domain similarity for parsing
Tài liệu Báo cáo khoa học: "Bilingual Sense Similarity for Statistical Machine Translation" ppt
Ngày tải lên :
20/02/2014, 04:20
... analogous similarity me-
tric for
γ
. They range from 0 to 1. These two
metrics both evaluate the similarity for two vec-
tors in the same language, so using cosine dis-
tance to compute the similarity ... performance over the baseline. The
Alg2 cosine similarity function got 0.7 BLEU-
score (p<0.01) improvement over the baseline
for NIST 2006 test set, and a 0.5 BLEU-score
(p<0.05) for ... of the Association for Computational Linguistics, pages 834–843,
Uppsala, Sweden, 11-16 July 2010.
c
2010 Association for Computational Linguistics
Bilingual Sense Similarity for Statistical Machine...
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Tài liệu Báo cáo khoa học: "A Unified Syntactic Model for Parsing Fluent and Disfluent Speech∗" ppt
Ngày tải lên :
20/02/2014, 09:20
... any information about repair is stripped
from the input, including partial words, repair sym-
bols
3
, and interruption point information. While an
integrated system for processing and parsing ... results from Hale
et al. RCT results are on the right-corner transformed
grammar (transformed back to flat treebank-style trees
for scoring purposes). CYK and TAG lines show relevant
results from ... syntactic information to
find repairs, and thus may have access to some of
this information about where interruptions occur,
this experiment is intended to evaluate the use of the
right corner transform...
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Tài liệu Báo cáo khoa học: "Keyword Extraction using Term-Domain Interdependence for Dictation of Radio News" ppt
Ngày tải lên :
20/02/2014, 18:20
... any other domains, domainj
seems to be the domain of unit~. The system se-
lects the domain which is the largest of all sim-
ilarities in N of domains as the domain of the
unit (formula (6)) ... vectors.
5.3 Domain identification experiment
The system selects suitable domain of each
unit for keyword extraction. Table I shows
the results of domain identification. We con-
ducted domain identification ... kinds of
domains, i.e. 141 domains and 9 large domains.
We also compared the results and the result us-
ing previous method (Suzuki et al., 1997). For
comparison, we selected 5 domains which...
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Tài liệu Báo cáo khoa học: "Statistical Decision-Tree Models for Parsing*" ppt
Ngày tải lên :
20/02/2014, 22:20
... Statistical Pattern Recognition. Doctoral
dissertation. Stanford University, Stanford, Cali-
fornia.
283
Statistical Decision-Tree Models for Parsing*
David M. Magerman
Bolt Beranek and Newman ... sentence length for Wall Street Journal
experiments.
5 Conclusion
Regardless of what techniques are used for parsing
disambiguation, one thing is clear: if a particular
piece of information is ... and 7 illustrate the performance of
SPATTER as a function of sentence length. SPAT-
TER's performance degrades slowly for sentences up
to around 28 words, and performs more poorly and
more...
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Tài liệu Báo cáo khoa học: "Text-to-text Semantic Similarity for Automatic Short Answer Grading" pdf
Ngày tải lên :
22/02/2014, 02:20
... corpus-based measures of similarity
perform comparably when used for the task of
short answer grading. However, since the corpus-
based measures can be improved by account-
ing for domain and corpus ... unsupervised
techniques for the task of automatic short
answer grading. We compare a number of
knowledge-based and corpus-based mea-
sures of text similarity, evaluate the effect
of domain and size on ... improve the performance of the
system by integrating automatic feedback
from the student answers. Overall, our
system significantly and consistently out-
performs other unsupervised methods for
short...
