A Lower Bound for the Shortest Path Problem
نویسندگان
چکیده
منابع مشابه
A Lower Bound for the Shortest Path Problem
We show that the shortest path problem cannot be solved in o(log n) time on an unbounded fan-in PRAM without bit operations using poly(n) processors, even when the bit-lengths of the weights on the edges are restricted to be of size O(log n). This shows that the matrix-based repeated squaring algorithm for the shortest path problem is optimal in the unbounded fan-in PRAM model without bit opera...
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ژورنال
عنوان ژورنال: Journal of Computer and System Sciences
سال: 2001
ISSN: 0022-0000
DOI: 10.1006/jcss.2001.1766