Developing Customer Vulnerability Models Using Data Mining Techniques Evangelos Simoudis George John Randy Kerber Brian Livezey Peter Miller Lockheed AI Center 3251 Hanover Street Palo Alto, CA 94304 {simoudis, gjohn, kerber, livezey, pmiller}@aic.lockheed.com Data mining is the process of finding previously unknown and potentially interesting patterns and relationships in large databases. Consumer vulnerability analysis refers to the process of mining various types of consumer data to extract models, called vulnerability models, that predict consumer loyalty level to a particular product, e.g., orange juice, or class of products, e.g., frozen fruit juices. In this paper we use Recon*, a data mining system, to develop vulnerability models for frozen orange juice from a database containing the supermarket purchases of 15,000 households over a three-year period. Recon is a trademark and service mark of Lockheed-Martin Corporation. Citation: International Symposium on Intelligent Data Analysis (IDA-95), August 1995, Baden-Baden, Germany.