Báo cáo khoa học: "Exploring Correlation of Dependency Relation Paths for Answer Extraction" doc

... we explore correlation of dependency relation paths to rank candi- date answers in answer extraction. Using the correlation measure, we compare de- pendency relations of a candidate answer and ... incorporate the correlations and rank candidate answers. 3 Dependency Relation Path Correlation In this section, we discuss how the method per- forms in detail. 3.1 Dependen...

Ngày tải lên: 08/03/2014, 02:21

... biochemical basis of the gastrin–transferrin inter- action is still unknown. Knowledge of the regions of transferrin required for the binding of gastrin, and of the regions in gastrin required for the ... be present for formation of the complex between ApoTf and Ggly or Gamide. The effect of ferric ions on the stability of the gas- trin–ApoTf complex was then investigate...

Ngày tải lên: 07/03/2014, 02:20

... com- pounds of interest in the prevention of colon cancer. In the present study, we investigated the relationship of different structural factors of procyanidins, such as the mean degree of polymerization ... However, the development of effec- tive and safe agents for the prevention and treatment of cancer remains inefficient and costly, and falls short of the requirements f...

Ngày tải lên: 07/03/2014, 05:20

... letter of a word. Therefore, l i represents one of the 26 letters. As pre- viously mentioned, for keyboard input, h i are dis- crete features whose values are also one of the 26 letters. Therefore, ... LER performance of synchronous HVR in different noise conditions The performance of synchronous HVR is shown in Table 4. Compared to the results shown in Ta- ble 3, the WER performa...

Ngày tải lên: 07/03/2014, 18:20

... dl {1, ,k} i of k local histograms are computed for each doc- ument i. Each histogram dl j i carries information about the distribution of terms at a certain position µ j of the document, where ... combination of sev- eral local histograms calculated at different locations of the document, hence, it seems that the raw sum of local histograms results in a loss of useful infor...

Ngày tải lên: 07/03/2014, 22:20

... corpus is partitioned into a train- ing set of 347 documents and a test set of 38 doc- uments. This test set consists of 991 sentences with 2,346 segments. For training purposes, we created a held-out ... RST-DT do not correspond to a well-formed subtree in the hu- man annotated discourse parse for that document. Therefore, to perform accurate and efficient pars- ing of the RST-D...

Ngày tải lên: 08/03/2014, 02:21

... so for which semantic information is least necessary. While we do not reliably have access to the meaning of an adjective, we do always have ac- cess to its form. And, fortunately, for many of the ... while either of the methods gives the right answer for about 89% of the test data, one of the two is right 95.00% of the time. This in- dicates that a method which combined t...

Ngày tải lên: 08/03/2014, 05:20

... articles often refer to a same notion with a large set of different words linked by semantic or pragmatic relations. Thus, there is often no reiteration of terms representative of the text ... thematic dimension of the texts, they have to be represented by their significant features from that point of view. So, we only hold for each text the lemmatized form of its nouns,...

Ngày tải lên: 08/03/2014, 05:21

... values for some subset of the pho- netic features. Thus if we think of the transducer as a set of rewrite rules, we can now express the context of each rule as a regular expression of natural ... problem of parsing the output of phonological rules in order to obtain the underlying, lex- ical forms (Karttunen 1993). In this paper we explore an- other consequence of FST...

Ngày tải lên: 08/03/2014, 07:20

... coding for the mature Adrp (preceded by a methionine codon) by sequences coding for the mature form of cytochrome CYP11A1 (preceded by a methionine codon). pV13SCC expresses the mature form of CYP11A1 ... large array of steroids using a limited set of cytochrome P450 enzymes [2]. The biosynthesis of all hormonal steroids begins with the side chain cleavage (SCC) of cholesterol...

Ngày tải lên: 08/03/2014, 08:20