weakly supervised selection of keywords
Báo cáo khoa học: "Weakly Supervised Learning of Presupposition Relations between Verbs" pptx
Ngày tải lên :
07/03/2014, 22:20
... difficulty of decision in the annotation
of fine-grained semantic relations.
2
While the first gold standard dataset of verb
pairs was annotated out of context, we constructed
a second gold standard of ... further
discriminating more detailed semantic relations.
3 A Weakly Supervised Approach to
Learning Presupposition Relations
We describe a weakly supervised approach for
learning semantic relations between ... Table 1.
A Weakly Supervised Learning Approach.
Our algorithm starts with a small number of seed
verb pairs selected manually for each relation and
iteratively classifies a large set of unseen...
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Báo cáo khoa học: "Weakly-Supervised Acquisition of Open-Domain Classes and Class Attributes from Web Documents and Query Logs" pot
Ngày tải lên :
08/03/2014, 01:20
... of pairs of a class label and an instance {<C,I>}
Variables: {S} = clusters of distributionally similar phrases
. {V} = vectors of contextual matches of queries in text
. {M
E
} = set of ... Overview of weakly- supervised extraction of
class instances, class labels and class attributes from Web
documents and query logs
study in attribute extraction reports results on a set
of 40 manually-assembled ... clusters of queries based on vectors {V}
04. For each cluster of phrases S in {S}
05. {C
S
} = ∅
06. For each query Q of S
07. Insert labels of Q from {M
E
} into {C
S
}
08. For each label C
S
of {C
S
}
09....
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Báo cáo khoa học: "Weakly-Supervised Acquisition of Attributes over Conceptual Hierarchies" docx
Ngày tải lên :
08/03/2014, 21:20
... to the
root of the hierarchy. The resulting sets of in-
stances constitute the input to the acquisition of
attributes, which consists of four stages:
1) identification of a noisy pool of candidate ... first
of the 9 senses of companies.
Extraction of Attributes for Hierarchy Con-
cepts: The labeled classes of instances linked to
conceptual hierarchies constitute the input to the
acquisition of ... a minimum of 5 (e.g., for Food) to a maxi-
mum of 11 (for Flower), with a mean depth of 8
over the 25 concepts.
Evaluation Procedure: The measurement of re-
call requires knowledge of the complete...
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Create pictures worth framing with this selection of tips 3
Ngày tải lên :
27/01/2014, 16:09
... common to come from a background of thinking everything has to be even and centered.
Though the pursuit of perfection maybe a noble one, it is not needed in the realm of
photography. Capture a more ... picture by having your subject be off to the side of the
frame. If your camera has an auto-focus feature, it may try to lock onto whatever appears in the
middle of the frame. Focus manually and ... following the foregoing tips,
you can learn to make the most of your natural talent, and turn a slew of amateur photos into a
professional portfolio.
wedding photographer - http://www.wedding-photography-tampa.com/...
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Tài liệu Báo cáo khoa học: Selection of stably folded proteins by phage-display with proteolysis docx
Ngày tải lên :
19/02/2014, 12:20
... on the result
of selection. If the cutting sites are in the flexible loop of the
native structure, they could prevent the selection of stable
proteins. By examining the structures of the proteins ... consideration of multi-body
Fig. 3. Effect of a partially unfolded intermediate on the selection result.
If the cutting site for protease is in the unfolded region of an interme-
diate state, selection of ... by the existence of the
slowest exchanging amide protons.
Fig. 2. Effect of structural change on the selection. (A) Structure of
cyt b
562
. Residues M7 and H102 are the ligands of heme. Heme is
represented...
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Tài liệu Báo cáo khoa học: "Semi-supervised Learning of Dependency Parsers using Generalized Expectation Criteria" ppt
Ngày tải lên :
20/02/2014, 07:20
... supervised
CRF supervised
CRF restricted GE
CRF GE
CRF GE human
Figure 1: Comparison of the constraint baseline and
both GE and supervised training of the restricted and
full CRF. Note that supervised ... marginal
probability of a particular edge k → i (i.e. y
i
=k),
the score of any edge k
→ i such that k
= k is
set to 0. The determinant of the resulting modi-
fied Kirchoff matrix K
k→i
is then the sum of ... x.
By relating the sum of the scores of all possible
trees to counting the number of spanning trees in a
graph, it can be shown that Z
x
is the determinant
of the Kirchoff matrix K, which is...
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Tài liệu Báo cáo khoa học: "Generalized Expectation Criteria for Semi-Supervised Learning of Conditional Random Fields" pdf
Ngày tải lên :
20/02/2014, 09:20
... fea-
ture selection is often intuitive, recent work has ex-
perimented with automatic feature selection using
LDA (Druck et al., 2008). For some of the exper-
iments we also use two sets of 33 additional ... useful piece of information.
There are three types of supervised/ semi-
supervised data used in the experiments. Labeled
instances are the traditional or conventionally
874
Proceedings of ACL-08: ... the majority label of the feature and divide the remaining
probability uniformly among the remainder of the labels.
Labeled Instances
10 25 100
supervised HMM 61.6% 70.0% 76.3%
supervised CRF 64.6%...
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Tài liệu Báo cáo khoa học: "Semi-Supervised Learning of Partial Cognates using Bilingual Bootstrapping" doc
Ngày tải lên :
20/02/2014, 12:20
... (cognate) and FF (false-
friend).
5.1 Supervised Method
For both the supervised and semi -supervised
method we used the bag -of- words (BOW) ap-
proach of modeling context, with binary values ... Studies of Intelligence, pp.44-
59.
