This editorial of the special issue “Representing, Processing, and Learning Preferences:
Theoretical and Practical Challenges” surveys past and ongoing research on preferences in …

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During the last decades, data management and storage have become increasingly
distributed. Advanced query operators, such as skyline queries, are necessary in order to …

The skyline operator returns from a set of multi-dimensional objects a subset of superior
objects that are not dominated by others. This operation is considered very important in multi …

Uncertain data have already widely existed in many practical applications recently, such as
sensor networks, RFID networks, location-based services, and mobile object management …

Living in the Information Age allows almost everyone have access to a large amount of
information and options to choose from in order to fulfill their needs. In many cases, the …

The well-known benefits of cloud computing have spurred the popularity of database service
outsourcing, where one can resort to the cloud to conveniently store and query databases …

The top-k dominating (TKD) query returns the k objects that dominate the maximum number
of objects in a given dataset. It combines the advantages of skyline and top-k queries, and …

Skyline queries are a well-established technique for database query personalization and
are widely acclaimed for their intuitive query formulation mechanisms. However, when …

Data have significant economic or social value in many application fields including science,
business, governance, etc. This naturally leads to the emergence of many data markets such …