learning stochastic ot grammars a bayesian approach

... statistical methods used for map construction ignore the fact that molecular data may be read with error Often, however, there is ambiguity about some marker genotypes A Bayesian MCMC approach ... The Bayes factors may be computed by taking ratios between estimates of the marginal densities of the data (after integrating out all parameters) If models are taken as equally probable, a priori, ... 73.2 Missing dataIn practice, some marker genotypes are missing The missing data can be handled by the MCMC approach, with an additional step for updating each missing genotype based on this fully

Ngày tải lên: 14/08/2014, 13:21

... estim ated monthly residual stan d ard deviations The reported average of 15.5% is large and nearly 50% larger than the residual standard deviation of an average firm traded on the NYSE or AMEX as ... estim ated parameters, long-horizon returns for all firms are simulated taking account of the estim ated residual variations and covariations The resulting average abnorm al return is calculated ... they actually appear in the data Since factor loadings and covariance m atrices used to simulate individual firm returns are unknown, I also incorporate estimation risk (e.g., Klein and Bawa (1976)

Ngày tải lên: 30/09/2015, 16:34

... ij] and a shape parameter r[t] & Calculate the two-sided Bayesian tolerance interval via the approach by Pathmanathan et al (26) at either the population or the individual level using the random ... of a Bayesian hierarchal model for establishing the IVIVC can be applied to any of the aforementioned approaches for generating an IVIVC In particular, the focus of the Bayesian hierarchical approach ... that may be appropriate starting points when applying the one-stage approach Although stochastic deconvolution is optimal when a UIR is available, this can be obviated by an identifiable pharmacokinetic

Ngày tải lên: 11/05/2020, 11:44

... Generalized exponential distribution: A Bayesian approach using MCMC methods   Jorge Alberto Achcara,b, Fernando Antȏnio Moalaa* and Juliana Boletab a b Departamento de Matem´atica, Estat´ıstica ... can be a good alternative for the use of the popular gamma or Weibull distributions to analyse lifetime data (see also, Raqab, 2002; Raqab & Ahsanullah, 2001; Zheng, 2002; Sarhan, 2007; Gupta ... ∼ Gamma(aλ , bλ ) ,  ( ,  |  )    J A Achcar et al / International Journal of Industrial Engineering Computations (2015) where aα , bα , aλ and bλ are known hyperparameters and Gamma(a,b)

Ngày tải lên: 14/05/2020, 22:09

... males and in females Internal validation When estimated national MI ratios were applied to Shanghai cancer mortality data the overall cancer incidence in Shanghai was estimated at 5.4% in males and ... NSW, Australia 3Cancer Council New South Wales, Sydney, Australia National Centre for Epidemiology and Population Health, Australian National University, Canberra, Australia 5Department of Medical ... national mortality data and regional cancer registries data Methods Mortality data The Third National Death Survey (NDS) was carried out in 2004 and 2005 to better understand mortality rates and

Ngày tải lên: 05/11/2020, 05:12

... orstands out from the rest, in terms of explaining the data This model averaging approach isnicely facilitated by a Bayesian analysis as detailed in the Bayes factor approach of Kass andRaftery ... Models: Data and Method In this section, we explain the basis for the Bayesian approach that we have taken to obtaining a ranking of value stocks based upon a set of fundamental variables The ... to have the required accountinginformation available at the time when we make the one year ahead forecasts and henceavoids any look-ahead bias We start with the set of 23 fundamental variables

Ngày tải lên: 18/10/2022, 06:08

... reasons First, manipulating... the addresses are the particular values that they are later Each cell is annotated with its associated variable and the type of that variable The type indicates ... Program There is no faster way to crash a program than to make a mistake with memory (Actually, this statement overstates the case: a program need not crash immediately after an erroneous ... program, taking care of such tasks as transferring command-line arguments (see Chapter 5) to main and main’s return value back to the operating system We are finally ready to treat program

