Tài liệu Báo cáo khoa học: "Constraints on Non-Projective Dependency Parsing" doc
Tài liệu Báo cáo khoa học: "Constraints on Non-Projective Dependency Parsing" doc
... implications for non-projective
dependency parsing. We conclude in section 7.
2 Dependency Graphs
A dependency graph is a labeled directed graph,
the nodes of which are indices corresponding to
the ... well-formed dependency graph
according to Defi nition 1–2.
3 Constraints
The only conditions so far imposed on dependency
graphs is that the special node 0 be a root and that
the g...
Tài liệu Báo cáo khoa học: "Event Extraction as Dependency Parsing" pdf
... extraction where we take the tree of
relations and their arguments and use it directly as
the representation in a dependency parser (rather
than conventional syntactic relations). Our approach
is conceptually ... expression of intercellu-
lar adhesion molecule-1, P-selectin, and E-selectin,”
the BioNLP’09 annotation contains three distinct
GENE EXPRESSION events anchored on the same
phras...
Tài liệu Báo cáo khoa học: "Self-Training for Biomedical Parsing" doc
... to build is quite short.
This second point is emphasized by the sec-
ond paper on self-training for adaptation (Mc-
Closky et al., 2006b). This paper is based on the
C/J parser and thus its results ... reason-
able, we were unable to make it work.
5 Conclusion
We self-trained the standard C/J parser on
270,000 sentences of Medline abstracts. By do-
ing so we achieved a 20% error reducti...
Tài liệu Báo cáo khoa học: Studies on structural and functional divergence among seven WhiB proteins of Mycobacterium tuberculosis H37Rv pdf
... to conformational differences between
the two proteins. The relative cross-reactivity of poly-
clonal antibodies was used to probe the conforma-
tional variations at the tertiary level among ... conditions, coordinate a [2Fe–2S] clus-
ter. However, based upon the in vitro reconstitution
assay, both were found to be [4Fe–4S] cluster coordi-
nating proteins. Iron–sulfur clusters are one ... dif...
Tài liệu Báo cáo khoa học: "Kernels on Linguistic Structures for Answer Extraction" doc
... and semantics. Our
experiments on question/answer classification
show that the above models highly improve on
bag-of-words on a TREC dataset.
1 Introduction
Question Answering (QA) is an IR task ... Papers (Companion Volume), pages 113–116,
Columbus, Ohio, USA, June 2008.
c
2008 Association for Computational Linguistics
Kernels on Linguistic Structures for Answer Extraction
Alessandro...
Tài liệu Báo cáo khoa học: "Constraints over Lambda-Structures in Semantic Under specification" pptx
... which only makes the anaphoric
content
212
of the pronoun she within the NP
explicit. The anaphoric relationship between
the pronoun she and Mary is represented by the
linking relation between ... deduction calculi for rea-
soning with such underspecified semantic rep-
resentation in order to make progress on this
front. We hope that some of the more ad hoc
features of our definit...
Tài liệu Báo cáo khoa học: "Panel on Natural Language and Databases" pot
... programming environment offers a convenient
yet challenging extension of work already being done with
database query.
First I recite some of the merits of continuing research
on natural language ... language. How much these cross-linguistic
concerns ought to affect the construction of a particular
system is itself one of the questions deserving of atten-
tion, but our experience to da...
Tài liệu Báo cáo khoa học: "REMARKS ON PLURAL ANAPHORA" pptx
...
processes. No operations on RefOs other
than the sum operation will be considered in
the present context.
3. CONSTRAINTS ON SUM FOR-
MATION
Sentences like (1.a) and (1.b) demon-
strate that ... questions. However, we
will give some sketchy answers to the first
and second questions as well.
We consider only two-sentence texts in
which the second sentence contains an
anaphoric p...
Tài liệu Báo cáo khoa học: Transient DNA ⁄ RNA-protein interactions docx
... plectoneme (inter-
wound, as in bacteria). This distinction is relevant not
only for DNA packing, but also for transcription, rep-
lication, and repair. The reason for this distinction is
not only ... histone–DNA interactions
have a predominant influence on the measured nucleo-
some occupancy (average number of histone octamer
levels on a given DNA region in a population of cells)
but not...
