Titlebook: Randomization and Approximation Techniques in Computer Science; Second International Michael Luby,José D. P. Rolim,Maria Serna Conference p

無(wú)意

Fringe analysis of synchronized parallel algorithms on 2–3 treesener (PVW). This algorithm inserts keys into a tree of size . with parallel time .(log . + log .)..Fringe analysis studies the distribution of the bottom subtrees and it is still an open problem for parallel algorithms on search trees. To tackle this problem we introduce a new kind of algorithms who

relieve

On Balls and Bins with Deletionscover deletions. In particular, we are interested in the case where the system maintains a fixed load, and deletions are determined by an adversary before the process begins. We show that with high probability the load in any bin is O(log log .). In fact, this result follows from recent work by Cole

乳汁

“Balls into Bins” — A Simple and Tight Analysisderive sharp upper and lower bounds which are reached with high probability. We prove bounds for all values of . ≧ ./polylog(.) by using the simple and well-known method of the first and second moment.

SOB

Tornado Codes: Practical Erasure Codes Based on Random Irregular Graphso transmit over lossy channels at rates extremely close to capacity. The encoding and decoding algorithms for Tornado codes are both simple and faster by orders of magnitude than the best software implementations of standard erasure codes. We expect Tornado codes will be extremely useful for applica

anthesis

WATER

Complexity of Sequential Pattern Matching Algorithms it was known that the complexity of such algorithms is bounded by a linear function of the text length. Recently, substantial progress has been made in identifying lower bounds. We now prove there exists asymptotically a . for the worst and the average cases. We use . Theorem and prove an almost su

心痛

Ptsd429

Almost Optimal (on the average) Combinatorial Algorithms for Boolean Matrix Product Witnesses, Compu (ii) finding witnesses for boolean matrix multiplication and (iii) computing the diameter and all-pairs-shortest-paths of a given (unweighted) graph/digraph. For each of these problems, we assume that the input instances are drawn from suitable distributions. A random boolean matrix (graph/digraph)

affluent

Randomized Lower Bounds for Online Path Coloringithms perform substantially better than deterministic algorithms is known until now. We present randomized lower bounds for online coloring of some well studied network topologies..We show that no randomized algorithm for online coloring of interval graphs achieves a competitive ratio strictly bette

conjunctivitis