105 search results - page 6 / 21 » Normalization and optimization of schema mappings |
160
click to vote
SIGMOD
2007
ACM
15 years 9 months ago
2007
ACM
This paper extends relational processing and optimization to the FISQL/FIRA languages for dynamic schema queries over multidatabases. Dynamic schema queries involve the creation a...
CIKM
2004
Springer
15 years 3 months ago
2004
Springer
We study the representation, derivation and utilization of a special kind of constraints in multidatabase systems. A major challenge is when component database schemas are schemat...
CVPR
2006
IEEE
15 years 11 months ago
2006
IEEE
Given a dense set of imperfect normals obtained by photometric stereo or shape from shading, this paper presents an optimization algorithm which alternately optimizes until conver...
106
click to vote
PVLDB
2008
14 years 9 months ago
2008
Supporting graceful schema evolution represents an unsolved problem for traditional information systems that is further exacerbated in web information systems, such as Wikipedia a...
184
Voted
ICDE
2003
IEEE
15 years 11 months ago
2003
IEEE
Intuitively, data management and data integration tools should be well-suited for exchanging information in a semantically meaningful way. Unfortunately, they suffer from two sign...