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Báo cáo khoa học: "Estimating Class Priors in Domain Adaptation for Word Sense Disambiguation" pdf
Ngày tải lên :
08/03/2014, 02:21
... gathered
from parallel texts and the evaluation data for the
two SENSEVAL tasks. This gave a set of 6 nouns
for SENSEVAL-2 and 9 nouns for SENSEVAL-
3. For each noun, we gathered a maximum of 500
parallel ... we use for our experiments
before presenting our experimental results. Next,
we propose using the well calibrated probabilities
of logistic regression to estimate the sense priors,
and perform ... improves performance. For example,
row 1 of Table 4 shows that adjusting the pre-
dictions of multiclass naive Bayes classifiers by
sense priors estimated by logistic regression (NB-
EM ) performs significantly...
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Báo cáo khoa học: "Biographies, Bollywood, Boom-boxes and Blenders: Domain Adaptation for Sentiment Classification" potx
Ngày tải lên :
08/03/2014, 02:21
... target domain labeled instances. We chose
this number since we believe it to be a reasonable
amount for a single engineer to label with minimal
effort. For reasons of space, for each target domain
dom ... different domains, and annotating
corpora for every possible domain of interest
is impractical. We investigate domain adap-
tation for sentiment classifiers, focusing on
online reviews for different ... domains
of discourse makes it an ideal candidate for domain
adaptation. This work addressed two important
questions of domain adaptation. First, we showed
that for a given source and target domain, ...
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Báo cáo khoa học: "Syntactic Features and Word Similarity for Supervised Metonymy Resolution" pot
Ngày tải lên :
08/03/2014, 04:22
... reduction
Pakistan
Scotland-subj-of-losePakistan-subj-of-win
similarity
semantic class
head similarity
role similarity
Pakistan
had won the World Cup lost in the semi-finalScotland
Figure 1: Context reduction and similarity levels
draw ... 1997;
Stern, 1931)). In a place -for- people pattern,
a place stands for any persons/organisations associ-
ated with it, e.g., for sports teams in (2), (3), and (4),
and for the government in (7).
4
(7) ... a place -for- event pattern, a location
name refers to an event that occurred there (e.g., us-
ing the word Vietnam for the Vietnam war). In a
place -for- product pattern a place stands for
a product...
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Báo cáo Y học: Identification of residues in the PXR ligand binding domain critical for species specific and constitutive activation docx
Ngày tải lên :
08/03/2014, 16:20
... designed:
5¢-TGAGATGTGCCAGCTGAGGTTCA-3¢ for I282Q
(forward), 5¢-CAACGCCCAGCATACCCAGCAGT-3¢
for Q404H (forward), 5¢-CAACGCCCAGGCAACCCAG
CAGT-3¢ for Q404A (forward), 5¢-TGAACCTCAGCT
GGCACATCTA-3¢ for I282Q (reverse), ... were obtained by Transformer Site-directed
mutagenesis Kit (Clontech). The following primers
were used: 5¢-TCGAGCTGTGTATACTGAGATTCA-3¢
for Q285I, 5¢-TCAATGCTCAGCAGACCCAGCGGC-3¢
for H407Q, 5¢-TCAATGCTCAGGCCACCCAGCG
GC-3¢ ... luciferase activity. All experiments were
performed at least three times in duplicates and luciferase
activity was normalized for alkaline phosphatase activity.
For curve fitting and EC50 calculations,
XLFIT
version...
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Báo cáo khoa học: "Aligning Medical Domain Ontologies for Clinical Query Extraction" potx
Ngày tải lên :
08/03/2014, 21:20
... in a
specific domain (medicine) and as we are not
domain experts, we are in lack of domain knowl-
edge. This missing domain knowledge shall be
acquired from external resources, for example
UMLS. ... (c) is it normal or is it ab-
normal? Therefore, when a radiologist looks for
information, his search queries most likely con-
tain terms from various information sources that
provide this kind ... noun)
Using a transformation rule of the form,
82
Ontologies (OBO)
5
framework. The OBO con-
sortium establishes a set of principles to which
the biomedical ontologies shall conform to for
purposes...
