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

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