Dagstuhl Seminar 01231

Design and Analysis of Randomized and Approximation Algorithms

Dagstuhl, June 6-8, 2001

M. Dyer (Leeds), M. Jerrum (Edinburgh), M. Karpinski (Bonn)



Monday, June 4th, 2001


09:00 - 09:10 Opening
Chair: Marek Karpinski
09:10 - 09:55 Sanjeev Khanna (PennUniv.)
Algorithms for Minimizing Weighted Flow Time
09:55 - 10:25 Alan Frieze (CMU)
Edge Disjoint Paths in Expander Diagraphs
10:25 - 11:00 Coffee break
Chair: Martin Dyer
11:00 - 11:30 Gregory Sorkin (IBM)
Optimal Myoptic Algorithms for Random 3SAT
11:30 - 12:00 Graham Brightwell (London)
Connectivity among H-colorings
12:15 Lunch break
Chair: Mark Jerrum
15:00 - 15:30 Claire Kenyon (Paris-Sud)
Coalescing Particles on a Tree
15:30 - 16:00 Michael Langberg (Weizmann Institute)
The RPR2 Rounding Technique for Semidefinite Programs
16:00 - 16:30 Coffee break
Chair: Alan Frieze
16:30 - 17:00 Malwina Luczak (Oxford)
Routing Random Calls on Graphs
17:00 - 17:30 Dana Randall (Georgia Tech)
Decomposition Swapping + Mean Field Models
18:00 Dinner


Tuesday, June 5th, 2001


Chair: Ravi Kannan
09:00 - 09:30 Marek Karpinski (Bonn)
Approximability of Dense Nearest Codeword Problem
09:30 - 10:00 Mark Jerrum (Edinburgh)
A Polynomial-Time Approximation Algorithms for the
Permanent of a Matrix with Non-Negative Entries, Part I
10:00 - 10:30 Eric Vigoda (Edinburgh)
A Polynomial-Time Approximation Algorithms for the
Permanent of a Matrix with Non-Negative Entries, Part II
10:30 - 11:00 Coffee break
Chair: Sanjeev Khanna
11:00 - 11:30 Piotr Berman (Bonn)
Approximation Hardness of Bounded Degree MIN-CSP and MIN-BISECTION
11:30 - 12:00 Alex D. Scott (London)
Judicious Partitions of Graphs and Hypergraphs
12:15 Lunch break
Chair: Sanjeev Arora
15:00 - 15:30 W. Fernandez de la Vega (Paris-Sud)
Sampling k-Uniform Hypergraphs and Design of PTASs
for Dense Instances of Min-CSP
15:30 - 16:00 Jennifer Chayes (Microsoft)
The Phase Transition in the Random Partition Problem
16:00 - 16:30 Coffee break
Chair: Alexander Barvinok
16:30 - 17:00 Angelika Steger (München)
A New Performance Measure for Stochastic Scheduling
17:00 - 17:30 Christian Borgs (Microsoft)
Slow Mixing for H-Colorings of the Hypercubic Lattice
18:00 Dinner


Wednesday, June 6th, 2001


Chair: Jennifer Chayes
09:00 - 09:30 Eli Upfal (Brown)
Can Entropy Predict On-Line Performance?
09:30 - 10:00 M. Karonski (Poznan)
Distributed Graph Coloring Algorithms
10:00 - 10:30 Miklos Santha (Paris-Sud)
Quantum Algorithms for Some Instances of the Hidden Subgroup Problem
10:30 - 11:00 Coffee break
Chair: W. Fernandez de la Vega
11:00 - 11:30 Klaus Jansen (Kiel)
Polynomial-time Approximation Schemes for Preemptive Resource
Constrained Scheduling and Fractional Graph Coloring
11:30 - 12:00 Catherine Greenhill (Melbourne)
Connectedness of Bounded Degree Star Processes
12:15 Lunch break
13:30 - 17:30 Excursion
18:00 Dinner
20:00 Evening Session
Chair: Alexander Barvinok


Thursday, June 7th, 2001


Chair: Claire Kenyon
09:00 - 09:30 Sanjeev Arora (Princeton)
On On-Line Algorithms for Bandwidth Utilization
09:30 - 10:00 Alexander Barvinok (Michigan)
Metric Geometry of Counting
10:00 - 11:00 Coffee break
Chair: Michael Paterson
11:00 - 11:45 Ravi Kannan (Yale)
What Can You Do in One or Two Passes
11:45 - 12:15 Colin Cooper (London)
Random Graphs Which Model the Internet
12:15 Lunch break
Chair: Eli Upfal
15:00 - 15:30 David B. Wilson (Microsoft)
Perfect Simulation for Quenchal Disordered Systems
15:30 - 16:00 Petra Berenbrink (Warwick)
The Natural Work Stealing Algorithm is Stable
16:00 - 16:30 Coffee break
Chair: Gerhard Woeginger
16:30 - 17:00 Artur Czumaj (NJIT)
On Certain Property Testing Algorithms
17:00 - 17:30 Thomas Jansen (Dortmund)
On the Analysis of Evolutionary Algorithms
18:00 Dinner


Friday, June 8th, 2001


Chair: Graham R.Brightwell
09:00 - 09:30 Jung-Bae Son (Edinburgh)
Average Conductance and Log-Sobolev Constant of Balanced Matroids
09:30 - 10:00 Piotr Krysta (MPI Saarbrücken)
Approximating Minimum Size 2-Connectivity Problems Using Local Search
10:00 - 10:30 Lars Engebretsen (MIT)
Approximation Hardness of Traveling Salesman Problem with Bounded Metric

End of Workshop

10:30 - 11:00 Coffee
12:15 Lunch