Tài liệu Báo cáo khoa học: "An Equivalent Pseudoword Solution to Chinese Word Sense Disambiguation" ppt

... Linguistics An Equivalent Pseudoword Solution to Chinese Word Sense Disambiguation Zhimao Lu + Haifeng Wang ++ Jianmin Yao +++ Ting Liu + Sheng Li + + Information Retrieval Laboratory, School ... approach based on Equivalent Pseudowords (EPs) to tackle Word Sense Disambiguation (WSD) in Chinese language. EPs are par- ticular artificial ambiguous words, which...

Ngày tải lên: 20/02/2014, 12:20

... verbs. For each word, training and test instances tagged with WordNet senses are provided. There are an av- erage of 7.8 senses per target word type. On average 109 training instances per target word are ... Stevens. Supervised sense tagging using support vector machines. In Proceedings of Senseval-2, Sec- ond International Workshop on Evaluating Word Sense Disambiguation Systems,...

Ngày tải lên: 20/02/2014, 16:20

... which Meis2e is unable to contact DNA. Where Meis2 is recruited without the need for it to bind to DNA, such as via Hox–Pbx complexes, Meis2e might be expected to be better able to interfere. Even ... mapped to the Prep1 Hth domain, and specifically to a leucine-rich motif in homology region 1 (hr1) [37]. To test whether Pbx1 or p160Mybbp1 interaction might contribute to the...

Ngày tải lên: 16/02/2014, 15:20

... average length parameter λ. As long phrases lead to spar- sity, we set λ to a relatively small value to allow us to bias against overly long phrases 4 . P m1 is the word- based Model 1 (Brown et al., 1993) ... according to the model. By choosing this probability appropriately, we can incorporate prior knowledge of what phrases tend to be aligned to each other. We calculate P ba...

Ngày tải lên: 20/02/2014, 04:20

... extends DOP1 to unsupervised parsing (Bod 2006). Its key idea is to assign all unlabeled binary trees to a set of sentences and to next use (in principle) all subtrees from these binary trees to parse ... important to realize that there is an implicit assumption in DOP that all possible derivations of a parse tree contribute equally to the total probability of the parse tree. Th...

Ngày tải lên: 20/02/2014, 12:20

... with Topics 1-50 (title field), AP8889 with Topics 101-150 (title field) and WSJ9092 with Topics 201-250 (description field). All the collections are stemmed, and stop words are removed, prior to ... single word is represented by a row vector and a column vector that capture the information before and after the word, respectively. In some applications, direc- tion sensitivity is ignored to...

Ngày tải lên: 20/02/2014, 04:20

... ∈= is a word sense assignment function that gives the word senses numbered i of the word x. I x is the word sense indexing function of x that gives an index to each sense of the word x. ... coarse-grained senses in WordNet are adjusted sense based on corpus for SENSEVAL task. In order to evaluate the practical word sense disambiguation systems, the senses in...

Ngày tải lên: 20/02/2014, 16:20

... properties of WordNet. We also empirically demon- strate that this automatically derived set of meanings groups senses into an adequate level of abstraction in order to perform class-based Word Sense ... broad- coverage models. It seems that many word sense distinctions are too subtle to be captured by auto- matic systems with the current small volumes of word sense annotated exam...

Ngày tải lên: 24/03/2014, 03:20

... significance. L1 words that translate into the same L2 word are grouped into clusters; SALAAM identifies the appropriate senses for the words in those clusters based on the words senses’ proximity in WordNet. ... factors by examining the yielded PR values in . 5.1 Number of Senses The test items that possess many senses, such as art (17 senses), material (16 senses), mouth (10 senses) and pos...

Ngày tải lên: 08/03/2014, 04:22

... that cone photoreceptors recovered light sensitivity following photobleaching when the cone photoreceptors are con- nected with other retinal cells, but not with the RPE; rod photoreceptors did not ... 3211–3218. 22 Baylor DA (1987) Photoreceptor signals and vision. Proctor lecture. Invest Ophthalmol Vis Sci 28, 34–49. 23 Kawamura S & Tachibanaki S (2008) Rod and cone photoreceptors: mole...

Ngày tải lên: 14/02/2014, 14:20