Usage analysis of a digital library
Proceedings of the third ACM conference on Digital libraries
Computer architecture (2nd ed.): a quantitative approach
Computer architecture (2nd ed.): a quantitative approach
Usage patterns of a Web-based library catalog
Journal of the American Society for Information Science and Technology
Mining web logs for prediction models in WWW caching and prefetching
Proceedings of the seventh ACM SIGKDD international conference on Knowledge discovery and data mining
IEEE Internet Computing
Proxy Prefetch and Prefix Caching
ICPP '02 Proceedings of the 2001 International Conference on Parallel Processing
Integrating Article Databases and Full Text Archives into a Digital Journal Collection
ECDL '98 Proceedings of the Second European Conference on Research and Advanced Technology for Digital Libraries
A Comparative Transaction Log Analysis of Two Computing Collections
ECDL '00 Proceedings of the 4th European Conference on Research and Advanced Technology for Digital Libraries
Search Behavior in a Research-Oriented Digital Library
ECDL '01 Proceedings of the 5th European Conference on Research and Advanced Technology for Digital Libraries
Effectiveness of caching in a distributed digital library system
Journal of Systems Architecture: the EUROMICRO Journal
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Today document archives are geographically distributed but often not replicated. This can potentially result in a low quality of service in terms of reduced availability and long user-perceived access times. Instead of indiscriminate replication we study the effectiveness of caching techniques such as prefetching and selective preloading.Our technique analyzes whether user access behavior is predictable enough to guess what articles to prefetch or to preload based on access logs from DADS, a digital library system for scientific journal articles developed at DTV, the Technical Knowledge Center of Denmark. We have found that once a literature search has been narrowed to up to ten articles, there is a high likelihood that some of them will be eventually downloaded. This suggests that prefetching can be used to hide the article transfer latency. We have also found that 80% of the article downloads are confined to less than 20% of the journals, so preloading a small fraction of the digital library database could significantly shorten the access latency and improve the availability.