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Seminar 7 August 2020 3pm


STREAMLINED VARIATIONAL INFERENCE FOR RANDOM EFFECTS MODELS 

Date: 
Friday 7 August 2020 

Time: 3 pm

Speaker: Prof Matt Wand (University of Technology Sydney)

Abstract:

Variational inference offers fast approximate inference for graphical models arising in computer science and statistics. However, for models containing random effects, direct application of variational inference principles is not sufficient for fast inference due to the sizes of the relevant design matrices. We explain how the notion of matrix algebraic streamlining is crucial for making variational inference practical for models containing very high numbers of random effects. Both nested higher level and crossed random effect structures are discussed.