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From Computational Complexity

Alice and Bob and Pat and Vanna

"The only useful thing computer science has given us is Alice and Bob" - A physicist at a 1999 quantum computing workshop Alice and Bob, great holders of secrets...

From Computational Complexity

A Bridge Too Far

In Atlanta last week a fire destroyed a major highway bridge right on my, and so many others, commutes. I've been playing with different strategies, like coming...

From Computational Complexity

Parity Games in Quasipolynomial Time

In one of the hallway discussions of last week's Dagstuhl I learned about an upcoming STOC paper Deciding Parity Games in Quasipolynomial Time by Cristian Calude...

From Computational Complexity

The Dagstuhl Family

This week I'm at the Dagstuhl workshop on Computational Complexity of Discrete Problems. As you long time readers know Dagstuhl is a German center that hosts...

From Computational Complexity

NP in ZPP implies PH in ZPP

If NP is in ZPP is the entire polynomial-time hierarchy in ZPP? I saw this result used in an old TCS Stackexchange post but I couldn't find a proof (comment ifharder...

From Computational Complexity

The Beauty of Computation

Lisa Randall wrote a New York Times book review of Carlo Rovelli's Reality Is Not What It Seems with some interesting responses. I want to focus on a single sentence...

From Computational Complexity

International Science

I did some counting and the 35 academic faculty members in the Georgia Tech School of Computer Science come from 14 different countries. My co-authors come from...

From Computational Complexity

Ken Arrow and Oscars Voting

Kenneth Arrow, the Nobel Prize winning economist known for his work on social choice and general equilibrium, passed away Tuesday at the age of 95. I can't cover...

From Computational Complexity

Liberatus Wins at Poker

Tuomas Sandholm (center) and Ph.D. student Noam Brown (via CMU) Congratulations to Liberatus the new poker champ. Liberatus, an AI program, beat several top-ranked...

From Computational Complexity

The Dichotomy Conjecture

Arash Rafiey, Jeff Kinne and Tomás Feder settle the Feder-Vardi dichotomy conjecture in their paper Dichotomy for Digraph Homomorphism Problems. Jeff Kinne is my...

From Computational Complexity

We Are All Iranians

A solidarity rally held at Georgia Tech today There are ten Iranian members of my department, the School of Computer Science at Georgia Tech, all of whom face...

From Computational Complexity

60 years of Eric and Mike

As I checked in at the Holiday Inn in New Brunswick Wednesday night, they asked me if I had stayed there before. I said it has been a while and they lookedWorkshop...

From Computational Complexity

Infinite Series and Markov Chains

There's a wonderful new series of math videos PBS Infinite Series hosted by Cornell Math Phd student Kelsey Houston-Edwards. Check out this latest video on Markov...

From Computational Complexity

Babai Strikes Back

"So it is quasipolynomial time again" Short Version: Babai fixed his proof. In November 2015 László Babai announced a talk "Graph Isomorphism in Quasipolynomial...

From Computational Complexity

Learning About Learning

Yesterday Scott Aaronson released his sweeping new P v NP survey. Babai gave an update on graph isomorphism, in short while he still has the first subexponential...

From Computational Complexity

Complexity Year in Review 2016

Paper of the year goes to A Discrete and Bounded Envy-Free Cake Cutting Protocol for Any Number of Agents by Haris Aziz and Simon Mackenzie. Might not seem like...

From Computational Complexity

Hidden Figures

Yesterday in our tradition of seeing math movies on Christmas, we saw Hidden Figures, the story of African-American women who worked as "computers" at NASA in...

From Computational Complexity

Moneyball for Academics

MIT and Tel Aviv business school professors Dimitris Bertsimas, Erik Brynjolfsson, Shachar Reichman and John Silberholz wrote an intriguing paper Tenure Analytics...

From Computational Complexity

Freedom of Speech

Bill and I have always strongly believed in the principle of freedom of speech, guaranteed to us by the constitution of the United States.  The government block...

From Computational Complexity

Fixing the Academic Job Market

Last month I posted about the craziness of the computer science academic job market due mainly to the decentralized nature of our field. Here are some ideas ofSingle...
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