To resolve the contradiction of domain currency and abstract quality of automatic abstracting systems

we put forward the solution to build automatic abstracting systems based on multiagent technologies.To build such systems

there are two key problems:firstly

how many abstracting agents for each domain are suitable in some load.Secondly

what coordination strategy should be used.In this paper

the model of an automatic abstracting system based on multiagent technologies is given

and three kinds of coordination algorithms are set forth.We analyze the performance of the system based on the simulations

and get suitable number of abstracting agents for each domain in given load.Furthermore

we compare three given coordination algorithms.