dummy variable regression models pdf
Tài liệu Modelling the e®ects of air pollution on health using Bayesian Dynamic Generalised Linear Models pdf
Ngày tải lên :
17/02/2014, 10:20
... linear
models (DGLMs, West et al. (1985) and Fahrmeir and Tutz (2001)) to analyse air
pollution and health data. Dynamic generalised linear models extend generalised
linear models by allowing the regression ... time
(models 1 and 2); a first order random walk (models 3 and 4); a second order random
walk (models 5 and 6); and a local linear trend model (models 7 and 8). To aid
clarity in the following ... four trend models β
t
Long-term trends, overdispersion and temporal correlation are removed from the
health data with one of four trend models: a natural cubic spline of calendar time
(models 1...
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Tài liệu Báo cáo khoa học: Multisite protein phosphorylation – from molecular mechanisms to kinetic models pdf
Ngày tải lên :
18/02/2014, 08:20
... this system is nonlinear with respect to
the Y
n
variables and has no explicit solution except for
special cases [29,82].
Thus comprehensive kinetic models of multisite phos-
phorylation require ... Wee1A.
Mol Cell Biol 25, 10580–10590.
106 Heinrich R, Neel BG & Rapoport TA (2002) Mathe-
matical models of protein kinase signal transduction.
Mol Cell 9, 957–970.
107 Tanaka S, Tak YS & Araki ... challenges and present new opportunities
for mathematical modelling and simulation to obtain
predictive models for the dynamics of cellular regula-
tory networks.
Acknowledgements
The work was supported...
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Tài liệu Báo cáo khoa học: "Lexicographic Semirings for Exact Automata Encoding of Sequence Models" pdf
Ngày tải lên :
20/02/2014, 04:20
... s
i
s
j
. ✷
This completes the proof.
5 Experimental Comparison of , φ and
T, T encoded language models
For our experiments we used lattices derived from a
very large vocabulary continuous speech ... lattices for the develop-
ment set were generated using a competitive base-
line system with acoustic models trained on about
1000 hrs of Arabic broadcast data and a 4-gram lan-
guage model. The language ... – the lexicographic semiring (Golan, 1999) –
which permits an exact encoding of these sorts of
models with the same compact topology as with fail-
ure transitions, but using epsilon transitions....
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Tài liệu Báo cáo khoa học: "Reading Level Assessment Using Support Vector Machines and Statistical Language Models" pdf
Ngày tải lên :
20/02/2014, 15:20
... 40%.
The curves for bigram and unigram models have
similar shapes, but the trigram models outperform
the lower-order models. Error rates for the bigram
models range from 37-45% and the unigram ... scores from language models as
features in another classifier (e.g. an SVM). For ex-
ample, perplexity (P P) is an information-theoretic
measure often used to assess language models:
P P = 2
H(t|c)
, ... measures, it
does not capture syntactic information. We believe
that higher order n-gram models or class n-gram
models can achieve better performance by captur-
ing both semantic and syntactic information....
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Tài liệu Economic Implications of Alternative Scholarly Publishing Models pdf
Ngày tải lên :
20/02/2014, 20:20
... needs, and evolving scholarly publishing business models (Figure 1.1).
1.2.1 Alternative publishing models
This study focuses on three emerging models for scholarly publishing, namely: subscription ... electronic) and electronic-only formats
for toll and open access business models, and then to compare toll and open access models as if
they were all electronic or ‘e-only’. All of these costings ... models of
scholarly publishing, radically changing our capacity to reproduce, distribute, control, and
publish information. The key question is whether there are new opportunities and new models...
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BURN THE FAT FEED THE MUSCLE Fat Burning Secrets of the World’s Best Bodybuilders & Fitness Models pdf
Ngày tải lên :
06/03/2014, 01:22
... based on real world results
Many of the fat burning techniques used by bodybuilders and fitness models are
controversial. The scientific community is often hesitant to accept such “radical”
practices...
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Báo cáo khoa học: "Unsupervised Sense Disambiguation Using Bilingual Probabilistic Models" pdf
Ngày tải lên :
08/03/2014, 04:22
... Work
We have presented two novel probabilistic models
for unsupervised word sense disambiguation using
parallel corpora and have shown that both models
outperform existing unsupervised approaches. ... significant difference in
model performance.
5 Experimental Evaluation
Both the models are generative probabilistic models
learned from parallel corpora and are expected to
fit the training and subsequent ... distribution:
. Note
that in the absence of labeled training data, two
of the random variables and are observed,
while the sense variable is not. However, we can
derive the possible values for our sense...
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Báo cáo khoa học: "Generalized Algorithms for Constructing Statistical Language Models" pdf
Ngày tải lên :
08/03/2014, 04:22
... .
Class-based models. In many applications, it is nat-
ural and convenient to construct class-based language
models, that is models based on classes of words (Brown
et al., 1992). Such models are ... Representation of -gram Language
Models with WFAs
Standard smoothed -gram models, including backoff
(Katz, 1987) and interpolated (Jelinek and Mercer, 1980)
models, admit a natural representation ... experi-
mental results demonstrating its efficiency.
