[Turing-Southampton] S3RI seminar: Theo Damoulas, Thursday 2-3pm

[Ogden H.E.]

Dear all,

On Thursday (9 January) at 2pm in 54 / 10037 (10B), we have an S3RI seminar from Theo Damoulas (University of Warwick) on "Multiresolution Multitask Gaussian Processes: Air quality in London". Details are given below.

The talk will be followed by tea and cake in the staff reading room on level 4 of building 54.

All are welcome!

Best wishes,

Helen

Multiresolution Multitask Gaussian Processes: Air quality in London

Theo Damoulas, University of Warwick

We consider evidence integration from potentially dependent observation processes under varying spatio-temporal sampling resolutions and noise levels. We offer a multi-resolution multi-task framework, termed MRGPs, while allowing for both inter-task and intra-task multi-resolution and multi-fidelity. We develop shallow Gaussian Process (GP) mixtures that approximate the difficult to estimate joint likelihood with a composite one and deep GP constructions that naturally handle scaling issues and biases. By doing so, we generalize and outperform state of the art GP compositions and offer information-theoretic corrections and efficient variational approximations for inference. We demonstrate the competitiveness of MRGPs on synthetic settings and on the challenging problem of hyper-local estimation of air pollution levels across London from multiple sensing modalities operating at disparate spatio-temporal resolutions.


For the current schedule of S3RI seminars, see https://tinyurl.com/s3riseminar<https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftinyurl.com%2Fs3riseminar&data=01%7C01%7C%7Cb40b2a30eead44ca93e808d7927ead67%7C4a5378f929f44d3ebe89669d03ada9d8%7C0&sdata=XqLluBmXHbtnjFJnxZ1c2MbCc%2FrFFIgjNN4Q8b5OwqM%3D&reserved=0>
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