Distributed professional information acquisition system

An Agent-based distributed information acquisition system for professionalsearch engines is advanced and the principles,fra-mework,composition and function of each part of the system are introduced specifically.The communicating security design is also in-troduced.Some common systems collected professional information by the way that filtering data after collecting them,which wasted resource.The system solves the problem.The system also can learn the distribution of expertise in the network continuously to improve efficiency of collecting professional information.The system has other advantages such as needing little resource,implementing easily and high efficiency.