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COMAD
2008
15 years 8 months ago
Concurrency Control in Distributed MRA Index Structure
Answering aggregate queries like sum, count, min, max over regions containing moving objects is often needed for virtual world applications, real-time monitoring systems, etc. Sin...
Neha Singh, S. Sudarshan
AAAI
2006
15 years 8 months ago
Compilation of Query-Rewriting Problems into Tractable Fragments of Propositional Logic
We consider the problem of rewriting a query efficiently using materialized views. In the context of information integration, this problem has received significant attention in th...
Yolifé Arvelo, Blai Bonet, Maria-Esther Vid...
AIPS
2006
15 years 8 months ago
Looking for Shortcuts: Infeasible Search Analysis for Oversubscribed Scheduling Problems
Searches that include both feasible and infeasible solutions have proved to be efficient algorithms for solving some scheduling problems. Researchers conjecture that these algorit...
Mark F. Rogers, Adele E. Howe, Darrell Whitley
DAGSTUHL
2006
15 years 8 months ago
Optimal Bidding Strategies for Simultaneous Vickrey Auctions with Perfect Substitutes
In this paper, we derive optimal bidding strategies for a global bidder who participates in multiple, simultaneous second-price auctions with perfect substitutes. We first conside...
Enrico H. Gerding, Rajdeep K. Dash, David C. K. Yu...
ECIS
2000
15 years 8 months ago
Pricing Digital Information Goods and Services on the Net
Many analysts argue that the Internet is producing a fundamental change in the way that business works. The network economy grows faster every day. Internet markets are developing ...
Laurent L. Pauwels, Paul B. McLeod