177 search results - page 6 / 36 » pvldb 2010 |
84
Voted
PVLDB
2010
14 years 8 months ago
2010
Shortest path computation is one of the most common queries in location-based services that involve transportation networks. Motivated by scalability challenges faced in the mobil...
71
Voted
PVLDB
2010
14 years 8 months ago
2010
Virtual views are a mechanism that facilitates re-use and makes queries easier to express. However the use of iterative view definitions makes very simple query evaluation and an...
PVLDB
2010
14 years 8 months ago
2010
Today’s data integration systems must be flexible enough to support the typical iterative and incremental process of integration, and may need to scale to hundreds of data sour...
PVLDB
2010
14 years 8 months ago
2010
We live in the Information Era, with access to a huge amount of information from a variety of data sources. However, data sources are of different qualities, often providing con...
PVLDB
2010
14 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...