Grzegorz Kondrak. 2001. Identifying Cognates by
Phonetic and Semantic Similarity. Proceedings of
NAACL 2001: 2nd Meeting of the North American
Chapter of the ... sentences, we used 2/3 of
the sentences for training (seeds) and 1/3 for test-
ing when applying both the supervised and semi-
supervised approach. In Table 3 we present the
number of seeds used for...
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Tài liệu Báo cáo khoa học: "Weakly Supervised Named Entity Transliteration and Discovery from Multilingual Comparable Corpora" ppt
Ngày tải lên :
20/02/2014, 12:20
... advantage of a dictio-
nary (if one exists) to handle NEs which are par-
tially or entirely translated. We take advantage of
dynamically growing feature space to reduce the
number of supervised ... Computational Linguistics
Weakly Supervised Named Entity Transliteration and Discovery from
Multilingual Comparable Corpora
Alexandre Klementiev Dan Roth
Dept. of Computer Science
University of Illinois
Urbana, ... to score a pair of enti-
ties across languages, we compute the similarity
of their time distributions.
The second observation is that NEs often con-
tain or are entirely made up of words that are...
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Tài liệu Báo cáo khoa học: "An Ensemble Method for Selection of High Quality Parses" pdf
Ngày tải lên :
20/02/2014, 12:20
... Ensemble Method for Selection of High Quality Parses
Roi Reichart
ICNC
Hebrew University of Jerusalem
roiri@cs.huji.ac.il
Ari Rappoport
Institute of Computer Science
Hebrew University of Jerusalem
arir@cs.huji.ac.il
Abstract
While ... num-
ber of models N.
Regarding S
3
: As the sample size increases, the
number of T-sentences increases, and their qual-
ity degrades in terms of average f-score but im-
proves in terms of filter ... 100
Number of models − N
Figure 2: The effect of the number of models N on
SEPA (Collins’ model). The scenario is in-domain,
sample size S = 33, 000 and T = 100. We see:
average f-score of T-sentences...
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Báo cáo khoa học: "Simple semi-supervised training of part-of-speech taggers" pptx
Ngày tải lên :
07/03/2014, 22:20
... 7%
relative to their supervised baseline. Spoustova
et al. (2009) use a new pool of unlabeled data
tagged by an ensemble of state -of- the-art taggers
in every training step of an averaged perceptron
POS ... simplify semi -supervised learning consider-
ably.
2.4 Learning algorithms
We assume some knowledge of supervised learn-
ing algorithms. Most of our experiments are im-
plementations of wrapper methods ... Proceedings of the ACL 2010 Conference Short Papers, pages 205–208,
Uppsala, Sweden, 11-16 July 2010.
c
2010 Association for Computational Linguistics
Simple semi -supervised training of part -of- speech...
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Báo cáo khoa học: "Intelligent Selection of Language Model Training Data" ppt
Ngày tải lên :
07/03/2014, 22:20
... perplexity
Billions of words of training data
random selection
in-domain cross-entropy scoring
Klakow's method
cross-entropy difference scoring
Figure 1: Test set perplexity vs. training set size
Selection ... per-
plexity of 124, obtained with a model built from
36% of the Gigaword corpus. Klakow’s method
is even more effective, with an optimum perplex-
ity of 111, obtained with a model built from 21%
of the ... variant of Bayes rule, the
probability P (N
I
|s, N) of a text segment s, drawn
randomly from N, being in N
I
is given by
P (N
I
|s, N) =
P (s|N
I
, N)P (N
I
|N)
P (s|N)
Since N
I
is a subset of N,...
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Ergonomic Principles and Checklists for the Selection of Office Furniture and Equipment doc
Ngày tải lên :
08/03/2014, 13:20
... by use of vertical space, that is,
shelving to hold some of the less frequently used materials.
Modern office chair design has solved many of the problems of
fitting a wide range of different ... range of heights of the mid lumbar region (L2 - L4) of users.
1.16 Armrest height is the vertical distance between the centre of the compressed seat cushion and the fore-and-aft centre of the ... for developing
checklists for office chairs were typical of the development of
other checklists. They are described below.
Development of Checklists for Office Chairs
In developing...
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ON THE VALUATION OF GOODS AND SELECTION OF THE BEST DESIGN ALTERNATIVE docx
Ngày tải lên :
16/03/2014, 11:20
... price offered.
Table 2. Explanation of attribute indices
H. E. Cook, A. Wu: On the valuation of goods and selection of the best design alternative
51
On the valuation of goods and selection of the ... the right
of those shown in the topmost section of Table 1. The
H. E. Cook, A. Wu: On the valuation of goods and selection of the best design alternative
49
can be used with a degree of con®dence ... the intercept as a phenomenological measure of
the value of the product is also intuitive in the absence of
the S-model. The use of V±P as a measure of the driving
force for demand was suggested...
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Báo cáo khoa học: Selection of full-length IgGs by tandem display on filamentous phage particles and Escherichia coli fluorescence-activated cell sorting screening doc
Ngày tải lên :
22/03/2014, 21:21
... expression of soluble IgG and antigen specificity
screening by ELISA. Twenty-six of 186 of the screened
clones were PA-specific binders. Sequence analysis of
the positive clones confirmed the selection of ... mL of the culture was used for infection with fUSE5–
ZZ, as described above. Evaluation of the enrichment in each
round of selection was performed by phage ELISA as
described above.
Library selection ... were
grown, induced for expression of IgG, and subjected to an
additional round of sorting.
Screening of selected clones by ELISA
Following two rounds of FACS selection, single selected
cells were...
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