Fixed or fluid?: document stability and new media
ECHT '94 Proceedings of the 1994 ACM European conference on Hypermedia technology
Learning and Revising User Profiles: The Identification ofInteresting Web Sites
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Enabling the reuse of World Wide Web documents in tutorials
Enabling the reuse of World Wide Web documents in tutorials
Hypertext paths and the World-Wide Web: experiences with Walden's Paths
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CiteSeer: an automatic citation indexing system
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Managing gigabytes (2nd ed.): compressing and indexing documents and images
Managing gigabytes (2nd ed.): compressing and indexing documents and images
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Proceedings of the fourteenth ACM conference on Hypertext and hypermedia
Managing distributed collections: evaluating web page changes, movement, and replacement
Proceedings of the 4th ACM/IEEE-CS joint conference on Digital libraries
Temporal multi-page summarization
Web Intelligence and Agent Systems
What can history tell us?: towards different models of interaction with document histories
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Parallel crawler architecture and web page change detection
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Temporal ranking of search engine results
WISE'05 Proceedings of the 6th international conference on Web Information Systems Engineering
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The Web provides access to a wide variety of information but much of this information is fluid; it changes, moves, and occasionally disappears. Bookmarks, paths over Web pages, and catalogs like Yahoo! are examples of page collections that can become out-of-date as changes are made to their components. Maintaining these collections requires that they be updated continuously. Tools to help in this maintenance require an understanding of what changes are important, such as when pages no longer exist, and what changes are not, such as when a visit counter changes. We performed a study to look at the effect of the type and quantity of change on people's perception of its importance. Subjects were presented pairs of Web pages with changes to either content (e.g., text), structure (e.g., links), or presentation (e.g., colors, layout). While changes in content were the most closely connected to subjects perceptions of the overall change to a page, subjects indicated a strong desire to be notified of structural changes. Subjects only considered the simultaneous change of many presentation characteristics as important.