contextual spelling correction using latent semantic analysis
Tài liệu Báo cáo khoa học: "Spelling Correction Using Context*" pdf
Ngày tải lên :
20/02/2014, 18:20
... speech-understanding systems. There are
about 4,500 words in our lexicon.
2. Spelling Correction Method
The first step in spelling correction is the detection
of an error. There are two possibilities: ... problem of correcting spelling
errors that result in a valid word.
We have limited the detection of spelling errors
to isolated words. Once the word S is chosen for
spelling correction, we perform ... combining the parser and the
spelling correction system should help us here.
11.
References
Elmi, M. 1994. A Natural Language Parser with
Interleaved Spelling Correction, Supporting Lex-
ical...
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Tài liệu Báo cáo khoa học: "Improving Probabilistic Latent Semantic Analysis with Principal Component Analysis" ppt
Ngày tải lên :
22/02/2014, 02:20
... 94304
chen@fxpal.com
Abstract
Probabilistic Latent Semantic Analysis
(PLSA) models have been shown to pro-
vide a better model for capturing poly-
semy and synonymy than Latent S eman-
tic Analysis (LSA). However, ... Indexing by latent semantic analysis. Jour-
nal of the American Society of Information Science,
41(6):391–40 7.
Chris H. Q. Ding. 1999. A similarity- based probability
model for latent semantic ... the latent class . As
in the analysis above, we assume that the latent
classes in the LSA model correspond to the latent
classes of the PLSA model. Making the simplify-
ing assumption that the latent...
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Báo cáo khoa học: " Extending Latent Semantic Analysis with features for dialogue act classification" pot
Ngày tải lên :
08/03/2014, 04:22
... Illinois
Chicago, IL 60607 USA
bdieugen@cs.uic.edu
Abstract
We discuss Feature Latent Semantic Analysis
(FLSA), an extension to Latent Semantic Analysis
(LSA). LSA is a statistical method that is ordinar-
ily ... dia-
logues.
1 Introduction
In this paper, we propose Feature Latent Semantic
Analysis (FLSA) as an extension to Latent Seman-
tic Analysis (LSA). LSA can be thought as repre-
senting the meaning ... as Game, to classify
DAs. The drawback of features such as Game is that
FLSA: Extending Latent Semantic Analysis with features
for dialogue act classification
Riccardo Serafin
CEFRIEL
Via Fucini...
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Báo cáo khoa học: "Computing Term Translation Probabilities with Generalized Latent Semantic Analysis" pptx
Ngày tải lên :
08/03/2014, 21:20
... methods offer an advantage for doc-
ument classification.
2.2 Generalized Latent Semantic Analysis
We use the Generalized Latent Semantic Analy-
sis (GLSA) (Matveeva et al., 2005) to compute se-
mantically ... Dumais, Thomas K. Lan-
dauer, George W. Furnas, and Richard A. Harshman.
1990. Indexing b y latent semantic analysis. Jour-
nal of the American Society of Information Science,
41(6):391–407.
Xiaofei ... es-
timate the translation probabilities (Lafferty and
Zhai, 2001). We use the Generalized Latent Se-
mantic Analysis to compute the translation proba-
bilities.
2.1 Document Similarity
We propose...
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Tài liệu Báo cáo khoa học: "Grammar Error Correction Using Pseudo-Error Sentences and Domain Adaptation" pdf
Ngày tải lên :
19/02/2014, 19:20
... of Korea, 8-14 July 2012.
c
2012 Association for Computational Linguistics
Grammar Error Correction
Using Pseudo-Error Sentences and Domain Adaptation
Kenji Imamura, Kuniko Saito, Kugatsu Sadamitsu, ... grammar error correction
for Japanese particles that uses discrimina-
tive sequence conversion, which corrects erro-
neous particles by substitution, insertion, and
deletion. The error correction ... Japanese particle errors. This task
corresponds to preposition/article error correction in
English. For English error correction, many stud-
ies employ classifiers, which select the appropriate
prepositions/articles,...
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Tài liệu Báo cáo khoa học: "Modeling Wisdom of Crowds Using Latent Mixture of Discriminative Experts" docx
Ngày tải lên :
20/02/2014, 05:20
... June 19-24, 2011.
c
2011 Association for Computational Linguistics
Modeling Wisdom of Crowds Using
Latent Mixture of Discriminative Experts
Derya Ozkan and Louis-Philippe Morency
Institute for ... listeners.
In our experiments, we validate the performance
of our approach using a dataset of 43 storytelling
dyadic interactions. Our analysis suggests three pro-
335
4 Experiments
To confirm the validity ... of crowds”. In this paper, we propose a
new approach for modeling wisdom of crowds
based on the Latent Mixture of Discrimina-
tive Experts (LMDE) model that can automat-
ically learn the prototypical...
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Tài liệu Báo cáo khoa học: "Japanese OCR Error Correction using Character Shape Similarity and Statistical Language Model " pptx
Ngày tải lên :
20/02/2014, 18:20
... very
large market for OCR related applications.
OCR error correction can be thought of a spelling
correction problem. Although spelling correction
has been studied for several decades (Kukich, ...
index into the dictionary using character bigrams as
the access keys (Angell et al., 1983).