Representation of language models by WFAs. Clas-
sical
-gram language models admit a natural representa-
tion by WFAs in which each state encodes...
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Báo cáo khoa học: "The S-Space Package: An Open Source Package for Word Space Models" pdf
Ngày tải lên :
17/03/2014, 00:20
... information on the algorithms,
code documentation and mailing list archives.
2 Word Space Models
Word space models are based on the contextual
distribution in which a word occurs. This ap-
proach ... word co-occurrences, but more advanced
models may perform a statistical analysis to se-
lect only those features that best distinguish word
meanings. Other models approximate the full set
of features ... dimensionality reduc-
Document-Based Models
LSA (Landauer and Dumais, 1997)
ESA (Gabrilovich and Markovitch, 2007)
Vector Space Model (Salton et al., 1975)
Co-occurrence Models
HAL (Burgess and Lund,...
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Báo cáo khoa học: "Unsupervised Bilingual Morpheme Segmentation and Alignment with Context-rich Hidden Semi-Markov Models" pdf
Ngày tải lên :
17/03/2014, 00:20
... well as its POS tag.
When multiple conditioning variables are used we
assume a special linearly interpolated backoff form
of the model, similar to models routinely used in lan-
guage modeling.
As ... estimation.
Note how our explicit treatment of word bound-
ary variables b
i
allows us to use a higher order de-
pendence on these variables. If word boundaries are
treated as morphemes on their ... note that our models select a large
number of hyper-parameters on an annotated devel-
opment set, including length penalty, hierarchical
smoothing parameters α, and the subset of variables
to...
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Báo cáo khoa học: "Better Word Alignments with Supervised ITG Models" pdf
Ngày tải lên :
17/03/2014, 01:20
... alignment
potential, and efficient pruning, ITG models can
yield state-of-the art word alignments, even when
the underlying gold alignments are highly non-
ITG. Our models yielded the lowest published er-
ror ... con-
firm and extend this result, showing that one-to-
one ITG models can perform as well as, or better
than, general one-to-one matching models, either
using heuristic weights or using rich, learned ... alignments, word alignment models must
constrain the set of alignments considered. In this
section, we discuss and compare alignment fami-
lies used to train our discriminative models.
Initially, as...
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Báo cáo khoa học: Slow deactivation of ribulose 1,5-bisphosphate carboxylase/oxygenase elucidated by mathematical models pdf
Ngày tải lên :
22/03/2014, 21:20
... 10ị
was solved to yield the analytic expressions for the variables
[ER], [ERC] and [ERO]. These expressions were used to elim-
inate the three fast variables from the full system equations,
resulting ... external concen-
tration of XuBP was fixed to 50 l
M, RuBP concentration was con-
sidered to be a variable with an initial value 0, CO
2
and oxygen
were fixed at 250 l
M, and PDBP was set to zero. ... defined combinations thereof. Further,
the simplified equation system was used to relate the slow
rate variables to the observable quantities describing the
fallover effect (i.e. the fallover extent...
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Báo cáo khoa học: "Low-cost Enrichment of Spanish WordNet with Automatically Translated Glosses: Combining General and Specialized Models" pdf
Ngày tải lên :
23/03/2014, 18:20
... translation
models and on their combination with general
models in order to achieve a proper balance be-
tween precision (specialized in-domain models)
and recall (general out-of-domain models) . ... cooperation between ‘EU’ and ‘WNG’
models. ‘EU’ models provides recall, for instance
by suggesting translation candidates for ‘bombs’
or ‘price below’. ‘WNG’ models provide preci-
sion, for instance ... suggested by Table 2, the
weight of language models is concentrated on the
‘WNG’ language model (λ
lmW NG
= 0.95).
4.4 Combining Sources: Translation Models
In this section we study the possibility...
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Báo cáo hóa học: " Comparison of regression models for estimation of isometric wrist joint torques using surface electromyography" potx
Ngày tải lên :
19/06/2014, 08:20
... of muscles for
the case of models trained with two channels. It is evi-
dent that models trained with five channels are superior
to models trained with two. However models trained
with eight channels ... of
commonly utilized regression models for isometric tor-
que estimation and identify their merits and shortcom-
ings under circumstances where the accuracy of
predictive models has been reported ... channels were used for training
models.
Cross Session
Passages of time as well as electrode displacement
adversely affect accuracy of models trained with SEMG
[22,25]. Models trained with session...
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báo cáo hóa học:" Research Article On the Impact of Children’s Emotional Speech on Acoustic and Language Models" pdf
Ngày tải lên :
21/06/2014, 20:20
... linguistic models. In the first
experiment, the acoustic models are adapted whereas the
linguistic models are kept fixed. In the second experiment, it
is the other way round: only the linguistic models ... Ohm A.
Again, the pure influence on the language models is given
in terms of the perplexity of the language models in Ta b le 8 .
Since the language models are trained on more data, the
perplexities ... notasmuchasthe
ASRperformancewouldsuffer.
To adapt the acoustic models to emotional speech,
the acoustic models are trained on Ohm
M, Ohm E, and
Ohm
A, respectively. The linguistic models are trained on
Ohm
N and are the...
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