Báo cáo khoa học: "A Statistical Model for Domain-Independent Text Segmentation" pot

... of the Association for Computational Linguistics, pages 469–477, Jeju, Republic of Korea, 8-14 July 2012. c 2012 Association for Computational Linguistics A Statistical Model for Unsupervised ... present a novel model of transliteration min- ing defined as a mixture of a transliteration model and a non-transliteration model. The transliteration model is a joint source channel...

Ngày tải lên: 19/02/2014, 19:20

... lexicon as well as potential Hebrew word forms for each Ugaritic word. By intersecting two such FSAs and mini- mizing the result we can efficiently represent all potential Hebrew words for a particular ... similar goals, it typically builds on information or resources unavailable for ancient texts, such as comparable corpora, a seed lexi- con, and cognate information (Fung and McKe- own,...

Ngày tải lên: 17/03/2014, 00:20

... by a statistical model. This is a new approach for domain-independent text segmentation. Previous approaches usually used lexical cohesion to seg- ment texts into topics. Kozima (1993), for exam- ple, ... respec- tively. 2 Statistical Model for Text Segmentation We first define the probability of a segmentation of a given text in this section. In the next section, we then d...

Ngày tải lên: 31/03/2014, 04:20

... auto- radiography while the other gel was used for western blot analysis as described above. Statistical analyses Statistical comparisons were performed by analysis of means using unpaired Student’s ... University) for excellent technical assistance. This work was supported by grants from the Swedish Foundation for Health Care Sciences and Allergy Research, the Swedish Research Coun...

Ngày tải lên: 07/03/2014, 21:20

... con- texts in a precise manner. In the following sub-sections, we will detail two sub-models: the expert matching model P(c|e) and the evidence matching model P(e|q). 3.2 Expert Matching Model ... different qualities. For example, both topic “css test” and “test suite” are the bi-gram matching for query “css test suite”; however, the former might be more informative. To mode...

Ngày tải lên: 08/03/2014, 01:20

... use a nearly identical model to the FLAT model, but instead of having a single m variable, we have three: one for IE, one for Austronesian and one for “all languages.” For a general tree, we ... in Figure 3 (on a log-scale for the x-axis). The two best-performing models are the two hier- archical models. The flat model does significantly worse and the random model does terribly...

Ngày tải lên: 08/03/2014, 02:21

... of text. We report on the first data- driven models for labeling clauses according to the type of SE they introduce. SE classifi- cation is important for discourse mode iden- tification and for ... predicates like force generally introduce E-type SEs: (7) I forced [John to run the race with me]. (8) * I forced [John to know French]. The feature force-PREV is extracted if a member of the f...

Ngày tải lên: 08/03/2014, 02:21

... set, which nobody could see beforehand. 3 A Sketch of the Parsing Model The parsing model builds on Model 1 of (Collins 97); this section briefly describes the model. The parser uses a lexicalized ... tional information should provide strong cues to parse structure; an important question is how to parameterize a statistical parsing model in a way that makes good use of infl...

Ngày tải lên: 08/03/2014, 06:20

... Semitic texts appear in three forms: (i) consonantal texts do not incorporate any short vowels but ma- ttes lectionis, 2 e.g. Arabic (ktb) for /katab/, /kutib/and/kutub/, but (kaatb) for/ kaatab/ ... Their for- realism appears in (2). (2) TwO-LEVEL FORMALISM LLC - LEX RLC LSC - SURF - RSC where LLC LEX RLC LSC SURF RSC = left lexical context = lexical form = right l...

Ngày tải lên: 08/03/2014, 07:20

... of the Association for Computational Linguistics, pages 885–894, Portland, Oregon, June 19-24, 2011. c 2011 Association for Computational Linguistics A Discriminative Model for Joint Morphological ... probabilis- tic context-free grammar (PCFG) for parsing. At de- coding time, the two models are combined as a prod- uct of experts. Goldberg and Tsarfaty (2008) pro- pose a generative...

Ngày tải lên: 17/03/2014, 00:20