Báo cáo khoa học: "Semantic Role Labeling Systems for Arabic using Kernel Methods" pptx
Báo cáo khoa học: "Semantic Role Labeling Systems for Arabic using Kernel Methods" pptx
... 798–806,
Columbus, Ohio, USA, June 2008.
c
2008 Association for Computational Linguistics
Semantic Role Labeling Systems for Arabic using Kernel Methods
Mona Diab
CCLS, Columbia University
New York, ... proposed in previous work for automatic
SRL of English texts is suitable for Arabic SRL
systems, and (b) the impact of tree kernels using
new tree structures on Arab...
Báo cáo khoa học: "Semantic Role Labeling via FrameNet, VerbNet and PropBank" potx
... a noticeable effort has been
devoted to the design of lexical resources that
can provide the training ground for automatic se-
mantic role labelers. Unfortunately, most of the
systems developed ... frame infor-
mation in the Senseval-3 competition (Litkowski,
2004) of FrameNet (Johnson et al., 2003) role la-
beling task. When such information is not used
by the systems, the performan...
Báo cáo khoa học: "Semantic Role Labeling Using Different Syntactic Views∗" pdf
... We use Sections 02-21 for
training, Section 00 for development and Section 23
for testing.
We formulate the semantic labeling problem as
a multi-class classification problem using Support
Vector ... 80303
{spradhan,whw,hacioglu,martin}@cslr.colorado.edu
Daniel Jurafsky
Department of Linguistics,
Stanford University,
Stanford, CA 94305
jurafsky@stanford.edu
Abstract
Semantic role l...
Báo cáo khoa học: "Semantic Role Labeling for Coreference Resolution" pot
... case, we pass a semantic role
label to a RE only in case the two phrases share the
same head. Labels have the form “ARG
1
pred
1
. . .
ARG
n
pred
n
” for n semantic roles filled by a
constituent, ... performance. Table 6 shows the per-
formance variations obtained by leaving out each
feature in turn. Again, it can be seen that remov-
ing both I and J
SEMROLE induces a relatively
high perfo...
Báo cáo khoa học: "Grammatical Role Labeling with Integer Linear Programming" pot
... With grammatical role labeling, for
example, there is no way to explicitly express
global constraints that, say, the verb “to give” must
have 3 arguments of a particular grammatical role.
Among the ... comprising
all subcategorized roles of the verb but not nec-
essarily forming a valid subcategorization frame
of that verb at all. For example, the verb “to be-
lieve” subcategorizes...
Tài liệu Báo cáo khoa học: Cell-free translation systems for protein engineering docx
... translation systems might be used as the
fundamental basis for cell-like systems. We review recent progress in the
field of cell-free translation systems and describe their use as tools for pro-
tein ... and high produc-
tivity, proteins are prepared using in vivo gene expres-
sion systems. However, the problems associated with
using living cells for recombinant protein express...
Tài liệu Báo cáo khoa học: "Empirically Estimating Order Constraints for Content Planning in Generation" pptx
... pattern
discovery is more appropriate for our task because
it allows for matching across patterns with permu-
tations, for representation of wild cards and for
use on smaller data sets.
Similar ... decade
(see (Hudak and McClure, 1999) for a recent sur-
vey). Combinatorial pattern discovery, one tech-
nique developed for this problem, promised to
be a good fit for our task becaus...
Báo cáo khoa học: "Bootstrapping a Stochastic Transducer for Arabic-English Transliteration Extraction" pdf
... the transducer using the forward-
backward algorithm on the current training set.
3. Calculate the forward score for all word pairs
under consideration.
4. If the forward score for a pair of words ... unattractive for two
reasons. Firstly, predicting all possible relationships
between letters in English and Arabic is difficult.
For example, allowances have to be made for un-
usua...
Báo cáo khoa học: "A Re-examination of Query Expansion Using Lexical Resources" pptx
... the performance,
it remains unclear whether using only information
from hand-crafted thesauri would help to improve
the retrieval performance.
Another way to improve retrieval performance
using ... retrieval performance for all the
data sets. For example, in trec7, it improves the per-
formance from 0.186 to 0.216. As far as we know,
none of the previous studies showed such significant...
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