Báo cáo khoa học: "Heterogeneous Transfer Learning for Image

Tài liệu Báo cáo khoa học: "Generalized Expectation Criteria for Semi-Supervised Learning of Conditional Random Fields" pdf

... highly effective. In their method, they collect contexts around all words in the corpus, then perform a SVD decomposition. They take the ﬁrst 50 singular values for all words, and then if a word is ... nar- rowly only to the individual subpart, not to all places in the data where the feature occurs. 1 In the experiments in this paper, we use λ = 0.001, which we tuned for best...

Ngày tải lên : 20/02/2014, 09:20

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Báo cáo khoa học: "Hierarchical Reinforcement Learning and Hidden Markov Models for Task-Oriented Natural Language Generation" ppt

... derived from the Forward algorithm, of an observation sequence to inform the agent’s learning process. r =                      0 for reaching the goal state +1 for a desired ... induced 9 For training, the step-size parameter α (one for each SMDP) , which indicates the learning rate, was initiated with 1 and then reduced over time by α = 1 1+t , whe...

Ngày tải lên : 07/03/2014, 22:20

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Tài liệu Báo cáo khoa học: A facile method for expression and puriﬁcation of the Alzheimer’s disease-associated amyloid b-peptide pdf

... concentrated manner at the top of the column, or, if bound to the resin prior to packing the column, the salt gradient concen- trates the peptide on its way out of the column. The molecular mass ... [41]. The use of thrombin significantly increases the cost of the purification, and the require- ment for HPLC increases the length and complexity of the purification pr...

Ngày tải lên : 18/02/2014, 13:20

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Tài liệu Báo cáo khoa học: Pathways and products for the metabolism of vitamin D3 by cytochrome P450scc docx

... purifying them and determining the substrates from which they arose by the action of P450scc, as well as the products that they gave rise to. This revealed both the major and minor pathways for the ... responsible for the content or functionality of any supplementary materials supplied by the authors. Any queries (other than missing material) should be directed to the corr...

Ngày tải lên : 18/02/2014, 17:20

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Tài liệu Báo cáo khoa học: Electron transfer chain reaction of the extracellular ﬂavocytochrome cellobiose dehydrogenase from the basidiomycete Phanerochaete chrysosporium doc

... WT CDH. In this study, therefore, we compared the ther- modynamic and kinetic features of recombinant WT and the slow electron transfer mutant F166Y. The presteady-state electron transfer from ﬂavin ... respectively (Fig. 6A,C) i.e. almost the same value for the two enzymes. The k obs values for the secondary phase, however, were 27.7 ± 2.1 (WT) and 13.3 ± 4.1 (F166Y). T...

Ngày tải lên : 19/02/2014, 18:20

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Tài liệu Báo cáo khoa học: "Translation Model Adaptation for Statistical Machine Translation with Monolingual Topic Information" doc

... solving the translation ambiguity by the exploitation of the context information at the sentence level, we adopt the topical context information in our method for the following reasons: (1) the ... represents the probability that t f in is not the topic of the phrase ˜ f. Similarly, P ( ¯ t f in |f j ) indicates the probability that t f in is not the topic of the...

Ngày tải lên : 19/02/2014, 19:20

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Tài liệu Báo cáo khoa học: "A Statistical Model for Unsupervised and Semi-supervised Transliteration Mining" pptx

... unigram model. 1 The Expectation Maximization (EM) algorithm is used to train the model. It maximizes the likelihood of the training data. In the E-step the EM algorithm computes expected counts for the ... in the M-step the multigram probabilities are reestimated from these counts. These two steps are iterated. For the ﬁrst EM iteration, the multigram probabilitie...

Ngày tải lên : 19/02/2014, 19:20

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Tài liệu Báo cáo khoa học: Proton transfer in the oxidative half-reaction of pentaerythritol tetranitrate reductase Structure of the reduced enzyme-progesterone complex and the roles of residues Tyr186, His181 and His184 pdf

... analysis of the rate constant for its formation by the stopped-ﬂow method; the rate constant for col- lapse of the charge -transfer species was similar to that measured for hydride transfer at ... to the very rapid formation of the charge -transfer intermediate and the small absorption changes it was not possible to evaluate the dissociation constant for the oxid...

Ngày tải lên : 20/02/2014, 02:21

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Tài liệu Báo cáo khoa học: "Conditional Random Fields for Word Hyphenation" docx

... English dataset. The column “Fea- tures/Patterns” in the table reports the number of feature-functions used for the CRF, or the number of patterns used for the T E X algorithm. Overall, the CRF approach ... positives) for the T E X algorithm. 370 Figure 1: Total letter-level error rate and serious letter-level error rate for different values of threshold for the CR...

Ngày tải lên : 20/02/2014, 04:20

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Tài liệu Báo cáo khoa học: "Bilingual Sense Similarity for Statistical Machine Translation" ppt

... of the rule (a particular phrase pair in the training corpus), the context will be the words instantiating the non-terminals. In turn, the context for the sub-phrases that instantiate the ... assured to be the same. Therefore, we need to first map a vector into the space of the other vector, so that the similarity can be calculated. Fung (1998) and Rapp (1999)...

Ngày tải lên : 20/02/2014, 04:20

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Báo cáo khoa học: "Heterogeneous Transfer Learning for Image Clustering via the Social Web" docx

Tài liệu Báo cáo khoa học: "Generalized Expectation Criteria for Semi-Supervised Learning of Conditional Random Fields" pdf

Báo cáo khoa học: "Hierarchical Reinforcement Learning and Hidden Markov Models for Task-Oriented Natural Language Generation" ppt