Báo cáo khoa học: "Regression for Sentence-Level MT Evaluation with Pseudo References" pdf

... correlations with human judgments than when higher-ordered n-grams are included. SysID Human-assessment score MT1 0.661 MT2 0.626 MT3 0.586 MT4 0.578 MT5 0.537 MT6 0.530 MT7 0.530 MT8 0.375 MT9 0.332 MT1 0 ... the pseudo references, the quality of MT systems being evaluated, and the diversity over the distribution of training examples). Specifically, we reserved four systems (M...

Ngày tải lên: 31/03/2014, 01:20

... scores for both runs were compared using a standard deviation measure. 3. The results of the MT evaluation with frequency weights With respect to evaluating MT systems, the cor- relation for ... weights are shown to be consistent with baseline BLEU evaluation results for Fluency and outperform the BLEU scores for Adequacy (where the correlation for the S-score we...

Ngày tải lên: 20/02/2014, 16:20

... for evaluation General statistics for the AdjN and PNV base sets are given in Table 1. Manual annotation was performed for AdjN pairs with frequency and PNV triples with only (see section 5 for ... around the best-performing measure for the AdjN data with (log-likelihood). There is no significant difference between log- likelihood and t-test. And only for -best lists with...

Ngày tải lên: 20/02/2014, 18:20

... in- dicating being a name or not. Without these con- straints, t-table entries for names with low frequency tend to be flat and word alignments can be chosen randomly without sufficient statistics or ... translation performance by the BLEU score (Papineni et al., 2002) and Translation Error Rate (TER) (Snover et al., 2006) with one ref- erence for each hypothesis. Word alignment mod- el...

Ngày tải lên: 20/02/2014, 12:20

... probability: ˆ e = argmax e P r(e|f ) (1) Within the IMT framework, a state-of-the-art SMT system is employed in the following way. For a given source sentence, the SMT system automati- cally generates ... in the literature to report IMT results. The corpus consists of approximately 50,000 sentences pairs for training, 1,000 for devel- opment, and 1,000 for test. The evaluation crit...

Ngày tải lên: 07/03/2014, 22:20

... to link an inflected form with its lemma. Such a view seems highly questionable for the ma- jority of regular forms. In order to settle this issue, we trained three language models: one with lemmas (LM1), another ... (LM1), another with inflected forms disambiguated according to their tags (LM2), and a third one with inflected forms (LM3). The ex- periment was not very conclusive, sinc...

Ngày tải lên: 08/03/2014, 21:20

... Mayrose I, Bacharach E & Pupko T (2005) Selecton: a server for detecting evolutionary forces at a single amino-acid site. Bioin- formatics 21, 2101–2103. 39 Da Lage JL, Danchin EG & Casane ... effort to shed more light on the early evolutionary history of the heavy-chain subunits of heteromeric amino acid transporters (hcHATs) rBAT and 4F2hc within the a-amylase family GH13, a bioin...

Ngày tải lên: 18/02/2014, 13:20

... cells were washed with NaCl ⁄ P i and fixed with 2% formaldehyde and 0.2% glutaradehyde at room temper- ature for 15 min. The cells were then washed with NaCl ⁄ P i and permeabilized with 2 mm MgCl 2 , ... phalloidin (Invitrogen) was added for F-actin staining at room temperature for 45 min. Finally, the cells were washed three times with 1· NaCl ⁄ P i before micros- copy was p...

Ngày tải lên: 18/02/2014, 14:20

... fold- ing of MT results in the formation of discrete metal– thiolate clusters within each of the a and b domains with stoichiometries of [M 4 (S cys ) 11 ] and [M 3 (S cys ) 9 ], respectively, for divalent ... the meas- ured spectra. Calculated mass: Cd 4 a-rhMT, 4083.0 Da; Cd 1 a-rhMT, 4193.4 Da; Cd 2 a-rhMT, 4303.8 Da; Cd 3 a-rhMT, 4414.2 Da; Cd 4 a-rhMT, 4524.6 Da. K. E. Rigby Duncan...

Ngày tải lên: 19/02/2014, 00:20

... has electrostatic interactions with Y150 and S163 and forms two H-bonding interactions with D129 [116,132]. Thus, when P1 Arg is replaced with Phe or Trp, the hydrogen bonds with Y150 and S163 are lost, but ... important not only for the correct fold of the protease but also for the correct interaction with the substrate. The binding site of the NS2B cofac- tor could be examined...

Ngày tải lên: 19/02/2014, 00:20