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What and Who
Title:Improved Pseudopolynomial Time Algorithms for Subset Sum
Speaker:Karl Bringmann
coming from:Max-Planck-Institut für Informatik - D1
Speakers Bio:
Event Type:AG1 Mittagsseminar (own work)
Visibility:D1, D2, D3, D4, D5, RG1, SWS, MMCI
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Level:AG Audience
Language:English
Date, Time and Location
Date:Thursday, 4 August 2016
Time:13:00
Duration:30 Minutes
Location:Saarbrücken
Building:E1 4
Room:024
Abstract
Given a set Z of n positive integers and a target value t, the SubsetSum problem asks whether any subset of Z sums to t. A textbook pseudopolynomial time algorithm by Bellman from 1957 solves SubsetSum in time O(nt). Here we present a simple and elegant randomized algorithm running in time soft-O(n+t). This improves upon a classic result and is likely to be near-optimal, since it matches conditional lower bounds from SetCover and k-Clique. We also present a new algorithm with pseudopolynomial time and polynomial space.
Contact
Name(s):Karl Bringmann
Video Broadcast
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Created by:Karl Bringmann, 07/27/2016 02:55 PMLast modified by:Uwe Brahm/MPII/DE, 11/24/2016 04:13 PM
  • Karl Bringmann, 07/27/2016 02:55 PM -- Created document.