20024 search results - page 206 / 4005 » Database Management Systems |
131
Voted
ICWS
2009
IEEE
16 years 19 days ago
2009
IEEE
Distributed systems increasingly span organizational boundaries and, with this, system and service management domains. Web services are the primary means of exposing services to c...
126
Voted
PODS
2010
ACM
15 years 3 months ago
2010
ACM
We study functional and multivalued dependencies over SQL tables with NOT NULL constraints. Under a no-information interpretation of null values we develop tools for reasoning. We...
211
Voted
SIGMOD
2009
ACM
16 years 3 months ago
2009
ACM
The past few decades have witnessed a chronic and widening imbalance among processor bandwidth, disk capacity, and access speed of disk. According to Amdhal's law, the perfor...
159
Voted
ICDT
2010
ACM
15 years 5 months ago
2010
ACM
When a query is evaluated under bag semantics, each answer is returned as many times as it has derivations. Bag semantics has long been recognized as important, especially when ag...
129
Voted
BTW
2007
Springer
15 years 9 months ago
2007
Springer
: Efficient information sharing is very important for emergency and rescue operations. These operations often have to be performed in environments where no communication infrastruc...