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Ryszard Maciol

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Professional Interests

Signal&Image Processing, Data Compression, Data Mining, Information Theory, Multimedia Retrieval and Machine Learning


Solver +10

Earned on 18 Aug 2012 for solving Problem 1. Times 2 - START HERE.

Promoter +10

Earned on 19 Aug 2012 for liking Solution 109418.

Commenter +10


Comment on a problem or solution.

Speed Demon +50


Solve a problem first.

Leader +20


Solve a problem with a best solution.

CUP Challenge Master +50


Solve all the problems in CUP Challenge problem group.

Quiz Master +20


Must have 50 solvers for a problem you created.

Tiles Challenge Master +50

Earned on 6 May 2014 for solving all the problems in Tiles Challenge.

Cody Challenge Master +50

Earned on 14 Mar 2013 for solving all the problems in Cody Challenge.

ASEE Challenge Master +50

Earned on 12 Mar 2014 for solving all the problems in ASEE Challenge.

Puzzler +50


Create 10 problems.

Scholar +50


Solve 500 problems.

Famous +20


Must receive 25 total likes for the problems you created.

Renowned +20


Must receive 10 likes for a solution you submitted.

Celebrity +20


Must receive 50 total likes for the solutions you submitted.

Likeable +20


Must receive 10 likes for a problem you created.