discriminative featuretied mixture modeling

... et al., 1997), a maximum-likelihood-based approach. 3 Discriminative Mixture Model 3.1 Mixture Model Now we introduce the discriminative mixture model. Suppose we partition the feature space ... maximum- entropy framework. All features within the same mixture component are tied and share the same mixture weights, where the mixture weights are trained discriminatively to max- imize the translation ... NAACL-HLT. 428 mance. In this paper, we propose a hybrid framework, a discriminative mixture model, to bridge the gap be- tween the ML training and the discriminative train- ing for SMT. In Section 2, we briefly...

Ngày tải lên: 17/03/2014, 00:20

... advocated in Rosenfeld et al. (2001), which used Maximum Entropy modeling to allow for the use of shallow syntactic features for language modeling. A second contrast between our work and previ- ous ... paper are a first step in examining the potential utility of syntactic features for discriminative language modeling for speech recognition. We tried two possible sets of features derived from ... alone. 2 In this sense, the scope of this paper is limited to the language modeling problem. As one example, the language modeling features might take into account n-grams, for example through defini- tions...

Ngày tải lên: 20/02/2014, 15:20

... Recognition. D. Ozkan, K. Sagae, and L P. Morency. 2010. La- tent mixture of discriminative experts for multimodal prediction modeling. In International Conference on Computational Linguistics ... Oregon, June 19-24, 2011. c 2011 Association for Computational Linguistics Modeling Wisdom of Crowds Using Latent Mixture of Discriminative Experts Derya Ozkan and Louis-Philippe Morency Institute ... approach is based on the Latent Mixture of Discriminative Experts (LMDE) model originally introduced for multimodal fu- sion (Ozkan et al., 2010). In our Wisdom-LMDE model, a discriminative expert is...

Ngày tải lên: 20/02/2014, 05:20

... Singapore, 2-7 August 2009. c 2009 ACL and AFNLP Discriminative Lexicon Adaptation for Improved Character Accuracy – A New Direction in Chinese Language Modeling Yi-cheng Pan Speech Processing Labratory National ... and Lin-Shan Lee. 1998. Statistics-based segment pat- tern lexicon: A new direction for chinese language modeling. In ICASSP, pages 169–172. 763 4.4 Application: Character-based Spoken Document Indexing ... case (2) men- tioned above. This is primarily motivated by the minimum classification error (MCE) discriminative training approach proposed by Juang et al. (1997), where a sigmoid function was used...

Ngày tải lên: 20/02/2014, 07:20

... extensible language modeling toolkit. In Proceedings of the Interna- tional Conference on Spoken Language Processing. Ben Taskar, Simon Lacoste-Julien, and Dan Klein. 2005. A discriminative matching ... 1453–1463, Uppsala, Sweden, 11-16 July 2010. c 2010 Association for Computational Linguistics Discriminative Modeling of Extraction Sets for Machine Translation John DeNero and Dan Klein Computer Science ... incorrect rules, is strongly discouraged by this loss. 1456 3.2 Features on Extraction Sets The discriminative power of our model is driven by the features on sure word alignment links φ a (i,...

Ngày tải lên: 07/03/2014, 22:20

... these approaches optimize generative models using discriminative criteria. We propose a general, flexible discriminative ap- proach to pronunciation modeling, rather than dis- criminatively optimizing ... Republic of Korea, 8-14 July 2012. c 2012 Association for Computational Linguistics Discriminative Pronunciation Modeling: A Large-Margin, Feature-Rich Approach Hao Tang, Joseph Keshet, and Karen ... Most previous approaches have involved genera- tive modeling of the distribution of pronuncia- tions, usually trained to maximize likelihood. We propose a discriminative, feature-rich ap- proach using...

Ngày tải lên: 16/03/2014, 19:20

Ngày tải lên: 23/03/2014, 19:20

... lý ảnh số - ĐHBK Hà nội 19 Chơng Hai: thu nhận ảnh 2 thu nhận ảnh image representation and modeling Chơng này giới thiệu quá trình thu nhận ảnh cũng nh các thiết bị dùng trong hệ thống xử...

Ngày tải lên: 27/08/2012, 10:19

... Steady-State Analysis with Damping Power Spectral Density Analysis Incremental Construction Sequence Modeling and Loading (Staged Construction) Restart Capabilities From Any Previous Analysis Multiple ... I. N EW P HYSICAL O BJECT B ASED GUI M ODELING F EATURES New Physical Object Based Modeling Environment New Parametric Templates for Frame, Building, Bridge, Shell and Solid Models...

Ngày tải lên: 06/09/2012, 15:55

... faster than the disk mechanism. Finally, modeling the rotational position and detailed data layout improved model accuracy by a further factor of nearly two. Modeling rotational position accurately ... disk mechanism • generate readahead request if no other requests waiting An introduction to disk drive modeling Chris Ruemmler and John Wilkes Hewlett-Packard Laboratories, Palo Alto, CA Much research ... potential to do a better job by using its detailed knowledge of the disk’s rotation position. 4,5 Modeling disk drives With this understanding of the various disk drive performance factors, we are...

Ngày tải lên: 12/09/2012, 14:16

Ngày tải lên: 12/09/2012, 15:04

Ngày tải lên: 23/09/2012, 16:02

... depth-averaged modeling 2 1.2 Depth-averaged model in curvilinear coordinates 3 1.3 Objectives of study 4 1.4 Scope of study 5 1.5 References 6 Chapter 2. LITERATURE REVIEW 7 2.1 Depth-average modeling ... contravariant of shear stress acting on the bottom i jk Γ : Christoffel symbol HYDRAULIC MODELING OF OPEN CHANNEL FLOWS OVER AN ARBITRARY 3-D SURFACE AND ITS APPLICATIONS IN AMENITY ... distribution equations. They 19 30. Zarrati A. R., Tamai N. and Jin Y. C. 2005. Mathematical modeling of meandering channels with generalized depth averaged model. J. Hydr. Engrg., ACSE, Vol....

Ngày tải lên: 06/11/2012, 10:35

... similarities between the multipath channels in the indoor and urban environments, early research in modeling indoor multipath propagation was based on previous research involving urban multipath propagation. ... indoor radio propagation. The article by Andersen, et al [9], discusses current work being done in modeling both outdoor and indoor propagation. Molkdar’s paper [10] addresses the existing literature...

Ngày tải lên: 20/11/2012, 11:32

... greater than ever for more sophisticated channel modeling research. Each chapter of this preliminary report is, in itself, a stand-alone topic in channel modeling theory. Culled from original reports ... excellent case study in applied channel modeling and ties together much of the theory developed in this dissertation. ii CHAPTER 2. FOUNDATIONS OF STOCHASTIC CHANNEL MODELING 28 ˜ H(  k; f,t): This ... theory fit together to form the field of wireless channel modeling. Overall, the report is intended to be a readable introduction to channel modeling theory. It may be used as a springboard into...

Ngày tải lên: 20/11/2012, 11:36

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Ngày tải lên: 28/08/2013, 08:31

Ngày tải lên: 05/09/2013, 09:08