Seminars

See all upcoming seminars in LäsIT and seminar web pages at the homepage for the PhD studentseminars, TDB, Vi2, Theory and Applications Seminars (TAS) @ UpMARC., Department of Mathematics and The Stockholm Logic Seminar.

Machine Learning Arena Seminar
Thursday 4 May
Simon Bartels, Max Planck Institute for Intelligent Systems, Tübingen, Germany: Probabilistic Approximate Least-Squares
Location: ITC 2344, Time: 13:15

Abstract:

Algorithms for approximate least-squares tend not to return error bars on the elements of the inverse matrix itself (but only residuals on the linear problem being solved). Since least-squares problems are fundamental across virtually all areas of quantitative science, such uncertainty estimates have many interesting use cases, particularly if they can be provided at small or negligible cost overhead.

Leveraging recent results that cast elementary linear algebra operations as probabilistic inference, I will present a framework that uses varying prior regularity assumptions over the structure of the matrix to fit a Gaussian probability measure around the point estimates constructed by classic methods. The covariance of this measure then yields a notion of uncertainty, which can be used, for example, to control the computational effort invested in an approximation.

Disputation / Dissertation
19 May
Fredrik Hellman: Numerical Methods for Darcy Flow Problems with Rough and Uncertain Data
Location: ITC 2446, Time: 10:15

Fredrik Hellman will present and defend his PhD thesis. The opponent will be professor Robert Scheichl, Department of Mathematical Sciences, University of Bath. Professor Axel Målqvist, Professor Auli Niemi, and Docent Fritjof Fagerlund have been the advisors.

DiVA include abstract and full text

Gender Equality Group - Monthly Meeting
23 May
Location: ITC 1345, Time: 13:30-15:30

ON THE AGENDA:
APPLICATIONS

Gender Equality Group - Monthly Meeting
2017-08-30
Location: ITC 1345, Time: 13:30-15:30

ON THE AGENDA:
APPLICATIONS and Better PhD Student Education for all (section 4.3 in the action plan)

Gender Equality Group - Monthly Meeting
2017-10-25
Location: ITC 1345, Time: 13:30-15:30

ON THE AGENDA:
APPLICATIONS

Gender Equality Group - Monthly Meeting
2017-11-29
Location: ITC 1345, Time: 13:30-14:30

ON THE AGENDA:
Supporting women in post docs, associate senior lecturers or senior lecturers positions (section 4.4 in the action plan)

See also the list of all upcoming seminars.

Internal seminars. Lecturers may be either internal or external.

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