unsupervised recognition of literal
Tài liệu Báo cáo khoa học: Structural bases for recognition of Anp32⁄LANP proteins doc
Ngày tải lên :
18/02/2014, 17:20
... sub-
unit of PP2A as modeled by comparison with the U2A¢–U2B¢¢
complex. The other two subunits shield most of the surface of
PP2A–C. (B) Structure of the U2A¢–U2B¢¢ complex [20].
Study of the interactions ... the structure of
this region is flexible and is likely to be involved in the
regulation of phosphorylation-dependent functions of
Anp32a [1,3].
Probing the dynamics in solution of the Anp32a
LRR ... species of this size in
solution [29]. The flat profile of the relaxation parame-
ters along the sequence indicates that, with the excep-
tion of the first two N-terminal amino acids and of the
C-terminal...
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Tài liệu Báo cáo khoa học: "Using adaptor grammars to identify synergies in the unsupervised acquisition of linguistic structure" docx
Ngày tải lên :
20/02/2014, 09:20
... sequence of Colloc(ations), each
of which consists of a sequence of Words.
sible for an adaptor grammar to generate a sentence
as a sequence of collocations, each of which con-
sists of a sequence of ... expands to each of the 50 dis-
tinct phonemes present in the Brent corpus. This
grammar defines a Sentence to consist of a sequence
of Words, where a Word consists of a sequence of
Phonemes. The ... Journal of Child
Language, 12:271–296.
Karin M¨uller. 2001. Automatic detection of syllable
boundaries combining the advantages of treebank and
bracketed corpora training. In Proceedings of the...
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Tài liệu Báo cáo khoa học: "Unsupervised Segmentation of Chinese Text by Use of Branching Entropy" pdf
Ngày tải lên :
20/02/2014, 12:20
... 0.6
0.7
0.8
0.9
1
10 100 1000 10000 100000 1e+06
size(KB)
recall
precision
434
Proceedings of the COLING/ACL 2006 Main Conference Poster Sessions, pages 428–435,
Sydney, July 2006.
c
2006...
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Tài liệu Báo cáo khoa học: "A Fully Bayesian Approach to Unsupervised Part-of-Speech Tagging∗" docx
Ngày tải lên :
20/02/2014, 12:20
... of the same randomized sets of
sentences used by Smith and Eisner. Note that training on sets
of contiguous sentences from the beginning of the treebank con-
sistently improves our results, often ... variation of information
(Meilˇa, 2002). The variation of information (VI) be-
tween two clusterings C (the gold standard) and C
′
(the found clustering) of a set of data points is a sum
of the ... Bayesian Approach to Unsupervised Part -of- Speech Tagging
∗
Sharon Goldwater
Department of Linguistics
Stanford University
sgwater@stanford.edu
Thomas L. Griffiths
Department of Psychology
UC Berkeley
tom
griffiths@berkeley.edu
Abstract
Unsupervised...
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Tài liệu Báo cáo khoa học: "Web augmentation of language models for continuous speech recognition of SMS text messages" docx
Ngày tải lên :
22/02/2014, 02:20
... Introduction
An automatic speech recognition (ASR) system
consists of acoustic models of speech sounds and
of a statistical language model (LM). The LM
learns the probabilities of word sequences from
text ... afford from the top of the list. However, the
relevance of a query is dependent on the sequence
of past queries (because of the decay factor). Find-
ing the optimal order of the queries takes ... Proceedings of the 12th Conference of the European Chapter of the ACL, pages 157–165,
Athens, Greece, 30 March – 3 April 2009.
c
2009 Association for Computational Linguistics
Web augmentation of language...
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Báo cáo khoa học: Differential recognition of heat shock elements by members of the heat shock transcription factor family ppt
Ngày tải lên :
07/03/2014, 00:20
... protein) of YYY49 and YYT42 con-
tained approximately 1 and 2 ng of hHSF2, and those of YYT50 and
YYT17 contained approximately 0.01 and 0.1 ng of hHSF4, as
judged by the intensity of each band. ... of heat shock protein (HSP) expres-
sion. Many HSPs function as molecular chaperones
that aid the folding of damaged proteins, and
increased accumulation of HSPs is essential for sur-
vival of ... Deletion of the C-terminal half of
hHSF4 (hHSF4-n355–VP16 and hHSF4-n217–VP16)
did not significantly affect transcriptional activity or
HSE specificity, with the exception of a slight decrease
of HSE3P–SV40p–LUC...
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Unsupervised Learning of Narrative Event Chains docx
Ngày tải lên :
07/03/2014, 17:20
... candidates. Of the 740 cloze tests, 714 of the
removed events were present in their respective list
of guesses. This is encouraging as only 3.5% of the
events are unseen (or do not meet cutoff thresholds).
When ... thus a tuple of the event and the
typed dependency of the protagonist: (event, depen-
dency). A narrative chain is a set of narrative events
{e
1
, e
2
, , e
n
}, where n is the size of the chain, ... presorted topics of doc-
uments to learn inferences. In addition, we applied
state of the art temporal classification to show that
sets of events can be partially ordered. Judgements
of coherence...
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Báo cáo khoa học: "Efficient Optimization of an MDL-Inspired Objective Function for Unsupervised Part-of-Speech Tagging" docx
Ngày tải lên :
07/03/2014, 22:20
... a
good start). In Proceedings of the ACL.
S. Goldwater and T. L. Griffiths. 2007. A fully
Bayesian approach to unsupervised part -of- speech
tagging. In Proceedings of the ACL.
M. Hyder and K. Mahata. ... minimize the size of the model simultane-
ously. We define the size of a model as the number
of non-zero probabilities in its parameter vector.
