Recently several database-based applications have emerged that are remote from data sources and need accurate histograms for query cardinality estimation. Traditional approaches fo...
The security policy of an information system may include a wide range of different requirements. The literature has primarily focused on access and information flow control require...
Instant Messaging (IM) is in addition to Web and Email the most popular service on the Internet. With xOperator we present a strategy and implementation which deeply integrates Ins...
—Due to the proliferation of WiFi access points, indoor localization methods based on WiFi signal strengths are becoming more and more attractive because they don’t require add...
User authentication involves establishing a user's right to access a system. Most user authentication is done with text passwords, which have advantages over other approaches...