432 search results - page 57 / 87 » Quality Metrics in Learning Objects |
VLDB
1990
ACM
14 years 22 days ago
1990
ACM
A probabilistic learning model for vague queries and missing or imprecise information in databases is described. Instead of retrieving only a set of answers, our approach yields a...
VISSYM
2007
13 years 11 months ago
2007
Density maps allow for visually rendering density differences, usually mapping density values to a grey or color scale. The paper analyzes the drawbacks arising from the commonly ...
CISS
2008
IEEE
13 years 10 months ago
2008
IEEE
Abstract--This paper proposes client-centric fractional frequency reuse (CC-FFR) techniques for interference mitigation in OFDMA-based cellular wireless networks. In this framework...
INFORMATICALT
2006
13 years 8 months ago
2006
In this paper, a digital watermarking algorithm for copyright protection based on the concept of embed digital watermark and modifying frequency coefficients in discrete wavelet tr...
TEC
2010
13 years 3 months ago
2010
In some expensive multiobjective optimization problems, several function evaluations can be carried out at one time. Therefore, it is very desirable to develop methods which can g...