Lower bounds for off-line range searching

Lower bounds for off-line range searching

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Article ID: iaor1998760
Country: United States
Volume: 17
Issue: 1
Start Page Number: 53
End Page Number: 65
Publication Date: Jan 1997
Journal: Discrete and Computational Geometry
Authors:
Keywords: computational analysis
Abstract:

This paper proves three lower bounds for variants of the following range-searching problem: given n weighted points in Rd and n axis-parallel boxes, compute the sum of the weights within each box: (1) if both additions and subtractions are allowed, we prove that Ω(n log log n) is a lower bound on the number of arithmetic operations; (2) if subtractions are disallowed the lower bound becomes Ω(n(log n/log log n)d–1), which is nearly optimal; (3) finally, for the case where boxes are replaced by simplices, we establish a quasi-optimal lower bound of Ω(n2–2/(d+1))/polylog(n).

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