TY - JOUR T1 - Learning response time for websources using query feedback and application in query optimization JF - The VLDB Journal—The International Journal on Very Large Data Bases Y1 - 2000 A1 - Gruser,J. R A1 - Raschid, Louiqa A1 - Zadorozhny,V. A1 - Zhan,T. VL - 9 CP - 1 ER -