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AH
2000
Springer
15 years 11 months ago
ACE - Adaptive Courseware Environment
: The Adaptive Courseware Environment (ACE) is a WWW-based tutoring framework which combines methods of knowledge representation, instructional planning, and adaptive media generat...
Marcus Specht
ICDT
1999
ACM
97views Database» more  ICDT 1999»
15 years 11 months ago
Optimizing Large Join Queries in Mediation Systems
In data integration systems, queries posed to a mediator need to be translated into a sequence of queries to the underlying data sources. In a heterogeneous environment, with sour...
Ramana Yerneni, Chen Li, Jeffrey D. Ullman, Hector...
ALT
1998
Springer
15 years 11 months ago
Predictive Learning Models for Concept Drift
Concept drift means that the concept about which data is obtained may shift from time to time, each time after some minimum permanence. Except for this minimum permanence, the con...
John Case, Sanjay Jain, Susanne Kaufmann, Arun Sha...
CIKM
1997
Springer
15 years 11 months ago
Block Addressing Indices for Approximate Text Retrieval
Although the issue of approximate text retrieval is gaining importance in the last years, it is currently addressed by only a few indexing schemes. To reduce space requirements, t...
Ricardo A. Baeza-Yates, Gonzalo Navarro
ICALP
1994
Springer
15 years 10 months ago
On the Cost of Recomputing: Tight Bounds on Pebbling with Faults
We introduce a formal framework to study the time and space complexity of computing with faulty memory. For the fault-free case, time and space complexities were studied using the...
Yonatan Aumann, Judit Bar-Ilan, Uriel Feige