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» New Lower Bounds for Heilbronn Numbers
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PODS
2004
ACM
137views Database» more  PODS 2004»
14 years 7 months ago
On the Memory Requirements of XPath Evaluation over XML Streams
The important challenge of evaluating XPath queries over XML streams has sparked much interest in the past few years. A number of algorithms have been proposed, supporting wider f...
Ziv Bar-Yossef, Marcus Fontoura, Vanja Josifovski
GLVLSI
2000
IEEE
116views VLSI» more  GLVLSI 2000»
14 years 13 hour ago
Reducing bus transition activity by limited weight coding with codeword slimming
Transitions on high capacitance busses in VLSI systems result in considerable power dissipation. Various coding schemes have been proposed in literature to encode the input signal...
Vijay Sundararajan, Keshab K. Parhi
CORR
2010
Springer
179views Education» more  CORR 2010»
13 years 5 months ago
The DMM bound: multivariate (aggregate) separation bounds
In this paper we derive aggregate separation bounds, named after Davenport-MahlerMignotte (DMM), on the isolated roots of polynomial systems, specifically on the minimum distance ...
Ioannis Z. Emiris, Bernard Mourrain, Elias P. Tsig...
WAOA
2007
Springer
170views Algorithms» more  WAOA 2007»
14 years 1 months ago
A 5/3-Approximation for Finding Spanning Trees with Many Leaves in Cubic Graphs
For a connected graph G, let L(G) denote the maximum number of leaves in a spanning tree in G. The problem of computing L(G) is known to be NP-hard even for cubic graphs. We improv...
José R. Correa, Cristina G. Fernandes, Mart...
AAAI
2010
13 years 9 months ago
New Mini-Bucket Partitioning Heuristics for Bounding the Probability of Evidence
Mini-Bucket Elimination (MBE) is a well-known approximation algorithm deriving lower and upper bounds on quantities of interest over graphical models. It relies on a procedure tha...
Emma Rollon, Rina Dechter