Physical design for object-oriented databases is still in its infancy. Implementation decisions often intrude into the conceptual design (such as inverse links and object decompos...
An ontology is an explicit specification of shared conceptualization. The Web Ontology Language (OWL) is a family of knowledge representation languages for authoring ontologies, a...
: Given two testable properties P1 and P2, under what conditions are the union, intersection or set-difference of these two properties also testable? We initiate a systematic study...
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, ...
We consider the problem of indexing high-dimensional data for answering (approximate) similarity-search queries. Similarity indexes prove to be important in a wide variety of sett...