Báo cáo khoa học: "A Probabilistic Answer Type Model" docx
Báo cáo khoa học: "A Probabilistic Answer Type Model" docx
... then
the expected answer type is Person.
The number of answer types as well as the num-
ber of rules can vary a great deal. For example,
(Hermjakob, 2001) used 276 rules for 122 answer
types. Greenwood ... a miscellaneous answer type.
1 Introduction
Given a question, people are usually able to form
an expectation about the type of the answer, even
if they do not know the actual...
Tài liệu Báo cáo khoa học: "A probabilistic generative model for an intermediate constituency-dependency representation" pptx
... the depen-
dency relation or the junction operation. Blocks
can be of two types: standard and junction blocks.
Both types may contain any sequence of func-
tional words. Standard blocks (depicted ... WFM) specified in equations
(2-4) and explained in the main text.
3 A probabilistic Model for TDS
This section describes the probabilistic generative
model which was implemented in order to di...
Tài liệu Báo cáo khoa học: "A PROBABILISTIC APPROACH TO GRAMMATICAL ANALYSIS OF WRITTEN ENGLISH BY COMPUTER" pot
... A PROBABILISTIC APPROACH TO GRAMMATICAL ANALYSIS
OF WRITT!N ENGLISH BY COMPUTER.
Andrew David Beale, ... corpus. So far, sample sentences
have been automatically assigned phrase
and clause tags using a probabilistic
system similar to word tagging. It is
hoped that the entire corpus will
eventually ...
We have recently devised an interactive
version of the word tagging system so t...
Tài liệu Báo cáo khoa học: "A PROBABILISTIC PARSER" pdf
... A PROBABILISTIC PARSER
Roger Garside and Fanny Leech
Unit for Computer Research on the English Language ... analysis is therefore
to deduce from the sequence of tags a tentative
sequence of markings for the type and boundaries
of the constituents. Since the beginnings
of constituents tend to be marked, ... treebank of manually parsed sentences can
now be used to extract information...
Báo cáo khoa học: "A Probabilistic Model for Fine-Grained Expert Search" pptx
... the probability as
))(()|( rtypePqrP !
,
(10)
where type( r) represents the way r connecting
query and expert. P (type( r)) represents the reliabil-
ity of relation type of r.
Following the Bayes ...
(corre-
sponding to P (type( t,q)) in Equation (12) ) for the
given query q as
t
tt
t
df
dfMIN
qttypeWQ
)(
)),((
''
=
,
(13)
where t means the discovered topic from a docu-...
Báo cáo khoa học: "A Probabilistic Context-free Grammar for Disambiguation in Morphological Parsing" pdf
... rules of the type
"A , B C a, rather than bottom-up reduction and rules
of the sort "B C + A ~ used by the parser.
187
MORPA's grammar comprises three different types
of production ... information
is based on a 44-million-word corpus. We collected
from this database both type and token frequencies:
type frequencies indicate how often a production rule
occurs in th...
Báo cáo khoa học: "A Probabilistic Model for Canonicalizing Named Entity Mentions" docx
... un-
derstood to correspond to entities (types, not men-
tion tokens) and columns are fields, each associated
with an attribute or a part of it. Our approach is
based on a probabilistic graphical model that ... mentions of type person against
a regular expression to recognize entity attributes
from a fixed set of titles and suffixes, and the first,
middle and last names. We treat words in ment...
Báo cáo khoa học: "A Probabilistic Modeling Framework for Lexical Entailment" potx
... wisely integrate indications for entailment,
probabilistic methods have the advantage of be-
ing extendable and enabling the utilization of well-
founded probabilistic methods such as the EM algo-
rithm.
We ... certain model-
ing aspects that need to be improved.
2 Probabilistic Model
Under the lexical entailment scope, our modeling
goal is obtaining a probabilistic score for the like...
Báo cáo khoa học: "A Probabilistic Approach to Syntax-based Reordering for Statistical Machine Translation" potx
... 720–727,
Prague, Czech Republic, June 2007.
c
2007 Association for Computational Linguistics
A Probabilistic Approach to Syntax-based Reordering
for Statistical Machine Translation
Chi-Ho Li, ... China
mhli@insun.hit.edu.cn
guanyi@insun.hit.edu.cn
Abstract
Inspired by previous preprocessing ap-
proaches to SMT, this paper proposes a
novel, probabilistic approach to reordering
which combi...
Báo cáo khoa học: "A Probabilistic Model of Syntactic and Semantic Acquisition from Child-Directed Utterances and their Meanings" pot
... models in as-
suming a very general kind of linguistic knowl-
edge and a probabilistic grammar. Specifically,
we use the probabilistic Combinatory Categorial
Grammar (CCG) framework, and assume ... natural language. The
probabilistic parsing model introduced in Sec-
tion 3 is used to choose the best parse from the
overgenerated set.
5 Training
5.1 Parameter Estimation
The probabilistic...
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