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Communications of the ACM

Research Archive


Archives

The Research archive provides access to all Research articles published in past issues of Communications of the ACM.

December 2010


From Communications of the ACM

Technical Perspective: QIP = PSPACE Breakthrough

It is now clear that for a wide range of problems, quantum computers offer little or no advantage over their classical counterparts.


From Communications of the ACM

Technical Perspective: Iterative Signal Recovery From Incomplete Samples

You are given a large set of data values, and you are requested to compress, clean, recover, recognize, and/or predict it. Sounds familiar? This is the…


From Communications of the ACM

QIP = PSPACE

QIP = PSPACE

The collection of computational problems having quantum interactive proof systems consists precisely of those problems solvable with an ordinary classical computer using at most a polynomial amount of memory (or QIP = PSPACE…


From Communications of the ACM

CoSaMP: Iterative Signal Recovery From Incomplete and Inaccurate Samples

CoSaMP: Iterative Signal Recovery From Incomplete and Inaccurate Samples

Compressive sampling (CoSa) is a new paradigm for developing data sampling technologies. The main computational challenge in CoSa is to reconstruct a compressible signal from the reduced representation acquired by the sampling…