We present a multi-dimensional database model, which we believe can serve as a conceptual model for On-Line Analytical Processing (OLAP)-based applications. Apart from providing t...
Many sources on the Internet and elsewhere rank the objects in query results according to how well these objects match the original query. For example, a real-estate agent might r...
Scheduling query execution plans is a particularly complex problem in hierarchical parallel systems, where each site consists of a collection of local time-shared (e.g., CPU(s) or...
In semistructured databases there is no schema fixed in advance. To provide the benefits of a schema in such environments, we introduce DataGuides: concise and accurate structural...
The goal of a mediator system is to provide users a uniform interface to the multitude of information sources. To translate user queries, given in a mediated schema, to queries on...
The enhanced pay-per-view (EPPV) model for providing continuous-media-on-demand(CMOD) services associates with each continuous media clip a display frequency that dependson the cl...
Data is often stored in summarized form, as a histogram of aggregates (COUNTs, SUMs, or AVeraGes) over speci ed ranges. We study how to estimate the original detail data from the ...
Christos Faloutsos, H. V. Jagadish, Nikolaos Sidir...
In this paper, we present and evaluate alternative techniques to effect the use of location-independent identiļ¬ers in distributed database systems. Location-independent identiļ¬...
In recentyears,databaseresearchandproduct developmentactivities havefocusedonsupport for non-traditional data types, such astext or multi-media documents.This paper describes an a...