We introduce the Haar+ tree: a refined, wavelet-inspired data structure for synopsis construction. The advantages of this structure are twofold: First, it achieves higher synopsis...
A key method for privacy preserving data mining is that of randomization. Unlike k-anonymity, this technique does not include public information in the underlying assumptions. In ...
We address skyline and top-k processing in web interaction scenarios. We model the problem space based on game theory principles and present new algorithms and heuristics to reali...
Ordinary people have access to unprecedented volumes of information today. Researchers in the fields of information management (IM) and human-computer interaction (HCI) are reacti...