Is the PSA test useless?
نویسندگان
چکیده
منابع مشابه
Parity is Positively Useless
We give the first examples of non-trivially positively-useless predicates subject only to P 6= NP. In particular, for every constraint function Q : {−1, 1}4 → R, we construct Contraint-SatisfactionProblem (CSP) instances without negations which have value at least 1 − ε when evaluted for the arity-four odd-parity predicate, yet it is NP-hard to find a solution with value significantly better th...
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ژورنال
عنوان ژورنال: Prostate Cancer and Prostatic Diseases
سال: 2004
ISSN: 1365-7852,1476-5608
DOI: 10.1038/sj.pcan.4500777