title: videoanywhere : a system for searching and managing distributed video assets. authors: amit p. sheth , kshitij shah , clemens bertram. venue: sigmod record. year: 1999
title: query caching and optimization in distributed mediator systems. authors: s. adali , k. s. candan , y. papakonstantinou , v. s. subrahmanian. venue: international conference on management of data. year: 1996