a machine learning approach for identifying diseasetreatment ppt

Ngày tải lên: 21/06/2014, 08:20

... pronoun ana npform NP form of the anaphor ana gramrole grammatical role of the anaphor ana agr agreement of the anaphor ana semclass* semantic class of the anaphor ante npform NP form of the antecedent ante ... 20) same agr same agreement of anaphor and antecedent? same gramrole same grammatical role of anaphor and antecedent? same semclass* same semantic class of anaphor and antecedent? Table 1: Features ... system’s performance on the manually annotated (gold standard) data with- out the semantic features. For the baseline, accuracy is significantly higher for the gold standard data than for the two...

Ngày tải lên: 17/03/2014, 06:20

... ante case grammatical case of antecedent 5. ante s depth the level of embedding in a sentence 6. ana gram func grammatical function of anaphor 7. ana npform form of anaphor 8. ana agree person, ... is based on the same as- sumptions as the former. The information content of a non-NP-markable is calculated as follows, based on a set of 553 Switchboard dialogues: For each word in the markable, ... language for data analysis and graphics. Journal of Computational and Graphical Statistics, 5:299–314. Kohavi, Ron & George H. John (1997). Wrappers for fea- ture subset selection. Artificial Intelligence...

Ngày tải lên: 23/03/2014, 19:20

... have typically been dealt with as part of the syntax (but cf. Kuno, Takami & Wu (1999) for an alterna- tive approach) . Early generative treatments used a WH-movement transformation (McCawley, 1998) to ... stage 4093/4242 = 96.5% for other systems to which we can compare them. We take this level of success as an indication of the feasibility of our data-driven, modular approach. Additionally, our approach has the advantage ... Statistical Mod- els for Natural Language Parsing. Ph.D. thesis, University of Pennsylvania, Philadelphia, PA. S. E. Fahlman. 1988. An empirical study of learning speed in back-propagation networks....

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Ngày tải lên: 14/08/2014, 14:21

... the Association for Machine Translation in the Americas (AMTA-2006). Christoph Tillmann, Stephan Vogel, Hermann Ney, Hassan Sawaf, and Alex Zubiaga. 1997. Accelerated DP-based search for statistical ... of the Association for Computational Linguistics. Simon Corston-Oliver, Michael Gamon, and Chris Brockett. 2001. A machine learning approach to the automatic eval- uation of machine translation. ... Evaluation with Machine Learning A good automatic evaluation metric can be seen as a computational model that captures a human’s de- cision process in making judgments about the ade- quacy and...

Ngày tải lên: 08/03/2014, 02:21

... were annotated with the types of financial transactions they are most related to. Paragraphs that did not fall into a category of interest were classified as “other”. The annotated paragraphs ... etc. 133 Maytag: A multi-staged approach to identifying complex events in textual data Conrad Chang, Lisa Ferro, John Gibson, Janet Hitzeman, Suzi Lubar, Justin Palmer, Sean Munson, Marc Vilain, and Benjamin ... semantic type of the phrase (for named entities), the phrase vocabu- lary, the distance to the target head, and local context (words and phrases). Our initial evaluation of this approach has given...

Ngày tải lên: 08/03/2014, 21:20

... problem-focused approach is accepted as a valid methodology for management research (Aram and Salipante, 2003). COST MANAGEMENT & ACCOUNTING FOR LEAN ENTERPRISES Womack and Jones (1996: 262) raise ... that an extended value stream approach to cost management will have the most significant impact on total cost. The adoption of Inter-organisational Cost Management ideas in an integrated manner ... combined in a specific area. The learning process was accelerated for all stakeholders, rapid knowledge transfer was enabled and practical application of some of the research ideas could be...

Ngày tải lên: 15/03/2014, 22:20

... not readily available (Zhao et al., 2010). In contrast, bilingual parallel data is in abundance and has been used in extracting paraphrase (Ban- nard and Callison-Burch, 2005; Zhao et al., 2008b; Callison-Burch, ... issues are also raised in (Zhao and Wang, 2010) about using automatic metrics: paraphrase changes less gets larger BLEU score and the evaluations of paraphrase quality and rate tend to be incompatible. To ... Monolingual machine translation for paraphrase generation. In EMNLP, pages 142–149. Shiqi Zhao and Haifeng Wang. 2010. Paraphrases and applications. In COLING (Tutorials), pages 1–87. Shiqi Zhao,...

Ngày tải lên: 23/03/2014, 14:20

... essential, as pattern-based approach is enhanced with the supervised machine learning. In this paper, we propose a novel approach to automatic synonym identification based on super- vised learning ... David Weir and Diana McCarthy. 2004. Characterising Measures of Lexical Distributional Similarity. Proc. of COLING 04, 1015–1021. 6 formalization of similarity-based approach would be essential, ... 786–774. Shachar Mirkin, Ido Dagan, and Maayan Geffet. 2006. Integrating pattern-based and distributional similarity methods for lexical entailment acquisition. Proc. of COLING/ACL 06, 579–586. Brian...

Ngày tải lên: 23/03/2014, 17:20

... give-cake big-cake … Figure 1. Attribute-value vector for syntactic relations Given that some types of information are not avail- able for certain instances, many attributes will have null values. ... only classified a few ex- amples (form 1 to 6). In Table 2 we show the accuracy of the theory learned for each verb, as well as accuracy achieved by two propositional machine learning algorithms ... a few are designed for specific applica- tions, such as MT. Existing multilingual approaches can be classified as (a) knowledge-based ap- proaches, which make use of linguistic knowledge manually...

Ngày tải lên: 23/03/2014, 18:20

... 1998) and Snowball (Agichtein and Gravano, 2000), because there is no gold-standard evaluation corpus available. We have adapted the evaluation method suggested by Agichtein and Gravano, i.e., ... data set. If at all possible, the training data should ex- hibit a skewed distribution of reports to events. Actually, such training data may be the only realis- tic chance for reaching a large ... In Proc. of ACL- 03, pages 224–231, Sapporo, Japan. R. Yangarber, R. Grishman, P. Tapanainen, and S. Hut- tunen. 2000. Automatic Acquisition of Domain Knowledge for Information Extraction. In...

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