Indexing Set-Valued Attributes with a Multi-Level Extendible Hashing Scheme
Helmer, S. and Aly, R.B.N. and Neumann, T. and Moerkotte, G. (2007) Indexing Set-Valued Attributes with a Multi-Level Extendible Hashing Scheme. In: 18th International Conference of Database and Expert Systems Applications, DEXA 2007, 2-7 September 2007, Regensburg, Germany (pp. pp. 98-108).
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|Abstract:||We present an access method for set-valued attributes that is based on a multi-level extendible hashing scheme. This scheme avoids exponential directory growth for skewed data and thus generates a much smaller number of subqueries for query sets (up to now fast-growing directories have prohibited the use of hash-based index structures for set-valued retrieval).
We demonstrate the advantages of our scheme over regular extendible hashing both analytically and experimentally. Additionally, we compare the performance of a prototype implementation with that of several other access methods; the results underline the benefits of our approach.
|Item Type:||Conference or Workshop Item|
|Copyright:||© 2007 Springer|
Electrical Engineering, Mathematics and Computer Science (EEMCS)
|Link to this item:||http://purl.utwente.nl/publications/61763|
|Export this item as:||BibTeX|
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