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Chao Xu

Research Scientist at Yahoo! Research.

I'm interested in algorithms, combinatorial optimization, computational geometry and problem solving in general.

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  • New York, NY, USA
  • chaoxu
  • chaoxuprime.com
  • Member for 7 years, 7 months
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  • Last seen yesterday

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Top posts (43) All Questions Answers | Votes Newest

32 Is it NP-hard to fill up bins with minimum moves? Jun 3 '13
28 Subset sum problem with many divisibility conditions Aug 12 '12
22 Collectively pay the bill problem Jul 8 '12
14 Are runtime bounds decidable for anything nontrivial? Jun 7 '13
13 Use minimum number of swaps so each bin contains balls of the same color Jun 9 '13
11 Complexity of finding the pseudoinverse matrix Apr 23 '14
11 Sorting when there are only O(log n) many different numbers Aug 17 '14
10 Is the following extension of finite state automata studied? Oct 1 '16
10 A programming language that can only implement computable bijective functions? Nov 22 '12
8 Bit complexity of O(1) time range query in a $k$-ary array Jan 10 '13
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