%0 Journal Article %J The VLDB Journal—The International Journal on Very Large Data Bases %D 2000 %T Learning response time for websources using query feedback and application in query optimization %A Gruser,J. R %A Raschid, Louiqa %A Zadorozhny,V. %A Zhan,T. %B The VLDB Journal—The International Journal on Very Large Data Bases %V 9 %P 18 - 37 %8 2000/// %G eng %N 1