Báo cáo khoa học: "Annealing Techniques for Unsupervised Statistical Language Learning" ppt

... Annealing Techniques for Unsupervised Statistical Language Learning Noah A. Smith and Jason Eisner Department of Computer Science / Center for Language and Speech Processing Johns ... θ β j . For a given x, the forward pass of the DP computes (in a dense representation) Pr(y | x,  θ) for all y. Each Pr(y | x,  θ) is a product of some of the θ j (each θ j is multiplied in o...

Ngày tải lên: 23/03/2014, 19:20

... A Framework for Unsupervised Natural Language Morphology Induction Christian Monson Language Technologies Institute Carnegie Mellon University 5000 Forbes Ave. Pittsburgh, PA, ... morphological analysis of the language( s) at hand. The task of a morphological analyzer is to identify the lexeme, citation form, or inflection class of surface word forms in a language. Striv- ing...

Ngày tải lên: 17/03/2014, 06:20

... finding all for a given is . Therefore, the total cost is . For all non-empty , we create a new state and for all we set . We create a transition , and for all such that , we set . For all such ... combination with other in- formation sources to rank alternative hypotheses by as- signing them some probabilities. There are classical techniques for constructing language models su...

Ngày tải lên: 08/03/2014, 04:22

... en- try for “pushes” furthermore uses subj and obj for the subject and object argument, respectively. We combine here for simplicity the entries for “the” and “button” into “the button”. For generation, ... Association for Computational Linguistics, pages 1573–1582, Uppsala, Sweden, 11-16 July 2010. c 2010 Association for Computational Linguistics Automated planning for situa...

Ngày tải lên: 17/03/2014, 00:20

... expres- sive formalism for multimodal integra- tion and understanding. However, hand- crafted multimodal grammars can be brit- tle with respect to unexpected, erroneous, or disfluent inputs. Spoken language (speech-only) ... grammar or misrecognized language (such as ‘ASR:’ above) to the closest language the system can understand (‘Grammar:’ above). To this end, we adopt tech- niques f...

Ngày tải lên: 31/03/2014, 20:20

... Association for Computational Linguistics Ensemble Methods for Unsupervised WSD Samuel Brody School of Informatics University of Edinburgh s.brody@sms.ed.ac.uk Roberto Navigli Dipartimento di Informatica Universit ` a ... about 27 person-years of human annotation effort. This paper focuses on unsupervised methods which we argue are useful for broad coverage sense disambiguation. Un...

Ngày tải lên: 08/03/2014, 02:21

... AFNLP Minimized Models for Unsupervised Part-of-Speech Tagging Sujith Ravi and Kevin Knight University of Southern California Information Sciences Institute Marina del Rey, California 90292 {sravi,knight}@isi.edu Abstract We ... been shown to work for natural language applications. These approaches employ heuristic search methods with MDL for the task of unsupervised learning of m...

Ngày tải lên: 17/03/2014, 01:20

... Meeting of the Association for Computational Linguistics, pages 430–439, Portland, Oregon, June 19-24, 2011. c 2011 Association for Computational Linguistics An Algorithm for Unsupervised Transliteration ... Helmut Schmid Institute for Natural Language Processing University of Stuttgart {sajjad,fraser,schmid}@ims.uni-stuttgart.de Abstract We propose a language- independent metho...

Ngày tải lên: 23/03/2014, 16:20

... 2008. c 2008 Association for Computational Linguistics Four Techniques for Online Handling of Out-of-Vocabulary Words in Arabic-English Statistical Machine Translation Nizar Habash Center for Computational ... University habash@ccls.columbia.edu Abstract We present four techniques for online han- dling of Out-of-Vocabulary words in Phrase- based Statistical Machine Translatio...

Ngày tải lên: 31/03/2014, 00:20

... the most useful notion of domain for better translations. We take a finer-grained, flexible, unsupervised ap- proach for lexical weighting by domain. We induce unsupervised domains from large corpora, ... unseen for a given domain s, we are already performing an implicit form of smoothing (when computing the expected counts), since each docu- ment has a distribution over all topics, a...

Ngày tải lên: 19/02/2014, 19:20