Approximate nearest neighbor search (ANNS) is a long-studied problem in computational geometry  that has received considerable attentions by researchers in the community.
<fluency> Approximate nearest neighbor search (ANNS) is a long-studied problem in computational geometry  that has received considerable attentions by researchers in the community.
Approximate near-neighbors search (ANNS) is a long-studied problem in computational geometry that has received considerable attentions by researchers in the community.