5GARDNER Michael, DOBSON Judith, MILLER Brian. Implementation of a "data filter"for the UK national marine monitoring programme [J]. Aecred. Qual. Assur. , 2002, 7: 60-65.
6NEWELL SIMA C. User models and filtering agents for improved internet information retrieval [J]. User Modeling and User-adopted Interaction, 2005,7: 223-237.