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Durham University

Research & business

Research lectures, seminars and events

The events listed in this area are research seminars, workshops and lectures hosted by Durham University departments and research institutes. If you are not a member of the University, but  wish to enquire about attending one of the events please contact the organiser or host department.


 

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Events for 26 February 2020

Kieran Richards: Likelihood Free SAMC

1:00pm, CG91

Approximate Bayesian Computation (ABC) has become a valuable tool for Bayesian Uncertainty Quantification, as it enables inference to be made even when the likelihood is intractable. ABC methods can produce unreliable inference when they introduce high approximation bias into the posterior through careless specification of the ABC kernel. Additionally MCMC-ABC methods often suffer from the local trapping problem which causes poor mixing when the tolerance parameter is low. We introduce a new ABC algorithm, the Stochastic Approximation Monte Carlo ABC (SAMC-ABC), which enables Bayesian Uncertainty Quantification in increasingly complex systems where inference was previously unreliable. SAMC-ABC adaptively constructs the so called ABC kernel, both reducing the approximation bias and providing immunity to the local trapping problem. We demonstrate the performance of the proposed algorithm with some benchmark examples and find that the method outperforms its competitors. We use our algorithm to analyse a computer model which describes the transmission of the Ebola virus against data from the 2014-15 Ebola outbreak in Liberia.

Contact themistoklis.botsas@durham.ac.uk, clare.wallace@durham.ac.uk for more information about this event.


Research Seminar: Educational Values, Narratives and Outcomes: Alignments and Disjunctures in Bhutan

1:00pm to 2:00pm, ED130, Dr Matthew Schuekla, University of Birmingham

Contact ed.research@durham.ac.uk for more information about this event.


Prof Ann Loades: Evelyn Underhill revisited

4:00pm, Abbey House, Palace Green, Seminar Room D/TH 107

Contact michael.snape@durham.ac.uk for more information about this event.


IAS Fellow's Public Lecture - Natural Phenomena as Media: Challenging Perception and Experience Through Multimedia Artworks

5:30pm to 6:30pm, Kingsley Barrett Room, Calman Learning Centre , Alexandra Carr

Contact enquiries.ias@durham.ac.uk for more information about this event.


DEI Public Lecture: Current research addressing the thermal energy challenge

6:00pm to 7:00pm, Hogan Lovell's Lecture Theatre, Professor Tony Roskilly

Contact lynn.gibson@durham.ac.uk for more information about this event.