Báo cáo khoa học: "Is the Generally Accepted Strategy of Machine-Translation Research Optimal?" ppt

... derivations, the probability of a tree is the sum of the probabilities of the derivations producing that tree. The probability of a derivation is the product of the subtree probabilities. The original ... consists of the computation of the shortest derivations and the extraction of subtrees, UML- DOP involves iterative training of the parameters....

Ngày tải lên: 20/02/2014, 12:20

... 32] + ). Although the information con- tent of the PMF based on the number of detected pep- tides was high with respect to the size of the protein (five detected peptides out of seven theoretical pep- tides), ... strands, and the black line indi- cates coiled, unstructured regions. The bars at the location of the corresponding amino acids indicate the confidence o...

Ngày tải lên: 07/03/2014, 12:20

... observation regarding the substrate specificity of the Ccm system. Neither single-cysteine holocytochrome c 550 was detected with the coexpression of the System II plas- mid, as shown in the spectra of the periplasmic extracts ... to reduce the cysteine thiols in the cytochrome heme-binding motif (neither ResA of System II nor CcmG of System I are present), the effe...

Ngày tải lên: 06/03/2014, 09:22

... f ij > 0 then we interpret that the node j activates the node i by increasing the net rate of x i and if f ij < 0 then the node j inhibits the node i. We note that the dynamics of the system ... results. On the other hand, for identification of the sign of f 11 , we need to consider another time interval in which we can identify the remaining impossible sign c...

Ngày tải lên: 07/03/2014, 21:20

... contexts are added to the seed corpus. The words in the contexts of the seed words retrieved are then disambiguated. The disambiguated contexts are then used for querying the Web for yet more examples, ... scores of — the first 16 nouns in Table 2 for — the overall potential precision of is significantly increased to 63.8% and the overall precision of is increased to 6...

Ngày tải lên: 08/03/2014, 04:22

... the error commited by the tagger is other than the er- ror in the test corpus, but wrongly evaluated as right (false positive) if the error is the same. Table 1 shows the computation of the ... state than one of the taggers performs better than the other when the two intervals overlap, since this implies a chance that the real performances of both taggers...

Ngày tải lên: 08/03/2014, 05:21

... reduc- tion therapy [11]. The premise behind this strategy is that intralysosomal glucosylceramide accumulation will occur in individuals where the amount of substrate exceeds the capacity of the endogenous ... approach. The promise of the pharmacologic chaperone strategy for GD Pharmacologic chaperones penetrate the plasma mem- brane and the ER, and by binding to t...

Ngày tải lên: 18/02/2014, 16:20

... However, while protons from the solvent are incorporated in the course of the pathway, the metabolites can be detected and identified. Therefore a detailed determination of the metabolic process is ... [1]. In addition to these natural compounds, several synthetic chemicals contain triple bonds. The amount of these products released to the natural environment in the form...

Ngày tải lên: 08/03/2014, 08:20

... The inhibition of catalytic activity was counteracted by methylamines. With the aim of comprehending the effects of urea on the catalytic (globu- lar) portion of myosin, this study examines the ... obtained in the absence of betaine (P > 0.05, Student’s t-test). The center of mass of the intrinsic fluorescence spectrum is not affected by urea up to 4 m, being s...

Ngày tải lên: 16/03/2014, 06:20

... reduced the degree of [ 3 H]daunomycin binding to ABCG2 R482G , thus warranting further examination of the effect of these nucleotide analogues. Figure 3 shows the effects of a range of ATP-c-S ... potency. Figure 1B dem- onstrates the ability of the nucleotides to reduce the fraction of [ 3 H]daunomycin bound to ABCG2 R482G .In the presence of AMP, the binding...

Ngày tải lên: 18/02/2014, 18:20