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November 2018

Pure mathematics colloquium - Justin Ward (QMUL)4:00 pm - 5:00 pm Mathematical InstituteThursday 1 November 2018

Event type: AcademicAudience: Staff and students
This event has been created by: Louis Theran lst6@st-andrews.ac.uk

Event Details

Where: Maths Institute Lecture Theatre D

Speaker: Justin Ward, Queen Mary University of London

Title: Distributed submodular maximization on massive datasets

A wide variety of optimization problems at the heart of machine learning, economics, and operations research can be cast as constrained submodular maximization problems. Unfortunately, in many emerging applications, the resulting submodular optimization problems are too large to be solved (or even stored) on a single machine. In this talk, Justin Ward will describe a new framework for distributed submodular maximization. The framework is easily stated in the popular MapReduce model of computation, and provides a general condition under which centralised algorithms can be transformed into distributed algorithms with almost no loss in the approximation guarantee. This talk is based on joint work with Rafael da Pont Barbosa, Alina Ene, and Huy Nguyen.

This talk is part of the pure mathematics colloquium at the University of St Andrews. Check out upcoming talks.

Time

(Thursday) 4:00 pm - 5:00 pm

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