Utility Based Optimal Task Scheduling Problem in a Multi-agent System

Author(s):  
Xiaowei Zhang ◽  
Bin Li ◽  
Junwu Zhu ◽  
Jun Wu
2019 ◽  
Vol 06 (04) ◽  
pp. 423-437
Author(s):  
Piotr Jędrzejowicz ◽  
Ewa Ratajczak-Ropel

In this paper, a multi-agent system (MAS) based on the A-Team concept is proposed to solve the Distributed Resource-Constrained Multi-Project Scheduling Problem (DRCMPSP). In the DRCMPSP, multiple distributed projects are considered. Hence, the local task schedule for each project and a coordination of the shared decisions are considered. The DRCMPSP belongs to the class of the strongly NP-hard optimization problems. Multi-agent system seems the natural way of solving such problems. The A-Team MAS, proposed in this paper, has been built using the JABAT environment where two types of the optimization agents are used: local and global. Local optimization agents are used to find solutions for the local projects, and global optimization agents are responsible for the coordination of the local projects and for finding the global solutions. The approach has been tested experimentally using 140 benchmark problem instances from MPSPLIB library with minimizing the Average Project Delay (APD) as global optimization criterion.


2014 ◽  
Vol 513-517 ◽  
pp. 2710-2713
Author(s):  
Qi Qi Zhang ◽  
Peng Liu ◽  
Tao Zhang

Based on slab location and discharge decision, this paper researches the solution of transportation scheduling in the Slab Warehouse, builds up a mathematical model with an objective of minimize the total transportation time considering the location and discharge task at the same time. Moreover, decentralizes this objective to different Agents to form a Multi-Agent system. And reconciles the conflicts among Agents based on a biding-arbitration mechanism. The simulation results show that the system could be performed efficiently and balanced.


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