Sparse discriminative latent characteristics for predicting cancer drug sensitivity
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If you have a question about this talk, please contact Zoubin Ghahramani.
Various recent experimental studies have involved assaying the
sensitivity of a range of cancer cell lines to an array of anti-cancer
therapeutics. Alongside these sensitivity measurements high
dimensional molecular characterisation of the cell lines is typically
available, including gene expression measurements, copy number
variation and genetic mutations. We propose a sparse multitask
regression model which learns discriminative latent characteristics
which are highly predictive of drug sensitivity and predictable from
molecular features. We use ideas from Bayesian nonparametrics to
automatically infer the appropriate number of these latent
characteristics. An extension using a binary MRF allows additional
prior knowledge, for example which drugs have shared inhibition
targets, to be incorporated.
This talk is part of the Machine Learning @ CUED series.
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