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<p>Electronic commerce lets people purchase goods and exchange information on business transactions on-line. Therefore one of the main challenges for the designers of the e-commerce infrastructures is the information sharing, retrieving data located in different sources thus obtaining an integrated view to overcome any contradiction or redundancy. Virtual Catalogs synthesize this approach as they are conceived as instruments to dynamically retrieve information from multiple catalogs and present product data in a unified manner, without directly storing product data from catalogs. In this article the authors present the MOMIS (Mediator environment for Multiple Information Sources) project, a mediator-based system for information extraction and integration from both structured and semistructured data sources.</p>
e-commerce, information retrieval

F. Guerra, S. Bergamaschi, M. Vincini, I. Benetti and D. Beneventano, "An Information Integration Framework for E-Commerce," in IEEE Intelligent Systems, vol. 17, no. , pp. 18-25, 2002.
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