Báo cáo khoa học: "Automatically Evaluating Text Coherence Using Discourse Relations" docx

... the discourse coherence of text. Our model assumes that coherent text implicitly favors certain types of discourse relation tran- sitions. We implement this model and apply it towards the text ... (i.e., signaled by discourse connectives such as because) discourse relations, but also implicit (i.e., inferred by readers) ones. 3 Using Discourse Relations To utilize discours...

Ngày tải lên: 23/03/2014, 16:20

... au- tomatic sense prediction for discourse relations in newspaper text. For our experiments, we use the Penn Discourse Treebank, the largest exist- ing corpus of discourse annotations for both ... Penn Discourse Treebank For our experiments, we use the Penn Discourse Treebank (PDTB; Prasad et al., 2008), the largest available annotated corpora of discourse relations. The PDTB con...

Ngày tải lên: 30/03/2014, 23:20

... ELABO- RATION or NONE-OF-THE-ABOVE, even when the discourse relations are not explicitly signalled by discourse markers. 2.2 Discourse relation definitions The discourse relations we focus on are defined at ... computed using maximum likelihood estimators, which are smoothed using the Laplace method (Manning and Sch¨utze, 1999). For each discourse relation pair , we train a word-p...

Ngày tải lên: 20/02/2014, 21:20

... approximation of discourse re- lations between different utterances in texts. Following the idea that every pair of events comes with preferences regarding the range and frequency of discourse relations ... acquisition of discourse relations, with encouraging preliminary results: Large collections of parsed text are used to assess distributional pro- files of relation words that indica...

Ngày tải lên: 16/03/2014, 20:20

... and textual RMs. Thematic RMs are experts concerning the contents of a text (the provided examples, such as "Goal-expert" or "Refusal-expert" belong to this type). Textual ... structures needed to account for knowledge processing have been proposed in the general context of modeling discourse understanding (e.g., Allen 1981; Cohen 1981; Dyer 1982; Wilensky 1980)...

Ngày tải lên: 18/03/2014, 02:20

... Automatically Creating Bilingual Lexicons for Machine Translation from Bilingual Text DavideTurcato Natural Language Lab School of Computing Science Simon Fraser University ... existing Ma- chine Translation system, by extracting bilin- gual entries from aligned bilingual text. The proposed method only relies on the resources already available in the MT system itself. ... bilingu...

Ngày tải lên: 08/03/2014, 06:20

... belonging to a category, construct context vectors of classified terms, and associate categories to previously unclassified terms de- pending on the similarity of their context (Tanev and Magnini, 2006). ... Section 3.2) it is not possible to construct a context vector or determine the replacement fit. Unsupervised methods use clustering of word- context vectors (Lin, 1998), co-occurrence (Yang...

Ngày tải lên: 20/02/2014, 04:20

... parameter tun- ing. 1 Introduction Given a piece of text, sentiment classification aims to determine whether the semantic orientation of the text is positive, negative or neutral. Machine learn- ing ... the movie review data and an average of 90% on the multi-domain sentiment dataset. Further- more, using feature augmentation and selec- tion according to the information gain criteria for...

Ngày tải lên: 20/02/2014, 04:20

... accuracy of text categoriza- tion. For the Na¨ıve Bayes classifier this increase is significant. 1 Motivation In the process of automatic classifying documents into several predefined classes – text categorization (Sebastiani, ... – text documents are usually seen as sets or bags of all the words that have appeared in a document, maybe after removing words in a stop-list. In this paper we...

Ngày tải lên: 20/02/2014, 16:20

... English text to sign language (and hence physical presence is not an issue) we concentrate on the syntactic uses of signing space. 3 System Architecture The architecture of the English text to ... parsing, 2. Discourse Representation Structure (DRS) generation, 3. Semantic transfer, 4. Generation of HamNoSys SL phonetic descriptions, as illustrated in Figure 1. 3.1 Syntactic Parsing Eng...

Ngày tải lên: 20/02/2014, 16:20