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Dynamic interval index structure in constraint database systems

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Abstract

Interval index structure plays an important role in constraint database systems. A dynamic interval index structure DM-tree is presented in this paper. The advantage of the DM-tree compared with other interval index structures is that the dynamic operations of insertion and deletion can be operated on the new structure. The storage complexity of the tree isO(n), and the query I/O complexity isO(logn+t/B). To improve the performance of the inserting and deleting operations, some methods such as neighbored-constraint and update-late are applied. The I/O complexity of inserting and deleting operations is the same as that in B-tree, i.e.,O(logn).

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Authors and Affiliations

  1. Department of Computer Science, Fudan University, 200433, Shanghai, P. R. China

    Wang Wei, Wang Yujun & Shi Baile

Authors
  1. Wang Wei
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  2. Wang Yujun
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  3. Shi Baile
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Corresponding author

Correspondence to Wang Wei.

Additional information

Supported by the National Natural Science Foundation of China under grant Nos. 69933010 and 69773012.

WANG Wei was born in 1970. He received the M.S. degree in 1992 and the Ph.D. degree in 1998. Now he is a lecturer of the Department of Computer Science, Fudan University. His main research areas include spatial-temporal database, constraint database, index technology and semistructure database.

WANG Yujun was born in 1970. He received the M.S. degree in 1991 and the Ph.D. degree in 1997. Now he is an associate professor of the Department of Computer, Science, Fudan University. His main research areas include object-oriented database, constraint database and index technology.

SHI Baile was born in 1935. He received the M.S. degree in 1956. Now he is a professor of the Department of Computer Science, Fudan University. His main research areas include object-oriented database, knowledge database, digital library.

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Wang, W., Wang, Y. & Shi, B. Dynamic interval index structure in constraint database systems. J. Comput. Sci. & Technol. 15, 542–551 (2000). https://doi.org/10.1007/BF02948836

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  • DOI: https://doi.org/10.1007/BF02948836

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