Room: MB360 Phone: +44 (0)121 204 3632 Email: email@example.com
Supervisor: Dr Tony Beaumont Associate Supervisor: Dr David Evans
Room: MB271 Phone: +44 (0)121 204 3632 Email: firstname.lastname@example.org
Supervisor: Dr Maria Chli Advisor: Dr Radu Calinescu
Room: MB360 Phone: +44 (0)121 204 3632 Email: email@example.com
Supervisor: Dr Christopher Buckingham
Description: Richard will explore and implement efficient methods for managing workflows in web services which are able to account for uncertainty in inputs and internal parameters, using computationally efficient emulator methods. This work will link with existing workflow tools such as BPEL, and GRID solutions such as Taverna and Kepler. The work will form part of the UncertWeb project.
Room: MB306 Phone: +44 (0)121 204 3632 Email: firstname.lastname@example.org
Supervisor: Prof Ian Nabney Advisor: Dr Christopher Buckingham
Room: MB271 Phone: +44 (0)121 204 3632 Email: email@example.com
Supervisor: Dr Maria Chli Advisor: Prof Ian Nabney
Description: Decentralised supply chain formation, a subclass of the task allocation problem, involves determining the set of producers within a network able to supply goods to one or more consumers at the lowest cost. This problem, made more difficult by resource contention and input complementarities, has been tackled in a number of ways, including double and combinatorial auctions, multi-party negotiations, and argumentation-based approaches. In this project we cast the task allocation problem as an optimization of a Markov Random Field (MRF) energy function. Optimising this class of energy functions is known to be NP-hard but efficient approximations to the global minimum can be obtained using Loopy Belief Propagation and its variant methods. In this project we apply Loopy Belief Propagation to the supply chain formation problem, involving the decentralised passing of messages between network participants. We intend to evaluate our approach against previous auction-based and negotiation-based decentralized supply chain formation methods.
Supervisor: Dr Dan Cornford
Start Date: 10/2004 Completion Date: 05/2008
Supervisor: Prof Ian Nabney
Start Date: 10/2003 Completion Date: 09/2007