Andries Kruger

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The web has greatly improved the accessibility of scientific information, however the role of the web in formal scientific publishing has been debated. Some argue that the lack of persistence of web resources means that they should not be cited in scientific research. We analyze references to web resources in computer science publications, finding that the(More)
We present DEADLINER, a search engine that catalogs conference and workshop announcements, and ultimately will monitor and extract a wide range of academic convocation material from the web. The system currently extracts speakers, locations, dates, paper submission (and other) deadlines, topics, program committees, abstracts, and affiliations. A user or(More)
Users looking for documents within specific categories may have a difficult time locating valuable documents using general purpose search engines. We present an automated method for learning query modifications that can dramatically improve precision for locating pages within specified categories using web search engines. We also present a classification(More)
We analyze the persistence of information on the web, looking at the percentage of invalid URLs contained in academic articles within the CiteSeer database. The number of URLs contained in the papers has increased from an average of 0.06 in 1993 to 1.6 in 1999. We found that a significant percentage of URLs are now invalid, ranging from 23% for 1999(More)
26 Computer Persistence of Web References in Scientific Research R esearchers have long desired immediate access to all scientific knowledge. Although there are still major hurdles to overcome, 1 the Internet has brought this goal closer to reality. Scientists use the Internet to communicate their findings to a broader audience than ever before, and formal(More)
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