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|Author||Felipe Cucker and Peter Bürgisser and Pierre Lairez|
|Journal||Journal of the Association for Computing Machinery|
|Abstract||We describe and analyze an algorithm for computing the homology (Betti numbers and torsion coefficients) of basic semialgebraic sets which works in weak exponential time. That is, out of a set of exponentially small measure in the space of data the cost of the algorithm is exponential in the size of the data. All algorithms previously proposed for this problem have a complexity which is doubly exponential (and this is so for almost all data).|
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