inducing combinatory categorial grammars
Báo cáo khoa học: "PREDICTIVE COMBINATORS A METHOD PROCESSING OF COMBINATORY CATEGORIAL GRAMMARS" doc
Ngày tải lên :
08/03/2014, 18:20
...
Uszkoreit, H. 1986. Categorial Unification Grammars.
In Proceedings of Coling 1986, pp. 187-194.
Wittenburg, K. 1985a. Natural Language Parsing with
Combinatory Categorial Grammars in a Graph- ...
in
the
¢ombinator~/ c~lc~lua
(Curry and Feys 1958), this line of Categorial Grammar has
come to be known as Combinatory Categorial Grammar
(CCG). While such an approach to syntax has been ... with Categorial Unification Grammars
consider the question of what method to use for long-distance
dependencies an open one (Uszkoreit 1986; Zeevat, Klein, and
Calder 1986).
The property of Combinatory...
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Tài liệu Báo cáo khoa học: "Accurate Context-Free Parsing with Combinatory Categorial Grammar" pptx
Ngày tải lên :
20/02/2014, 04:20
... phenomena have a more natural representa-
tion in CCG.
2 The Language Classes of Combinatory
Categorial Grammars
A categorial grammar is a grammatical system
consisting of a finite set of words, ... from CCGbank.
A well-known categorial grammar which is not
a CCG is Lambek categorial grammar (Lambek,
1958) whose introduction rules cannot be charac-
terized as combinatory rules (Zielonka, ... ac-
curacy, PARSEVAL measures and depen-
dency accuracy.
1 Introduction
Combinatory categorial grammar (CCG) is a vari-
ant of categorial grammar which has attracted in-
terest for both theoretical...
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Tài liệu Báo cáo khoa học: "k-valued Non-Associative Lambek Categorial Grammars are not Learnable from Strings" pptx
Ngày tải lên :
20/02/2014, 16:20
... Rigid and k-valued Grammars.
Categorial grammars that assign at most k types
to each symbol in the alphabet are called k-valued
grammars; 1-valued grammars are also called rigid
grammars.
Example ... of
classical categorial grammars (we recall that the w-
hole class of classical categorial grammars is equiv-
alent to context free grammars; the same holds for
the class of Lambek grammars (Pentus, ... of learn-
ing categorial grammars from strings and
the need for an adequate structure on ex-
amples.
1 Introduction
Categorial grammars (Bar-Hillel, 1953) and Lam-
bek grammars (Lambek, 1958;...
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Báo cáo khoa học: "Towards Abstract Categorial Grammars" pot
Ngày tải lên :
08/03/2014, 05:20
... Abstract Categorial Grammars
Philippe de Groote
LORIA UMR n
o
7503 – INRIA
Campus Scientifique, B.P. 239
54506 Vandœuvre l
`
es Nancy Cedex – France
degroote@loria.fr
Abstract
We introduce a new categorial ... string},
{A → λx. x, B → λx. a + x + b}
4.2 Regular grammars and rational
transducers
Regular grammars being particular cases of
context-free grammars, they may be handled by
the same construction. ... Introduction
Type-logical grammars offer a clear cut between
syntax and semantics. On the one hand, lexical
items are assigned syntactic categories that com-
bine via a categorial logic akin to...
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Tài liệu Báo cáo khoa học: The bacterium, nontypeable Haemophilus influenzae, enhances host antiviral response by inducing Toll-like receptor 7 expression ppt
Ngày tải lên :
19/02/2014, 00:20
... FEBS 3667
The bacterium, nontypeable Haemophilus influenzae,
enhances host antiviral response by inducing Toll-like
receptor 7 expression
Evidence for negative regulation of host antiviral response ... these results suggest that NTHi potentiates
TLR7-dependent expression of host antiviral genes by
inducing TLR7 expression in epithelial cells.
Discussion
Over the past two decades, tremendous efforts...
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Tài liệu Báo cáo khoa học: Interferon-a induces sensitization of cells to inhibition of protein synthesis by tumour necrosis factor-related apoptosis-inducing ligand ppt
Ngày tải lên :
19/02/2014, 06:20
... Apoptosis 8, 237–249.
