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AIPS
2011
13 years 3 months ago
Where Ignoring Delete Lists Works, Part II: Causal Graphs
The ignoring delete lists relaxation is of paramount importance for both satisficing and optimal planning. In earlier work (Hoffmann 2005), it was observed that the optimal relax...
Joerg Hoffmann
AI
2011
Springer
13 years 3 months ago
Finding Small Backdoors in SAT Instances
Although propositional satisfiability (SAT) is NP-complete, state-of-the-art SAT solvers are able to solve large, practical instances. The concept of backdoors has been introduced...
Zijie Li, Peter van Beek
RTAS
2011
IEEE
13 years 3 months ago
FPZL Schedulability Analysis
— This paper presents the Fixed Priority until Zero Laxity (FPZL) scheduling algorithm for multiprocessor realtime systems. FPZL is similar to global fixed priority preemptive sc...
Robert I. Davis, Alan Burns
TMM
2010
151views Management» more  TMM 2010»
13 years 6 months ago
SPANC: Optimizing Scheduling Delay for Peer-to-Peer Live Streaming
Abstract--In peer-to-peer (P2P) live streaming using unstructured mesh, packet scheduling is an important factor in overall playback delay. In this paper, we propose a scheduling a...
Tammy Kam-Hung Chan, Shueng-Han Gary Chan, Ali C. ...
SIAMDM
2010
99views more  SIAMDM 2010»
13 years 6 months ago
On the Stable Paths Problem
The Border Gateway Protocol (BGP) is the interdomain routing protocol used to exchange routing information between Autonomous Systems (ASes) in the internet today. While intradoma...
Penny E. Haxell, Gordon T. Wilfong
IWOCA
2010
Springer
223views Algorithms» more  IWOCA 2010»
13 years 7 months ago
Parameterized Algorithms for the Independent Set Problem in Some Hereditary Graph Classes
The maximum independent set problem is NP-complete for graphs in general, but becomes solvable in polynomial time when restricted to graphs in many special classes. The problem is ...
Konrad Dabrowski, Vadim V. Lozin, Haiko Mülle...
IJNSEC
2010
73views more  IJNSEC 2010»
13 years 7 months ago
Provable Partial Key Escrow
In this paper we first propose two new concepts concerning the notion of key escrow schemes: provable partiality and independence. Roughly speaking, a scheme has provable partiali...
Kooshiar Azimian, Javad Mohajeri, Mahmoud Salmasiz...
CORR
2010
Springer
163views Education» more  CORR 2010»
13 years 8 months ago
NP-hardness of Deciding Convexity of Quartic Polynomials and Related Problems
We show that unless P=NP, there exists no polynomial time (or even pseudo-polynomial time) algorithm that can decide whether a multivariate polynomial of degree four (or higher ev...
Amir Ali Ahmadi, Alexander Olshevsky, Pablo A. Par...
ECCV
2010
Springer
13 years 9 months ago
An Efficient Graph Cut Algorithm for Computer Vision Problems
Abstract. Graph cuts has emerged as a preferred method to solve a class of energy minimization problems in computer vision. It has been shown that graph cut algorithms designed kee...
Chetan Arora, Subhashis Banerjee, Prem Kalra, S. N...
CORR
2010
Springer
136views Education» more  CORR 2010»
13 years 9 months ago
Schaefer's theorem for graphs
Schaefer's theorem is a complexity classification result for so-called Boolean constraint satisfaction problems: it states that every Boolean constraint satisfaction problem ...
Manuel Bodirsky, Michael Pinsker