a topicmodel based approach

... presence or absence of affiliations with medical schools. The goal of Phase II was to conduct a quantitative analysis aimed at evaluating the impact of a wide range of patient and facility characteristics ... from the Phase II analysis. Our analytic approach closely resembles the approach that we took in the Phase II analysis. The analysis was structured to yield clear, policy-relevant, practical conclusions ... each patient was as- signed the average value for each characteristic (the “unadjusted average allocation”) with the simulated allocation that occurs when a characteristic of interest (e.g., health...

Ngày tải lên: 17/02/2014, 11:20

... disease plays a key role in inducing plasma leakage, shock and hemorrhagic manifestations. Currently, there are no vaccines available against dengue virus, although several tetravalent live-attenuated ... World Health Organization, updated February 2006. Type of vaccine Pharmaceutical company or research group Status of development Live attenuated tetravalent vaccine Sanofi-Pasteur ⁄ Mahidol Phase ... mutant US Food and Drug Administration Preclinical Tetravalent E-NS1 fusion protein subunit Hawaii Biotech Preclinical DNA and recombinant modified vaccinia Ankara National Institute of Health...

Ngày tải lên: 19/02/2014, 00:20

... integrated into a phrase- based decoder serving as additional distortion fea- tures. We evaluated our approach on large-scale Japanese-English and English-Japanese machine translation tasks, and ... ranking model is auto- matically derived from word aligned parallel data with a syntactic parser for source lan- guage based on both lexical and syntactical features. We evaluated our approach ... Quirk, Arul Menezes, and Colin Cherry. 2005. De- pendency Treelet Translation: Syntactically Informed Phrasal SMT. In Proc. ACL, pages 271-279. A. Ramanathan, Pushpak Bhattacharyya, Jayprasad Hegde,...

Ngày tải lên: 19/02/2014, 19:20

... effectiveness of a fea- ture based approach with the use of a state- of-the-art sequential learning technique that has proven successful for tasks such as “email act classification”. Our evaluation demonstrates ... investigate the use of state-of-the-art se- quential learning techniques that have proven suc- cessful for email act classification in comparison with a feature based approach. Our evaluation ... evaluated the feature based approach across all three dimensions and demonstrate that statistically significant improvements are achieved on all dimensions by adding context oriented fea- tures....

Ngày tải lên: 20/02/2014, 12:20

... is based on an axiomatic rather than a gen- erative view of grammar, (ii) it uses a TAG-like grammar in which the basic linguistic units are trees rather than categories and (iii) it assumes a flat ... a Constraint -Based Approach Claire Gardent CNRS LORIA, BP 239 Campus Scientifique 54506 Vandoeuvre-les-Nancy, France claire.gardent@loria.fr Stefan Thater Computational Linguistics Universit¨at des Saarlandes Saarbr¨ucken, ... variable while a neutral node variable is a variable that may not be identified with any other node variable. Formally, polari- ties are used to define the class of saturated mod- els. A saturated...

Ngày tải lên: 20/02/2014, 18:20

... The Attack Planner enables the user to state plan goals, launch the planner and view the attack plans generated. For example, a user can state the goal “An external user with no initial access ... users a deep analysis of the state of their network, particu- larly by demonstrating feasible attack plans that could be launched against it. Widespread application of CycSecure and adoption ... American Association for Artificial Intelli- gence (www.aaai.org). All rights reserved. “Cyc” is registered trademark, and “CycSecure” is a trademark, of Cycorp, Inc. about what computers are...

Ngày tải lên: 05/03/2014, 23:20

... regarded as separate languages, which are mutually intelligible, but occasionally dif- fer in orthography/pronunciation and vocabulary: Bahasa Malaysia (lit. ‘language of Malaysia’) and Bahasa ... boleh menampung kelas seramai 30 pelajar, selain bekalan-bekalan lain seperti 500 khemah biasa, barang makanan dan ubat-ubatan untuk mangsa gempa Sichuan. ref1: Mercy Relief has sent 17 special tents ... make kereta api and keretapi in Bahasa Indonesia and Bahasa Malaysia, respectively, both meaning ‘train’. As in English, Malay compounds are written separately, but some stable ones like kerjasama/‘collaboration’...

