The probabilistic method yields deterministic parallel algorithms
نویسندگان
چکیده
منابع مشابه
The Probabilistic Method Yields Deterministic Parallel Algorithms
We present a technique for converting RNC algorithms into NC algorithms. Our approach is based on a parallel implementation of the method of conditional probabilities. This method was used to convert probabilistic proofs of existence of combinatorial structures into polynomial time deterministic algorithms. It has the apparent drawback of being extremely sequential in nature. We show certain ge...
متن کاملParallel Algorithms via the Probabilistic Method
Christian-Albrechts Universitat zu Kiel 1.
متن کاملDeterministic Amplification of Space-Bounded Probabilistic Algorithms
This paper initiates the study of deterministic amplification of space-bounded probabilistic algorithms. The straightforward implementations of known amplification methods cannot be used for such algorithms, since they consume too much space. We present a new implementation of the Ajtai-Komlós-Szemerédi method, that enables to amplify an S-space algorithm that uses r random bits and errs with p...
متن کاملDo Probabilistic Algorithms Outperform Deterministic Ones?
The introduction of randomization into efficient computation has been one of the most fertile and usefifl ide,'~q in computer science. In cryl)tography and ,~synchronous comlmting, randomization makes possil)le t.asks that are iml)ossilfle to l)erform detcrnfinistically. For fimction coml)utation , many examples are known in which randomization allows considerable savings in resources like spac...
متن کاملDeterministic parallel algorithms for bilinear objective functions
Many randomized algorithms can be derandomized efficiently using either the method of conditional expectations or probability spaces with low independence. A series of papers, beginning with work by Luby (1988), showed that in many cases these techniques can be combined to give deterministic parallel (NC) algorithms for a variety of combinatorial optimization problems, with low time- and proces...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Computer and System Sciences
سال: 1994
ISSN: 0022-0000
DOI: 10.1016/s0022-0000(05)80069-8