Digital materials are vulnerable to a number of different kinds of failures, including decay of the digital media, loss due to hackers and viruses, accidental deletions, natural disasters, and bankruptcy of the institution holding the collection. Digital archives can best survive failures if they have made several copies of their collections at…

This paper considers the processing of digital library queries, consisting of a text component and a structured component in distributed environments. The paper concentrates on the processing of the structured component of a distributed query. A method is proposed to identify the databases that are likely to be useful for processing any given…

Digital information can be lost for a variety of reasons, including magnetic decay, format and device obsolescence, human or system error, among many others. A solution is to build an archival repository, a system capable of storing and preserving digital objects as technologies and organizations evolve. Designing an archival repository is a…

This paper is focused on a central aspect in the design of a planned digital library for human movement, i.e. on the aspect of representation and recognition of human activity from video data. The method of representation is important since it has a major impact on the design of all the other building blocks of the system such as the user…

This study reports on faculty response to the Journal STORage project (JSTOR), an online system for accessing digital back archives of core journals in history and economics. Data were collected about general journal use, Internet use, and JSTOR use via a survey administered to 160 historians and economists at the University of Michigan and at…