APEX 2012

International Workshop on Approximation, Parameterized and EXact algorithms

February 28-29, 2012, Paris, France

apex 2012

The APEX (Approximation, Parameterized and EXact algorithms) workshop is supported by the French National Agency for Research (ANR) under the TODO (Time versus Optimality in Discrete Optimization) ANR project. It aims to bring together researchers working on the design and analysis of algorithms (exact, moderately exponential, approximation and low memory,...) for combinatorial optimization problems.

APEX is co-located with STACS 2012 in Paris.

Papers are solicited in all areas of approximation and exact algorithms, including but not limited to:

important dates

Submissions deadline: December 7, 2011 December 14, 2011, 23:59 (GMT)
Notification of authors: December 21, 2011
Conference: February 28-29, 2012

invited speakers
Program committee
Organizing committee
submission guidelines

Abstracts of 2-3 pages must be submitted using a pdf format.

APEX submissions undergo a selection process based on a light refereeing by the PC. APEX will not publish proceedings. Hence, presenting your paper at APEX will not prevent you from submitting it to journals or to other conferences. Similarly, it is acceptable to submit a paper that was presented at an earlier conference. Submissions by PC members are allowed.

Talks will have around 20 minutes.

Papers must be submitted electronically at Easychair.

The submission must be received by 23:59 (GMT) on December 7, 2011.

accepted papers
program

To download the program in pdf format, click here.


Tuesday, February 28, 2012
9h00-9h30 Welcome
9h30-10h30 Invited talk: Henning Fernau
Definitions, motivations, techniques and limitations of parameterized approximation

10h30-10h45 Coffee break

10h45-11h15 A. Langer, F. Reidl, P. Rossmanith and S. Sikdar
Linear Kernels on Graphs Excluding Topological Minors
11h15-11h45 P. Golovach, M. Kaminski, D. Paulusma and D. Thilikos
Increasing the Minimum Degree of a Graph by Contractions
11h45-12h15 A. Perez and S. Bessy
A quartic kernel for Proper Interval Completion

12h15-14h30 Lunch

14h30-15h30 Invited talk: Martin Skutella
Unsplittable and k-splittable flows in single-source networks

15h30-15h45 Coffee break

15h45-16h15 S. Mengel and A. Durand
The Complexity of Weighted Counting for Acyclic Conjunctive Queries
16h15-16h45 R. Watrigant, M. Bougeret, R. Giroudeau and J.-C. König
On the approximability of the Sum-Max graph partitioning problem

16h45-17h00 Coffee break

17h00-17h30 Ch. Lenté, M. Liedloff, A. Soukhal and V. T'Kindt
Scheduling parallel machines with exponential algorithms
17h30-18h00 R. Crowston, M. Jones and M. Mnich
Max-Cut Parameterized Above the Edwards-Erdös Bound
Wednesday, February 29, 2012
9h30-10h00 K. Jansen
A (3/2+\epsilon) approximation algorithm for scheduling malleable and non-malleable parallel tasks
10h00-10h30 T. Dokka, A. Kouvela and F. Spieksma
Approximating the multi-level bottleneck assignment problem

10h30-10h45 Coffee break

10h45-11h15 M. Chapelle
Domination-like problems parameterized by tree-width
11h15-11h45 E.-J. Kim and D. Goncalves
On Exact Algorithms for Permutation CSP
11h45-12h15 K. Meeks and A. Scott
The parameterised complexity of list problems on graphs of bounded treewidth
location

The conference will take place at the site "Les cordeliers" of the University Pierre et Marie Curie.
The address is Campus des Cordelier, 21, rue de l'école de médecine, 75006 Paris, Métro Odéon.

practical information

For information about accomodation, child care and restaurants see in the STACS 2012 website.

participants