In mobile distributed systems data broadcasting is widely used as a data dissemination solution, where we need an indexing scheme in order to energy-efficiently access the wireless data. In conventional indexing schemes, they use key attribute values and construct tree-structured index. Therefore, the conventional indexing schemes do not support content-based retrieval queries such as partial-match queries, range-queries, and so on. In this paper we propose an index method which supports content-based retrieval queries on wireless broadcast data stream. For this purpose, we construct a tree-structured index which is composed of bit-vectors, where the bit-vectors are generated from data records through multi-attribute hashing.
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- Multi-attribute Hashing of Wireless Data for Content-Based Queries
Yon Dohn Chung
Ji Yeon Lee
- Springer Berlin Heidelberg
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