Special issue on best papers of VLDB 2013

VLDB is a premier annual international forum for data management, and it targets database researchers, users, vendors, and application developers. Each year the conference covers current issues in data management and database systems, which remain key technological cornerstones of emerging applications of the twenty-first century. VLDB 2013 took place at the picturesque town of Riva del Garda in Italy. We received a total of 559 research paper submissions, and of these 127 submissions were accepted