a stochastic grammatical channel
Báo cáo khoa học: "Machine Translation with a Stochastic Grammatical Channel" doc
Ngày tải lên :
17/03/2014, 07:20
... generating
grammatical output rests mostly on the bigram lan-
guage model; explicit grammatical knowledge can-
not be used. As a result, output grammaticality can-
not be guaranteed. The advantage ... characteristics of both statistical and
grammatical machine translation. As with the
pure statistical translation model described by Wu
(1996) (in which a bracketing transduction gram-
mar ... and Technology
Clear Water Bay, Hong Kong
{dekai,wong}@cs.ust.hk
Abstract
We introduce a
stochastic grammatical channel
model for machine translation, that synthesizes sev-
eral desirable...
- 8
- 350
- 0
A Study of Channel Estimation for OFDM Systems and System Capacity for MIMO-OFDM Systems
Ngày tải lên :
20/11/2012, 11:28
... transmitting data spread over a large bandwidth (usually larger
than 500 MHz) that shares among users. UWB was traditionally applied in
non-cooperative radar imaging. Most recent applications include ... investigated, for both multipath Rayleigh channels and
multipath Ricean channels. The joint PDF of two arbitrary correlated Ricean
random variables has been provided in an integral form. (Chapter ... increasing demands of high data
transmission rate and reliable communication quality, channel estimation has become a
necessary part in the OFDM system. For example, the digital video broadcasting...
- 205
- 638
- 2
Tài liệu Báo cáo khoa học: "Using an Annotated Corpus as a Stochastic Grammar" ppt
Ngày tải lên :
22/02/2014, 10:20
... ~ A may be
40
M. Marcus, 1991. "Very Large Annotated Database of
America~ English".
DARPA Speech and Naawal
Language Workshop, ~ Grove, Morgan
Kaufmarm.
F. Pereira and Y. Schabes, ... characterizes a non-
trivial part of a natural language, .almost every input
string of reasonable length gets an unmanageably large
number of different analyses. Since most of these
analyses ...
Reestimation from Partially Bracketed Corlmra',
Proceedings ACY., 92,
Newark.
P. Resnik, 1992. "Probabilistic Tree-Adjoining
Grammar as a Framework for Statistical Natural
Language...
- 8
- 393
- 0
Báo cáo khoa học: "Bootstrapping a Stochastic Transducer for Arabic-English Transliteration Extraction" pdf
Ngày tải lên :
08/03/2014, 02:21
... distance. IEEE Transactions on Pattern Analysis
and Machine Intelligence, 20(5):522–532.
K. Tsuji. 2002. Automatic extraction of translational
Japanese-katakana and English word pairs. Interna-
tional ... the
867
Metric Arabic Romanized English
1 Bootstrap alakhyryn Algerian
2 Bootstrap wslm Islam
3 Fuzzy M. lkl Alkella
4 Fuzzy M. ’mAn common
5 ALINE skr sugar
6 Leven. asab Arab
7 All mark Marks
8 All rwsywn ... fact that names are
sometimes split differently in Arabic and English.
The Arabic
(2 words) is generally written
as Abdallah in English, leading to partial matches
with part of the Arabic name....
- 8
- 389
- 0
Báo cáo khoa học: "A STOCHASTIC PROCESS FOR WORD FREQUENCY DISTRIBUTIONS" pot
Ngày tải lên :
08/03/2014, 07:20
... baayen@mpi.nl
ABSTRACT
A stochastic model based on insights of Man-
delbrot (1953) and Simon (1955) is discussed
against the background of new criteria of ade-
quacy that have become available ... population param-
eters,
Biometrika
43, 45-63.
Herdan, G. 1960.
Type-toke~ Mathematics,
The Hague, Mouton.
Ku~era~ H. & Francis, W.N. 1967.
Compa-
Lational Analysis of Prese~t-Day American ... present theory is of a phono-
logical rather than a morphological nature, this
parameter models the (occasional) appearance
of new simplex words in the language only, and
cannot be used to model...
- 8
- 409
- 0
Báo cáo khoa học: "A STOCHASTIC APPROACH TO SENTENCE PARSING" pptx
Ngày tải lên :
08/03/2014, 18:20
...
II.
GRAMMATICAL INFERENCE OF A STOCHASTIC GRAMMAR
A. Estimation of Markov Parameters for sample texts
Assume a Markov source model as a collectlon of
states connected to one another by transitions ... trees which are grammatlcally correct but are
not meaningful.
