a latent dirichlet allocation method for selectional preferences
Báo cáo khoa học: "A Latent Dirichlet Allocation method for Selectional Preferences" pptx
Ngày tải lên :
07/03/2014, 22:20
... pseudo-
disambiguation task.
Additionally, because LDA-SP is based on a for-
mal probabilistic model, it has the advantage that
it can naturally be applied in many scenarios. For
example, we can obtain ... however,
avoids the drawbacks of traditional class-based ap-
proaches (poor lexical coverage and ambiguity).
LDA-SP achieves state-of-the-art performance on
predictive tasks such as pseudo-disambiguation,
and ... generative probabilistic models, which model
each relation/argument combination as being gen-
erated by a latent class variable. These classes
are automatically learned from the data. This re-
tains...
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Báo cáo khoa học: "A Simple, Similarity-based Model for Selectional Preferences" pdf
Ngày tải lên :
23/03/2014, 18:20
... specific
selectional preferences, generalizing over manu-
ally semantically annotated data using automat-
ically syntactically annotated data.
4 Data
We use FrameNet (Baker et al., 1998), a se-
mantic ... seen headwords against error rate
for a Jaccard similarity-based model (uniform
weights). As can be seen, error rates reach a
plateau at about 25 seen headwords for Jaccard.
For other similarity ... isolated compar-
isons of the two generalization paradigms that
we are aware of, Gildea and Jurafsky’s (2002)
task-based evaluation has found clustering-
based approaches to have better coverage...
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Tài liệu Báo cáo khoa học: "Word representations: A simple and general method for semi-supervised learning" doc
Ngày tải lên :
20/02/2014, 04:20
... learning
approach that we use is that it is simpler and more
general than that of Ando and Zhang (2005) and
Suzuki and Isozaki (2008). Their methods dictate
a particular choice of model and training ... certain word
representations are preferable for certain tasks.
Lin and Wu (2009) finds that the representations
that are good for NER are poor for search query
classification, and vice-versa. We apply ... train-
ing of probabilistic neural nets by importance
sampling. AISTATS.
Blei, D. M., Ng, A. Y., & Jordan, M. I. (2003).
Latent dirichlet allocation. Journal of Machine
Learning Research, 3, 993–1022.
Brown,...
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Tài liệu Báo cáo khoa học: "A New Dataset and Method for Automatically Grading ESOL Texts" pdf
Ngày tải lên :
20/02/2014, 04:20
... extract an error-rate in a way that doesn’t require
manually tagged data. However, we also use an
error-rate calculated from the CLC error tags to ob-
tain an upper bound for the performance of an ... Essay Assessor (IEA) (Landauer et al.,
2003) uses Latent Semantic Analysis (LSA) (Lan-
dauer and Foltz, 1998) to compute the semantic sim-
ilarity between texts, at a specific grade point, and
a ... problem is viable, but the feature types are all
fairly shallow, and the approach doesn’t make effi-
cient use of the training data as a separate classifier
is trained for each grade point.
Recently,...
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Báo cáo khoa học: "A Generalized-Zero-Preserving Method for Compact Encoding of Concept Lattices" pot
Ngày tải lên :
17/03/2014, 00:20
... filter language models: Tera-scale LMs on
the cheap. In Proceedings of the 2007 Joint Con-
ference on Empirical Methods in Natural Language
Processing and Computational Natural Language
Learning ... programming has pro-
duced a variety of software tools for solving these
problems. However, at first blush our instances are
much too large for readily-available set program-
ming tools. Grammars ... the
tractable range.
Definition 2 A unary leaf (UL) is an element x in
a partial order X, such that x is maximal and
x is the successor of exactly one other element.
ULs are special because...
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A SELF-ASSESSMENT BASED METHOD FOR POST- COMPLETION AUDITS IN PAPER PRODUCTION LINE INVESTMENT PROJECTS doc
Ngày tải lên :
18/03/2014, 02:20
... items and the evaluation of areas are
separate, it is possible for e.g. company management to define importance for areas and
for e.g. expert panels to evaluate specific areas. This approach also ...
methodological approaches supplement each other at least partially is known as a relative
view. (Arbnor I & Bjerke B 1997). The advantages and disadvantages of a selected
research strategy ... of an investment evaluation method are more
useful for company management as part of a defined process than as occasional actions.
Conceptual
phase
Pre-feasibility
phase
Feasibility
phase...
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Báo cáo khoa học: "A Latent Topic Extracting Method based on Events in a Document and its Application" pot
Ngày tải lên :
23/03/2014, 16:20
... Document
and its Application
Risa Kitajima
Ochanomizu University
kitajima.risa@is.ocha.ac.jp
Ichiro Kobayashi
Ochanomizu University
koba@is.ocha.ac.jp
Abstract
Recently, several latent topicanalysis methods
such ... Multi-Document Summarization Based on
Latent Semantic Indexing. Journal of Harbin Institute
of Technology,12(1):91–94.
Rachit Arora and Balaraman Ravindran. 2008. Latent
dirichlet allocation based multi-document ... Suzuki, Takashi Uemura, Takuya Kida, and Hi-
roki Arimura. 2010. Extension to word phrase on la-
tent dirichlet allocation. Forum on Data Engineering
and Information Management,i-6.
Yee W. Teh, David...
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The phenomenon of evaporative cooling from a humid surface as an alternative method for air-conditioning
Ngày tải lên :
05/09/2013, 16:10
... Thus, in a process where air
and water are in contact, water will always tend to adiabatic saturation temperature, as in the case of the
adiabatic tunnel described before.
To clarify what has been ... adiabatic saturation temperature of air.
Air is cooled and humidified, gaining enthalpy.
c- Water is at the adiabatic saturation temperature of inlet air.
Air is cooled and humidified maintaining ... the air and water temperature reach the same
value, called “adiabatic saturation temperature”, being the process known as “adiabatic saturation”.
To define this temperature we can suppose a long...
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A novel interval method for validating state enclosures of the
Ngày tải lên :
12/01/2014, 22:04
... (MVR) evaluation and advanced
interval methods (AIM) have been applied to evaluate the iteration formula (7), see Step 4, Section IV. In
VNODE, an interval Taylor series method with QR factorization ... II-C. Although they are fairly efficient for exactly known initial states and parameters, they
are sometimes insufficient for practical scenarios with uncertain but bounded initial states and parameters
which ... optimal, and adaptive controllers. For nonlinear systems, robustness analysis with respect
to uncertain initial states and parameters can be performed by calculating enclosures of all reachable
states....
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