vke@cacs.usl.edu (Venkatesh K. Elayavalli) (03/27/91)
Hi, I am currently working on Large Join Query Optimization (LJQOP) using Genetic Algorithms. I am having trouble in identifying a suitable Cost function so that I will be able to complete the project by the end of next month. I have figured out the basic mechanics of the problem (i. e. representation, cross-over and mutation process etc) but i am not able to find a cost function that is simple and effective enough, given the time frame. I have gone thro' the literature and found the work reported by Swami & Guptha [SIGMOD 88] and Swami [SIGMOD 89] very interesting. I am also interested in the cost function that they have used and would like to have more information about it. At least, i would like to have the e-mail addresses of either of the two authors. I would appreciate if anybody can provide some pointers like, papers, journal articles, transaction papers, personal notes etc. Thanks in advance. Sincerely Venkatesh K. Elayavalli Address : P. O. Box 41544 Lafayette, LA 70503 (email : vke@cacs.usl.edu) phone : (318) 231 - 5809 (Off)