Introduces the multicharacter trie as an index structure that can improve the time needed for retrieving full-text materials stored on CD-ROMs. The advantages of this structure compared to other structures are described, and experimental results comparing it to the widely used B+ tree and other structures used for full-text retrieval are…

Based on evaluations of 1,025 CD-ROM products, this article summarizes trends in (1) growth of commercially available CD-ROM titles; (2) types and subjects of products produced; (3) update options; (4) hardware systems CD-ROMs are designed to run on; (5) prices; and (6) multimedia products. Possible future developments that could revolutionize…

Presents guidelines developed by the International Coalition of Library Consortia (ICOLC) for statistical measures of the use of Web-based indexed, abstracted, and full-text resources. Privacy, user confidentiality, comparative statistics, and access and delivery mechanisms are discussed. (LRW)