In Japanese OCR spelling correction, it is rea-
sonable to generate correction candidates by edit ... simplicity, we will present the method as if it
were for an isolated word error correction.
In English spelling correction, correction candi-
dates are generated by the minimum edit distance
technique...
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Tài liệu Báo cáo khoa học: "Prosodic Aids to Syntactic and Semantic Analysis of Spoken English" ppt
Ngày tải lên :
20/02/2014, 21:20
... obtain a parse for it,
employing syntactic and semantic relaxation
techniques for handling ill-formed sentences
(Huang 1988). If no acceptable analysis is pro-
duced, the parser asks the SR ... dialogue analysis, and dia-
logue management must be used to find the
most likely interpretation for the input string. We
use pragmatics and knowledge of dialogue struc-
ture to find the semantic ... its input
using prosody. Cue words, such as "now" in
"Now, I want to ", are words whose meta-func-
tion in determining the structure of dialogues
overrides their semantic...
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Using a Spend Analysis to Help Identify Prospective Air Force Purchasing and Supply Management Initiatives - Summary of Selected Findings potx
Ngày tải lên :
06/03/2014, 16:20
... - 9 -
DB-434-AF-6 07/03
RAND Approach to Spend Analysis
Reviewed literature on supply strategies including
supply base stratification and spend analysis
Identified different sources of Air Force ... practices
DB-434-AF-6 07/03
RAND Approach to Spend Analysis
Reviewed literature on supply strategies including
supply base stratification and spend analysis
Identified different sources of Air Force ... the Air Force asked RAND to conduct a first-order
spend analysis of Air Force data.
To examine how the Air Force might conduct a spend analysis, we first
reviewed existing literature, interviewed...
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Báo cáo khoa học: "A System for Semantic Analysis of Chemical Compound Names" pdf
Ngày tải lên :
08/03/2014, 01:20
... constraints
corresponding to CHEMorph’s semantic repre-
sentation output. This is not a trivial task since it
requires to formalize the IUPAC rules of syntax
and semantics of the relevant morphemes. ... Workshop, pages 36–44,
Suntec, Singapore, 4 August 2009.
c
2009 ACL and AFNLP
A System for Semantic Analysis of Chemical Compound Names
Henriette Engelken
EML Research gGmbH
Schloss-Wolfsbrunnenweg ... tasks of BioNLP. This paper introduces
the architecture of a system for the syntac-
tic and semantic analysis of such names.
Our system aims at yielding both the de-
noted chemical structure and...
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Báo cáo khoa học: "Semantic Analysis of Japanese Noun Phrases: A New Approach to Dictionary-Based Understanding" doc
Ngày tải lên :
08/03/2014, 06:20
... analysis (abbreviated to
DBA hereafter) for semantic- role relations.
2. Semantic feature-based analysis (abbrevi-
ated to SBA hereafter) for some semantic-
role relations and all other relations. ... the trou-
ble in constructing a semantic- role dictionary
for nouns in the special format for machine-use.
3 Interpretation
of N1 no N2
using a
Dictionary
Semantic- role information of nouns ... can be utilized to solve the dif-
ficult problem in the semantic analysis of N1
1Although our method handles Japanese noun
phrases by using Japanese definition sentences, in this
paper we use...
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Báo cáo khoa học: "A STRUCTURED REPRESENTATION OF WORD-SENSESIR OR SEMANTIC ANALYSIS" pdf
Ngày tải lên :
09/03/2014, 01:20
...
combination with the other system components.
The semantic processor consists of a semantic
knowledge base and a parsing algorithm. The semantic data
base presently consists of 850 word-sense ... lhe semantic analysis is concerned, current
efforts are directed towards tile development of a query
answering system and a language generator. Future studies
will concentrate on discourse analysis. ... Understanding
system are summarized as follows:
Text analysis is performed in four steps:
morphologic,
morphosyntactic, syntactic
and
semantic
analysis. At
each step the results of the preceding...
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Báo cáo khoa học: "A Graph Approach to Spelling Correction in Domain-Centric Search" doc
Ngày tải lên :
17/03/2014, 00:20
... Query-Level Correction: MaxPaths
We now describe our algorithm, MaxPaths, for
spelling correction. The input is a (possibly mis-
spelled) search query s = s
1
, . . . , s
n
. As done in
the word-level correction, ... search query q).
Spelling correction for search queries is important,
because a significant portion of posed queries may
be misspelled (Cucerzan and Brill, 2004). Effective
spelling correction has ... exact spellings of her queries.
Furthermore, it is critical when the exact spelling is
unknown (e.g., person names like Schwarzenegger).
1.1 Spelling Errors
The more common and studied type of spelling...
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Báo cáo khoa học: "Exploring Distributional Similarity Based Models for Query Spelling Correction" docx
Ngày tải lên :
17/03/2014, 04:20
... spelling correction task.
There are two lines of research in conventional
spelling correction, which deal with non-word
errors and real-word errors respectively. Non-
word error spelling correction ... Automatic rule
acquisition for spelling correction. Proceedings of
ICML 1997, pages 734-741.
Eric Mayes, Fred Damerau and Robert Mercer. 1991.
Context based spelling correction. Information
processing ... and the
latter also needs a pronunciation lexicon. Real-
word spelling correction is also referred to as
context sensitive spelling correction, which tries
to detect incorrect usage of valid...
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