The chosen keywords have a twofold purpose.
First, they are used to quickly as- sociate employees with recurring skill terms.
These keywords can also be used in future work for clustering similar documents into topic areas.
Finally, knowledge taxonomy can be constructed from the mined keywords such that an appropriate query relevance feedback system can be developed that suggests query terms that are related to the query entered by the user.
Details about the role of taxonomies on the development of expertise locator systems are presented in Chapter 8.
Next, we discuss the role that the Web and search engines play in knowledge discovery.