Báo cáo khoa học: "Semantic Role Labeling: Past, Present and Future" ppt

Ngày tải lên: 23/03/2014, 17:20

... (nouns, adjectives and verbs), we only con- centrated on the verb predicates and their roles. The results show that: (1) ILC can be derived with high accuracy for both FN and Probank and (2) ILC can ... Agent, Recipient, Theme and Topic theta roles. Second, we build a frequency distribution of VN thematic roles on different syntactic positions. Based on our observation and previou...

Ngày tải lên: 08/03/2014, 02:21

... IS-9978025 and ITR/HCI 0086132 mantic labels (Gildea and Jurafsky, 2000; Gildea and Jurafsky, 2002; Gildea and Palmer, 2002; Sur- deanu et al., 2003; Hacioglu and Ward, 2003; Chen and Rambow, ... on all tasks using hand-corrected parses and automatic parses on PropBank data. Table 2 shows the performance of the system us- ing the hand corrected, TreeBank parses (HAND) and usin...

Ngày tải lên: 08/03/2014, 04:22

... the MUC-6 and MUC-7 data sets (Chinchor & Sund- heim, 2003; Chinchor, 2001), using the standard partitioning of 30 texts for training and 20-30 texts for testing. Then, we developed and tested ... the specific lexical expres- sions used, and therefore represents a higher level of abstraction than predicate argument statistics (Kehler et al., 2004) and Latent Semantic Analy- sis u...

Ngày tải lên: 08/03/2014, 21:20

... German and Chinese (Erk and Pado, 2006; Sun and Jurafsky, 2004). The systems for the other languages follow the successful models devised for English, e.g. (Gildea and Jurafsky, 2002; Gildea and Palmer, ... 3 presents the approach and system adopted for this work; Sec- tion 4 presents the experimental setup, results and discussion. Finally, Section 5 draws our conclu- sions. 2 A...

Ngày tải lên: 31/03/2014, 00:20

... frames (expressed in functional roles, e.g. subject), and given a sentence with verbs, (auxiliary, modal, finite, non-finite, ), and chunks, ( , ), label all pairs ( ) with a grammatical role 2 . In this paper, ... classifiers with only local decisions are: a constituent is assigned to a grammatical role more than once and a grammat- ical role (e.g. of a verb) is instantiated more th...

Ngày tải lên: 17/03/2014, 22:20

... 129–140 ª 2004 FEBS The role of helix 8 and of the cytosolic C-termini in the internalization and signal transduction of B 1 and B 2 bradykinin receptors Alexander Faussner 1 , Alexandra Bauer 1 , Irina ... yellow, and unpolar residues are colored in grey. The black lines in B 1 KB 2 and B 1 KB 2 ⁄ SfiV show the transition between B 1 wt and B 2 wt in the chimera. A. Faussner et...

Ngày tải lên: 07/03/2014, 16:20

... the pK a of E399 and E187 by 0.7 and 1.6 units, respectively, and displaced the pH optimum to 7.0. From the observed DpK a it was calcu- lated that R97 and Y331 contribute 3.4 and 4.0 kJÆmol )1 , respectively, ... R97K and R97M Sfbgly50 mutants presented curves narrower and pH optimum (6.5) slightly higher than wild-type Sfbgly50 (6.2) (Fig. 5A,B). The mutant Y331F presented an...

Ngày tải lên: 23/03/2014, 15:21

... made is to choose the role that corresponds to the focus. 586 No. Feature Values Explanation 1 role- present {y, n} is role present? 2 role- f-pos {DT, NNP, } First POS tag of role 3 role- f-word {This, ... predicate 18 them -role- A0 {preparer, assigner, } thematic role for A0 19 them -role- A1 {effort, container, } thematic role for A1 20 them -role- A2 {audience, loaner, ....

Ngày tải lên: 30/03/2014, 21:20

... both arguments are present in the same sentence – are not present, making the role of coreference and cross-sentence inference more critical. The role of coreference and inference as limiting ... Conference, aims to address and evaluate these capabilities, and bridge the IE and QA communi- ties to promote research in discovering facts about entities and expanding a k...

Ngày tải lên: 20/02/2014, 04:20