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Electronic Colloquium on Computational Complexity

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TR10-095 | 11th June 2010
Masaki Yamamoto

A combinatorial analysis for the critical clause tree

In [FOCS1998],
Paturi, Pudl\'ak, Saks, and Zane proposed a simple randomized algorithm
for finding a satisfying assignment of a $k$-CNF formula.
The main lemma of the paper is as follows:
Given a satisfiable $k$-CNF formula that
has a $d$-isolated satisfying assignment $z$,
the randomized algorithm finds $z$
with probability at ... more >>>


TR10-094 | 17th May 2010
Ajesh Babu, Nutan Limaye, Girish Varma

Streaming algorithms for some problems in log-space.

In this paper, we give streaming algorithms for some problems which are known to be in deterministic log-space, when the number of passes made on the input is unbounded. If the input data is massive,
the conventional deterministic log-space algorithms may not run efficiently. We study the complexity of the ... more >>>


TR10-093 | 3rd June 2010
Sourav Chakraborty, David GarcĂ­a Soriano, Arie Matsliah

Nearly Tight Bounds for Testing Function Isomorphism

In this paper we study the problem of testing structural equivalence (isomorphism) between a pair of Boolean
functions $f,g:\zo^n \to \zo$. Our main focus is on the most studied case, where one of the functions is given (explicitly), and the other function can be queried.

We prove that for every ... more >>>



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