Báo cáo khoa học: "A Hierarchical Bayesian Language Model based on Pitman-Yor Processes" docx
Báo cáo khoa học: "A Hierarchical Bayesian Language Model based on Pitman-Yor Processes" docx
... machine
translation. Most language models fall into the
class of n-gram models, which approximate the
distribution over sentences using the conditional
distribution of each word given a context consist-
ing ... novel language
model based on a hierarchical Bayesian model
(Gelman et al., 1995) where each hidden variable
is distributed according to a Pitman-Yor process, a
nonpa...
Báo cáo khoa học: "A FLEXIBLE NATURAL LANGUAGE PARSER BASED ON A TWO-LEVEL REPRESENTATION OF SYNTAX" ppt
... Verbs, copulas
REF Referent Nouns, pronouns
CONN Connector Prepositions, conjunctions
Articles,
DET Determiner demonstrative adjectives,
adjectival question words
Adverbial
MOD Adverbs
Modifier ... other condi
tions evaluate to false), its action part is exe
cured. An action consists in the construction of
new nodes, in their filling up with particular val
ues (normally depending...
Báo cáo khoa học: "Automatic Acquisition of Language Model based on Head-Dependent Relation between Words" pdf
... grammar,
grammar -based language modeling is expected
to be more powerful and compact in model size
than n-gram -based one.
In this paper we present a language modeling
based on a kind of simple ... statistical machine translation.
Previous works for language modeling can be
broadly divided into two approaches; one is n-
gram -based and the other is grammar -based.
N-gr...
Tài liệu Báo cáo khoa học: "A Pronoun Anaphora Resolution System based on Factorial Hidden Markov Models" docx
... novel FHMM -based pro-
noun resolution system.
2 Model Description
This work is based on a graphical model framework
called Factorial Hidden Markov Models (FHMMs).
Unlike the more commonly known ... few considerations made us reconsider.
First, exceptions are found in the corpus. Personal
pronouns such as she or he are used to refer to coun-
try, regions, states or organizations. Sec...
Báo cáo khoa học: "a Chat-oriented Dialogue System based on the Vector Space Model" ppt
...
This system demonstration paper presents
IRIS (Informal Response Interactive Sys-
tem), a chat
-oriented dialogue system based
on the vector space model framework. The
system belongs to the class ... implementation. Section 3
presents some illustrative examples of dialogues
generated by IRIS, and Section 4 presents the main
conclusions of this work.
37
2 The IRIS Implementation...
Báo cáo khoa học: "A Generative Constituent-Context Model for Improved Grammar Induction" docx
... from
the conditional model used for induction. Here, we
improve on that model in several ways. First, we
construct a generative model which utilizes the same
features. Then, we extend the model to ... manning}@cs.stanford.edu
Abstract
We present a generative distributional model for the
unsupervised induction of natural language syntax
which explicitly models constituent yields...
Tài liệu Báo cáo khoa học: "A Fully Bayesian Approach to Unsupervised Part-of-Speech Tagging∗" docx
... pre-
senting results for conditions ranging from a full tag
dictionary to no dictionary at all. We introduce the
use of a new information-theoretic criterion, varia-
tion of information (Meilˇa, 2002), ... a derivation.
2.2 Model Definition
Our model has the structure of a standard trigram
HMM, with the addition of symmetric Dirichlet pri-
ors over the transition and output distributions:...
Tài liệu Báo cáo khoa học: "A Hierarchical Account of Referential Accessibility" pptx
... bookshelves tonight.
Figure 8: RST tree for text (6), using rhetorical
relations
Figure 9: RST tree for text (6), using intention -based
relations
Conclusion
Veins Theory is based on established notions ... structure: hierarchical organization, as
in the stack -based model and RST's tree
structures, and dominance or nuclear/satellite
motivation
B6-C6
motivation
B6
C6
A6
A6-B6
c...
Báo cáo khoa học: "A Nonparametric Bayesian Approach to Acoustic Model Discovery" docx
... acoustic model
with three supervised ones: 1) an English triphone
model, 2) an English monophone model and 3) a
Thai monophone model. The first two were trained
on TIMIT, while the Thai monophone model ... sub-word models to guide
its hypotheses on phone boundaries.
Bayesian Model for Segmentation Our model is
inspired by previous applications of nonparametric
Bayesian mode...
Báo cáo khoa học: "A Hierarchical Model of Web Summaries" docx
... hierar-
chical Bayesian model, closely followed by the
information-theoretical model using entropy as its
selection criterion.
6 Conclusion
In this paper we have demonstrated the creation of a
topic -model ... entropy-
based model when restricted to the non-regional
section of the corpus. Also if the reduction in
perplexity remains limited for the entropy, χ
2
and
hLLDA models, the...