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Variational Analysis and Optimisation Seminar, 4 November

Variational Analysis and Optimisation Seminar, 4 November

Start Date

November 4, 2020

End Date

November 4, 2020

Registration

Closed

Time: November 4th, 2020 at 05:00 PM AEDT

Variational Analysis and Optimisation Seminar
Dear colleagues,
The next talk in the Variational Analysis and Optimisation Webinar series will be given by Chayne Planiden on November 4th, 2020, 05:00 PM AEST. Here are the details:
17:00 AEDT = 14:00 in China (CST) = 13:00 in Vietnam (ICT) = 08:00 in Israel (IST) = 7:00 in most of Europe (CET).
Join Zoom Meeting: https://us02web.zoom.us/j/81069789034?pwd=M1dJekJRNEZrc1VPNHA4RmNGTVVDdz09
Password: 437959
Meeting ID: 810 6978 9034
Speaker:  Chayne Planiden (Univ. Wollongong)
Talk: New Gradient and Hessian Approximation Methods for Derivative-free Optimisation
Abstract: In general, derivative-free optimisation (DFO) uses approximations of first- and second-order information in minimisation algorithms. DFO is found in direct-search, model-based, trust-region and other mainstream optimisation techniques and is gaining popularity in recent years. This work discusses previous results on some particular uses of DFO: the proximal bundle method and the VU-algorithm, and then presents improvements made this year on the gradient and Hessian approximation techniques. These improvements can be inserted into any routine that requires such estimations.
Please forward this information to anyone you think could be interested in this seminar series.
Best regards,
Hoa Bui (Curtin), Minh Dao (Federation Univ.), Alex Kruger (Federation Univ.), Guoyin Li (Univ. NSW), Vera Roshchina (Univ. NSW), Matthew Tam (Univ. Melbourne)