Tài liệu Báo cáo khoa học: "N Semantic Classes are Harder than Two" doc
Tài liệu Báo cáo khoa học: "N Semantic Classes are Harder than Two" doc
... pages 49–56,
Sydney, July 2006.
c
2006 Association for Computational Linguistics
N Semantic Classes are Harder than Two
Ben Carterette
∗
CIIR
University of Massachusetts
Amherst, MA 01003
carteret@cs.umass.edu
Rosie ... which
features are most significant for identifying which
semantic classes.
5.1 Features
Features for query substitution pairs are extracted
from query logs...
Tài liệu Báo cáo khoa học: N-terminal extension of the yeast IA3 aspartic proteinase inhibitor relaxes the strict intrinsic selectivity ppt
... Switzerland
Gene-encoded inhibitors of aspartic proteinases are
rather rare in nature. Thus, there is a need to under-
stand the mechanisms of action of the few that are
known, in order to exploit their therapeutic ... among these enzymes are a number with
sequences that are very closely related to that of sac-
charopepsin (e.g. the vacuolar aspartic proteinase from
P. pastoris; PpPr)...
Tài liệu Báo cáo khoa học: N-Methyl-L-amino acid dehydrogenase from Pseudomonas putida A novel member of an unusual NAD(P)-dependent oxidoreductase superfamily ppt
... parameters were calculated using nonlinear
least-squares regression with kaleida graph software
(Adelbeck Software, Reading, PA, USA) or IGOR Pro
software (WaveMetrics, Inc., Lake Oswego, OR, USA).
Eqn ... more than
300 times higher than with NADH (0.13 UÆmg
)1
)in
reductive amination of pyruvate. Oxidative deamina-
tion of N-methyl-l-alanine with NADP
+
(0.36 UÆ
mg
)1
) was markedly lowe...
Tài liệu Báo cáo khoa học: "Detecting Semantic Equivalence and Information Disparity in Cross-lingual Documents" doc
... in P2 that are more informa-
tive than portions in P1 (backward entailment), and
should be translated to replace or complement them;
(4) Text portions in P1 describing facts that are not
present ... a larger improvement when they are used in com-
bination.
5 Conclusion
We addressed the identification of semantic equiv-
alence and information disparity in two documents
about the same...
Tài liệu Báo cáo khoa học: "Unsupervised Semantic Role Induction with Global Role Ordering" doc
... Role (SR) The roles that are not PRs are
called secondary roles (SRs). Given N roles in total,
there are (N − K) SRs, denoted by S
1
, S
2
, , S
N−K
.
Unlike PRs, SRs are not constrained to occur ... syntactic and semantic features could provide
clues to the semantic role label of a constituent, non-
local features such as predicate voice could provide
information about the expect...
Tài liệu Báo cáo khoa học: "Ontologizing Semantic Relations" pdf
... verb relations.
These relations, such as (x,
EXPAND, y) are first
automatically learnt from a corpus. The semantic
classes of x and y are then inferred using concep-
tual density (Agirre and ... and y in the corpus. Semantic classes represent
possible common generalizations of the verb ar-
guments. At the end of the process, a set of syn-
tactic -semantic patterns are avail...
Tài liệu Báo cáo khoa học: "Extracting Semantic Orientations of Words using Spin Model" pdf
... list of words with semantic orienta-
tion: positive or negative (desirable or undesirable).
Frequent appearance of positive words in a docu-
ment implies that the writer of the document would
have ... iteratively determines
the semantic orientations of the words neighboring
any of the seed words and enlarges the seed word
set in a bootstrapping manner.
Subjective words are often semanti...
Tài liệu Báo cáo khoa học: Transient RNA–protein interactions in RNA folding docx
... RNA molecule are able to
sense environmental conditions within the cell and sub-
sequently to adopt a certain structure that, in turn,
leads to a functional response [3]. Riboswitches are
structural ... decay of the RNA
molecule [15,16], are major determinants of the folding
kinetics. Further factors that affect the speed and reac-
tion route of RNA folding are ligands that interact
w...
Tài liệu Báo cáo khoa học: Resolving the native conformation ofEscherichia coli OmpA docx
... OmpA, which
was also prepared with urea but without 2-ME. They
suggest that one or more segments of the C-terminal
domain are attempting to insert into the bilayer but
are unable to become part ... signal of OmpA
are modified by cOHBs [37]. The importance of these
modifications was illustrated in subsequent studies
showing that OmpA mutants lacking cOHBs on
Ser163 and Ser167 are incapab...
Tài liệu Báo cáo khoa học: SREBPs: protein interaction and SREBPs Ryuichiro Sato doc
... partner.
Although most nuclear receptors are activated only
when their specific ligands are present, HNF-4 and
LRH-1 appear to be exceptional, in that they are con-
stitutively active in the abundance ... proteins that are postulated to interact
with sterols: HMG-CoA reductase, the Niemann–Pick
C1 protein, and Patched [3]. The C-terminal domain of
SCAP contains five WD repeats, which a...
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