2000s
- 2001 - Lempel–Ziv–Markov chain algorithm for compression developed by Igor Pavlov
- 2001 - Viola–Jones algorithm for real-time face detection was developed by Paul Viola and Michael Jones.
- 2002 - AKS primality test developed by Manindra Agrawal, Neeraj Kayal and Nitin Saxena
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