Parameter/variable

Definition

DP (α, H)

random probability density function coming from the Dirichlet distribution with parameters α and H

H

represents the base distribution

α

concentration parameter

G

the random distribution drawn from the Dirichlet process DP (α, H)

the parameter of G distribution which follows a stick-breaking process (SBP)

is the regression parameters

is the vector of predictors

is the variance in the model

N

the Gaussian distribution

S_i

is the speed observation

is the mixing proportion

represent a Dirac delta function concentrated at

k

represents the number of mixture components.