\dm_csml_event_details UCL ELLIS

Bayesian Molecular LEGO


Speaker

Robert Stojnic

Affiliation

Cambridge Systems Biology Centre

Date

Friday, 07 March 2014

Time

13:00-14:00

Location

Zoom

Link

Malet Place Engineering 1.03

Event series

DeepMind/ELLIS CSML Seminar Series

Abstract

The assembly of cellular components has been traditionally modelled using differential equations. In this work I will present a new formalism that yields a model similar to Bayesian Networks where every node represents one molecule. The intuition behind the model can be captured with an analogy to LEGO building blocks where blocks (=molecules) are successively added to create the final molecular structure. I will show that the structure can be reverse-engineered from measurements of molecular abundance under perturbation. I will discuss the Bayesian approach to structure inference, and derive an efficient maximum a-posteriori inference scheme with uniform priors. I will discuss how the choice of prior has crucial influence on the success of inference.

Biography