140 search results - page 20 / 28 » Redundant Relations in Relational Databases: A Model Theoret... |
ICDT
2010
ACM
15 years 4 months ago
2010
ACM
We examine schema mappings from a type-theoretic perspective and aim to facilitate and formalize the reuse of mappings. Starting with the mapping language of Clio, we present a ty...
101
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RTDB
2001
15 years 1 months ago
2001
A database system contains base data items which record and model a physical, real world environment. For better decision support, base data items are summarized and correlated to...
102
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SOFSEM
2010
Springer
15 years 8 months ago
2010
Springer
Regret minimization has proven to be a very powerful tool in both computational learning theory and online algorithms. Regret minimization algorithms can guarantee, for a single de...
ACSC
2004
IEEE
15 years 3 months ago
2004
IEEE
Graph drawing is an important area of information visualization which concerns itself with the visualization of relational data structures. Relational data like networks, hierarch...
101
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GI
2004
Springer
15 years 5 months ago
2004
Springer
: We present several quality criteria for skills management initiatives based on the competence-performance approach [Kor97]. The criteria help to measure reliability and validity ...