Báo cáo khoa học: "Supervised Noun Phrase Coreference Research: The First Fifteen Years" pptx
... as we move down the tree. Specifically, based on the corefer- ence decisions it has made in the first i− 1 levels of the tree, the algorithm determines at the ith level whether the ith NP should ... coordinate the pairwise classifi- cation decisions made by the model and construct a coreference partition. Another issue that surrounds the acquisition of the mention-pair mo...
Ngày tải lên: 07/03/2014, 22:20
... NPs to return to the user. If the parser never generates the correct sub-NP structure, then the system may return a non- sensical answer even though the correct dominating noun phrase has been ... original set. First, we extracted three word noun sequences from all the ambiguous NPs. If the last three chil- dren are nouns, then they became an example in our data set. If t...
Ngày tải lên: 23/03/2014, 18:20
... of the overall performance of the coreference system. On the other hand, if the model is too conservative, then only a small fraction of the truly non-anaphoric NPs will be identified, and so the ... that the recall of the coreference system would increase with the con- servativeness parameter. The reason is that we have no control over whether or how the anaphoricity...
Ngày tải lên: 31/03/2014, 03:20
Báo cáo khoa học: "Parsing Noun Phrase Structure with CCG" potx
... for the child nodes, depending on whether neither, the left, the right or both nodes span the entire NE. As an example, if the Air Force constituent were being joined with contract, then the ... combination with the parent node or the child nodes. For the former, one fea- ture is active when the node spans the entire entity, and another is active in other cases. Similarl...
Ngày tải lên: 31/03/2014, 00:20
Báo cáo khoa học: "Coordinate Noun Phrase Disambiguation in a Generative Parsing Model" doc
... and the head of the phrase is (usu- ally) the rightmost noun in the phrase. Thus, when n2 is immediately followed by another noun the de- fault is to assume nominal modifier coordination and the ... which, as in the above example, cover the same span of words and differ only in whether the coordi- nate noun phrase is flat as in (c) or structured as in (d), the cho...
Ngày tải lên: 31/03/2014, 01:20
Báo cáo khoa học: "A Hierarchical Phrase-Based Model for Statistical Machine Translation" pptx
... these problems that does not interfere with the strengths of the phrase- based approach, but rather capitalizes on them: since phrases are good for learning reorderings of words, we can use them ... S 1 X 2 (13) S → X 1 , X 1 (14) These give the model the option to build only par- tial translations using hierarchical phrases, and then combine them serially as in a standard phras...
Ngày tải lên: 17/03/2014, 05:20
Báo cáo khoa học: "Development of Computational Linguistics Research: a Challenge for Indonesia" pptx
... conducting their linguistics researches as stated in Muhadjir (1995), only few of them really make use of the technology. While, on the other hand, most computer scientists tend to use the practical ... analysis of Indonesian newspapers. There was also similar work conducted the MMTS project (will be described later, in the following section); however, the result of the group’s...
Ngày tải lên: 17/03/2014, 07:20
Tài liệu Báo cáo khoa học: "Identifying Noun Product Features that Imply Opinions" pdf
... the word “are”. Among these extracted opinion words for the feature noun, if some belong to the positive opinion lexicon and some belong to the negative opinion lexicon, we conclude the noun ... real- life datasets of reviews. Table 1 shows the domains (based on their names) of the datasets, the number of sentences, and the number of noun features. The first t...
Ngày tải lên: 20/02/2014, 05:20
Tài liệu Báo cáo khoa học: "Arabic Cross-Document Coreference Detection" doc
... per- formed between the baseline system’s list and the lists produced by the other systems to create lists of pairs that include the information in the base- line. However, each of the following systems’ outputs ... test in the English space using the projected enti- ties (A , B ). The exact string match test is done exactly as in the baseline system, using the set o...
Ngày tải lên: 20/02/2014, 09:20
Tài liệu Báo cáo khoa học: "Machine Learning for Coreference Resolution: From Local Classification to Global Ranking" ppt
... each pre-selected coreference system. The feature value is 1 if the corresponding coreference system generated the candidate partition and 0 otherwise. These features enable the learner to learn ... non-coreferent noun phrases. Hence, the number of instances created by this method is quadratic in the number of NPs in the associated text. The large number of instances can...
Ngày tải lên: 20/02/2014, 15:20