نتایج جستجو برای: مدل loglinear

تعداد نتایج: 120308  

2009
Yan Song Chunyu Kit Xiao Chen

Transliteration of given parallel name entities can be formulated as a phrase-based statistical machine translation (SMT) process, via its routine procedure comprising training, optimization and decoding. In this paper, we present our approach to transliterating name entities using the loglinear phrase-based SMT on character sequences. Our proposed work improves the translation by using bidirec...

Journal: :J. Economic Theory 2001
José A. Scheinkman Thaleia Zariphopoulou

We consider an environment of a fixed size that can be converted to another use. This conversion can be made in steps, but it is irreversible. The future benefits (per unit) from the original use, and from the alternative use, follow a diffusion process. For a fairly general case, we show that the value function must be the unique (viscosity) solution to the associated Hamilton-Jacobi-Bellman e...

2003
Kristina Toutanova Dan Klein Christopher D. Manning Yoram Singer

We present a new part-of-speech tagger that demonstrates the following ideas: (i) explicit use of both preceding and following tag contexts via a dependency network representation, (ii) broad use of lexical features, including jointly conditioning on multiple consecutive words, (iii) effective use of priors in conditional loglinear models, and (iv) fine-grained modeling of unknown word features...

Journal: :Working paper 2022

We propose a novel approximation of the risky steady state and construct first-order perturbations around it for general class dynamic equilibrium models with time-varying non-Gaussian risk. offer analytical formulas conditions their local existence uniqueness. apply this technique to featuring Campbell-Cochrane habits, recursive preferences, disaster risk, show how proposed represents implicat...

2007
Bernd Winkler

The possible discrepancy between a hypothesized model and the observed data is measured by so called Goodness of Fit Statistics. In order to decide whether the observed discrepancy is substantial, the distributions of these statistics under the hypothesised model are needed to perform a statistical test. Because of the diiculty to compute the exact distributions, just when the sample size is sm...

2012
STEPHEN E. FIENBERG ALESSANDRO RINALDO

We study maximum likelihood estimation in log-linear models under conditional Poisson sampling schemes. We derive necessary and sufficient conditions for existence of the maximum likelihood estimator (MLE) of the model parameters and investigate estimability of the natural and mean-value parameters under a nonexistent MLE. Our conditions focus on the role of sampling zeros in the observed table...

2005
Kristina Toutanova Aria Haghighi Christopher D. Manning

Despite much recent progress on accurate semantic role labeling, previous work has largely used independent classifiers, possibly combined with separate label sequence models via Viterbi decoding. This stands in stark contrast to the linguistic observation that a core argument frame is a joint structure, with strong dependencies between arguments. We show how to build a joint model of argument ...

Journal: :Trans. Data Privacy 2009
Ling Guo Xintao Wu

Randomized Response techniques have been investigated in privacy preserving categorical data analysis. However, the released distortion parameters can be exploited by attackers to breach privacy. In this paper, we investigate whether data mining or statistical analysis tasks can still be conducted on randomized data when distortion parameters are not disclosed to data miners. We first examine h...

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