World-set algebra is a variable-free query language for uncertain databases. It constitutes the core of the query language implemented in MayBMS, an uncertain database system. Thi...
This article proposes a core query algebra for probabilistic databases. In essence, this core is part of the query languages of most probabilistic database systems proposed so far...
Reflective Relational Machines were introduced by S. Abiteboul, C. Papadimitriou and V. Vianu in 1994, as variations of Turing machines which are suitable for the computation of ...
Flavio Antonio Ferrarotti, Jose Maria Turull Torre...
—A method for secure query processing in mobile databases has been presented in this paper. Mobile devices send queries to the server via point-to-point channels. The mobile data...
We consider the problem of selecting views and indexes that minimize the evaluation costs of the important queries under an upper bound on the disk space available for storing the ...
Maxim Kormilitsin, Rada Chirkova, Yahya Fathi, Mat...