Báo cáo khoa học: "Unsupervised Argument Identification for Semantic Role Labeling" potx

... 28–36, Suntec, Singapore, 2-7 August 2009. c 2009 ACL and AFNLP Unsupervised Argument Identification for Semantic Role Labeling Omri Abend 1 Roi Reichart 2 Ari Rappoport 1 1 Institute of Computer ... their associated arguments. The SRL task is often viewed as consisting of two parts: argument identification (ARGID) and ar- gument classification. The former aims at identi- fying th...

Ngày tải lên: 17/03/2014, 01:20

... au- dio information to achieve robust topic identifi- cation. As for visual information, we can utilize background color distribution of the image. For example, frying and boiling are usually performed on ... and preparation and dishing up are usually performed on a cutting board. This infor- mation can be an aid to topic identification. As for audio information, silence can be utilized...

Ngày tải lên: 31/03/2014, 01:20

... ice for 1 h, and at 42 °C for 2 min, followed by 2 min incuba- tion on ice. After transformation, 800 lL Luria–Bertani medium was added, and the mixture incubated at 37 °C for 1 h. Transformed ... with 40 lL light mineral oil. DNA sequencing was performed by cycle sequencing using 25 cycles of 96 °C for 30 s, 50 °C for 15 s, and 60 °C for 4 min in a PerkinElmer 480 thermal cycler....

Ngày tải lên: 20/02/2014, 01:20

... hydrophobic forces, van der Waals’ forces and hydrogen bonds are the only significant forces acting during protein denaturation and renaturation. Thus SNase provides a simplified model for studying ... ice for 1 h and at 42 °C for 2 min, followed by a further 2 min incubation on ice. After transformation, 800 lLofLB medium were added and incubated was at 37 °C for 1 h. Transformed cells...

Ngày tải lên: 07/03/2014, 21:20

... each predicate. It is difficult to define universal semantic roles for all predicates. That is why PropBank defines a set of semantic roles for each possible sense of each predicate (frame) ... hand-annotated corpus. It transforms sentences into propositions. It adds a semantic layer to the Penn TreeBank (Marcus et al, 1994) and defines a set of semantic roles for each pr...

Ngày tải lên: 07/03/2014, 22:20

... higher prices for wild fish. Therefore cod has become a subject for aquaculture. Cod is in intimate contact with its environment, which is rich in both saprophytic and pathogenic microbes. For temperate ... the National Center for Biotechnology Information databases, using blast programs and searching for short, nearly exact matches [53]. Multiple sequence alignments were performed u...

Ngày tải lên: 23/03/2014, 15:21

... unexpected drop in returns for bad news and an unexpected rise for good news. Indeed, much early work used such market variables or readily quantifiable aspects of news as a proxy for the news itself: ... WordNet semantic content information is interpreted through the use of topological features of the knowledge base. In order to evaluate the relative contribution of WordNet concepts t...

Ngày tải lên: 23/03/2014, 18:20

... will allow for the easy identification of relevant genes in Brassicas. The identification and characteriza- tion of glucosinolate synthesis genes in Chinese cab- bage would pave the way for further ... again sequenced for both ends. Computational sequence assembly of BAC contigs was conducted using phred ⁄ phrap ⁄ consed software [76]. BLAST and data analyses for BrGS gene identific...

Ngày tải lên: 29/03/2014, 23:20

... becomes significant. It’s not surprising, as these features bring much more information for definites than for other NPs. For the classification our definite prob- ability features were more important, ... not require information on the first NP to be in- terpreted successfully. However, we think that a link between two instances of “the Navy” can be very helpful, for example, in the Infor...

Ngày tải lên: 31/03/2014, 03:20

... mentions for which not all the features can be extracted. For example, the LHE and RHE features are missing for the first and last event m entions in a document, respectively. Also, many semantic roles ... PropBank, the predicate argument structures are represented by events expressed as verbs in text and by the semantic roles, or predicate argu- ments , associated with these event...

Ngày tải lên: 07/03/2014, 22:20