unsupervised recognition of literal

Ngày tải lên: 17/03/2014, 22:20

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Ngày tải lên: 13/12/2013, 12:20

... sub- unit of PP2A as modeled by comparison with the U2A¢–U2B¢¢ complex. The other two subunits shield most of the surface of PP2A–C. (B) Structure of the U2A¢–U2B¢¢ complex [20]. Study of the interactions ... the structure of this region is flexible and is likely to be involved in the regulation of phosphorylation-dependent functions of Anp32a [1,3]. Probing the dynamics in solution of the Anp32a LRR ... species of this size in solution [29]. The flat profile of the relaxation parame- ters along the sequence indicates that, with the excep- tion of the first two N-terminal amino acids and of the C-terminal...

Ngày tải lên: 18/02/2014, 17:20

... sequence of Colloc(ations), each of which consists of a sequence of Words. sible for an adaptor grammar to generate a sentence as a sequence of collocations, each of which con- sists of a sequence of ... expands to each of the 50 dis- tinct phonemes present in the Brent corpus. This grammar defines a Sentence to consist of a sequence of Words, where a Word consists of a sequence of Phonemes. The ... Journal of Child Language, 12:271–296. Karin M¨uller. 2001. Automatic detection of syllable boundaries combining the advantages of treebank and bracketed corpora training. In Proceedings of the...

Ngày tải lên: 20/02/2014, 09:20

... 0.6 0.7 0.8 0.9 1 10 100 1000 10000 100000 1e+06 size(KB) recall precision 434 Proceedings of the COLING/ACL 2006 Main Conference Poster Sessions, pages 428–435, Sydney, July 2006. c 2006...

Ngày tải lên: 20/02/2014, 12:20

... of the same randomized sets of sentences used by Smith and Eisner. Note that training on sets of contiguous sentences from the beginning of the treebank con- sistently improves our results, often ... variation of information (Meilˇa, 2002). The variation of information (VI) be- tween two clusterings C (the gold standard) and C ′ (the found clustering) of a set of data points is a sum of the ... Bayesian Approach to Unsupervised Part -of- Speech Tagging ∗ Sharon Goldwater Department of Linguistics Stanford University sgwater@stanford.edu Thomas L. Griffiths Department of Psychology UC Berkeley tom griffiths@berkeley.edu Abstract Unsupervised...

Ngày tải lên: 20/02/2014, 12:20

... Introduction An automatic speech recognition (ASR) system consists of acoustic models of speech sounds and of a statistical language model (LM). The LM learns the probabilities of word sequences from text ... afford from the top of the list. However, the relevance of a query is dependent on the sequence of past queries (because of the decay factor). Find- ing the optimal order of the queries takes ... Proceedings of the 12th Conference of the European Chapter of the ACL, pages 157–165, Athens, Greece, 30 March – 3 April 2009. c 2009 Association for Computational Linguistics Web augmentation of language...

Ngày tải lên: 22/02/2014, 02:20

... protein) of YYY49 and YYT42 con- tained approximately 1 and 2 ng of hHSF2, and those of YYT50 and YYT17 contained approximately 0.01 and 0.1 ng of hHSF4, as judged by the intensity of each band. ... of heat shock protein (HSP) expres- sion. Many HSPs function as molecular chaperones that aid the folding of damaged proteins, and increased accumulation of HSPs is essential for sur- vival of ... Deletion of the C-terminal half of hHSF4 (hHSF4-n355–VP16 and hHSF4-n217–VP16) did not significantly affect transcriptional activity or HSE specificity, with the exception of a slight decrease of HSE3P–SV40p–LUC...

Ngày tải lên: 07/03/2014, 00:20

... candidates. Of the 740 cloze tests, 714 of the removed events were present in their respective list of guesses. This is encouraging as only 3.5% of the events are unseen (or do not meet cutoff thresholds). When ... thus a tuple of the event and the typed dependency of the protagonist: (event, depen- dency). A narrative chain is a set of narrative events {e 1 , e 2 , , e n }, where n is the size of the chain, ... presorted topics of doc- uments to learn inferences. In addition, we applied state of the art temporal classification to show that sets of events can be partially ordered. Judgements of coherence...

Ngày tải lên: 07/03/2014, 17:20

... a good start). In Proceedings of the ACL. S. Goldwater and T. L. Griffiths. 2007. A fully Bayesian approach to unsupervised part -of- speech tagging. In Proceedings of the ACL. M. Hyder and K. Mahata. ... minimize the size of the model simultane- ously. We define the size of a model as the number of non-zero probabilities in its parameter vector. Let θ 1 , . . . , θ n be the components of θ. We would like ... Optimization of an MDL-Inspired Objective Function for Unsupervised Part -of- Speech Tagging Ashish Vaswani 1 Adam Pauls 2 David Chiang 1 1 Information Sciences Institute University of Southern...

