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ICALP
2009
Springer
11 years 4 months ago
SDP-Based Algorithms for Maximum Independent Set Problems on Hypergraphs
Abstract. This paper deals with approximations of maximum independent sets in non-uniform hypergraphs of low degree. We obtain the first performance ratio that is sublinear in term...
Elena Losievskaja, Geir Agnarsson, Magnús M...
ICALP
2009
Springer
11 years 4 months ago
Universal Succinct Representations of Trees?
Abstract. We consider the succinct representation of ordinal and cardinal trees on the RAM with logarithmic word size. Given a tree T, our representations support the following ope...
Arash Farzan, Rajeev Raman, S. Srinivasa Rao
ICALP
2009
Springer
11 years 4 months ago
High Complexity Tilings with Sparse Errors
Abstract. Tile sets and tilings of the plane appear in many topics ranging from logic (the Entscheidungsproblem) to physics (quasicrystals). The idea is to enforce some global prop...
Bruno Durand, Andrei E. Romashchenko, Alexander Sh...
ICALP
2009
Springer
11 years 4 months ago
Sorting and Selection with Imprecise Comparisons
Abstract. In experimental psychology, the method of paired comparisons was proposed as a means for ranking preferences amongst n elements of a human subject. The method requires pe...
Avinatan Hassidim, Jelani Nelson, Miklós Aj...
ICALP
2009
Springer
11 years 4 months ago
Incompressibility through Colors and IDs
Michael Dom, Daniel Lokshtanov, Saket Saurabh
ICALP
2009
Springer
11 years 4 months ago
The Tile Complexity of Linear Assemblies
Harish Chandran, Nikhil Gopalkrishnan, John H. Rei...
ICALP
2009
Springer
11 years 4 months ago
The Number of Symbol Comparisons in QuickSort and QuickSelect
Abstract We revisit the classical QuickSort and QuickSelect algorithms, under a complexity model that fully takes into account the elementary comparisons between symbols composing ...
Brigitte Vallée, James Allen Fill, Julien C...
ICALP
2009
Springer
11 years 4 months ago
Elimination Graphs
A graph is chordal if it does not contain any induced cycle of size greater than three. An alternative characterization of chordal graphs is via a perfect elimination ordering, whi...
Yuli Ye, Allan Borodin
ICALP
2009
Springer
11 years 4 months ago
Tight Bounds for the Cover Time of Multiple Random Walks
We study the cover time of multiple random walks. Given a graph G of n vertices, assume that k independent random walks start from the same vertex. The parameter of interest is the...
Robert Elsässer, Thomas Sauerwald
ICALP
2009
Springer
11 years 4 months ago
On Cartesian Trees and Range Minimum Queries
We present new results on Cartesian trees with applications in range minimum queries and bottleneck edge queries. We introduce a cache-oblivious Cartesian tree for solving the ran...
Erik D. Demaine, Gad M. Landau, Oren Weimann
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