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SIGMOD
1987
ACM
15 years 1 months ago
1987
ACM
In this paper we discuss extensions to the conventional relatronal algebra to support transaction time We show that these extensions are applicable to hrstorlcal algebras that sup...
73
Voted
ECTEL
2008
Springer
14 years 12 months ago
2008
Springer
Interaction analysis can provide information directly to learners and teachers in order to assess and self-regulate their ongoing activity. Omega+ is a generic CSCL system that use...
109
Voted
CORR
2008
Springer
14 years 10 months ago
2008
Springer
Classic algorithms for sequential pattern discovery, return all frequent sequences present in a database. Since, in general, only a few ones are interesting from a user's poin...
QUACON
2009
Springer
15 years 4 months ago
2009
Springer
Much research on context quality in context-aware systems divides into two strands: (1) the qualitative identi cation of quality measures and (2) the use of uncertain reasoning tec...
124
Voted
HASE
1998
IEEE
15 years 2 months ago
1998
IEEE
: A middleware architecture named ROAFTS (Real-time Object-oriented Adaptive Fault Tolerance Support) is presented. ROAFTS is designed to support adaptive fault-tolerant execution ...