A cost-continuity model for web search
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In this paper we present a set of techniques for grouping and aggregating queries and search results, in the context of an Internet “search engine.'' (1) In the case of the initial grouping of the queries, we consider the Fuzzy c-Means1 and Kohonen SOM2 techniques. It is proposed that FCM may be more adequate than k-Means3 for the grouping of certain data types. We evaluate how we can use FCM to calculate the fuzzy membership grades for a set of Web queries and their corresponding results. (2) In the case of the aggregation of data from different information sources (the clustering techniques), we will consider weighted ordered weighted averaging (WOWA).4 WOWA is used to choose the most adequate cluster and to identify the historical query in that cluster, which is most similar to a new query. We will see that the WOWA operator offers a wide flexibility for data processing. © 2008 Wiley Periodicals, Inc.