10 Abadie A & Wietzerbin J (2003) Involvement of TNF-
related apoptosis -inducing ligand (TRAIL) induction in
interferon gamma-mediated apoptosis in Ewing tumor
cells. Ann ... sensitization of cells to inhibition of
protein synthesis by tumour necrosis factor-related
apoptosis -inducing ligand
Ian W. Jeffrey, Androulla Elia, Ste
´
phanie Bornes*, Vivienne J. Tilleray, Karthiga ... systems [1].
We have previously shown that both TNFa and
tumour necrosis factor-related apoptosis -inducing
ligand (TRAIL) cause rapid downregulation of global
protein synthesis in MCF-7 breast cancer...
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Tài liệu Báo cáo khoa học: "Structural Grammars" docx
Ngày tải lên :
19/02/2014, 19:20
... selections
[
Mechanical Translation
, vol.4, nos.1 and 2, November 1957; pp. 5-10]
Structural Grammars
†
R. B. Lees, Research Laboratory of Electronics,
Massachusetts Institute of Technology, ... Structure of
Linguistic Theory", Preliminary Draft, M.I.T.,
1956, 713 + li pp.
Structural Grammars
9
DEVELOPMENT OF THE VERB PHRASE
1. PHRASE-STRUCTURE RULE to yield verb phrases ... GRAMMATICAL TRANSFORMATIONS to yield non-kernel sentences
a. Passive transformation:
Structural Grammars
7
...
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Tài liệu Báo cáo khoa học: "Bayesian Symbol-Refined Tree Substitution Grammars for Syntactic Parsing" pptx
Ngày tải lên :
19/02/2014, 19:20
... refinement without heuristics.
3 Symbol-Refined Tree Substitution
Grammars
In this section, we propose Symbol-Refined Tree
Substitution Grammars (SR-TSGs) for syntactic
parsing. Our SR-TSG model is ... Artificial
Intelligence Research, 34:637–674.
Trevor Cohn, Phil Blunsom, and Sharon Goldwater.
2010. Inducing Tree-Substitution Grammars. Journal
of Machine Learning Research, 11:3053–3096.
Michael Collins. 2003. ... pages 1098–1107.
Phil Blunsom and Trevor Cohn. 2010. Unsupervised
Induction of Tree Substitution Grammars for Depen-
dency Parsing. In Proc. of EMNLP, pages 1204–1213.
Eugene Charniak and Mark...
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Tài liệu Báo cáo khoa học: "Using adaptor grammars to identify synergies in the unsupervised acquisition of linguistic structure" docx
Ngày tải lên :
20/02/2014, 09:20
... leads to adaptor grammars.
Informally, the units of generalization of adap-
tor grammars are entire subtrees, rather than just
local trees, as in PCFGs. Just as in tree substitu-
tion grammars, each ... a function of DP concentration parameter α. “U”
indicates unigram-based grammars, while “C” indicates
collocation-based grammars.
Sentence → Word
+
Word
→ Phoneme
+
Figure 1: The unigram word ... the start symbol are
shown.
tor grammars using regular expressions for clarity,
but since our implementation does not handle reg-
ular expressions in rules, in the grammars actually
used by the...
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Tài liệu Báo cáo khoa học: "Inducing Gazetteers for Named Entity Recognition by Large-scale Clustering of Dependency Relations" ppt
Ngày tải lên :
20/02/2014, 09:20
... pages 407–415,
Columbus, Ohio, USA, June 2008.
c
2008 Association for Computational Linguistics
Inducing Gazetteers for Named Entity Recognition
by Large-scale Clustering of Dependency Relations
Jun’ichi ... Artificial Intelligence
(AAAI-99).
M. Rooth, S. Riezler, D. Presher, G. Carroll, and F. Beil.
1999. Inducing a semantically annotated lexicon via
EM-based clustering.
S. Sarawagi and W. W. Cohen. ... gazetteer. The ef-
fectiveness of this method was demonstrated for
Japanese NER as well by this study.
Inducing features for taggers by clustering has
been tried by several researchers (Kazama et al.,
2001;...
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