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OODBS
2000
147views Database» more  OODBS 2000»
15 years 5 months ago
Towards a Unified Query-by-Example (UQBE): UML as a Basis for a Generic Graphical Query Language
A generic graphical query language for ODMG-compliant object databases is proposed, based on the ideas of Query-By-Example, and using UML-like diagrams as schema notation. Ease of ...
Miguel Ángel Sicilia Urbán, Elena Ga...
IQIS
2007
ACM
15 years 3 months ago
On the performance of one-to-many data transformations
Relational Database Systems often support activities like data warehousing, cleaning and integration. All these activities require performing some sort of data transformations. Si...
Paulo J. F. Carreira, Helena Galhardas, Joã...
KDID
2004
134views Database» more  KDID 2004»
15 years 3 months ago
Theoretical Bounds on the Size of Condensed Representations
Abstract. Recent studies demonstrate the usefulness of condensed representations as a semantic compression technique for the frequent itemsets. Especially in inductive databases, c...
Nele Dexters, Toon Calders
IADIS
2003
15 years 3 months ago
Pandora Case Tool: Triggers Generating for Cardinality Constraints in RDBMS
The cardinality constraint is one of the most important constraints that can be established in a conceptual model. Nevertheless, not all CASE tools for developing database support...
Harith T. Al-Jumaily, Dolores Cuadra, Paloma Mart&...
NIPS
2003
15 years 3 months ago
When Does Non-Negative Matrix Factorization Give a Correct Decomposition into Parts?
We interpret non-negative matrix factorization geometrically, as the problem of finding a simplicial cone which contains a cloud of data points and which is contained in the posi...
David L. Donoho, Victoria Stodden