Let θ
1
, . . . , θ
n
be the components of θ. We would
like ... Optimization of an MDL-Inspired Objective Function for
Unsupervised Part -of- Speech Tagging
Ashish Vaswani
1
Adam Pauls
2
David Chiang
1
1
Information Sciences Institute
University of Southern...
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Báo cáo khoa học: "Unsupervised Discovery of Rhyme Schemes" pdf
Ngày tải lên :
07/03/2014, 22:20
... English data is an edited ver-
sion of the public-domain portion of the corpus used
by Sonderegger (2011), and consists of just under
12000 stanzas spanning a range of poets and dates
from the 15
th
to ... 2011.
c
2011 Association for Computational Linguistics
Unsupervised Discovery of Rhyme Schemes
Sravana Reddy
Department of Computer Science
The University of Chicago
Chicago, IL 60637
sravana@cs.uchicago.edu
Kevin ... extremely useful for
large-scale statistical analyses of poetic texts.
• Historical Linguistics/Study of Dialects
Rhymes of a word in poetry of a given time
period or dialect region provide clues...
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Báo cáo khoa học: "Unsupervised Learning of Acoustic Sub-word Units" pot
Ngày tải lên :
08/03/2014, 01:20
... im-
provement in the efficacy of the SSS algorithm as
described in Section 2. It is based on observing
that the improvement in the goodness of fit by up
to two consecutive splits of any of the current HMM
states ... eigen-
vector of Σ
s
and 0 < 1 is typically 0.2.
3. Re-estimate all parameters of this (overgrown)
HMM. Gather the Gaussian sufficient statistics
for each of the 4N states from the last pass
of re-estimation: ... ways of splitting the
N original states than SSS does. E.g. going up from
N = 6 to N +∆ = 9 HMM states could be achieved
by a 4-way split of a single state, a 3-way split of one
state and 2-way of...
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Báo cáo khoa học: "A Bootstrapping Approach to Unsupervised Detection of Cue Phrase Variants" docx
Ngày tải lên :
08/03/2014, 02:21
... research aim of a
paper, or a claimed gap in the literature. Similarly,
in the task of automatic routing of customer emails
and automatic answering of some of these, the de-
tection of threats of legal ... score
of 3.08 to system-extracted sentences in Exp. A,
compared with a baseline of 1.58 and a ceiling of
3.91
10
; in Exp. B, the system scored 3.67, with
a higher baseline of 2.50 and a ceiling of ... number of seed combinations, M is the size of the golden
list, g
i
is the i
t
h member of the golden list and r
ij
is its rank
in the retrieved list of combination j while n
ij
is the number
of golden...
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Báo cáo khoa học: "Unsupervised Learning of Arabic Stemming using a Parallel Corpus" pot
Ngày tải lên :
08/03/2014, 04:22
... performance of the state of the art,
language specific stemmer above.
We can speculate that, because of the statistical
nature of the unsupervised stemmer, it tends to fo-
cus on the same kind of meaning ... views,
conclusions and findings in this paper are those of
the authors and do not necessarily reflect the posi-
tion of policy of the Government and no of cial en-
dorsement should be inferred.
References
P. ... indicates an
improvement of 22-38% in average pre-
cision over unstemmed text, and 96% of
the performance of the proprietary stem-
mer above.
1 Introduction
Stemming is the process of normalizing word...
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Báo cáo khoa học: "Recognition of the Coherence Relation between Te-linked Clauses" potx
Ngày tải lên :
08/03/2014, 05:21
... can cover wider range of in-
stances of re-linkage. The result of the extension is
shown in Table 2 (for cases each of which shares a
subject) and Table 3 (for cases each of which has
distinct ... constituents of one
clause bear certain kind of structural relationship to
those of the other. Although there are an infinite
number of situations, there seems to be only a small
number of properties ... structures of
the clauses between which that relation holds. We
carried out an experiment and obtained the correct
recognition ratio of 82% for the 280 sentences.
1 Introduction
One of the basic...
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Báo cáo khoa học: " Thumbs Up or Thumbs Down? Semantic Orientation Applied to Unsupervised Classification of Reviews" doc
Ngày tải lên :
08/03/2014, 07:20
... is thus a measure of the degree
of statistical dependence between the words. The
log of this ratio is the amount of information that
we acquire about the presence of one of the words
when ... summary of the corpus of reviews.
Domain of Review Number of
Reviews
Average
Phrases per
Review
Automobiles 75 20.87
Honda Accord 37 18.78
Volkswagen Jetta 38 22.89
Banks 120 18.52
Bank of ... are reviews of the
Bank of America. Both are in the collection of 410
reviews from Epinions that are used in the experi-
ments in Section 4.
Table 2. An example of the processing of a review...
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Báo cáo khoa học: Structural and biological effects of a b2- or b3-amino acid insertion in a peptide Application to molecular recognition of substance P by the neurokinin-1 receptor ppt
Ngày tải lên :
08/03/2014, 08:20
... with
a-peptides (oligomers of a-amino acids) has recently been
applied to the syntheses of linear tetrapeptides of somato-
statin [20] and of cyclic tetrapeptide and pentapeptide
analogues of the RGD sequence ... structures of the b-aminoacidsthatbestfitare
shown in Fig. 6. They all correspond to gauche(+) values
of the h angle. The methyl group of b
2
-HAla occupies a
position close to that of CH
2
b of Pro ... response of these agonists could be explained by
the number of receptors to be occupied by these agonists to
get activation of the second messenger cascade as reported
[40].
Enzymatic degradation of...
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