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Title: The interval B-tree
Authors: Ang, C.-H. 
Tan, K.-P. 
Keywords: Data structures
Information retrieval
Issue Date: 27-Jan-1995
Citation: Ang, C.-H., Tan, K.-P. (1995-01-27). The interval B-tree. Information Processing Letters 53 (2) : 85-89. ScholarBank@NUS Repository.
Abstract: The time index [4] is an index structure built to speed up the access of data with valid times satisfying some given conditions. Unfortunately its space complexity is O(n2) where n is the number of time intervals being stored. As a result, high disk I/O overhead is experienced in various operations such as the insertion and deletion of a time interval (O(n)) and the interval intersection operation (O(n2)). A new index structure is proposed using a B+-tree as the underlying structure. Its space complexity is reduced from O(n2) to O(n). The time complexity of insertion and deletion of an interval is reduced from O(n) to O(log n), and that of interval intersection is reduced from O(n2) to O(log n + F) where F is the time used to report intersections. © 1995 Elsevier Science B.V. All rights reserved.
Source Title: Information Processing Letters
ISSN: 00200190
DOI: 10.1016/0020-0190(94)00176-Y
Appears in Collections:Staff Publications

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