Báo cáo khoa học: "Using Non-lexical Features to Identify Effective Indexing Terms for Biomedical Illustrations" docx
Báo cáo khoa học: "Using Non-lexical Features to Identify Effective Indexing Terms for Biomedical Illustrations" docx
... Greece, 30 March – 3 April 2009.
c
2009 Association for Computational Linguistics
Using Non-lexical Features to Identify Effective Indexing Terms for
Biomedical Illustrations
Matthew Simpson, Dina ... automatically
selecting useful image indexing terms. In future
work, we intend to explore additional features and
alternative tools for mapping text to the UMLS....
Tài liệu Báo cáo khoa học: "Using adaptor grammars to identify synergies in the unsupervised acquisition of linguistic structure" docx
... structure needs
to be “built in” to an adaptor grammar compared to a
comparable PCFG. For example, the adaptor gram-
mars for syllable structure presented in sections 3.3
and 3.6 learn more information ... learnt from the input available to a child.
Here we try to identify linguistic properties that
convey information useful for learning to segment
streams of phonemes into...
Báo cáo khoa học: "Using Similarity Scoring To Improve the Bilingual Dictionary for Word Alignment" doc
... 50
performance
minscore
’Precision1-Dict0.01-Cog7.3’
’Precision1-Dict0.01-Baseline’
’Recall1-Dict0.01-Cog7.3’
’Recall1-Dict0.01-Baseline’
’F-measure1-Dict0.01-Cog7.3’
’F-measure1-Dict0.01-Baseline’
Figure 4: Performance of dictionaries Dict0.01 for
up to one link per word
rebuilding algorithm is independent of the actual
word alignment method used.
Furthermore, we plan to explore ways...
Tài liệu Báo cáo khoa học: "Using Multiple Sources to Construct a Sentiment Sensitive Thesaurus for Cross-Domain Sentiment Classification" doc
... agnostic to the
properties of the classifier and can be used to expand
feature vectors for any binary classifier). L1 regular-
ization enables us to select a small subset of features
for the classifier. ... the total
number of lexical elements and the total number of
features, and N =
n
i=1
m
j=1
c(i, j). Pointwise
mutual information is known to be biased towards
infrequent el...
Tài liệu Báo cáo khoa học: "Using linguistic principles to recover empty categories" ppt
... of rules.
1 for each tree, iterate over nodes from top down
2 for each node X
3 try to insert NP* in X
4 try to insert 0 in X
5 try to insert WHNP 0 or WHADVP 0 in X
6 try to insert *U* ... try to insert a VP ellipsis site in X
8 try to insert S*T* or SBAR in X
9 try to insert trace of topicalized XP in X
10 try to insert trace of extraposition in X
11 for ea...
Tài liệu Báo cáo khoa học: "USING BRACKETED PARSES TO EVALUATE A GRAMMAR CHECKING APPLICATION" ppt
... developed a methodology for using
hand-bracketed parses to examine both the inter-
nal and external performance of a grammar
checker. The internal performance refers to the
behavior of the ... we therefore weight
repaired
to
be preferred as a passive verb. Although this
method for selecting fronted parse trees some-
times leads to false error critiques, it works well
for...
Báo cáo khoa học: "Using Machine-Learning to Assign Function Labels to Parser Output for Spanish" ppt
... function tag and trace informa-
tion. In contrast to English, in many other lan-
guages configurational information is not a good
predictor for LFG grammatical function assign-
ment. For such languages ... memory-based learning to
perform various graph transformations. One of the
transformations is node relabelling, which adds
function tags to parser output. They report an f-
score o...
Báo cáo khoa học: "Using Grammatical Relations to Compare Parsers" pptx
... function tags to Penn
Treebank I style parses; however, as well as
converting the tags into a Carroll et al. for-
mat, we would need to add extra rules to ex-
tract other GRs needed for our application ... Corpus Information
because this anaphora resolution algorithm
can be encoded in terms of the GR information
(Preiss and Briscoe, 2003). For each pronoun,
this algorithm uses s...
Báo cáo khoa học: "Using Search-Logs to Improve Query Tagging" potx
... sentences and
also the automatically generated query training set.
The simplest way to match query tokens to snip-
pet tokens is to allow a query token to match any
snippet token. This can be problematic ... strate-
gies for selecting which annotation to transfer and
find that using the result that was clicked by the user
gives comparable performance to using just the top
result...
Báo cáo khoa học: "Using Anaphora Resolution to Improve Opinion Target Identification in Movie Reviews" docx
... has been performed with quite diverse
263
approaches. Initial approaches combined statisti-
cal information and basic linguistic features such
as part-of-speech tags. The goal was to identify
the ... in comparison to documents
from other domains: Turney (2002) observes that
the movie reviews are hardest to classify since the
review authors tend to give information about the
storyl...