Báo cáo khoa học: "Coherent Citation-Based Summarization of Scientific Papers" potx

... ci- tations to generate surveys of scientific paradigms. In Proceedings of Human Language Technologies: The 2009 Annual Conference of the North American Chap- ter of the Association for Computational ... generation. M. E. J. Newman. 2001. The structure of scientific collaboration networks. Proceedings of the National Academy of Sciences of the United States of America, 98(...

Ngày tải lên: 23/03/2014, 16:20

... disadvantage of extraction- based approaches is the poor linguistic coherence of the extracted summaries. Because of the widespread and well-developed use of sentence extractors in summarization, ... measure, the importance of a node is a combination of its direct importance and of the importance of its children. The parameter α may be adjusted to vary the relative weight of...

Ngày tải lên: 24/03/2014, 03:20

... was independent of glucuronate 1-phosphate formation. In the presence of ATP-Mg, the rate of hydrolysis of 0.5 mm glucuronate 1-phosphate amounted to 0.04 nmolÆmin )1 Æmg )1 protein irrespective of the ... only 20%, despite the presence of ATP- Mg. It is shown below that this is due to loss of the inhibitory effect of ATP-Mg, consequent to the removal of a heat-stable cofact...

Ngày tải lên: 19/02/2014, 07:20

... Distribution-Based Pruning of Backoff Language Models Jianfeng Gao Microsoft Research China No. 49 Zhichun Road Haidian District 100080, China, jfgao@microsoft.com Kai-Fu Lee Microsoft Research China No. ... District 100080, China, kfl@microsoft.com Abstract We propose a distribution-based pruning of n-gram backoff language models. Instead of the conventional approach of pruning n-gra...

Ngày tải lên: 17/03/2014, 07:20

... scheme, verbs of move- ment are often described with PTRANS and PROPEL. ~t is interesting that some of the building blocks Moran in- ferred seem to be subparts of the structures of PTRANS and ... input, Moran first tries to use a on~inatlon of the building blocks to represent the meaning of each new situation iC encoiJ~Cer8 • A sac of building blocks, once inferred, ne...

Ngày tải lên: 17/03/2014, 19:20

... CONCLUSION The first step of synthesis is the decomposition of the input semantic repre- sentation into the set of semantic compo- nents. The possibilities of lexicalization of components are determined ... framework of the question- answering system. Right from the start of synthesis the process of decomposition of the input se- mantics takes place in order to captu...

Ngày tải lên: 18/03/2014, 02:20

... hydrolytic activity. Deletions of eight residues of the c subunit N-terminus caused a decrease in rates of ATP hydrolysis to 30% of that of the abWT assembly. Furthermore, only  6% of ATP hydrolytic activity ... measured in the presence of sodium sulfite, a strong stimulator of ATP hydrolysis [16]. The relative rates of ATP hydrolysis of these reconstituted assemblies in t...

Ngày tải lên: 23/03/2014, 13:20

... first three occurrences of z, the state set of the parser will reflect the possibility that any three of the phrases A,/3, C, D, E might have been seen ,'rod any two of then| might remain ... prediction of phrases. In cases like this, $hieber's al- gorithm enumerates all of the combinations of k elements taken i at a tin|e, where k is the rule length and i is the...

Ngày tải lên: 24/03/2014, 01:21

... pattern of structural variability of different residues in all of these structures is very much the same as the pattern of B-factors of these residues in any single structure. Thus the analysis of an ... centre is of prime importance from the point of view of enzymatic activity. These atomic movements were also verified by means of difference distance matrix plots, which ha...

Ngày tải lên: 31/03/2014, 07:20

... mechanisms involved in terms of the textual function of linguistic means with respect to the different layers of the text re- presentation. In our model the units of the layer of thematic structure ... transition of a discourse state is the effect of the interpretation of alinguistic expression. It is determined by the textual function of linguistic means. Modeling th...

Ngày tải lên: 01/04/2014, 00:20