Báo cáo khoa học: "Discourse chunking: a tool in dialogue act tagging" potx

... machine learning that uses examples. In general, classification using a case-based reasoner involves comparing new instances (in this case, utterances) against a database of correctly-tagged instances. ... dialogues into chunks, and also shows how discourse chunking can be used to improve performance for a dialogue act tagger that uses a case-based reasoning approach. 1 Dialog...

Ngày tải lên: 31/03/2014, 03:20

... to link the clause containing the presupposition-bearing (p-bearing) element to that source. However, as with pronominal and definite NP anaphora, while attentional constraints on their interpret- ... additional semantic relations and modal operators to be conveyed through anaphoric presuppositions (Van der Sandt, 1992) licensed by information that speaker and hearer are taken to shar...

Ngày tải lên: 20/02/2014, 18:20

... Where are the applications of this research? True, commercial natural language access interfaces for some database systems have been available for several years, and new ones are being advertised ... Instead of assuming that the problem is one of using typed English to access and/or update a file or files in a single database system, let us define a spectrum of potential natur...

Ngày tải lên: 21/02/2014, 20:20

... (SVM) with a linear kernel. Support Vector Machines pro- vide a fast, easily trainable classification frame- work that has proven effective in a wide range of application tasks. For example, in the binary ... matched train- ing data from non-natives of similar skill level or language background. Thus we perform experiments on matched train- ing and test data, training and testing wit...

Ngày tải lên: 23/03/2014, 17:20

... results can often be obtained if the final evalua- tion criterion is taken directly into account as part of the training procedure. 1 Introduction Many tasks in natural language processing have evaluation ... more ’informative’ than for instance the binary feature functions used in stan- dard maximum entropy models in natural language processing. For search, we use a dynamic programmin...

Ngày tải lên: 23/03/2014, 19:20

... sentences as a test corpus. 4.2 Language model and paraphrase table Paraphrase generation tools based on SMT meth- ods need a language model and a paraphrase table. Both are computed on a training ... automatic summary can be seen as a particular paraphrasing task (Barzilay and Lee, 2003) with the aim of se- lecting the shortest paraphrase. Paraphrases can also be used to improve na...

Ngày tải lên: 17/03/2014, 02:20

... from each error were assigned by the pharmacist and the ICU clinical director, according to an adapted scale [9-11]. Minor errors were classified as those causing no harm or an increase in patient ... monitoring with no change in vital signs and no harm noted. Moderate errors were classified as those causing an increase in patient monitoring, a change in vital signs but without asso...

Ngày tải lên: 25/10/2012, 10:39

... H, Okamura K, Bauer PO, Furukawa Y, Shimizu H, Kurosawa M, Machida Y, Miyazaki H, Mitsui K, Kuroiwa Y et al. (2008) RNA-binding protein TLS is a major nuclear aggregate-interacting protein in hunting- tin ... substantia nigra pars compacta and appearance of Lewy bodies consisting of aggregated protein, mainly a- synuclein, in Keywords amyloid; fibrillation; Parkinson’s disease; synuclei...

Ngày tải lên: 14/02/2014, 19:20

... sequencing and mutational analysis of a gene cluster involved in nitrite reduction in Paracoccus denitrificans. Antonie Leeuwenhoek 66, 111–127. 13 Kawasaki S, Arai H, Kodama T & Igarashi Y ... nitrite accumulation and consumption in Paracoccus pantotro- phus strains. Starter cultures were grown aerobically in LB with shaking before inocu- lation of mineral salt medium containing...

Ngày tải lên: 15/02/2014, 01:20

... two-domain, papain-like fold [11]. The N-terminal domain includes the central helix that contains, on its N-terminus, the active site C29. The C-terminal domain is based on a four-stranded b-barrel ... complexes with stefin A and chagasin, although it has no impact on the binding constant. Hence, cathepsin B can dock inhibitors and certain substrates regardless of the size of the binding r...

Ngày tải lên: 18/02/2014, 04:20