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Báo cáo khoa học: "Exploiting Multiple Treebanks for Parsing with Quasi-synchronous Grammars" doc
Ngày tải lên :
16/03/2014, 19:20
... Association for Computational Linguistics
Exploiting Multiple Treebanks for Parsing with Quasi-synchronous
Grammars
Zhenghua Li, Ting Liu
∗
, Wanxiang Che
Research Center for Social Computing and Information ... punctuation. We
adopt Dan Bikel’s randomized parsing evaluation
comparator for significance test (Noreen, 1989).
7
For all models used in current work (POS tagging
and parsing) , we adopt averaged perceptron ... algorithm for pro-
jective dependency parsing. In Proceedings of the
8th International Workshop on Parsing Technologies
(IWPT), pages 149–160.
Eric W. Noreen. 1989. Computer-intensive methods for
testing...
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Báo cáo khoa học: "Domain Adaptation for Machine Translation by Mining Unseen Words" doc
Ngày tải lên :
17/03/2014, 00:20
... gains in performance when moving from
Parliament domain to News domain.
3 Data
Our source domain is European Parliament
proceedings (http://www.statmt.org/
europarl/). We use three target domains: ... methods for mining dic-
tionaries from comparable corpora to the domain
adaptation setting, by “bootstrapping” them based
on known translations from the source domain. (3)
Develop methods for integrating ... establish
baseline performance for the domains. In these ex-
periments, we built a translation model based only
on the Parliament proceedings. We then tune it us-
ing the small amount of target -domain tuning...
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Báo cáo khoa học: "Exploiting Heterogeneous Treebanks for Parsing" pptx
Ngày tải lên :
17/03/2014, 01:20
... that the use of
probability information from the parser for tree
conversion helps target grammar parsing.
4.3 Using Unlabeled Data for Parsing
Recent studies on parsing indicate that the use ... treebanks with same grammar for-
malism for domain adaptation of parsers. Roark
and Bachiani (2003) presented count merging and
model interpolation techniques for domain adap-
tation of parsers. ... Parsing
Through grammar formalism conversion, we have
successfully turned the problem of using hetero-
geneous treebanks for parsing into the problem of
parsing on homogeneous treebanks. Before using
converted...
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Báo cáo khoa học: "Demonstration of Joshua: An Open Source Toolkit for Parsing-based Machine Translation" potx
Ngày tải lên :
17/03/2014, 02:20
... (Fig-
ure 1): one for the live “instant translation” user
interface, one for demonstrating the different com-
ponents of the system and algorithmic visualiza-
tions, and one designated for technical ... and David Chiang. 2005. Better k-best
parsing. In Proceedings of the International Work-
shop on Parsing Technologies.
27
We will rely on 3 workstations:
one for the instant translation
demo, ... Open
source toolkit for statistical machine translation. In
Proceedings of the ACL-2007 Demo and Poster Ses-
sions.
Zhifei Li and Sanjeev Khudanpur. 2008. A scalable
decoder for parsing- based machine...
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Báo cáo khoa học: "Construction of Domain Dictionary for Fundamental Vocabulary" pdf
Ngày tải lên :
17/03/2014, 04:20
... Dong, 2006) and WordNet pro-
vide domain information for Chinese and English,
but there has been no domain resource for Japanese
that are publicly available.
8
Domain dictionary construction methods ... Preparing key-
words for each domain (§3.1). 2 Associating JFWs
with domains (§3.2). 3 Reassociating JFWs with
NODOMAIN (§3.3). 4 Manual correction (§3.5).
3.1 Preparing Keywords for each Domain
About ... NODOMAIN was prepared for those
words that do not belong to any particular domain.
As for the latter issue, you might use keyword ex-
traction techniques; identifying words that represent
a domain...
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- using similarity for smoothing
- transfer for a limited domain translation application
- parsing with an extended domain of locality
- statistical decisiontree models for parsing
- exploiting heterogeneous treebanks for parsing
- automatic generation of domain models for call centers from noisy transcriptions