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ICIAR
2010
Springer
15 years 10 months ago
Segmentation Based Noise Variance Estimation from Background MRI Data
Accurate and precise estimation of the noise variance is often of key importance as an input parameter for posterior image processing tasks. In MR images, background data is well s...
Jeny Rajan, Dirk Poot, Jaber Juntu, Jan Sijbers
EATIS
2007
ACM
15 years 10 months ago
Analysing and enhancing business processes and IT-systems for mobile workforce automation: a framework approach
Mobile B2E-applications (business-to-employee) can add significant value to a company's business, when large workforce divisions are involved in the execution of certain busi...
Volker Gruhn, André Köhler
APN
2006
Springer
15 years 10 months ago
Nested Nets for Adaptive Systems
We consider nested nets, i.e. Petri nets in which tokens can be Petri nets themselves. We study value semantics of nested nets rather than reference semantics, and apply nested ne...
Kees M. van Hee, Irina A. Lomazova, Olivia Oanea, ...
KDD
2000
ACM
142views Data Mining» more  KDD 2000»
15 years 10 months ago
Automating exploratory data analysis for efficient data mining
Having access to large data sets for the purpose of predictive data mining does not guarantee good models, even when the size of the training data is virtually unlimited. Instead,...
Jonathan D. Becher, Pavel Berkhin, Edmund Freeman
DOOD
1995
Springer
128views Database» more  DOOD 1995»
15 years 10 months ago
Authorization Analysis of Queries in Object-Oriented Databases
Abstract. A simple model for method-based authorization is defined and an algorithm is presented for testing in compile-time whether a given database schema violates authorization...
Hiroyuki Seki, Yasunori Ishihara, Minoru Ito