Ngày tải lên: 19/03/2014, 14:05

... individual who is found as a result of a database search, has been approached during the last two decades with substantial mathematical analyses, accompanied by lively debate and centrally opposing ... adventitious matches, each database member thus runs arealrisktofaceachargebasedona‘databasehit’.For these reasons, questions that emanate from the use made of matches derived from database searches, as ... problem,’ ‘Bayesian network for a database search setting: suspect and one other individual in the database,’ ‘Bayesian network for a search of a database of size n > 2,’ and ‘Discussion and conclusions’. Methods Preliminaries In

Ngày tải lên: 23/03/2014, 12:20

... Katsaggelos 3 1 Departamento de Lenguajes y Sistemas Inform´aticos, Escuela T´ecnica Superior de Ingenier´ıa Infom´atica, Universidad de Granada, 18071 Granada, Spain 2 Departamento de Ciencias ... Ciencias de la Computaci´on e Inteligencia Artificial, Escuela T´ecnica Superior de Ingenier´ıa Infom´atica, Universidad de Granada, 18071 Granada, Spain 3 Department of Electrical Engineering and Computer ... Trang 1Volume 2006, Article ID 25072, Pages 1 12DOI 10.1155/ASP/2006/25072 A Bayesian Super-Resolution Approach to Demosaicing of Blurred Images Miguel Vega, 1 Rafael Molina, 2 and Aggelos K Katsaggelos

Ngày tải lên: 22/06/2014, 23:20

... equation is the so-called implied binomial trees (Rubinstein (1994), andDerman and Kani (1994)) There are other relevant approaches to calibrating thelocal volatility, see, e.g., Avellaneda et al ... many decades, the general stochastic form has rarely been re-searched In this thesis, we aim to calibrate stochastic volatility models from optionprices We develop a Tikhonov regularization approach ... propose a modified Dupire’s equation associated with stochasticvolatility models, which allows us to formulate the calibration problem as a stan-dard inverse problem of partial differential equations

Ngày tải lên: 09/09/2015, 11:15

... Mathematical Rigorous Approach In the last years awareness for the risks of using stochastic models without careful eration of physical, mathematical and numerical aspects has grown Penland and ... the stochastic PE This abstract approach has the advantage to allow the implementation of a wide class of stochastic terms, including linear, non-linear, additive and multiplicative noise Based ... space A function X : Ω→ Sis called aS-valued random variable if it is(F, S)-measurable. Definition 2.7 Stochastic Process Let(Ω,F, P )be a probability space,(S,S)a measurable space andT a totally

Ngày tải lên: 19/11/2015, 15:47

... reading is understood as an approach to language learning/teaching which is “generally associated with reading large amounts with the aim of getting an overall understanding of the material Readers ... questionnaire In many cases, familiar material and popular titles reflecting the local culture, or, paradoxically, stories of faraway land and strange customs and practices could be the most popular among ... language learning” which has been reported to work in many an Asian countries By doing a great amount of reading under the language teacher’s instruction and facilitation, students are claimed

Ngày tải lên: 24/04/2017, 00:13

... classification Another approach in learning dicdic-tionary was proposed in [6] called Incoherent Dictionary Learning (IDL) This approach forces an incoherent promoting term to make the pairs of atoms ... shared dictionary does not contain the information about the correspondence between the atoms and the class labels that would allow increasing classification performance There are a number of approaches ... important factor to be exploited for learning a good dictionary In another approach, there have been attempts to learn a hybrid dictionary by com-bining class-specific atoms and common shared

Ngày tải lên: 16/12/2017, 06:58

... dataset Nevertheless, large scale datasets anddata streams may require learning algorithms that scale roughly linearly with thetotal amount of data [22] Hence, traditional batch algorithms may ... increasingly large repositories of data is a daunting task that maylikely take decades, as we are at an early stage of a new “data-intensive” scienceparadigm If we are to achieve major breakthroughs, ... potential to handlethe gradual concept drifts inherent to data streams and non-stationary dynamicdatabases Finally, in practical scenarios, the awareness of handling large quantities of data

