Báo cáo khoa học: "Unsupervised Lexicon-Based Resolution of Unknown Words for Full Morphological Analysis" doc

... Proceedings of ACL-08: HLT, pages 728–736, Columbus, Ohio, USA, June 2008. c 2008 Association for Computational Linguistics Unsupervised Lexicon-Based Resolution of Unknown Words for Full Morphological ... dis- ambiguation of unknown words over a com- petitive baseline (to a level of 70% accurate full disambiguation of unknown words) . We have also verified...

Ngày tải lên: 31/03/2014, 00:20

... Linguistics Improving the Use of Pseudo -Words for Evaluating Selectional Preferences Nathanael Chambers and Dan Jurafsky Department of Computer Science Stanford University {natec,jurafsky}@stanford.edu Abstract This ... model ranks a set of possible arguments for a verb by their se- mantic fit to the verb. Pseudo -words serve as a proxy evaluation for these decisions. The evalua...

Ngày tải lên: 07/03/2014, 22:20

... facilitate the development of better user interfaces and im- prove the performance of summarization and in- formation retrieval systems. Discourse segmentation of the documents com- posed of parallel parts ... to the problem of segmenting parallel parts of documents. The task of aligning each sentence of an abstract to one or more sentences of the body has been studied in th...

Ngày tải lên: 20/02/2014, 04:20

... consider a number of such experiments, and the different patterns of results which emerge once contextual information is provided. Although the importance of contextual information will be ... with the provision of contexts which are felicitous with one or other of the two versions of their examples. The following contexts were devised for an experiment (Altmann, forthc...

Ngày tải lên: 22/02/2014, 09:20

... model of several kinds of discourse variables, it can be used to make predictions about either kind of coreference, though we focus experi- mentally on within-document measures. To the best of our ... coreference performance. 2 Experimental Setup We adopt the terminology of the Automatic Context Extraction (ACE) task (NIST, 2004). For this paper, we assume that each document in a...

Ngày tải lên: 08/03/2014, 02:21

... [26] for the numeration used in this article). This C-terminal fragment forms a globular domain both as part of the full- length sequence and in the isolated form, and there- fore constructs of ... 2009 FEBS Table 1. List of plasmids encoding the sequence of the mature cellular form of the prion protein from a variety of species and truncated variants thereof, and of human do...

Ngày tải lên: 18/02/2014, 08:20

... fraction of full- length ApoC1 was determined from the peak intensity of full- length pro- tein divided by the sum of intensities for full- length and truncated ApoC1. The rate constant for disappearance ... ratios of truncated to full- length ApoC1 were constant across the ultracentrifuge fractions for both the S45 and T45 variants (open symbols, Fig. 3E) as were the ratios...

Ngày tải lên: 19/02/2014, 05:20

... techniques. For tasks of this kind, DiMLex can supply the set of cue words to be looked for and support the initial disambiguation of cues in the text. Depending on the depth of the syntactic ... grammar rather than to the lexicon. But for a single discourse relation there is often a set of similar markers, allowing for a range of para- phrases for expressing the...

Ngày tải lên: 20/02/2014, 18:20

... hairpin (HN of Leu38 and CO of Gly93) and the H-bond between HN of Gly93 and CO of Asp90 (loop Fig. 7. View of the active channel of human reduced native SOD. Ori- entation of the s ide chain of Arg143 ... 000 steps for the dimeric form. The dimeric nature of the protein was taken into account by co nnecting the amino a cid sequence of the two subunits with a chain of...

Ngày tải lên: 21/02/2014, 03:20

... Biochemistry, University of Alberta) for performing all CD experiments. Albin Otter (Department of Chemistry) and Ryan T. McKay (NANUC, University of Alberta) are gratefully acknowledged for assistance ... purple. Fig. 4. Superimposition of preCbnB2 structures. (A) Superimposition of the backbone of the leader peptide a-helix for 20 structures. (B) Superimposition of the b...

Ngày tải lên: 07/03/2014, 15:20