Baum Welch Algorithm: Computer science, Computational statistics, Bioinformatics, Hidden Markov model, Forward backward algorithm, Lloyd R.

Soft Output Viterbi Algorithm: Algorithm, A priori, Decoder, Dynamic Programming, Markov Information...

Pseudorandom Generator: Theoretical Computer Science, Deterministic Algorithm, Pseudorandomness

approximation algorithm: Operations research, Optimization problem, algorithm, Heuristic (computer science), Constant factor...

Alexander Brudno: Jews, Computer science, Alpha-beta pruning, Search algorithm