Báo cáo khoa học: "In-domain Relation Discovery with Meta-constraints via Posterior Regularization" ppt

... also closely investigate some relation clusters, shown in Table 2. Both the first and second relation contain path “A play B” but with different senses. For the second relation, most paths state ... distribution over relations. In our experiments, we test different numbers of relation topics. As the number goes up, precision in- creases whereas recall drops. We report results with 3...

Ngày tải lên: 23/03/2014, 14:20

... various relations from corpora have been developed, such as the “is-a” relation (Hearst 1992), “part-of” relation (Berland and Charniak 1999), causal relation (Girju 2003), and entailment relation ... kinds of relations exist: the taxonomical relation and the thematic relation. The former is a relation representing the physical resemblance among ob- jects, which is typicall...

Ngày tải lên: 17/03/2014, 04:20

... allosteric DNAzyme with dual RNA-cleaving and DNA-cleaving activities is very challenging. We used an in vitro-selected pistol-like (PL) DNAzyme as a DNA scaffold for designing a DNAzyme with dual catalytic ... As compared with PL DNAzyme, DRc DNA- zyme function seemed to have decreased sensitivity to the reaction temperature. DRc DNAzyme exhibited a broad functional range for temperatu...

Ngày tải lên: 16/02/2014, 15:20

... cisplatin DNA treatment correlated with the occurrence of sequence motifs forming stable bifunc- tional adducts with the drug (namely, GG and AG doublets) within the target sites. Binding of ... protein with cer- tain response elements can be controlled by changes in DNA topology inducing formation of non-B DNA structures within the binding sites [11,12]. Interactions of p53 with DNA...

Ngày tải lên: 19/02/2014, 05:20

... Biochem. 271, 1250–1257 (2004) Ó FEBS 2004 doi:10.1111/j.1432-1033.2004.04025.x relation with xenobiotic metabolism or with metabolism of endogenous compounds [24,25]. Models for CYP51 were also ... the RDDT R strain were measured with all recombinant pro- teins, namely testosterone hydroxylation and DDT meta- bolism. Testosterone was hydroxylated at the 2b position with little quan...

Ngày tải lên: 19/02/2014, 12:20

... of translation edit rate with targeted human annotation. In AMTA. Valentin I. Spitkovsky, Hiyan Alshawi, and Daniel Juraf- sky. 2011. Lateen em: Unsupervised training with multiple objectives, ... different metrics M k (h) for evaluating the quality of h. Without loss of gen- erality, we assume metric scores are bounded be- tween 0 and 1, with 1 being perfect. Each hypoth- esis h can be...

Ngày tải lên: 19/02/2014, 19:20

... 4-ddma-atc and rescreened for induction with 0.4 lm atc and without inducer on MacConkey agar plates. We screened 17 600 colonies with mutations in helix a1, 29 840 with mutations in helix a4 and 3900 ... repres- sion. TetR i2 -E15A L17V shows repression to 12.5% with 4-ddma-atc and to 58% with atc, thus showing only fivefold improved repression with 4-ddma-atc over atc. A similar...

Ngày tải lên: 20/02/2014, 01:20

... confidence-weighted classifiers with transition-based dependency pars- ing yields results comparable with the state-of-the- art results achieved with Support Vector Machines - with faster training and ... MIRA (Crammer et al., 2006). With both these classi- fiers we use the same top-1 approach as with the CW-classifers and also averaging which has been shown to alleviate overfitting (...

Ngày tải lên: 20/02/2014, 04:20

... authors also justified their method by showing that with feature hashing, dot- product is unbiased, and the length of each vector is well-preserved with high probability under some conditions. Plausibly ... explain in detail. In NLP, features can be often expediently expressed with strings. For in- stance, a feature ‘the current word ends with -ing’ can be expressed as a string cur:end...

Ngày tải lên: 20/02/2014, 05:20

... the Figure 2: Opinion HITS model correlations between sentence and opinion words. Each edge e ij is associated with a weight ow ij de- noting the strength of the relationship between the sentence ... answer reinforcement relation and topic relation to calcu- late the scores of each node. For lower value of µ, we give more importance to the relevance to the question than the similarity...

Ngày tải lên: 20/02/2014, 07:20