Ngày tải lên: 07/03/2014, 22:20

... English data is an edited ver- sion of the public-domain portion of the corpus used by Sonderegger (2011), and consists of just under 12000 stanzas spanning a range of poets and dates from the 15 th to ... 2011. c 2011 Association for Computational Linguistics Unsupervised Discovery of Rhyme Schemes Sravana Reddy Department of Computer Science The University of Chicago Chicago, IL 60637 sravana@cs.uchicago.edu Kevin ... extremely useful for large-scale statistical analyses of poetic texts. • Historical Linguistics/Study of Dialects Rhymes of a word in poetry of a given time period or dialect region provide clues...

Ngày tải lên: 07/03/2014, 22:20

... im- provement in the efficacy of the SSS algorithm as described in Section 2. It is based on observing that the improvement in the goodness of fit by up to two consecutive splits of any of the current HMM states ... eigen- vector of Σ s and 0 <   1 is typically 0.2. 3. Re-estimate all parameters of this (overgrown) HMM. Gather the Gaussian sufficient statistics for each of the 4N states from the last pass of re-estimation: ... ways of splitting the N original states than SSS does. E.g. going up from N = 6 to N +∆ = 9 HMM states could be achieved by a 4-way split of a single state, a 3-way split of one state and 2-way of...

Ngày tải lên: 08/03/2014, 01:20

... research aim of a paper, or a claimed gap in the literature. Similarly, in the task of automatic routing of customer emails and automatic answering of some of these, the de- tection of threats of legal ... score of 3.08 to system-extracted sentences in Exp. A, compared with a baseline of 1.58 and a ceiling of 3.91 10 ; in Exp. B, the system scored 3.67, with a higher baseline of 2.50 and a ceiling of ... number of seed combinations, M is the size of the golden list, g i is the i t h member of the golden list and r ij is its rank in the retrieved list of combination j while n ij is the number of golden...

Ngày tải lên: 08/03/2014, 02:21

... performance of the state of the art, language specific stemmer above. We can speculate that, because of the statistical nature of the unsupervised stemmer, it tends to fo- cus on the same kind of meaning ... views, conclusions and findings in this paper are those of the authors and do not necessarily reflect the posi- tion of policy of the Government and no of cial en- dorsement should be inferred. References P. ... indicates an improvement of 22-38% in average pre- cision over unstemmed text, and 96% of the performance of the proprietary stem- mer above. 1 Introduction Stemming is the process of normalizing word...

Ngày tải lên: 08/03/2014, 04:22

... can cover wider range of in- stances of re-linkage. The result of the extension is shown in Table 2 (for cases each of which shares a subject) and Table 3 (for cases each of which has distinct ... constituents of one clause bear certain kind of structural relationship to those of the other. Although there are an infinite number of situations, there seems to be only a small number of properties ... structures of the clauses between which that relation holds. We carried out an experiment and obtained the correct recognition ratio of 82% for the 280 sentences. 1 Introduction One of the basic...

Ngày tải lên: 08/03/2014, 05:21

... is thus a measure of the degree of statistical dependence between the words. The log of this ratio is the amount of information that we acquire about the presence of one of the words when ... summary of the corpus of reviews. Domain of Review Number of Reviews Average Phrases per Review Automobiles 75 20.87 Honda Accord 37 18.78 Volkswagen Jetta 38 22.89 Banks 120 18.52 Bank of ... are reviews of the Bank of America. Both are in the collection of 410 reviews from Epinions that are used in the experi- ments in Section 4. Table 2. An example of the processing of a review...

Ngày tải lên: 08/03/2014, 07:20

... with a-peptides (oligomers of a-amino acids) has recently been applied to the syntheses of linear tetrapeptides of somato- statin [20] and of cyclic tetrapeptide and pentapeptide analogues of the RGD sequence ... structures of the b-aminoacidsthatbestfitare shown in Fig. 6. They all correspond to gauche(+) values of the h angle. The methyl group of b 2 -HAla occupies a position close to that of CH 2 b of Pro ... response of these agonists could be explained by the number of receptors to be occupied by these agonists to get activation of the second messenger cascade as reported [40]. Enzymatic degradation of...

Ngày tải lên: 08/03/2014, 08:20

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Ngày tải lên: 16/03/2014, 06:20