VA & Opt Webinar: Janosch Rieger

Title: Generalized Gearhart-Koshy acceleration for the Kaczmarz method

Speaker: Janosch Rieger (Monash University)

Date and Time: Wed Mar 16 2022, 17:00 AEST (Register here for remote connection via Zoom)

Abstract:

The Kaczmarz method is an iterative numerical method for solving large and sparse rectangular systems of linear equations. Gearhart and Koshy have developed an acceleration technique for the Kaczmarz method for homogeneous linear systems that minimises the distance to the desired solution in the direction of a full Kaczmarz step. Matthew Tam has recently generalised this acceleration technique to inhomogeneous linear systems.

In this talk, I will develop this technique into an acceleration scheme that minimises the Euclidean norm error over an affine subspace spanned by a number of previous iterates and one additional cycle of the Kaczmarz method. The key challenge is to find a formulation in which all parameters of the least-squares problem defining the unique minimizer are known, and to solve this problem efficiently.

Seminars

AMSI ACE Optimisation Course: Theory and Methods of Modern Optimisation

The 2022 AMSI ACE network Optimisation course will launch on February 28, 2022. This year’s theme is “Theory and Methods of Modern Optimisation,” and the instructors are Prof. Andrew Eberhard (RMIT University) and Dr. Scott B. Lindstrom (Curtin Centre for Optimisation and Decision Science). Details and pre-enrolment quiz are currently available on the AMSI website. Please share with any students who might benefit from this opportunity.

Uncategorized

Quoc Thong Le Gia,  as co-chair (computational)

Dear MoCaO members.  The computational  chair, Stephen Roberts has decided to step down from the position of co-chair (computation) due to personal circumstances. The executive of MoCaO has unanimously agreed to appoint the runner up for the co-chair (computation) position in the  2020-2021 executive elections,  Quoc Thong Le Gia,  as co-chair (computational) to fill this position for the remainder of this executives term. We thank Thong for agreeing to take on this important role.

Congratulations, Thong!

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MathsFeed Blog

MathsFeed.blog is a blog aimed at maths students studying in Australia. It provides students with interesting articles regarding various mathematical concepts and some captivating applications as well as general mathematical news, findings, resources, and opportunities. Readers can also subscribe for free.

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Positions: RMIT’s School of Science. Applications close on Wednesday, 16th of February 2022

  • RMIT’s School of Science: contribute to the teaching and research growth within the Mathematical Sciences Discipline, in the School of Science and specifically within the fields of statistics and analytics.
  • 1 x Full time, ongoing appointment based in the City campus
  • Applications close on Wednesday, 16th of February 2022

About the Role

As a Statistics and Analytics Lecturer/Senior Lecturer, you will contribute to the School’s research efforts by producing high quality research publications, submitting competitive grant applications, and supervising research students in postgraduate research programs. In this role, you will maintain and advance your scholarly research and professional capabilities relevant to this discipline and actively promote the discipline by establishing and sustaining links with academic, industry, and professional communities. The expected roles the applicant could engage in are broad in scope, but we encourage applicants to apply if they have an interested further developing and\or have research experience within the areas of machine learning and\or data mining.

For more information, go to RMIT External website

news, positions
Sofia Kovalevskaya

Kovalevskaya grants for Early Career Researchers to attend the upcoming the International Congress of Mathematicians (ICM) in Saint Petersburg

The Australian Mathematical Society is calling for applications to the Kovalevskaya grants scheme.


Kovalevskaya grants are aimed at early career mathematicians to support their attendance at the International Congress of Mathematicians, to be held in Saint Petersburg on 6-14 July, 2022.


Upon submission of receipts, each successful applicant will receive an amount of $1,500, to be used towards travel to and from Saint Petersburg. Additionally, the local organisers will waive registration fees, provide meals and accommodation in Saint-Petersburg for the duration of the congress, cover local transportation costs, and arrange for visa-free entrance into Russia.

For more information please refer to this file

events, news

PhD Scholarship at UniSA

Applications close 17th January.

A recent Australian Renewable Energy Agency funded project on improving the short-term forecasting capability for solar farms found that the economic benefit of the forecasting was independent of the forecast skill. This motivates research into exactly what is the value proposition for solar and wind farm forecasting, and how does one design the process for maximising value. You will be part of an international team examining this topic. This project will provide you with international and national research and industry contacts, an expert knowledge of electricity markets, and invaluable industrial mathematics skills. The team is led by Professor John Boland of UniSA, and includes Dr Merlinde Kay of UNSW, and Professors Philippe Lauret and Mathieu Davide of Universite de La Reunion, France.

For more information:

https://www.unisa.edu.au/research/degrees/research-projects/#value-of-renewable-energy-forecasts

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