Design and Simulation of Trust-Filtered Approach for Resource Selection in Grid Market
Bin Wu · Jisuanji fangzhen · 2009
The previous deadline and budget constrained (DBC) algorithms were proposed to guide resource selection in grid market. However those algorithms are not suitable for unreliable environment, where malicious providers may boast performance or cease contract. By employing trust mechanism into grid market, a trust-filtered approach was proposed for resource selection to bridge this gap. This approach first filters most of the lower-trust resources basing user’s trust demand. To the remaining resources above demand, it then uses a minimal opportunity-cost algorithm to guide the judgment. Its main idea is to takes both of price and risk into considerations. Simulations show the approach gives two-fold incentives. It effectively guarantees profit of reliable resources, and reduces job failure rate and cost of users.