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STOC
1995
ACM
13 years 11 months ago
1995
ACM
We relate the sequence of minimum bases of a matroid with linearly varying weights to three problems from combinatorial geometry: k-sets, lower envelopes of line segments, and con...
CSR
2008
Springer
13 years 9 months ago
2008
Springer
Razborov and Rudich identified an imposing barrier that stands in the way of progress toward the goal of proving superpolynomial lower bounds on circuit size. Their work on "n...
FOSSACS
2008
Springer
13 years 9 months ago
2008
Springer
The problem of converting deterministic finite automata into (short) regular expressions is considered. It is known that the required expression size is 2(n) in the worst case for ...
EOR
2006
13 years 7 months ago
2006
We consider the problem of partitioning a set of positive integers values into a given number of subsets, each having an associated cardinality limit, so that the maximum sum of v...
JGAA
1998
13 years 7 months ago
1998
An orthogonal drawing of a graph is an embedding of the graph in the two-dimensional grid such that edges are routed along grid-lines. In this paper we explore lower bounds for or...