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Bayesian Statistics is defined as the study of determining the probability of future events by using appropriate information. Bayesian Statistics figure out the future events by utilizing the past information. Future likelihoods which is depends on the previous likelihoods can be utilized by using Bayes Theorem.
Bayesian statistics majorly deals with the various topics, such as Bayesian Models, Bayesian Regression Estimator, Decision Theory, De Finetti’s Theorem, Normal Distribution, Posterior Probability, Conjugate Probability, High Density Interval, and many more. Some of the major software that used in the Bayesian Statistics field are as follows:
- JASP: this is easy to use and majorly used by the SPSS users.
- MCSim: it enables user to design their own simulation model and allow them to perform the Monte Carlo Simulation by using Markov Chain Monte Carlo simulations.
- Stan: this is written in the C++ language which is majorly used for the statistical inference.
- OpenBUGS: this software uses the MCMC methods for getting involved in the Bayesian analysis. This software runs on the Linux and Window OS.
Bayesian Inference is defined as a technique which upgrades the likelihood for the hypothesis by using Bayes’ theorem. Bayesian Inference is majorly used in the field of mathematical statistics. It used in the various fields, including medicine, sport, law, engineering, and many others field. Sometimes, it is called as Bayesian probability as it is cordially related to the field of subjective probability.
Moreover, Bayesian hierarchical modeling is defined as a structure of hierarchical type that use the Bayesian approach to estimates the criteria of posterior circulation. It used the Bayesian Methods for estimating the posterior distribution parameters. It uses the two main components which are Hyperprior and Hyperparameter to determine the Posterior Distribution. Design of Hierarchical modeling is made up by integrating the sub-models and Bayes theorem is used to collect the observed data.
Bayesian linear regression involves the statistical analysis with the Bayesian inference. It enables a mechanism to protect the insufficient or distributed data. Bayesian regression can be done in the R software by using the various packages. R2WinBUGS use the WinBUGS to perform it, but it is the oldest package. After that, JAGS is used with the WinBUGS. But now, recently STAN is widely used with R package. It has faster execution speed and provides the meaningful answers than WinBUGS and JAGS.
An advanced Markov Chain Monte Carlo refers to a method which is mainly used for sampling the parameter of ODE models. Mcmc_clib software uses one locally adaptive algorithm which is named as SMMALA. This software uses Fisher information to determine the effective moves. Advanced MCMC deals with various topics, such as Gibbs Sampler, Metropolis-Hastings Algorithm, Dynamic Weighting, Population-Based MCMC Methods, Auxiliary Variable MCMC Methods, Stochastic Approximation Monte Carlo, Wang-Landau Algorithm, Sample Metropolis-Hastings Algorithm, etc.
SSM is defined as a linear function which looks like as a cluster size and is characterized by a PPF. SSM stands for Species Sampling Model which mainly uses construction that occurs from the prior distributions of the Bayesian nonparametric. Pitman Yor process and Normalized inverse Gaussian are the two most known example of the Species Sampling Model.
Bayesian nonparametric model refers to a statistical model which is mainly concerned with the selection of a model at the level of complexity. This model determines the finite sample of observations by using the limited subset of the accessible parameters. It is known as a useful way for getting the pliable models. This model doesn’t need to do the Bayesian model comparison explicitly for concluding the adequate model from the available data. Nonlinear regression, Hidden Markov Methods, Density equation, sequential Modeling, density estimation are the some examples of Bayesian nonparametric model.
Dirichlet distribution is generally take place in the statistics and probability which is majorly involved in the family of continuous multivariate probability distributions. This family is parametrized by positive reals of vector α. In Bayesian statistics, it is used as a prior distribution. It acts as an important mean for finite sets as it models the random PMF for finite sets. The process of modeling the random PMF with the limitless options is termed as Dirichlet process.
Furthermore, Bayesian Statistics deals with the number of major topics which including, Conjugate Priors, Prior Probability, Semi Conjugate Prior Distribution, p-value, Posterior belief Distribution, Prior Belief Distribution, Inherent Flaws in Frequentist Statistics, Bernoulli likelihood function, Test for Significance, Bayes Factor, Cromwell’s Rule, Conditional Probabilities, Linear Regression, Inferential Statistics, and many more. Few Progressive topics that involved in the field of Bayesian Statistics are listed below:
- Gaussian process
- Polya trees
- Dependent DP
- Bayesian Networks
- Sequential Monte Carlo
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One of the most common approach and frequently used approach is Bayesian methods. These methods are used to provide criteria for both decision making and statistical approach Axiomatic systems are one of the most common approach which is used in Bayesian methods . There are several logical methodology is used in these type of statistical methods. Bayesian methods can solve many difficulties and problems which are generally solved and any kind of statistical approaches are applied in these methods. Interpretation of probability is done for conditional measurement . Bayesian statistic is based on rational probability. Bays theorem defines and examines that how modification should be mad e. Some special kind of situation often met scientific and systematic reporting. Bayesian statistics is also used to examine scientific reporting which is done by the help of public decision . The Bayesian statistics is used on simple mathematical formula which is used for conditional probability. Bayesian approaches includes various type of studies in statistics, and inductive logic. Bayes' Theorem is centralize approach which can be enterprise and simplifies in both simple calculations as well as conditional problems. Hence a typical Bayesian statistics can be formulate for probability model of data also its decide prior distribution with unknown model parameters.
