Báo cáo khoa học: "Directional Distributional Similarity for Lexical Expansion" pot
Báo cáo khoa học: "Directional Distributional Similarity for Lexical Expansion" pot
... v’.
While distributional similarity is most promi-
nently modeled by symmetric measures, lexical
expansion is in general a directional relation. In
IR, for instance, a user looking for “baby ... research
area for a couple of decades (Hindle, 1990; Lin,
1998; Weeds and Weir, 2003).
This paper is motivated by one of the prominent
applications of distributional similarity, namely...
Báo cáo khoa học: "Exploring Distributional Similarity Based Models for Query Spelling Correction" docx
... 60.4% 62.6%
Table 2. Performance results for different models
Table 2 details the performance scores for the
experiments, which shows that both of the two
distributional similarity- based models ... et al., 1997). An investi-
gation on distributional similarity functions can
be found in (Lillian Lee, 1999).
3 Distributional Similarity- Based Mod-
els for Query Spelling...
Tài liệu Báo cáo khoa học: "Bilingual Sense Similarity for Statistical Machine Translation" ppt
... evaluate the similarity for two vec-
tors in the same language, so using cosine dis-
tance to compute the similarity is straightfor-
ward. And we can set a relatively large size for
the vector, ... co-occurrence counts of the two
units. Therefore, questions emerge: how good is
the sense similarity computed via VSM for two
units from parallel corpora? Is it useful for multi-...
Báo cáo khoa học: "Scaling Distributional Similarity to Large Corpora" doc
... the best accuracy/efficiency trade-off.
2 Distributional Similarity
Measuring distributional similarity first requires
the extraction of context information for each of
the vocabulary terms from raw ... wealth of data. Curran
and Moens (2002) show that synonymy extraction
for lexical semantic resources using distributional
similarity produces continuing gains in accuracy
as th...
Tài liệu Báo cáo khoa học: "A COMPUTATIONAL MECHANISM FOR PRONOMINAL REFERENCE" pot
... checked for minimality during a second.
Since update-node is a general mechanism for
adding or modifying information to a node on the
basis of c-commanding constituents it is fairly
straightforward ... algorithm explicitly indicates the potential
antecedents of a personal pronoun. Again, this is
more desirable than leaving this information implicit;
besides the potential (and perha...
Báo cáo khoa học: "SMS based Interface for FAQ Retrieval" pot
... to build in-
formation based services around SMS technology.
Today, a majority of SMS based information ser-
vices require users to type specific codes to re-
trieve information. For example to ... recently allowed users to
formulate queries in natural language using SMS.
For example, many contact centers now allow cus-
tomers to “text” their complaints and requests for
information over...
Báo cáo khoa học: "Statistical Machine Translation for Query Expansion in Answer Retrieval" pptx
... the problem of the lexical gap
by various techniques for question reformulation,
including rule-based syntactic and semantic refor-
mulation patterns (Hermjakob et al., 2002), refor-
mulations based ... gap. For example, syn-
tactic information has been deployed to reformu-
late questions (Hermjakob et al., 2002) or to re-
place questions by syntactically similar ones (Lin
and Pantel, 2...
Báo cáo khoa học: "A Common Framework for Syntactic Annotation" pot
... application-specific format could be
translated directly into the virtual AML, eliminating the
need for the intermediary concrete AML format. However,
especially for existing formats, it is typically ... by the informed
human reader). Hand-developed annotation
schemes used in treebanks are often described
informally in guidebooks for annotators,
leaving considerable room for variation...
Báo cáo khoa học: "Mining the Web for Bilingual Text" pot
... world changes. For
example, Diekema et al., in a presentation at the
1998 TREC-7 conference (Voorhees and Har-
man, 1998), observed that the performance of
their cross-language information retrieval ... (Dunning, 1994). Although this does
introduce a need for language-specific training
data for the two languages under consideration,
it is a very mild form of language dependence:...
Báo cáo khoa học: "Semantic Role Labeling for Coreference Resolution" pot
... descriptive in-
formation into the relations holding between re-
ferring expressions (REs). This layer of semantic
context abstracts from the specific lexical expres-
sions used, and therefore represents ... 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...