Báo cáo khoa học: "FROM N-GRAMS TO COLLOCATIONS AN EVALUATION OF XTRACT" pot

... Y and YY are good collocations, and N are bad collocations. The dif- ference between YY and Y is that Y collocations are of better quality than YY collocations. YY collocations are often too ... Stage 3, and a U collocation is rejected. The results of the use of Stage 3 on the sample set of collocations are similar to the manual evaluation in terms of numbers: ab...

Ngày tải lên: 08/03/2014, 07:20

... presented to 3 expert annotators who are native English speakers. They were asked to annotate the preposition usage instance as one of the following: extraneous (Error), not extraneous (OK) or too ... than compressing multiple judg- ments down to the majority, it is better to use agree- ment proportions to weight precision and recall to yield fairer and more stable indicators o...

Ngày tải lên: 30/03/2014, 21:20

... relatedness of somatostatin receptors is demonstrated by the fact that the UII receptor is activated by micromolar concentrations of somato- statin derivatives and can be blocked by somatostatin antagonists ... intra- and extracellular loops (Fig. 1). Phylogenetic analysis of the receptor’s primary sequence shows stri- king similarities to the somatostatin receptor family, most notabl...

Ngày tải lên: 19/02/2014, 07:20

Ngày tải lên: 08/03/2014, 07:20

... reader to (K¨ubler and Hinrichs, 2001). The quantitative evaluation of T¨uSBL has been conducted on the treebanks of German and En- glish described in section 3. Each treebank uses a different annotation ... important to note that the two treebanks consist of transliterated spontaneous speech data. The fragmentary and partially ill- formed nature of such spoken data makes them h...

Ngày tải lên: 17/03/2014, 07:20

... score in the upper range of 2 to 3 and all others had scores lower than 2.5. Some of the systems (including B2) fell into the range of 1 to 2 meaning some or hardly any cohesion. The lead ... 2000 in Japan. DUC and TSC both aim to compile standard training and test collections that can be shared among researchers and to provide common and large scale evaluations in singl...

Ngày tải lên: 17/03/2014, 08:20

... applied the noisy-channel framework to predict the possibil- ities of translating a sentence to a shorter word se- quence. (Galley and McKeown, 2007) extended the noisy-channel approach and proposed ... Amazon Me- chanical Turk 2 . Human annotators were asked to gen- erate condensed version for each of the DAs in the ex- tractive summaries. The compression guideline is sim- ilar to...

Ngày tải lên: 23/03/2014, 17:20

... acquisition. The analy- sis is based on a set of LRs implemented and tested on the basis of Spanish and English business- and finance-related cor- pora. We show that, though the use of LRs is ... nominal meanings refer to EVENTs and verbal meanings to OBJECTs. Many LRs produce entries in which the syntactic category of the input form is changed; however, in our model, the...

Ngày tải lên: 23/03/2014, 20:21

... pairing: first, alignment of homologous chromosomes to bring them close to each other for recognition; and second, recognition of the homologous partner of each chromosome so that they can form an intimate ... pombe and the nematode Caenorhabditis elegans, and propose models for homologous recognition. Alignment of homologous chromosomes Pairing of homologous chromosomes occurs...

Ngày tải lên: 29/03/2014, 08:20

... other organisms, such as Caenorhabditis elegans and the mouse, random segregation triggers apoptosis [45,46]. Reduced frequencies of COs and the positions of exchanges can also lead to nondisjunctions. ... Spo11-leaky mutants). The benefit of this control is to reinforce the obligatory outcome of one CO per chromosome pair and thus reroute NCOs into COs. The establishment of the...

Ngày tải lên: 29/03/2014, 08:20