Speaker: |
Chien-Chung Huang (Chalmers University of Technology Department of Computer Science and Engineering SE-412 96 Gothenburg Sweden) |

Organiser: |
Umang Bhaskar |

Date: |
Tuesday, 15 Mar 2016, 16:00 to 17:00 |

Venue: |
A-201 (STCS Seminar Room) |

(Scan to add to calendar)

The core of our algorithms is a decomposition technique: we decompose an instance of the weighted matroid intersection problem into a set of instances of the unweighted matroid intersection problem. The computational advantage of this approach is that we can make use of fast unweighted matroid intersection algorithms as a black box for designing algorithms. Precisely speaking, we prove that we can solve the weighted matroid intersection problem via solving $W$ instances of the unweighted matroid intersection problem, where $W$ is the largest given weight. Furthermore, we can find a $(1-\epsilon)$-approximate solution via solving $O(\epsilon^{-1} \log r)$ instances of the unweighted matroid intersection problem, where $r$ is the smallest rank of the given two matroids.

Bio: Chien-Chung Huang is currently an assistant professor at Chalmers University of Technology in Sweden. He obtained his Ph.D. at Dartmouth College in 2008, under the supervision of Peter Winkler. He works in the area of algorithm design nd analysis. The major topics that he has worked on include stable matching, machine scheduling, and selfish routing games.