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On Search Performance For Conjunctive Queries In Compressed, Fully Transposed Ordered Files
A new file organization method, providing very high performance for a large class of associative queries, is abstractly defined. The organization may be viewed both as a development of the fully transposed file as a generalized trie. Its average search performance is modelled under some simplifying...
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Published in | Fifth International Conference on Very Large Data Bases, 1979 pp. 155 - 163 |
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Main Author | |
Format | Conference Proceeding |
Language | English |
Published |
IEEE
1979
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Subjects | |
Online Access | Get full text |
DOI | 10.1109/VLDB.1979.718131 |
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Summary: | A new file organization method, providing very high performance for a large class of associative queries, is abstractly defined. The organization may be viewed both as a development of the fully transposed file as a generalized trie. Its average search performance is modelled under some simplifying assumptions. Also, the model's predictions are compared with measurement results obtained from a prototype system, and a qualitative agreement is found. For purpose of comparison, analytical and measured cost curves for fully transposed file search are also given. |
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DOI: | 10.1109/VLDB.1979.718131 |