meanings. The ambiguities of these query words can hurt retrieval precision. Identifying the correct meaning of the ambiguous wor...

Ngày tải lên: 23/03/2014, 14:20