Perhaps you should try some spelling variations:
"_ estimation algorithms" » "_ estimation algorithm", "_ optimization algorithms", "_ optimisation algorithm"
"pose optimized algorithm" » "pose optimized algorithms", "pose optimizer algorithms", "poses optimized algorithm", "jose optimized algorithm", "dose optimized algorithm"
"post optimized algorithm" » "post optimized algorithms", "post optimizer algorithms", "most optimized algorithm", "cost optimized algorithm"

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