In this paper, we argue that preference-aware query processing needs to be pushed closer to the DBMS. We introduce a preference-aware relational data model that extends database tuples with preferences and an extended algebra that captures the essence ...
When users access data-oriented applications, they aim to obtain useful information. Sometimes, however, the user needs to reformulate the submitted queries several times and go through many answers until a satisfactory set of answers is achieved. In ...
The Web has recently been changing more and more to what is called the Social Semantic Web. As a consequence, the ranking of search results no longer depends solely on the structure of the interconnections among Web pages. In this ...
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