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PAKDD
2009
ACM
124views Data Mining» more  PAKDD 2009»
15 years 11 months ago
Dynamic Exponential Family Matrix Factorization
Abstract. We propose a new approach to modeling time-varying relational data such as e-mail transactions based on a dynamic extension of matrix factorization. To estimate effectiv...
Kohei Hayashi, Junichiro Hirayama, Shin Ishii
SIGMOD
1990
ACM
122views Database» more  SIGMOD 1990»
15 years 8 months ago
Access Support in Object Bases
In this work access support relataons are introduced as a means for optlmizmg query processing m object-oriented database systems The general idea 1s to mamtam redundant separate ...
Alfons Kemper, Guido Moerkotte
WWW
2003
ACM
16 years 5 months ago
D2R MAP - A Database to RDF Mapping Language
The vision of the Semantic Web is to give data on the web a welldefined meaning by representing it in RDF and linking it to commonly accepted ontologies. Most formatted data today...
Christian Bizer
DBPL
2003
Springer
120views Database» more  DBPL 2003»
15 years 9 months ago
A Unifying Semantics for Active Databases Using Non-Markovian Theories of Actions
Over the last fifteen years, database management systems (DBMSs) have been enhanced by the addition of rule-based programming to obtain active DBMSs. One of the greatest challeng...
Iluju Kiringa, Raymond Reiter
ICDE
1993
IEEE
158views Database» more  ICDE 1993»
15 years 8 months ago
Unification of Temporal Data Models
To add time su port to the relational model, both first normal form (fNF and non-INF appmches have maining within 1NF when time support is added may introduce data redundancy. The...
Christian S. Jensen, Michael D. Soo, Richard T. Sn...