Báo cáo khoa học: "Improving QA Accuracy by Question Inversion" docx
Báo cáo khoa học: "Improving QA Accuracy by Question Inversion" docx
... question,
if the inverted question were given, we could im-
prove the F-measure of accuracy on a question set
by 75%. In this paper, by contrast, we do not manu-
ally provide the inverted question, ... increasing the accuracy
of QA systems on factoid-style questions. We
define the notion of an inverted question, and
show that by requiring that the answers to the
origin...
Báo cáo khoa học: "Improving the Accuracy of Subcategorizations Acquired from Corpora" pdf
... the
resulting SCFs with SCFs obtained by naive fre-
quency cut-off to observe the effects of clustering.
2 Background
2.1 SCF Acquisition for Lexicalized
Grammars
I start by acquiring SCFs for a lexicalized ... B(
α
,
β
)=
1
0
θ
α
−1
ij
(1 −
θ
ij
)
β
−1
d
θ
ij
. The
value of
α
and
β
is determined by moment esti-
mation.
3
By substituting Equations 2 and 3 into
Equation 1, I finally o...
Báo cáo khoa học: "Improving Name Tagging by Reference Resolution and Relation Detection" docx
... one stage by harnessing
the results of the other stages. We dem-
onstrate this by using the results of
coreference analysis and relation extrac-
tion to reduce the errors produced by a
Chinese ... Clustering by Relation
Name Precision Recall F
PER 90.1 91.2 90.5
GPE 89.7 86.8 88.2
ORG 90.6 89.8 90.2
ALL 90.0 88.8 89.4
Table 5 Baseline + Word Clustering by Relation +
Re-r...
Báo cáo khoa học: "Improving Pronoun Resolution by Incorporating Coreferential Information of Candidates" doc
... anaphor in a given
text, a positive instance is created by paring
the anaphor and its closest antecedent. Also a
set of negative instances is formed by paring the
anaphor and each of the intervening ... coreference resolution system by Soon et
al. (2001)
5
, which uses the similar learn-
ing framework as described in Section 3. In
this way, we could do pronoun resolution
just by runni...
Báo cáo khoa học: Improving thermostability and catalytic activity of pyranose 2-oxidase from Trametes multicolor by rational and semi-rational design pdf
... position 535, the back-
bones of the A and C monomers show tighter associa-
tion in L537G by 1.4 A
˚
, and only by 0.9 A
˚
in
L537W ⁄ E542K, compared to model 2IGO. As a result
of these movements, ... concomitant displacement of the substrate
loop by 0.4–0.6 A
˚
, as well as tighter association
between the oligomerization arm in monomers A and
D by 0.6 A
˚
at position 121. In the E542...
Báo cáo khoa học: "Improving Data Driven Wordclass Tagging by System Combination" pptx
... correct tag (recall). This informa-
tion can be used by forcing each tagger also
to
add to the vote for tags suggested by the oppo-
sition, by an amount equal to 1 minus the recall
on the opposing ... combined, select-
ing a single tag from the set proposed by these
taggers. In this and the following sections we
examine a number of them. The accuracy mea-
surements for all...
Báo cáo khoa học: "Improving Summaries by Revising Them" potx
... by more
than 5.
The syntactic structure of each source sen-
tence is extracted using Apple Pie 7.2 (Sekine
1998), a statistical parser trained on Penn Tree-
bank data. It was evaluated by ... (Sekine 1998)
as having 79% F-score accuracy (parseval) on
short sentences (less than 40 words) from the
Treebank. An informal assessment we made of
the accuracy of the parser (based on...
Báo cáo khoa học: "Improving Question Recommendation by Exploiting Information Need" pptx
... num-
ber of community question answering (CQA) ser-
vices such as Yahoo! Answers
1
, Askville
2
and
WikiAnswer
3
where people answer questions post-
ed by other users. These CQA services have built ... return
the most semantically similar questions from the
question archives. As the complement of question
search, we define question recommendation as rec-
ommending questions whose inf...
Báo cáo khoa học: "Improving Search Results Quality by Customizing Summary Lengths" potx
... Categorizing Questions by Expected
Answer Types
In the field of automated question- answering, much
effort has been expended on automatically deter-
mining the kind of answer that is expected for a
given question. ... compromise by showing fragments
instead of sentences.
2.2 Studies Comparing Results Lengths
Recently, a few studies have analyzed the results of
varying search summary leng...
Tài liệu Báo cáo khoa học: Degradation of tropoelastin by matrix metalloproteinases – cleavage site specificities and release of matrikines pptx
... explained by the
fact that the GYGPG motif is preceded by eight
amino acids that could facilitate the adoption of an
active conformation and its stabilization. This has
also been suggested by Moroy ... ionization mode and reflectron mode by accumulat-
ing data from 1800 laser shots per spot. Data acquisition was
performed by flex control 3.0.101.1, which was controlled
by warplc 1....
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