Báo cáo khoa học: "Unsupervised Multilingual Grammar Induction" doc
Báo cáo khoa học: "Prototype-Driven Grammar Induction" pdf
... im-
provements over naive PCFG induction for English
and Chinese grammar induction.
1 Introduction
There has been a great deal of work on unsuper-
vised grammar induction, with motivations rang-
ing from scientific ... first two, one does not confuse the ability of
the system to learn a consistent grammar with its
ability to learn the grammar a user has in mind.
In this paper, we presen...
Tài liệu Báo cáo khoa học: "Unsupervised Discourse Segmentation of Documents with Inherently Parallel Structure" pdf
... our model is as follows:
• Draw the document-level topic proportions β
(doc)
∼
GEM(α
(doc)
).
• Choose the document-level language model φ
(doc)
i
∼
Dir(γ
(doc)
) for i ∈ {1, 2, . . .}.
• Draw ... and each sentence n:
– Draw type t
(k)
n
∼ Unif (Doc, P art).
– If (t
(k)
n
= Doc) ; draw topic z
(k)
n
∼ β
(doc)
; gen-
erate words x
(k)
n
∼ Mult(φ
(doc)
z
(k)
n
)
– Otherwise; draw t...
Tài liệu Báo cáo khoa học: "Unsupervised Translation Induction for Chinese Abbreviations using Monolingual Corpora" ppt
... implemen-
tation, the contexts include current sentence, the ti-
tle of current document, and previous and next sen-
tence in the document. Then, for each ngram (i.e.,
full) of the current sentence (i.e., ... phenom-
ena, we identify possible abbreviations for full-form
phrases. Figure 2 presents the pseudocode of the
full-abbreviation relation extraction algorithm.
Relation-Extraction(Corpus...
Báo cáo khoa học: "Learning Common Grammar from Multilingual Corpus" potx
... languages, and try to extract a common
grammar from non-parallel multilingual corpora.
For this purpose, we propose a generative model
for multilingual grammars that is learned in an
unsupervised ... non-
annotated multilingual corpus, where X
l
is a set
of sentences in language l, and L is a set of lan-
guages. The task is to learn multilingual PCFGs
G = {G
l
}
l∈L
and a common gr...
Tài liệu Báo cáo khoa học: "Unsupervised Topic Modelling for Multi-Party Spoken Discourse" ppt
... USA
jbt@mit.edu
Abstract
We present a method for unsupervised
topic modelling which adapts methods
used in document classification (Blei et
al., 2003; Griffiths and Steyvers, 2004) to
unsegmented multi-party ... that the dataset
itself provides the other, for example by the ex-
plicit separation of individual documents or news
stories in a collection). Spoken multi-party meet-
ings pose a diffic...
Tài liệu Báo cáo khoa học: "TREE UNIFICATION GRAMMAR" pptx
... relations that are present in the
grammar
roles.
Tree unification grammar (TUG) is a formalism which uses
function-argument (FA) specif~ationa
as its primary grammar
structures.
These specifications ... transparently.
Tree adjoining grammars (TAGs) (Joshi, Levy and Takahashi,
1975, Vijay-Shanker and Joshi, 1988) possess trees as basic
grammar structures, and grammar rules ar...
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