1000 search results - page 58 / 200 » Provenance for Aggregate Queries |
ICDE
2009
IEEE
14 years 4 months ago
2009
IEEE
— A paramount challenge in probabilistic databases is the scalable computation of confidences of tuples in query results. This paper introduces an efficient secondary-storage o...
CCCG
2010
13 years 11 months ago
2010
A set of n colored objects (points/hyperboxes) lie in IRd . Each object has a weight associated with it. Given a query orthogonal range q, for each distinct color c of the objects...
EDBTW
2006
Springer
14 years 1 months ago
2006
Springer
Geospatial image data obtained by satellites and aircraft are increasingly important to a wide range of applications, such as disaster management, climatology, and environmental m...
ICEBE
2005
IEEE
14 years 3 months ago
2005
IEEE
Over a traditional Database Management System (DBMS), the answer to an aggregate query is usually much smaller than the answer to a similar nonaggregate query. Therefore, we call ...
PVLDB
2010
13 years 8 months ago
2010
This paper addresses the problem of explaining missing answers in queries that include selection, projection, join, union, aggregation and grouping (SPJUA). Explaining missing ans...