Serge is probably best known outside France for 'Je t'aime', but he was responsible for many other and better works across various media including film and prose and especially via 16 albums.
This track is from 1968. It is based on an English language poem written by 'Bonnie' Parker, one half of the 1930s outlaw couple after whom the song is named. Brigitte shares the vocals with Serge.
16:00
On the Balog-Szemerédi-Gowers theorem
Abstract
The Balog-Szemerédi-Gowers theorem is a powerful tool in additive combinatorics, that allows one to roughly convert any “large energy” estimate into a “small sumset” estimate. This has found applications in a lot of results in additive combinatorics and other areas. In this talk, we will provide a friendly introduction and overview of this result, and then discuss some proof ideas. No hardcore additive combinatorics pre-requisites will be assumed.
17:00
Signatures of Streams - Professor Terry Lyons
A calculator processes numbers without caring that these numbers refer to items in our shopping, or the calculations involved in designing an airplane. Number without context is a remarkable abstraction that we learn as infants and which has profoundly affected our world.
Our lives start, progress in complex ways, and are finally complete. So do tasks executed on a computer. Multimodal streams are a pervasive “type”, and even without fixing the context, have a rich structure. Developing this structure leads to wide-ranging tools that have had award-winning impact on methodology in health care, finance, and computer technology.
Terry Lyons is Professor of Mathematics in Oxford and a Fellow of St Anne's College. His research is supported through the DataSig and Cimda-Oxford programmes.
Please email @email to register.
The lecture will be available on our Oxford Mathematics YouTube Channel on 09 November at 5 pm.
The Oxford Mathematics Public Lectures are generously supported by XTX Markets.
10:00
Fast solver for electric motor design
Abstract
Monumo is interested in computing physical properties of electric motors (torque, efficiency, back EMF) from their designs (shapes, materials, currents). This involves solving Maxwell's equations (non-linear PDEs). They currently compute the magnetic flux, and then use that to compute the other properties of interest. The main challenge they face is that they want to do this for many, many different designs. There seems to be lots of redundancy here, but exploiting it has proved difficult.
10:00
Cold start forecasting problems
Note: we would recommend to join the meeting using the Teams client for best user experience.
Abstract
As one of the largest retailers in the world, Tesco relies on automated forecasting to help with decision making. A common issue with forecasts is that of the cold start problem; that we must make forecasts for new products that have no history to learn from. Lack of historical data becomes a real problem as it prevents us from knowing how products react to events, and if their sales react to the time of year. We might consider using similar products as a way to produce a starting forecast, but how should we define what ‘similar’ means, and how should we evolve this model as we start getting real live data? We’ll present some examples to hopefully start a fruitful discussion.