דלג לתוכן (מקש קיצור 's')
אירועים

אירועים והרצאות בפקולטה למדעי המחשב ע"ש הנרי ומרילין טאוב

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דין דורון (אונ' תל-אביב)
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יום רביעי, 04.01.2017, 12:30
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טאוב 201
In this talk, we show an explicit construction of extractors for two independent sources of near-logaritmic min-entropy.

Previous constructions required either polylog(n) min-entropy or more than two sources.

The result extends the breakthrough result of Chattopadhyay and Zuckerman and also uses non-malleable extractors.

The main new ingredient is a somewhere-random condenser with a small entropy gap, used as a sampler.

Our construction can be seen as an efficient reduction to constructing non-malleable extractors, so using very recent constructions of non-malleable extractors (by Cohen and Li) - we will see how to obtain explicit two-source extractor for O(log n loglog n) min-entropy and constant error.