Báo cáo khoa học: "Iterative Scaling and Coordinate Descent Methods for Maximum Entropy" pdf

... Singapore, 4 August 2009. c 2009 ACL and AFNLP Iterative Scaling and Coordinate Descent Methods for Maximum Entropy Fang-Lan Huang, Cho-Jui Hsieh, Kai-Wei Chang, and Chih-Jen Lin Department of Computer ... difficult to understand them and see the differences. In this paper, we create a general and unified framework for IS methods. This framework also connects IS and...

Ngày tải lên: 23/03/2014, 17:20

Ngày tải lên: 08/03/2014, 05:21

... generated under standardized conditions is critical for understanding dynamic cellular processes. We report strategies for error reduction, and algorithms for automated data processing and for establishing ... How- ever, before this approach can be used for biomedical applications, standardized procedures for data acquisi- tion, reliable normalization methods and generally...

Ngày tải lên: 19/02/2014, 07:20

... trees, bag-of-words, POS tags and predicate argument structures (PASs) for question classification and answer re-ranking. We define new tree representations for both simple and nested PASs, i.e. PASs ... Republic, June 2007. c 2007 Association for Computational Linguistics Exploiting Syntactic and Shallow Semantic Kernels for Question/Answer Classification Alessandro Moschitti U...

Ngày tải lên: 20/02/2014, 12:20

Ngày tải lên: 21/02/2014, 20:20

... paths for l = 4 and 2 paths for l = 5). Finally, the sense with the highest score (i.e. fruit 1 n ) is returned. 3 Experiments To test and compare the performance of our al- gorithm, we performed ... we perform: E := E ∪ {(s, s  )}; iii) For each sense s ∈ V , let gloss(s) be the set of content words in its part-of-speech tagged gloss. Then for each content word w  in gloss(s)...

Ngày tải lên: 22/02/2014, 02:20

... 2009. c 2009 Association for Computational Linguistics Analysing Wikipedia and Gold-Standard Corpora for NER Training Joel Nothman and Tara Murphy and James R. Curran School of Information Technologies University ... CoNLL entities; 21 for numeri- cal and time data; and 30 for other classes. For our evaluation, BBN’s tags were reduced to the equivalent CoNLL tags, with ex...

Ngày tải lên: 22/02/2014, 02:20

... alternations and their se- mantic effects (Resnik, 1996; Tenny, 1994), and for selecting tense and lexical items for natural language generation ((Dorr and Olsen. 1996: Klavans and Chodorow, ... alter- nations and their semantic effects (Resnik, 1996; Tenny, 1994), and selecting tense and lexical items for natural language gen- eration ((Dorr and Olsen, 1996; Kl...

Ngày tải lên: 22/02/2014, 03:20

... with a strand of siRNA, and the other siRNA strand was subsequently annealed to the aptamer-conjugated strand. These aptamer–siRNA conjugates were able to access HIV- infected cells and silence ... 4827 MINIREVIEW Efficient and targeted delivery of siRNA in vivo Min Suk Shim 1 and Young Jik Kwon 1,2,3 1 Department of Chemical Engineering and Materials Science, University of Californi...

Ngày tải lên: 06/03/2014, 01:23

... scenario, there is no development data for chang- ing settings and parameters. Thus, we determined a train/test split beforehand and ran the methods exactly as we had for CCGbank. The results, given ... (Hockenmaier and Steedman, 2007). We use the standard splits of the data used in semi-supervised tagging experiments (e.g. Banko and Moore (2004)): sections 0-18 for train- ing...

Ngày tải lên: 07/03/2014, 22:20