Incomplete information arises naturally in numerous data management applications. Recently, several researchers have studied query processing in the context of incomplete informat...
We introduce the problem of query decomposition, where we are given a query and a document retrieval system, and we want to produce a small set of queries whose union of resulting...
Francesco Bonchi, Carlos Castillo, Debora Donato, ...
Materialized views defined over distributed data sources are a well recognized technology for modern applications. Stateof-the-art incremental view maintenance requires O(n2 ) or ...
Many applicationsstore data items for a pre-determined, finite length of time. Examples include slidingwindows over on-line data streams, where old data are dropped as the window...
We describe the DAIMON system for data integration of nomadic data. DAIMON is based on an extension of the mediator-wrapper architecture, where each node is a mediator of its own ...
Constantinos V. Katsaros, Ioannis L. Niarhos, Vasi...