Báo cáo khoa học: " Word Sense Disambiguation in Untagged Text based on Term Weight Learning" ppt

... Proceedings of EACL '99 Word Sense Disambiguation in Untagged Text based on Term Weight Learning Fumiyo Fukumoto and Yoshimi Suzukit Department of Computer Science and Media Engineering, ... that it solely relies on human intuition for identifying different senses of a word, i.e. the hu- man editor has to determine, by her/his intuition, how many senses a wor...

Ngày tải lên: 08/03/2014, 21:20

... and LP on word “use”. (a) only one labeled example for each sense of word “use” as training data before sense disambiguation (◦ and ⊲ denote the unlabeled examples in SENSEVAL-3 training set ... any point in {B 0 ∼ B 8 }, regardless of the intrinsic structure in data: A 9 ∼ A 10 and B 9 ∼ B 10 are closer to points in lower moon than to points in upper moon. In other wo...

Ngày tải lên: 23/03/2014, 19:20

... lexical cohe- sion based on edge-counting techniques is a good way of unsupervisedly disam- biguating senses. 1 Introduction Word Sense Disambiguation (WSD) is generally taken as an intermediate ... complexity of contextual happenings of words. Since the word association norm captures both syntagmatic and pragmatic relations in words, we transform the context words of the...

Ngày tải lên: 08/03/2014, 02:21

... 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 by including a unigram only if ... and there is a one-to-one corre- spondence between the non-terminals in γ and α in- dicated by co-indexation. Hence, γ and α always have the same number of non-terminal symbols. For insta...

Ngày tải lên: 08/03/2014, 02:21

... obtained the experimental results on 7 verbs in SENSEVAL-1 3 . In our exper- iment, for all sentences including target word in the training and test corpus of SENSEVAL-1, we make a parsing using ... obtained from an input sentence as the context of a target word. The general intuition for WSD is that words with similar context have the same sense (Charniak, 1993; Lin, 1997). Tha...

Ngày tải lên: 08/03/2014, 04:22

... a sense- disambiguation component that assigns sense labels to French words. If pren- dre is labeled with one sense in the context of ddcision but with a different sense in other contexts, ... assign- ing senses to words. An instance of a word is as- signed a sense by asking a question about the con- text in which the word appears. The question is constructed...

Ngày tải lên: 08/03/2014, 07:20

... performs word sense disambiguation on all content words in free text by combining different knowledge sources: semantic preferences, dictionary definitions and sub- ject/domain codes along with ... definition in a dictionary. The optim- isation was over a simple count of words in common in definitions, however, this meant that longer defin- itions were preferred over sh...

Ngày tải lên: 17/03/2014, 07:20

... terms. 2 http://lemurproject.org/indri/ 275 4 Word Sense Disambiguation In this section, we first describe the construction of our WSD system. Then, we propose the method of assigning senses to query terms. 4.1 Word sense disambiguation ... the inte- gration of sense synonym relations into our model. 5.1 Incorporating senses as smoothing With the method described in Section 4...

Ngày tải lên: 23/03/2014, 14:20

... Comparison to Previous Work Many researchers have avoided characterizing the inter- actions among multiple contextual features by consider- ing only one feature in determining the sense of ... distribution of sense tags in the data set is presented in Table 1. We now turn to the selection of individually infor- mative contextual features. In our approach to disam- biguatio...

Ngày tải lên: 23/03/2014, 20:21

... existing methods based on ‘Monolingual Bootstrapping’. 1 Introduction We address here the problem of word translation disambiguation. For instance, we are concerned with an ambiguous word in ... Bilingual Bootstrapping 3.1 Overview Instead of using Monolingual Bootstrapping, we propose a new method for word translation disambiguation using Bilingual Bootstrapping. In t...

Ngày tải lên: 20/02/2014, 21:20