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Test of Time

April 30, 2021


Time is the ultimate critic. What future generations think of us and our work ultimately determines our standing or lack of it— Stewart Stafford

Bobby Kleinberg just reached out to those of us who post from time to time. He wanted some help in announcing a new STOC Test of Time Award.

So today, Ken and I put this together.

Bobby said:

As with FOCS, three awards will be given: one for papers from approximately 10 years ago, one for approximately 20 years ago, and one for approximately 30 years ago. The selection committee for this year’s award will be Joe Halpern, Mihalis Yannakakis, and Salil Vadhan.

I would suggest that one of Bobby’s papers could fit this award:

Group-theoretic algorithms for matrix multiplication
Henry Cohn, Robert Kleinberg, Balazs Szegedy, Christopher Umans

Well, I can say that without being out of order here because that paper was in FOCS, not STOC.

Criteria

  • Area: Opening up a new area of research

  • Proof: Introducing new proof techniques

  • Use: Solving a problem of lasting importance

  • Else: Stimulating advances in other areas of computer science or in other disciplines.

    Go here for details on how to nominate. By the way: Another test of Time is that the nominations are due relatively soon—May 24. So if you wish to nominate some paper please act soon.

    Ken notes that the first criterion could also be called Leadership, the second always comes with an element of Surprise, and the last two have aspects of Applicability and Practicality. Adding those to my terms makes a double acronym APPLAUSE.

    Early Early Years

    I have been around long enough to fit the a 30++ years category, and Ken almost ditto. Here are some opinions on the early days. Those papers with

    are an absolute must include—I hope you agree.

    1981:

    Space-Bounded Probabilistic Turing Machine Complexity Classes Are Closed under Complement
    Use.

    1982:

    Shafi Goldwasser, Silvio Micali
    Probabilistic Encryption and How to Play Mental Poker Keeping Secret All Partial Information
    Area.

    1983:

    Miklós Ajtai, Janos Komlós, and Endre Szemerédi
    An {0(n \log n)} sorting network
    Use and Proof.

    Larry Stockmeyer
    The complexity of approximate counting
    Use.

    1984:

    Les Valiant
    A theory of the learnable
    Area and Else.

    Narendra Karmarkar
    A new polynomial-time algorithm for linear programming
    Use and Proof.

    Of course, these are my own opinions (with concurrence from Ken) and do not reflect those of organizations we belong to.

    Open Problems

    Ken thinks that one way not to be asked here about my own papers is to mention one, so here goes:

    1980

    Ravindran Kannan, Richard Lipton
    The Orbit Problem is Decidable
    Proof. Ken adds: Could also be Surprise because we not only showed decidable but in polynomial time. But the real test of time here may be whether (despite some technical limitations) it proves useful to the great recent interest in adjacent kinds of orbit problems in invariant and reachability theory.

  • 6 Comments leave one →
    1. TCS is bs permalink
      April 30, 2021 9:13 pm

      1983 sorting looks genuinely important to complexity as $CC^1$ containing $CH$ can supercede 1981, render 1982 useless, supercede 1983 approximate counting and 1984 LP and I cannot comment on 1984 learning theory. Is sorting in Logspace uniform TC^0?

    2. Ryan O'Donnell permalink
      May 1, 2021 10:05 am

      It would be nice on the nominations page if they put links to the Tables of Contents for STOC 2011, 2001, 1991…

      • May 7, 2021 10:55 am

        Great suggestion, Ryan! I’ve updated the call for nominations page to include links to the tables of contents.

      • May 7, 2021 10:57 am

        Great idea, Ryan! I’ve updated the nominations page to include those links.

    Trackbacks

    1. Baby Steps | Gödel's Lost Letter and P=NP
    2. Two Other Tests of Time | Gödel's Lost Letter and P=NP

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