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Computing All Faces of the Minkowski Sum of V-Polytopes

Publications associées (77)

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Data Exchange Problem with Helpers

Michael Christoph Gastpar, Sameer Pawar

In this paper we construct a deterministic polyno- mial time algorithm for the problem where a set of users is interested in gaining access to a common file, but where each has only partial knowledge of the file. We further assume the existence of another ...

2012

Quasi-polynomial Local Search for Restricted Max-Min Fair Allocation

Ola Nils Anders Svensson, Lukas Polacek

The restricted max-min fair allocation problem (also known as the restricted Santa Claus problem) is one of few problems that enjoys the intriguing status of having a better estimation algorithm than approximation algorithm. Indeed, Asadpour et al. [1] pro ...

Springer2012

The RADO approach to Quality-Driven Service Composition - Approximating the Pareto-Frontier in Polynomial Time

Boi Faltings, Immanuel Trummer

In Quality-Driven Service Composition, tasks from an ab- stract work ow are assigned to concrete services such that work ow QoS are optimized. The following three proper- ties are desirable for a corresponding algorithm. First, the run time is ideally boun ...

2012

Scaladoc Diagrams for Class Hierarchies

Damien Obrist

On numerous occasions it has been pointed out that the class hierarchy of the Scala standard library is hard to follow. This project aims at addressing the problem by automatically generating interactive class hierarchy diagrams in the scaladoc tool. ...

2012

Santa Claus schedules jobs on unrelated machines

Ola Nils Anders Svensson

One of the classic results in scheduling theory is the 2-approximation algorithm by Lenstra, Shmoys, and Tardos for the problem of scheduling jobs to minimize makespan on unrelated machines, i.e., job j requires time p ij if processed on machine i. More th ...

ACM2011

Complexity of the critical node problem over trees

Marco Di Summa

In this paper we deal with the critical node problem (CNP), i.e., the problem of searching for a given number K of nodes in a graph G, whose removal minimizes the (weighted or unweighted) number of connections between pairs of nodes in the residual graph. ...

2011

Covering Cubes and the Closest Vector Problem

Friedrich Eisenbrand, Martin Niemeier, Nicolai Hähnle

We provide the currently fastest randomized (1+epsilon)-approximation algorithm for the closest vector problem in the infinity-norm. The running time of our method depends on the dimension n and the approximation guarantee epsilon by 2^(O(n))(log(1/epsilon ...

Acm Order Department, P O Box 64145, Baltimore, Md 21264 Usa2011

Deterministic algorithm for the cooperative data exchange problem

Michael Christoph Gastpar, Sameer Pawar

Download Citation Email Print Request Permissions Save to Project In this paper we study the problem of data exchange, where each node in the system has a number of linear combinations of the data packets. Communicating over a public channel, the goal is f ...

IEEE2011

The interval constrained 3-coloring problem

Laura Sanità

In this paper, we settle the open complexity status of interval constrained coloring with a fixed number of colors. We prove that the problem is already NP-complete if the number of different colors is 3. Previously, it has only been known that it is NP-co ...

Springer Verlag2010

Nonholonomic source seeking in switching random fields

Mahmut Selman Sakar

We consider the problem of designing controllers for nonholonomic mobile robots converging to the source (minimum) of a field. In addition to the mobility constraints posed by the nonholonomic dynamics, we assume that the field is completely unknown to the ...

2010