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Technologies for Information Systems Part I (10 points) prof. L. Tanca – June 27th, 2016 Available time: 25 minutes Last Name _________________________________________________________________ First Name ________________________________________________________________ Student ID ________________ Signature_______________________________________ 1) Define the typical operations necessary in the multidimensional data model that is at the basis of data warehouses. 2) Consider these data mining problems: classification and clustering. Define them, discuss the differences between the two problems, and provide an application example for each of them. Technologies for Information Systems Part II (22 points) prof. L. Tanca – June 27th, 2016 Available time: 2h 00m Last Name _________________________________________________________________ First Name ________________________________________________________________ Student ID ________________ Signature_______________________________________ PoliTours is an agency organizing tours in specific cities of Lombard y, relying on a mobile application to promote the tours. A tour is composed of several places of interest to be visited, all located in the same city; each place of interest features a set of landmarks, like monuments or historical buildings. When a user is in a certain city, the PoliTours server delivers to the user’s smartphone an XML document describing the tours available for that city, and the mobile application running on the devic e provides a user -friendly representation of the content of the document. The information system of PoliTours is very primitive: they just keep on their server the collection of XML documents associated with the cities. UniTours is a similar agency, offering comparable services in Piedmont. A…