Ngày tải lên: 02/03/2019, 11:16

... interaction, and expanded content In this paper we examine the e-collaborative tools and strategies the NASATalk CMS has used to facilitate and support a variety of STEM education professional learning ... research Additionally, the community leaders and participants found the online intervention to be at least as attractive, engaging, and entertaining as the existing alternatives available As Bonk ... separate site allowed educators taking the training to share feedback about the training options and among a group having shared experiences and Knowledge Management & E-Learning: An International

Ngày tải lên: 10/01/2020, 05:52

... time-consuming way of learning business processes In doing so, the paper outlines an approach for learning unfamiliar and changed business processes on-the-job Afterwards, the approach is evaluated against ... workplace learning is on-the-job learning (Clarke, 2005) Apart from the concept of workplace learning, also relevant for the approach to be developed are the so-called learning workflows and the adaptation ... the area of knowledge management it is known that collective knowledge and organizational learning are enabled by interacting humans that work on shared digital artifacts (Kimmerle, Cress, &

Ngày tải lên: 16/01/2020, 04:48

... parame-ters, as well as the potentially variable deviation, may be omitted due to the inadequate set of explanatory variables that would make the econometric anal-ysis inaccurate BMA analanal-ysis is the ... modelweights are derived as additional statis-tical parameters in a Bayesian estima-tion set up pro-Consider a linear regression modelwith a constant term, β0, and k poten-tial explanatory variables ... L, and A stand for national income, human capital, pri-vate capital, government capital, la-bor, and technical progress, respec-tively And α + β + γ < 1 Suppose L and A have growth rates n and

Ngày tải lên: 16/01/2020, 15:25

... discovery of a statistical verb lexicon. In EMNLP. Jan Haji ˇ c, Massimiliano Ciaramita, Richard Johans- son, Daisuke Kawahara, Maria Ant ` onia Mart ´ ı, Llu ´ ıs M ` arquez, Adam Meyers, Joakim Nivre, ... is always a patient (A1 ). SRL representations have many potential appli- cations in natural language processing and have recently been shown to be beneficial in question answering (Shen and Lapata, ... model. In NAACL. Dekai Wu, Marianna Apidianaki, Marine Carpuat, and Lucia Specia, editors. 2011. Proc. of Fifth Work- shop on Syntax, Semantics and Structure in Statisti- cal Translation. ACL. 22 gold...

Ngày tải lên: 17/03/2014, 22:20

... by statistical methods. Proceedings of the IEEE, 64:532 – 556. Sawit Kasuriya, Virach Sornlertlamvanich, Patcharika Cotsomrong, Supphanat Kanokphara, and Nattanun Thatphithakkul. 2003. Thai speech ... for Computational Linguistics A Nonparametric Bayesian Approach to Acoustic Model Discovery Chia-ying Lee and James Glass Computer Science and Artificial Intelligence Laboratory Massachusetts ... corpus. Andrew Gelman, John B. Carlin, Hal S. Stern, and Don- ald B. Rubin. 2004. Bayesian Data Analysis. Texts in Statistical Science. Chapman & Hall/CRC, second edition. James Glass. 2003. A...

Ngày tải lên: 07/03/2014, 18:20

... into potential errors (bias and random error) related to data based on clinical examina- Acta Veterinaria Scandinavica 2009, 51:36 http://www.actavetscand.com/content/51/1/36 Page 8 of 10 (page ... of variation and bias in relation to monitoring of animal disease incidence on herd and national level, causal analysis on national level, as well as estimation of validated treatment criteria. Monitoring ... The dotted arrow between population level and farm level indicate that few veterinarians use data analysis in their daily practice and advice. High data quality Low data quality COW POPULATION (herd...

Ngày tải lên: 25/10/2012, 10:45