Báo cáo khoa học: "Generalizing Semantic Role Annotations Across Syntactically Similar Verbs" doc

... 3 A Simple Semantic Role Labeler To explore issues surrounding the generalization of semantic role annotations across verbs, we began by authoring a simple automated semantic role la- beling ... our semantic role label- ing approach on PropBank rolesets 4 Identifying Syntactically Similar Verbs A key part of generalizing semantic role annota- tions is to calcu...

Ngày tải lên: 23/03/2014, 18:20

... generative model for unsupervised semantic role induction, which integrates local role assignment deci- sions and a global role ordering decision in a unified model. The role sequence is divided into ... syntactic and semantic features could provide clues to the semantic role label of a constituent, non- local features such as predicate voice could provide information about the...

Ngày tải lên: 19/02/2014, 19:20

... Automatic Label- ing of Semantic Roles. Computational Linguistics, 28(3):245–288. A. Gordon and R. Swanson. 2007. Generalizing Se- mantic Role Annotations Across Syntactically Similar Verbs. In Proceedings ... un- supervised semantic role labeling. Following com- mon practice, our system proceeds in two stages. It first identifies the semantic arguments of a pred- icate and th...

Ngày tải lên: 30/03/2014, 21:20

... methods in place. But since this task has some similarity to role labelling, we can also compare the model to a standard role labeller on both the prediction and role labelling tasks. The questions are: ... roles incrementally as soon as a predicate- argument pair is seen. It uses the likelihood of the- matic role assignments to model human interpre- tation of verb-argument relations....

Ngày tải lên: 31/03/2014, 20:20

... derivation structures and semantic or predicate- argument dependencies, and Joshi and Vijay- Shanker (Joshi and Vijay-Shanker, 1999) de- scribe a monotonic compositional semantics based on attachment ... If we assume that this attachment structure captures a sentence's semantic dependencies, then in order to preserve semantic dependencies in synchronous TAG translation, we...

Ngày tải lên: 08/03/2014, 06:20

... selectional pref- erences have potential for improving a full system for Semantic Role Labeling. 1 Introduction Semantic Role Labeling (SRL) systems usually approach the problem as a sequence of ... take the av- erage of both similarities. We will refer to this similarity measure as sim th lin . Another option is to use second-order similarity, where we compute the similarity of two w...

Ngày tải lên: 23/03/2014, 17:20

... CHR with a role in cell cycle-depen- dent transcriptional repression (Table 2). Therefore, this site has to be confirmed in each case by functional assays. CDEs follow a loose consensus similar to ... protein RB6K was observed to be expressed similarly to cyclin B with RB6K lagging a little behind cyclin B expression. In the RB6K promoter a tandem element with similarity to known CDE ⁄ CHR...

Ngày tải lên: 16/02/2014, 09:20

... 2012. c 2012 Association for Computational Linguistics Detecting Semantic Equivalence and Information Disparity in Cross-lingual Documents Yashar Mehdad Matteo Negri Marcello Federico Fondazione ... lexical, syntactic, and semantic fea- tures to train a cross-lingual textual entailment system, we report promising results on differ- ent datasets. 1 Introduction Given two documents about t...

Ngày tải lên: 19/02/2014, 19:20

... mitochondria play a key role in the execution of apoptosis, which is separate from the caspase pathway mentioned above. By analogy, it is reasonable to assume that mitochondria play a key role in PND in Tetrahymena. ... Ca 2+ gave similar inhibition results (data not shown). In the pre- sent experiment, which involved mixing mitochondria with plasmid DNA, the low levels of endogenous di...

Ngày tải lên: 20/02/2014, 03:20

... 2007). Evaluation Inconsistency Across Papers. A fact that may not be recognized by some readers is that comparing the results of unsupervised dependency parsers across different papers is not ... grandparent. Thus, NED does not accept all possible annotations of structures of size 3. On the other hand, using a method which accepts all possible annotations of structures of size 3 seem...

Ngày tải lên: 20/02/2014, 04:20