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Web-based Learning Solutions for Communities of Practice

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the describing more than one cluster in a data set<br />

(the problem is much worse when some <strong>of</strong> the<br />

clusters overlap)<br />

Data Mining: is the process <strong>of</strong> autonomously<br />

extracting useful in<strong>for</strong>mation or knowledge (“actionable<br />

assets”) from large data stores or sets.<br />

Data mining can be per<strong>for</strong>med on a variety <strong>of</strong> data<br />

stores, including the World Wide <strong>Web</strong>, relational<br />

databases, transactional databases, internal legacy<br />

systems, pdf documents, and data<br />

94<br />

Mining Unnoticed Knowledge in Collaboration Support Systems

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