In view of the phenomena of miss and noise in CBMdisc retrieval,the author analyzes their causative factors on the basis of a discussion on the characteristics of descriptors and free words as well as the quality of d...In view of the phenomena of miss and noise in CBMdisc retrieval,the author analyzes their causative factors on the basis of a discussion on the characteristics of descriptors and free words as well as the quality of database.Some suggestions are given on how to avoid miss and noise in CBMdisc retrieval.展开更多
文摘In view of the phenomena of miss and noise in CBMdisc retrieval,the author analyzes their causative factors on the basis of a discussion on the characteristics of descriptors and free words as well as the quality of database.Some suggestions are given on how to avoid miss and noise in CBMdisc retrieval.