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Web search engines slow on the update.
Byline: tcaldwell
Web search engines slow on the update
A researcher has uncovered serious shortcomings in how web search engines update their databases.
None of the search engines in a study by Dirk Lewandowski updated their results on the same day as there was a change in the web pages they were indexing.
"There's simply no use in indexing a page daily if the search engine is not able to show this as a result on the same day," said Lewandowski.
The study, to be published by the Journal of Information Science and available online as an e-print, looked at the update policies of Google, Yahoo and MSN Live.
Lewandowski monitored the search engines' coverage of 40 pages that were updated daily and 30 pages that were occasionally updated.
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Source: HighBeam Research, Web search engines slow on the update.