%0 Journal Article %A Reza Ghaemi and Amin Milani Fard and Hamid Tabatabaee and Mahdi Sadeghizadeh %D 2008 %J International Journal of Computer and Information Engineering %B World Academy of Science, Engineering and Technology %I Open Science Index 19, 2008 %T Evolutionary Query Optimization for Heterogeneous Distributed Database Systems %U https://publications.waset.org/pdf/12865 %V 19 %X Due to new distributed database applications such as huge deductive database systems, the search complexity is constantly increasing and we need better algorithms to speedup traditional relational database queries. An optimal dynamic programming method for such high dimensional queries has the big disadvantage of its exponential order and thus we are interested in semi-optimal but faster approaches. In this work we present a multi-agent based mechanism to meet this demand and also compare the result with some commonly used query optimization algorithms. %P 2305 - 2311