Báo cáo khoa học: "Relating Probabilistic Grammars and Automata" doc
Báo cáo khoa học: "Relating Probabilistic Grammars and Automata" doc
... pereira}@research.att.com
Abstract
Both probabilistic context-free grammars
(PCFGs) and shift-reduce probabilistic push-
down automata (PPDAs) have been used for
language modeling and maximum likelihood
parsing. ... Relating Probabilistic Grammars and Automata
Steven Abney
David McAllester Fernando Pereira
AT&T Labs-Research
180 Park Ave
Florham ... here with p...
Báo cáo khoa học: "DICTIONARIES, DICTIONARY GRAMMARS AND DICTIONARY ENTRY PARSING" pptx
... utilities, and a number of
opttons. All facilities have been implemented,
except where noted. We have very detailed
grammars for CGE (parsing 98% of the entries),
CEG (95%), and LDOCE (93%); ... Process-
ing and Prolog", m A Walker, MMcCord, J
Sowa and W Wilson (Eds) Knowledge Systems
and ' Prolog, Addison-Wesley, Waltham,
Massachusetts, 291 - 402.
Nakamura, J an...
Báo cáo khoa học: C1–Membrane ATPases and channels doc
... inacti-
vation and the slope factor for other channels were: –74.0 ±
1.7 mV* and 7.6 ± 0,4 mV*** for (R180C) –76.7 ± 1.5*** mV
and 6.6 ± 0.2** mV (R834C) and –75.0 ± 1.5 mV** and 6.4 ±
0.3 mV* ... smegmatis
for tandem expression of DrrA and DrrB and characterized
them as an ATP-binding protein and an integral membrane
protein respectively. In both the expression systems DrrA...
Báo cáo khoa học: "MULTI-LEVEL PLURALS AND DISTRIBUTIVITY" doc
... supported unOer DARPA contracts
#N00014-85-C-0016 and #N00014-87.C-0085. The vmws and con-
clusions contained in this document ere those of the authom and
should not be intecpreted as neceeserily ...
"a" is anomalous and has the type NULL-SET.
For more details on these formal languages and
their associated type system, see the paper by
Landsbergen and Scha [5].
3...
Báo cáo khoa học: "A Probabilistic Answer Type Model" docx
... Parameters
Our probabilistic model requires the parameters
P (C|w), P (C|w, in(w, γ)), and P (in(C, γ)|C),
where w is a word, C is a cluster that w belongs to,
and γ is a question or candidate context. ... the joint and marginal fre-
quency counts of contexts and words (|in(γ, w)|,
|in(∗, γ)| and |in(w, ∗)|). These counts al-
low us to compute the probabilities P (in(w, γ)),
P (in...
Tài liệu Báo cáo khoa học: "Efficient probabilistic top-down and left-corner parsingt Brian Roark and Mark Johnson Cognitive and Linguistic " pptx
...
panded, as well as a history, probability, and
FOM. The highest ranked analysis is popped
from the pending heap, and the category at the
top of its stack is expanded. A category is ex-
panded ... Efficient probabilistic top-down and left-corner parsingt
Brian Roark and Mark Johnson
Cognitive and Linguistic Sciences
Box 1978, Brown University ... (identified) rel-
ative to...
Tài liệu Báo cáo khoa học: "RELATING COMPLEXITY TO PRACTICAL PERFORMANCE IN PARSING WITH WIDE-COVERAGE UNIFICATION GRAMMARS" pptx
... extraposition; sentence and
verb phrase modification; noun phrase comple-
ments and pre- and post-modification; partitives;
coordination of all major category types; and nom-
inal and adjectival comparatives. ... between sentence length and parse
time, a further set of 100 sentences with lengths
distributed uniformly between 13 and 30 words
was created by hand by the auth...
Tài liệu Báo cáo khoa học: "Long-Distance Scrambling and Tree Adjoining Grammars" doc
... motivated grammars,
namely those that exploit the extended domain of lo-
cality and whose trees obey tile constraint of contain-
ing a lexical item and all of its syntactic dependents
(and nothing ... Schabes and David Weir for dis-
cussions and clarifications related to this paper.
t Now at University of Saarbrllcken, Fachbereidt Informatik,
D-W6600 Saarbriicken.
11ntra-cl...
Báo cáo khoa học: "Asymmetry in Parsing and Generating with Unification Grammars: Case Studies From ELU" pot
...
UD (Unification Device) which includes the parser
and facilities such as procedural abswactions and
extended data types (lists and trees) and Estival et
al. (1989) for a description of the ... strands of research; improving
methods of generation so as to IDinimiTe
restric-
tions
on the form of grammars that can be gen-
erated fzom, and identifying problematic properties
o...
Báo cáo khoa học: "A Probabilistic Model of Syntactic and Semantic Acquisition from Child-Directed Utterances and their Meanings" pot
... general kind of linguistic knowl-
edge and a probabilistic grammar. Specifically,
we use the probabilistic Combinatory Categorial
Grammar (CCG) framework, and assume only
that the learner has access ... addressed by
Zettlemoyer and Collins (2005, 2007, 2009), Kate
and Mooney (2007), Wong and Mooney (2006,
2007), Lu et al. (2008), Chen et al. (2010),
Kwiatkowski et al. (2010, 2011...