Ngày tải lên: 07/03/2014, 22:20

... available after realization has completed, and thus all surface-oriented and morphological features are available. Of course, we also assume that all other features are still available at that time, not ... previous section has presented a corpus- based static analysis of factors affecting VPE. In this section, we take a computational approach. We would like to use a trainable module that learns rules ... be- ing no adjuncts at all. This information can be annotated reliably at a satisfactory level ( ). In-Quotes (qut): Is the antecedent and/or the candidate within a quoted passage, and if yes,...

Ngày tải lên: 08/03/2014, 05:20

... Hyderabad, India, January. Gerald Gazdar. 1988. Applicability of indexed grammars to natural languages. In U. Reyle and C. Rohrer, editors, Natural Language Parsing and Linguistic Theories, pages ... categorial grammar: An ap- proach to gap resolution in analytic-language trans- lation. In Proceedings of The Third International Joint Conference on Natural Language Processing, volume 1, pages ... with a memory mechanism. In the memory mechanism, fillers and gaps are stored as modalities that modalize a syntactic category. The fillers and the gaps are then associated in the coordination and...

Ngày tải lên: 08/03/2014, 21:20

... more appropriate. Such an approach allows taking into account in a flexible and natural way the variety of knowledge sources and processing activities that are involved in importance evaluation. ... definition. A procedural, knowledge -based approach comprising a set of rules that can assign relative importance values to the different parts of a text and can resolve or explain conflicting evaluations ... paper we focus on the notion of importance from a computational standpoint, and we propose a procedural, rule -based approach to importance evaluation. This novel approach is supported by a...

Ngày tải lên: 09/03/2014, 01:20

... 691-698. Kenji Sagae and Alon Lavie. 2006. Parser Combination by Reparsing. In Proceedings of NAACL 2006, pages 129-132. Yoshimasa Tsuruoka, Jun’ichi Tsujii, and Sophia Anani- adou. 2009. Fast Full Parsing ... similarly as the standard shift-reduce parsing algorithm. In the training phase, each target-style parse tree in the training data is transformed into a binary tree (Charniak et al., 1998) and then ... and Marcu, 2006), and the method for annotation adap- tation of word segmentation and POS tagging (Jiang et al., 2009). As one of the most related works, Jiang and Liu (2009) present a similar approach...

Ngày tải lên: 17/03/2014, 00:20

... two advantages. One, sparse data problem can be addressed appropri- ately because standard language corpus is used. Two, the phonetic mapping models are as stable as standard language. In chat ... Thus there is a social urgency to under- stand online chat language text. Chat language is anomalous and dynamic. Many words in chat text are anomalous to natural language. Chat text comprises ... in standard language as follows. ( ) () ∑ × × = i iislc slc pm AApsAfr AApsAfr AAob ),()( ),()( ),(Pr (2) In Equation (2) }{ i A is the character set in which each element i A is similar...

Ngày tải lên: 17/03/2014, 04:20

... a head feature, it percolates up to any phrase projected from that head, and allows the PHON value of the lexical head to be accessed at that projection; i.e., headed phrases will also bear a specification ... Phonology: A Constraint -Based Approach. Studies in Natural Language Processing. Cambridge University Press. Alan W. Black and Paul Taylor. 1997. The festival speech synthesis system. Technical Report TR-83, ... Place, Edinburgh EH8 9LW, UK ewan@cogsci.ed.ac.uk Abstract The paper develops a constraint -based the- ory of prosodic phrasing and prominence, basedonanHPSGframework,withan implementation in ALE....

Ngày tải lên: 17/03/2014, 07:20

... English validate the general approach. 1 Introduction Current research on natural language parsing tends to gravitate toward one of two extremes: robust, partial parsing with the goal of broad data ... results in a highly-efficient parsing architecture that is realized as a cascade of finite-state transducers and that pursues a leftmost longest-match pattern- matching strategy at each level of analysis. Despite ... The fragmentary and partially ill- formed nature of such spoken data makes them harder to analyze than written data such as the Penn treebank typically used as gold standard. It should also be...

Ngày tải lên: 17/03/2014, 07:20

Ngày tải lên: 23/03/2014, 18:20

Ngày tải lên: 23/03/2014, 19:20

Ngày tải lên: 23/03/2014, 19:20

Ngày tải lên: 23/03/2014, 19:20