A new digital divide is emerging both within and between nations that is due to inequalities in broadband Internet access. Our research examines the broadband digital divide by an...
An important means of allowing non-expert end-users to pose ad hoc queries — whether over single databases or data integration systems — is through keyword search. Given a set...
Abstract—We first present a problem called precedence constrained two traveling salesman (PC2TSP). We propose a nearoptimal heuristic to PC2TSP to generate tours by clustering p...
The RESER workshop provides a venue in which empirical software engineering researchers can discuss the theoretical foundations and methods of replication, as well as present the ...
Jonathan L. Krein, Charles D. Knutson, Lutz Preche...
We present an effective optimization framework for general SQLlike map-reduce queries, which is based on a novel query algebra and uses a small number of higher-order physical ope...