ECCC
Electronic Colloquium on Computational Complexity
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About the ECCC

What we do and why

The Electronic Colloquium on Computational Complexity is a new forum for the rapid and widespread interchange of ideas, techniques, and research in computational complexity. The purpose of this Colloquium is to use electronic media for scientific communication and discussions in the computational complexity community. The Electronic Colloquium on Computational Complexity (ECCC) welcomes papers, short notes and surveys with
  • relevance to the theory of computation,
  • clear mathematical profile and
  • strictly mathematical format.

Central topics

  • models of computation and their complexity,
  • trade-off results,
  • complexity bounds (with the emphasis on lower bounds).
      Specific areas including complexity issues are
    • combinatorics,
    • communication complexity,
    • cryptography,
    • combinatorial optimization,
    • complexity of learning algorithms,
    • logic.

More reading

Here are some papers on the idea and concept of electronic colloquia and ECCC.
Latest News
7th April 2014 13:36

ECCC Archive DVD 2013

191 reports have been published on ECCC in 2013. The collection of all these reports is now available on DVD. You can order the archive (and also the archive DVDs from earlier years) at the local office. Please email < href="mailto:eccc@eccc.hpi-web.de">eccc@eccc.hpi-web.de for ordering.

4th March 2013 09:03

ECCC Archive DVD 2012

In 2012 we had a total count of 186 published reports on ECCC. The collection of all the reports from 2012 is now available on DVD. You can order the archive (and also the archive DVDs from earlier years) at the local office. Please email to eccc@eccc.hpi-web.de for ordering.

6th March 2012 12:04

ECCC Archive DVD 2011

In 2011 we had a total count of 174 published reports on ECCC. The collection of all the reports from 2011 is now available on DVD. You can order the archive (and also the archive DVDs from earlier years) at the local office. Please email to eccc@eccc.hpi-web.de for ordering.

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Latest Reports
TR16-132 | 23rd August 2016
Mitali Bafna, Satyanarayana V. Lokam, S├ębastien Tavenas, Ameya Velingker

On the Sensitivity Conjecture for Read-k Formulas

Various combinatorial/algebraic parameters are used to quantify the complexity of a Boolean function. Among them, sensitivity is one of the simplest and block sensitivity is one of the most useful. Nisan (1989) and Nisan and Szegedy (1991) showed that block sensitivity and several other parameters, such as certificate complexity, decision ... more >>>


TR16-131 | 21st August 2016
Andrej Bogdanov, Siyao Guo, Ilan Komargodski

Threshold Secret Sharing Requires a Linear Size Alphabet

We prove that for every $n$ and $1 < t < n$ any $t$-out-of-$n$ threshold secret sharing scheme for one-bit secrets requires share size $\log(t + 1)$. Our bound is tight when $t = n - 1$ and $n$ is a prime power. In 1990 Kilian and Nisan proved ... more >>>


TR16-130 | 11th August 2016
Arkadev Chattopadhyay, Michael Langberg, Shi Li, Atri Rudra

Tight Network Topology Dependent Bounds on Rounds of Communication

We prove tight network topology dependent bounds on the round complexity of computing well studied $k$-party functions such as set disjointness and element distinctness. Unlike the usual case in the CONGEST model in distributed computing, we fix the function and then vary the underlying network topology. This complements the recent ... more >>>


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