Callan, J., Lu, Z., & Croft, W. B. ( 1995 ). Searching distributed collections with inference networks . The 19 th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , Seattle, Washington ( pp. 21 “28 ).
Gravano, L. & Garcia-Molina, H. ( 1995 ). Generalizing GlOSS to vectorspace databases and broker hierarchies . Stanford, CA : Stanford University, Computer Science Department . ( Technical Report )
Lam, K. & Yu, C. ( 1982 ). A clustered search algorithm incorporating arbitrary term dependencies . ACM Transactions on Database Systems , 500 “508 .
Salto, G. ( 1989 ). Automatic Text Processing: The Transformation, Analysis, and Retrieval of Information by Computer . New York : Addison-Wesley .
Salto, G. & McGill, M. ( 1983 ). Introduction to Modern Information Retrieval . New York : McGraw-Hill .
Yu, C., Luk, W., & Siu, M. ( 1978 ). On the estimation of the number of desired records with respect to a given query . ACM Transactions on Database Systems , 3 ( 4 ), 41 “56 .
Yuwono, B. & Lee, D. ( 1997 ). Server ranking for distributed text resource system on the Internet . The 5 th International Conference on Database Systems for Advanced Application , Melbourne, Australia ( pp. 391 “400 ).
Zhang, M. & Zhang, C. ( 1999 ). Potential cases, methodologies, and strategies of synthesis of solutions in distributed expert system . IEEE Transactions on Knowledge and Database Engineering , 11 ( 3 ), 498 “503 .