Definition
Personalizing or recommending OLAP queries aims at making the OLAP user experience less disorientating when navigating huge amounts of multidimensional data (also called cubes). Such approaches allow coping with too many or too few query results, or suggesting new queries to pursue the navigation. Personalization allows adding preferences to a query for filtering out irrelevant results or ranking the results to focus on the most relevant first. It also allows turning selection predicates (hard constraints) into preferences (soft constraints) to favor nonempty answers. On the other end, recommendation allows to leverage the cube instance and/or past navigations on it to complement the current query result.
The general problem can be formally defined by given a sequence of queries S = <q1, …, qc> (a session from now on) over an instance I of a cube schema C, a user profile P(consisting of ordered multidimensional objects), and a set of past sessions L (a log from now on),...
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Aligon J, Similarity based recommendation of OLAP sessions, doctoral dissertation, Université François Rabelais Tours, France; 2013.
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Marcel, P. (2018). OLAP Personalization and Recommendation. In: Liu, L., Özsu, M.T. (eds) Encyclopedia of Database Systems. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-8265-9_3191
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DOI: https://doi.org/10.1007/978-1-4614-8265-9_3191
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