Complex queries over high speed data streams often need to rely on approximations to keep up with their input. The research community has developed a rich literature on approximat...
Theodore Johnson, S. Muthukrishnan, Irina Rozenbau...
The challenge of monitoring massive amounts of data generated by communication networks has led to the interest in data stream processing. We study streams of edges in massive com...
Abstract. Hierarchical clustering has been proved an effective means for physically organizing large fact tables since it reduces significantly the I/O cost during ad hoc OLAP quer...
Nikos Karayannidis, Timos K. Sellis, Yannis Kouvar...
Type-directed programming is an important idiom for software design. In type-directed programming the behavior of programs is guided by the type structure of data. It makes it pos...
Pervasive computing environments have traditionally used distributed sensors to gather user context. EPC (Electronic Product Code) information extracted from RFID tags could addit...