First place

Team MaGeZ

£500

Matthias Ehrhardt (Bath)

Georg Schramm (Leuven)

Zeljko Kereta (UCL)

Approaches:

Improved versions of SVRG

• ALG1: Preconditioning
• ALG2: ALG1 + step sizes (Barzelai-Borwein)
• ALG3: ALG2 + subset selection

Tied second place

Team EWS

£300

Imraj Singh (UCL)

Alexander Denker (UCL)

Approaches:

Various algorithms with better steps, precondition and neural network based warm-starts

• GD
• SGD
• SAGA

Tied second place

Team SOS

£300

Sam Porter (UCL)

Margaret Duff (STFC)

Edoardo Pasca (STFC)

Approaches:

• Improved version of SVRG, EM preconditioner with Armijo line search
• Improved version of SAGA, EM preconditioner with Armijo line search