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» Hardness Results and Efficient Algorithms for Graph Powers
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DAC
2005
ACM
15 years 10 months ago
Optimal procrastinating voltage scheduling for hard real-time systems
This paper presents an optimal procrastinating voltage scheduling (OP-DVS) for hard real-time systems using stochastic workload information. Algorithms are presented for both sing...
Yan Zhang, Zhijian Lu, John Lach, Kevin Skadron, M...
SWAT
2004
Springer
98views Algorithms» more  SWAT 2004»
15 years 3 months ago
Tight Approximability Results for Test Set Problems in Bioinformatics
In this paper, we investigate the test set problem and its variations that appear in a variety of applications. In general, we are given a universe of objects to be “distinguish...
Piotr Berman, Bhaskar DasGupta, Ming-Yang Kao
ECCC
2006
88views more  ECCC 2006»
14 years 9 months ago
Hardness of Directed Routing with Congestion
Given a graph G and a collection of source-sink pairs in G, what is the least integer c such that each source can be connected by a path to its sink, with at most c paths going th...
Julia Chuzhoy, Sanjeev Khanna
SIGMOD
2009
ACM
133views Database» more  SIGMOD 2009»
15 years 10 months ago
Hierarchical result views for keyword queries over relational databases
Enabling keyword queries over relational databases (KQDB) benefits a large population of users who have difficulty in understanding the database schema or using SQLs. However, sin...
Shiyuan Wang, Jun'ichi Tatemura, Arsany Sawires, O...
COCO
2010
Springer
168views Algorithms» more  COCO 2010»
14 years 10 months ago
A New Sampling Protocol and Applications to Basing Cryptographic Primitives on the Hardness of NP
We investigate the question of what languages can be decided efficiently with the help of a recursive collisionfinding oracle. Such an oracle can be used to break collisionresistan...
Iftach Haitner, Mohammad Mahmoody, David Xiao