STAT:4520 (22S:138) BAYESIAN STATISTICS
- Bayesian statistical analysis, Bayesian , frequentist methods compared, Bayesian model specification.
- choice of priors, computational methods, Bayesian data analysis , appropriate software.
- interpretation presentation , statistical methods , apply the methods , linear regression , amenable.
- Bayes' Rule, Exponential Families, Likelihoods, Prior and Posterior Distributions, Conjugate Priors, Models for Normal Data, Multivariate Normal, Shrinkage, Bayesian Linear Models, Informative and Noninformative Priors, Bayesian Statisticsive or Objective Bayes, Monte Carlo Integration, Rejection and Importance Sampling, Markov Chains, The Gibbs Sampler, Hierarchical Models, Exchangeability; Linear Models Revisited, Complicated MCMC Algorithms, Empirical Bayes, Sensitivity Analysis, Hypothesis Testing, The Bayes Factor Goodman, Model Choice vs. Model Averaging, Stochastic Variable Selection, The Kalman Filter, Sequential Monte Carlo, Bayesian Data Analysis, Rationale behind Bayesian Methods vs. Classical Methods, Motivation for Bayesian Modeling, Specification of Joint Density and Prior Distributions, Exchangeability.
- Interpretations of Probability, Frequentist Definition of Probability, Bayesian Statisticsive Probability, Conditional, marginal, and joint probability distributions, Bayes' Law, Bayes' Law with one or more simple events, Role of Bayes' Law in developing posterior distribution for inference, Posterior mean and variance, Specifying Bayesian Models, Likelihood Theory, Definition of Likelihood Function, Definition of MLE's, Likelihood Principle, Bayesian Framework, Proportionality and role of Normalizing Constant, Posterior Intervals, Bayesian vs. Frequentist coverage, Pre-experimental vs. Post-experimental coverage, Frequentist coverage for Bayesian Intervals, Formal Definition of Credible Interval, Quantile-based Intervals, HPD Intervals, Conjugate Priors, Definition of Conjugate prior for a sampling model, The Beta-Binomial Bayesian Model, The Poisson-Gamma Bayesian Model, Possible Bayesian point estimators, Posterior mean as a combination of the sample mean and prior mean, Bayesian Learning/Updating, Bayesian Models for Normal Data, Reasons for using a Normal Model for Data, Conjugate Analysis for Normal Data.
- Prior precision, data precision, posterior precision, Posterior mean as a combination of the sample mean and prior mean, Conjugate Analysis for Normal Data, Inverse gamma prior distribution, Conjugate Analysis for Normal Data, Prior for mu depends on sigma, Role of n and s_0 in weighting of sample mean and prior mean, Bayesian Analysis for Multivariate Normal Data, Probability review and philosophy, probability distributions and CLT, Likelihoods and maximum likelihood estimation, Likelihoods; using R, Bayes Theorem - discrete version, Priors and posteriors, Conjugate priors, binomial model, Poisson model, Gaussian model, Exponential model, Fisher Information, Priors, Linear Regression, Hypothesis testing, Monte Carlo estimation, Markov chains, Metropolis-Hastings sampling, Gibbs sampling, complete conditionals, prior sensitivity, Exchangeability, MCMC monitoring and convergence diagnostics
Introduction to Bayesian Statistics, Logic probability & uncertainty, Discrete random variables, Bayesian inference for discrete random variables
Bayesian Inference For Binomial Proportion and Poisson Mean
Continuous random variables, Bayesian inference for binomial proportion, Comparing Bayesian and frequentist inferences for proportion, Bayesian inference on Poisson mean.
Bayesian Inference For Normal Mean
Bayesian inference for normal mean, Comparing Bayesian and Frequentist inferences for mean, Bayesian inference for difference between means
Bayesian Inference for Simple Linear Regression Model, Robust Bayesian methods, Bayesian inference for normal standard deviation
Logic probability & uncertainty
Discrete random variables
Bayesian inference for discrete random variables
Bayesian Inference For Binomial Proportion and Poisson Mean
Continuous random variables
Bayesian inference for binomial proportion
Comparing Bayesian and frequentist inferences for proportion
Bayesian inference on Poisson mean
Bayesian Inference For Normal Mean
Bayesian inference for normal mean
Comparing Bayesian and Frequentist inferences for mean
Bayesian inference for difference between means
Bayesian Inference for Simple Linear Regression Model
Robust Bayesian methods
Bayesian inference for normal standard deviation
Large scale Bayesian analysis
Basic tools (models, conjugate priors and their mixtures)
Bayesian estimates, tests and credible intervals
Foundations (axioms, exchangeability, likelihood principle)
Bayesian computations (Gibbs sampler, data augmentation, etc.)