6 papers
Witness-Sensitive Detection of Induced Diamonds
Keren Censor-Hillel, Tomer Even, Virginia Vasillevska Williams +1
We provide a fast \emph{witness-sensitive} algorithm for detecting an induced diamond (a minus an edge) in an -vertex graph containing induced diamonds. Our algorithm…
Output-sensitive approximate counting via a measure-bounded hyperedge oracle, or: How asymmetry helps estimate -clique counts faster
Keren Censor-Hillel, Tomer Even, Virginia Vassilevska Williams
Dell, Lapinskas and Meeks [DLM SICOMP 2022] presented a general reduction from approximate counting to decision for a class of fine-grained problems that can be viewed as hyperedge…
When MIS and Maximal Matching are Easy in the Congested Clique
Keren Censor-Hillel, Tomer Even, Maxime Flin +1
Two of the most fundamental distributed symmetry-breaking problems are that of finding a maximal independent set (MIS) and a maximal matching (MM) in a graph. It is a major open qu…
Fast Approximate Counting of Cycles
Keren Censor-Hillel, Tomer Even, Virginia Vassilevska Williams
We consider the problem of approximate counting of triangles and longer fixed length cycles in directed graphs. For triangles, Tětek [ICALP'22] gave an algorithm that returns a $(1…
Faster Cycle Detection in the Congested Clique
Keren Censor-Hillel, Tomer Even, Virginia Vassilevska Williams
We provide a fast distributed algorithm for detecting -cycles in the \textsf{Congested Clique} model, whose running time decreases as the number of -cycles in the graph incre…
Prefix Filter: Practically and Theoretically Better Than Bloom
Tomer Even, Guy Even, Adam Morrison
Many applications of approximate membership query data structures, or filters, require only an incremental filter that supports insertions but not deletions. However, the design sp…