Báo cáo khoa học: "A Scalable Probabilistic Classifier for Language Modeling" pdf

... Association for Computational Linguistics:shortpapers, pages 625–630, Portland, Oregon, June 19-24, 2011. c 2011 Association for Computational Linguistics A Scalable Probabilistic Classifier for Language ... Lang Institute for Language, Cognition and Computation School of Informatics, University of Edinburgh 10 Crichton Street, Edinburgh EH8 9AB, UK J.Lang-3@sms.ed.ac.uk Abst...

Ngày tải lên: 07/03/2014, 22:20

... comparable with other existing classifiers of this type for sev- eral reasons. Our approach would perform differ- ently for English, which has a lower number of definite NPs. Secondly, our classifier has been evaluated ... presented have a precedent in earlier classifiers of this kind for English while others are our own contribution. In any case, they have been adapted and tested for S...

Ngày tải lên: 08/03/2014, 21:20

... adopting it for word segmentation. For example, since word seg- mentation is merely a preprocessing task for a wide variety of further tasks such as parsing, information extraction, and information ... there is therefore no agreement on how to "correctly" seg- ment a text in an unsegmented language. It is 1Most published segmentation work has been done for Chinese....

Ngày tải lên: 17/03/2014, 23:20

... Hindle’s (1990) and Lin’s (1998) mutual information-based metrics. We write f for fre- quency, I for mutual information, and R(w) for the set of arguments r p for which w occurs as a headword. In ... influence on results. For Jaccard similar- ity, the model had an error rate of 0.1858 for uniform weights, 0.1874 for frequency weight- ing, and 0.1806 for discriminativity. For...

Ngày tải lên: 23/03/2014, 18:20

... with, among other things, various parsing formalisms (e.g. semantic grammars, transformational grammars and auglmented transition networks); the need for knowledge representation (e.g. using ... concentrate on the response generation issues, the input/output for the system is in an internal form - an actual parser and surface language generation capa- bilities will be incorporated...

Ngày tải lên: 31/03/2014, 17:20

... ϕ  iff for every solved form S of ϕ, there is a solved form S  of ϕ  such that S is an extension of S  . Proof (sketch). “⇐” follows from Props. 1 and 2. “⇒”: We construct a solved form for ϕ  by choosing ... lay the formal foundations for a formalism that is emerging as a standard in robust semantic pro- cessing. Although we have not directly provided new tools for modelling or...

Ngày tải lên: 31/03/2014, 20:20

... In recent years, many efforts have been made to utilize linguistic structure in language modeling, which for practical reasons is still dominated by trigram-based language models. There are ... annotation is required, thereby opening up the possibility for building a language model that performs well on a wide variety of data and languages. The proposed model is evaluated us...

Ngày tải lên: 17/03/2014, 06:20

... There- fore, these results clearly indicate that the electron transport system for CYP175A1 is composed of Fdx, FNR, and NADPH (Fig. 4B). All quantitative analyses were performed at 65 °C for 2 ... via OFOR and Fdx to CYP119 [13,14]. Inter- estingly, the electron transport system for CYP175A1 did not utilize OFOR, although the T. thermophilus HB27 genome contains the genes encoding OFOR...

Ngày tải lên: 18/02/2014, 08:20

... the memory for a given number of source language characters. This 1. Harper, K.E., "The Mechanical Transla- tion of Russian: Preliminary Report", Modern Language Forum, vol.38, ... code-word existed for each lower-case character, capital, etc. Unfortu- nately, the speed of modern digital computers and the size of their memories are such that a code of this form wou...

Ngày tải lên: 19/02/2014, 19:20

... overall performance is investigated. 3.1 Rank preference model SVMs have been extensively used for learning clas- sification, regression and ranking functions. In its basic form, a binary SVM classifier ... of the Association for Computational Linguistics, pages 180–189, Portland, Oregon, June 19-24, 2011. c 2011 Association for Computational Linguistics A New Dataset and Method for...

Ngày tải lên: 20/02/2014, 04:20