265 search results - page 8 / 53 » Tree-width and functional dependencies in databases |
PVLDB
2010
13 years 6 months ago
2010
The recent literature has provided a solid theoretical foundation for the use of schema mappings in data-exchange applications. Following this formalization, new algorithms have b...
ESOP
2000
Springer
13 years 11 months ago
2000
Springer
Abstract. Type classes in Haskell allow programmers to define functions that can be used on a set of different types, with a potentially different implementation in each case. For ...
ICDE
2010
IEEE
14 years 7 months ago
2010
IEEE
Many web databases can be seen as providing partial and overlapping information about entities in the world. To answer queries effectively, we need to integrate the information abo...
SARA
2005
Springer
14 years 1 months ago
2005
Springer
A pattern database (PDB) is a heuristic function in a form of a lookup table which stores the cost of optimal solutions for instances of subproblems. bproblems are generated by abs...
RECSYS
2009
ACM
14 years 2 months ago
2009
ACM
A functional dependency is a logical relationship amongst the attributes that define a table of data. Specifically, a functional dependency holds when the values of a subset of ...