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DAIS
2009
15 years 1 months ago
Automated Assessment of Aggregate Query Imprecision in Dynamic Environments
Queries are widely used for acquiring data distributed in opportunistically formed mobile networks. However, when queries are executed in such dynamic settings, the returned result...
Vasanth Rajamani, Christine Julien, Jamie Payton
WWW
2009
ACM
16 years 4 months ago
Efficient interactive fuzzy keyword search
Traditional information systems return answers after a user submits a complete query. Users often feel "left in the dark" when they have limited knowledge about the unde...
Shengyue Ji, Guoliang Li, Chen Li, Jianhua Feng
ADC
2004
Springer
87views Database» more  ADC 2004»
15 years 9 months ago
On the Computation of Approximations of Database Queries
Reflective Relational Machines were introduced by S. Abiteboul, C. Papadimitriou and V. Vianu in 1994, as variations of Turing machines which are suitable for the computation of ...
Flavio Antonio Ferrarotti, Jose Maria Turull Torre...
IDEAS
2006
IEEE
104views Database» more  IDEAS 2006»
15 years 9 months ago
Exploiting Indifference for Customization of Partial Order Skylines
Unlike numerical preferences, preferences on attribute values do not show an inherent total order, but skyline computation has to rely on partial orderings explicitly stated by th...
Wolf-Tilo Balke, Ulrich Güntzer, Wolf Sibersk...
JGTOOLS
2006
199views more  JGTOOLS 2006»
15 years 3 months ago
Fast Approximation of High-Order Voronoi Diagrams and Distance Transforms on the GPU
We present a graphics hardware implementation of the tangent-plane algorithm for computing the kth-order Voronoi diagram of a set of point sites in image space. Correct and effici...
Ian Fischer, Craig Gotsman