576 search results - page 18 / 116 » Optimizing Information Agents by Selectively Materializing D... |
AH
2000
Springer
14 years 12 days ago
2000
Springer
The paper investigates the use of computational intelligence for adaptive lesson presentation in a Web-based learning environment. A specialized connectionist architecture is devel...
ICPR
2006
IEEE
14 years 9 months ago
2006
IEEE
Band ratios have many useful applications in hyperspectral image analysis. While optimal ratios have been chosen empirically in previous research, we propose a principled algorith...
CRV
2009
IEEE
14 years 2 months ago
2009
IEEE
The problem of online sampling of data, can be seen as a generalization of the classical secretary problem. The goal is to maximize the probability of picking the k highest scorin...
DOLAP
2005
ACM
13 years 10 months ago
2005
ACM
Materialized views are nowadays commonly used in the data warehouse environment. Materialized views need to be updated when data sources change. Since the update of the views may ...
VLDB
1997
ACM
14 years 6 days ago
1997
ACM
Data is often stored in summarized form, as a histogram of aggregates (COUNTs, SUMs, or AVeraGes) over speci ed ranges. We study how to estimate the original detail data from the ...