Most importantly, stochastic augmentation of a gram-
mar will be done automatically by feeding a set of
sentences as samples from ...
tlons of Markov Chains, Vol. 41, No.l, The
Annals of Mathematical Statistlcs, 1970
• Baum,L.E. ,An Inequality and Associated Maximi-
zation Technique in Statistical Estimation for
Probabllstlc...
- 4
- 335
- 0
Used goods, not used bads: Profitable secondary market sales for a durable goods channel pptx
Ngày tải lên :
16/03/2014, 11:20
... Canan Savaskan, David Soberman, Miguel Villas-Boas,
Rajiv Lal and an anonymous reviewer for helpful comments on an earlier draft.
References
Blair, R. D., & Lafontaine, F. (1999). Will Khan ... serve as a gateway for future empirical tests and theoretical generalizations.
Acknowledgements The authors thank Fabio Caldieraro, Gregory Carpenter, Preyas Desai, Benjamin
Handel, Karsten Hansen, ... g; a; qðÞec g; a; qðÞ c < 1 þ gaþ qðÞ
q
Ã
1n
2 a qðÞ1Àc a agðÞþ 2a 1ÀcðÞ
a 8þ 5a Þþ4q 1 a Þ
a gaþqðÞ
3a 2q
1ÀcþgaþqðÞ
21 a qðÞ
q
Ã
2n
000
q
Ã
2u
1
6
3g À
a 1þgðÞ
2a q
À
2a 1þ3c a þg 4 a ÞðÞ
a...
- 20
- 332
- 0
Báo cáo khoa học: "A STOCHASTIC FINITE-STATE WORD-SEGMENTATIONAL GORITHM FOR CHINESE" docx
Ngày tải lên :
17/03/2014, 09:20
... indicated by
its so-called 'semantic radical'.
Hanzi
that share the
same 'radical', share an easily identifiable structural
component: the plant names 2, -~ and M share ... share the
GRASS radical; malady names m[, ~,, and t~ share
the SICKNESS radical; and ratlike animal names 1~,
[~, and 1~ share the RAT radical. Some classes are bet-
ter for names than others: ... this case,
[] ri4 is also a word (e.g. a common abbreviation for
Japan) as are 3~ wen2-zhangl 'essay', and ~, yu2
'fish', so there is (at least) one alternate analysis...
- 8
- 310
- 0
Báo cáo khoa học: "Comparing a Linguistic and a Stochastic Tagger" ppt
Ngày tải lên :
17/03/2014, 23:20
... disambiguator has a clearly
smaller error rate than the probabilistic tagger when
a similar (small) amount of ambiguity is permitted
in the output.
A state-of-the-art statistical tagger is trained ... essentially statistical language models automat-
ically derived from usually hand-annotated corpora.
These corpus-based models can be represented e.g.
as collocational matrices (Garside et al. ... Present-Day English (Francis and Ku6era 1982)
that was annotated using the EngCG tags. The cor-
pus was first analysed with the EngCG lexical anal-
yser, and then it was fully disambiguated and,...
- 8
- 223
- 0
Báo cáo khoa học: "A Stochastic Finite-State Morphological Parser for Turkish" doc
Ngày tải lên :
23/03/2014, 17:20
... convenient for a
morphological parser as a word generator/analyzer
to also output a probability estimate for a word
generated/analyzed. In this work, we build such a
stochastic morphological parser for ... The
main advantage of morphology-based models is
that we have at hand the morphological analyses
of the words during recognition. We plan to train
a language model over the morphological features
and ... morphological parser can analyze about
96.7% of the tokens.
The morphological parser may output more
than one possible analysis for a word due to am-
biguity. For example, the parser returns four
analyses...
- 4
- 242
- 0
Theory of stochastic local area channel modeling for wireless communications
Ngày tải lên :
20/11/2012, 11:36
... communications channels of a certain type.
Chapter 3 discusses the basic form that a stochastic local area channel model must
take. Great care is taken in defining a local area and a stochastic local area channel, ... FrequencyUnitAutocovariance 149
6.2.3 SpatialUnitAutocovariance 150
6.2.4 JointUnitAutocovariance 151
6.3 RevisitingClassicalSpatialChannelModels 153
6.3.1 ClassicalSpatialChannelModels 153
6.3.2 ChannelModelSolutions ... research literature, many stochastic wireless channel models are simply ad-hoc mix-
tures of random variables that supposedly generate realistic radio channels. But channel
models of arbitrary...
- 207
- 369
- 0
