Báo cáo khoa học: "A Dynamic Bayesian Framework to Model Context and Memory in Edit Distance Learning: An Application to Pronunciation Classification" ppt

... important development has been the use of data-driven methods for the automatic learning of edit costs, such as in (Ristad and Yianilos, 1998) in the case of string edit distance and in (Neuhaus and Bunke, ... Memory in Edit Distance Learning: An Application to Pronunciation Classification Karim Filali and Jeff Bilmes ∗ Departments of Computer Science &...

Ngày tải lên: 23/03/2014, 19:20

... 1995); probabilistic models have been used to find classes that can improve smoothing and reduce perplexity (Brown et al., 1992; Saul and Pereira, 1997). Unfor- tunately, due to a lack of standard and informative evaluation ... α and β and evaluated overall tagging accuracy. For com- parison with our Bayesian HMM (BHMM) in this and following sections, we also present result...

Ngày tải lên: 20/02/2014, 12:20

... would like to thank Hung -an Chang and Ekapol Chuangsuwanich for training the English and Thai acoustic models. Thanks to Matthew John- son, Ramesh Sridharan, Finale Doshi, S.R.K. Brana- van, the ... training set and were searched for in the test set using segmental dynamic time warping (Zhang and Glass, 2009). In addition to the supervised acoustic models, we also compar...

Ngày tải lên: 07/03/2014, 18:20

... with a document to be summarized, into this framework, 2) exploring different modeling approaches for this framework, 3) investigating discriminative training criteria for training the component ... mod- els in this framework, and 4) extending and ap- plying the proposed framework to multi- document summarization tasks. References James O. Berger Statistical decision theo...

Ngày tải lên: 16/03/2014, 23:20

... excel- lent performance and the accompanying advan- tages of Bayesian probabilistic models, in propos- ing a novel and efficient inference scheme for the model, and in establishing the direct correspon- dence ... and ease in using as part of more complex models; we plan to look into these possi- ble improvements and extensions. The hierarchical Dirichlet language model o...

Ngày tải lên: 17/03/2014, 04:20

... stored and used in the training model for use during testing. (b) Evaluation of relation. Here we want to evaluate whether relation InputRel belongs to a path between anchors InputA i and ... performance of ASSERT is F 1 =83.8% on the identification and classification task for all arguments, evaluated using PropBank and AQUAINT as the training and testing corpora, r...

Ngày tải lên: 23/03/2014, 18:20

... vari- ous levels of inference, including logical represen- tation (Tatu and Moldovan, 2007; MacCartney and Manning, 2007), semantic analysis (Burchardt et al., 2007) and syntactic parsing (Bar-Haim ... Har- rison, 2010), or applying an Information Retrieval- style vector space similarity score (MacKinlay and Baldwin, 2009). Other works (Corley and Mihal- cea, 2005; Zanzotto and...

Ngày tải lên: 30/03/2014, 21:20

... types of features include contextual (Lin, 1998), co-occurrence (Yang and Callan, 2008), and syntactic dependency (Pantel and Lin, 2002; Pantel and Ravichandran, 2004). So far there is no systematic ... pattern-based approaches include question- answer relations (such as birthdates and inven- tor) (Ravichandran and Hovy, 2002), synonyms and antonyms (Lin et al., 2003), gener...

Ngày tải lên: 30/03/2014, 23:20

... to model three different scenarios: asking and re- sponding to a question, integrating a proposition into the commonly agreed facts, and asking for clarification when the content of an utterance ... has been used to provide an ac- count of the kind of context that licenses elliptical responses in dialogue (Ginzburg, 1999; Fernandez 19 and Ginzburg, 2002; Fernandez et al....

Ngày tải lên: 31/03/2014, 20:20

... Specifically, an integer within the range of 0 to 255 is coded as a 1-byte integer, the integers within the range of 256 to 65,535 are stored as 2-byte integers, and so on. We use an ad- ditional bit vector ... language model structure and introduced a lossless algorithm that compressed a sorted integer vector by recursively s hifting a certain number of bits and by emitting in...

Ngày tải lên: 20/02/2014, 09:20