Deterministic algorithms for the Lovász local lemma: Simpler, more general, and more parallel

نویسندگان

چکیده

The Lovász local lemma (LLL) is a keystone principle in probability theory, guaranteeing the existence of configurations which avoid collection ℬ $$ \mathcal{B} “bad” events are mostly independent and have low probability. A seminal algorithm Moser Tardos (J. ACM, 2010, 57, 11) (which we call MT algorithm) gives nearly-automatic randomized algorithms for most constructions based on LLL. However, deterministic lagged behind. We address three specific shortcomings prior algorithms. First, our applies to LLL criterion Shearer (Combinatorica, 1985, 5, 241–245); this more powerful than alternate criteria also leads cleaner legible bounds. Second, provide parallel with much greater flexibility. Third, derandomized version MT-distribution, that is, distribution variables at termination algorithm. show applications non-repetitive vertex coloring, transversals, strong other problems.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Deterministic Algorithms for the Lovász Local Lemma

The Lovász Local Lemma [5] (LLL) is a powerful result in probability theory that states that the probability that none of a set of bad events happens is nonzero if the probability of each event is small compared to the number of events that depend on it. It is often used in combination with the probabilistic method for non-constructive existence proofs. A prominent application is to k-CNF formu...

متن کامل

Deterministic parallel algorithms for fooling polylogarithmic juntas and the Lovász Local Lemma

Many randomized algorithms can be derandomized efficiently using either the method of conditional expectations or probability spaces with low (almost-) independence. A series of papers, beginning with work by Luby (1988) and continuing with Berger & Rompel (1991) and Chari et al. (1994), showed that these techniques can be combined to give deterministic parallel algorithms for combinatorial opt...

متن کامل

Parallel algorithms for the Lopsided Lovász Local Lemma

The Lovász Local Lemma (LLL) is a probabilistic tool which shows that, if a collection of “bad” events B in a probability space are not too likely and not too interdependent, then there is a positive probability that no bad-events in B occur. Moser & Tardos (2010) gave sequential and parallel algorithms which transformed most applications of the variable-assignment LLL into efficient algorithms...

متن کامل

Dissertation ALGORITHMS AND GENERALIZATIONS FOR THE LOVÁSZ LOCAL LEMMA

Title of Dissertation ALGORITHMS AND GENERALIZATIONS FOR THE LOVÁSZ LOCAL LEMMA David G. Harris, Doctor of Philosophy, 2015 Dissertation directed by: Professor Aravind Srinivasan, Department of

متن کامل

ذخیره 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: Random Structures and Algorithms

سال: 2023

ISSN: ['1042-9832', '1098-2418']

DOI: https://doi.org/10.1002/rsa.21152