Báo cáo khoa học: "Finding non-local dependencies: beyond pattern matching" pdf

... of "book." 2.2 Patterns Our first goal is to find lexical patterns that tend to indicate part-whole relations. Following Hearst [2], we find possible patterns by taking two words ... how the rankings were obtained.) Table 2 shows patterns A and B clearly outper- form patterns C, D, and E. Although parts occur in all five patterns~ the lists for A and B are predom- inately .....

Ngày tải lên: 20/02/2014, 19:20

... from our patterns, making the patterns more general. 3 Pattern extraction and matching After converting the Penn Treebank to a dependency treebank, we first extracted non-local dependency patterns. ... all non-local patterns from the Penn Treebank, which resulted in 987 different (pattern, non-local dependency) pairs. As described in Section 3, after cleaning up we took 16 of the most...

Ngày tải lên: 23/03/2014, 19:20

... combine these syntactic patterns with the word-scoring function from above. If a pattern is found, only the head of the pattern (i.e., adverbs, main verbs for passive patterns, nouns and quantifiers ... score. The scoring function adding syntactic patterns (asp) for each sentence is: asp(S) = tanh heads S  i=0 Score(w i ) (6) where heads S = the number of pattern heads found in sentence...

Ngày tải lên: 20/02/2014, 09:20

... translations of semantically similar words in multiple bilingual dictionaries. Secondly, by looking at patterns specifically designed to fil- ter out antonyms. They evaluate on a set of 80 synonyms and ... various language pairs. However, we did not assess the quality of the alignment itself which would be beyond the scope of this paper. As mentioned earlier, we did not include any linguistic...

Ngày tải lên: 20/02/2014, 12:20

Ngày tải lên: 20/02/2014, 16:20

... publications, microblog posts are particularly diverse and noisy. To find top- ics that have bursty patterns on microblogs, we propose a topic model that simultaneous- ly captures two observations: ... about any topic to be shared with the general public. The textual content coupled with the temporal patterns of these microblog posts pro- vides important insight into the general public’s in- t...

Ngày tải lên: 07/03/2014, 18:20

... 90% cross-validated accuracy on this task. In contrast, we find deceptive opinion spam detection to be well beyond the capabilities of most human judges, who perform roughly at-chance—a finding that is consis- tent

Ngày tải lên: 07/03/2014, 22:20

... original non-local formulation of synchronous TAG (Shieber and Schabes, 1990) because the non-local inheritance of links on the derived tree is difficult to implement, and because the non-local ... fln:press•(S) • , . l I , o. fin 1 :going(VP) I [ fin 1 :vai(VP) fln:supp.(VP) This sort of non-local non-isomorphic transfer cannot be handled in a synchronous TAG that ha...

Ngày tải lên: 08/03/2014, 06:20

... of both a pattern- based and a vector-based systems, and by filtering incorrect entries with a supervised SVM classifier. (The pattern- based approach uses a set of manually- constructed patterns ... baseline, a system based on distributional similarity. 4.1 Step 1 - Pattern- Based Pair Extraction The first step of our algorithm uses a pattern- based approach to get a list of potential entai...

Ngày tải lên: 08/03/2014, 21:20

... Sebban. 2006. Learning stochastic edit distance: Application in handwritten character recognition. Pattern Recognition, 39(9). Don Ringe, Tandy Warnow, and Ann Taylor. 2002. Indo-european and computational ... 1950). Second, we should look at languages closely related to Greek and Malay, to see if similar patterns hold there, too. Some authors have attempted to automatically detect cognate...

Ngày tải lên: 17/03/2014, 00:20