COMPUTATIONAL STATISTICS - Project Jupyter...Date Tuesday January 22,2019 COMPUTATIONAL STATISTICS...

3
Date Tuesday January 22,2019 COMPUTATIONAL STATISTICS MSDS 628 ol Tif James Wilson re sampling methods boostrap MC MC kernel density estimation histogram artificial neural networks additivemodels Bayesian truth serum NLP latent Dirichlet Allocation Overall topic w distribution Experimental design multi armed bandit gambling Reinforcement learning Review of Statistical Models Random Variable Number w prob distr Whatvalues with what probability Definition X possible values for a random variable X Pdf IP Xix XC X coff i IP XIX X C X Example 3 coin head ii iii is Iii 3 Is

Transcript of COMPUTATIONAL STATISTICS - Project Jupyter...Date Tuesday January 22,2019 COMPUTATIONAL STATISTICS...

Page 1: COMPUTATIONAL STATISTICS - Project Jupyter...Date Tuesday January 22,2019 COMPUTATIONAL STATISTICS MSDS 628 ol Tif James Wilson resamplingmethods boostrap MCMC kernel densityestimation

Date Tuesday January 22,2019

COMPUTATIONAL STATISTICSMSDS 628 ol TifJames Wilson

resamplingmethods boostrapMCMCkerneldensityestimation histogramartificial neural networksadditivemodels

Bayesian truth serumNLP latent Dirichlet Allocation Overalltopic wdistributionExperimental design multi armed bandit gamblingReinforcement learning

Review of StatisticalModelsRandomVariable Number w probdistr

Whatvalues with whatprobabilityDefinition

X possiblevalues for a randomvariable XPdf IP Xix XC Xcoff i IP XIX XC X

Example3coin head

ii iii is Iii3 Is

Page 2: COMPUTATIONAL STATISTICS - Project Jupyter...Date Tuesday January 22,2019 COMPUTATIONAL STATISTICS MSDS 628 ol Tif James Wilson resamplingmethods boostrap MCMC kernel densityestimation

Example Icontinue RVsX n U OilR X O 5 O

Xcould take infinitevalue1 tooReason why we think about intervals forcontinousvariables

IPCXEO 5 42 PDF

For continous RVs we use 1PMcA contained insome set A

PHEB SB fCxDX

ExampleIPCYEO 8

f I IEirIIF a Fca flat

Distributions

Expected value Standard deviationLinear

varianceQuadratic

Page 3: COMPUTATIONAL STATISTICS - Project Jupyter...Date Tuesday January 22,2019 COMPUTATIONAL STATISTICS MSDS 628 ol Tif James Wilson resamplingmethods boostrap MCMC kernel densityestimation

Jointly distributedrandomvariablesFla b REX Ea YEb La b too

If youhave multiple rvs knowingtheir jointdistribution gives all information about the RV'smarginaldistribution Also havingthe joint Pdf is equivalentto havingtheconditionaldistribution ofeachRV giventhe restHavingthemarginalPdfs ofeach RVsdoes not giveusthe joint distribution or conditional distributions ofall RVs

Disjoint vs Independentd tr

same votesofperson the peoplevotingthe

jointdensity productindependent

Next class CHLClone git repository