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- W2033323819 abstract "Top-k queries have attracted interest in many different areas like network and system monitoring, information retrieval, sensor networks, and so on. Since today many applications issue top-k queries on distributed and outsourced databases, authentication of top-k query results becomes more important. This paper addresses the problem of authenticated top-k aggregation queries (e.g. “find the k objects with the highest aggregate values”) in a distributed system. We propose a new algorithm, called Authenticated Three Phase Uniform Threshold (A-TPUT), which provides not only efficient top-k aggregation over distributed databases but also authentication on the top-k results. We also introduce several enhancements for A-TPUT to reduce both the computation cost and the communication cost. Finally, we confirm the efficiency of our solutions through an extensive experimental evaluation." @default.
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- W2033323819 date "2012-09-01" @default.
- W2033323819 modified "2023-09-24" @default.
- W2033323819 title "Authenticated Top-K Aggregation in Distributed and Outsourced Databases" @default.
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- W2033323819 doi "https://doi.org/10.1109/socialcom-passat.2012.103" @default.
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