Data Mining and Knowledge Discovery Handbook, 2 Edition part 126. Knowledge Discovery demonstrates intelligent computing at its best, and is the most desirable and interesting end-product of Information Technology. To be able to discover and to extract knowledge from data is a task that many researchers and practitioners are endeavoring to accomplish. There is a lot of hidden knowledge waiting to be discovered – this is the challenge created by today’s abundance of data. Data Mining and Knowledge Discovery Handbook, 2nd Edition organizes the most current concepts, theories, standards, methodologies, trends, challenges and applications of data mining (DM) and knowledge discovery. | 1230 Oded Maimón and Abel Browarnik Fig. . NHECD model. NHECD implementation NHECD is built around Documentum 11 an enterprise content management system ECM . Documentum acts as a central repository for documents . unstructured data metadata semi structured to structured data mostly in XML and extracted information mostly structured tabular data . NHECD assumes that all target scientific papers to be included in the repository are in Adobe PDF format. A review of several websites hosting scientific papers shows that this is a safe choice. If other formats are found the crawler can be instructed to convert the format found to PDF almost seamlessly. Taxonomies Each taxonomy deals with a certain aspect of the Nanotox domain. They were built by teams of domain experts and information management experts. Taxonomies are not an expected output of NHECD. Yet they are essential to the NHECD process. Hence it was one of the initial steps in NHECD implementation. The taxonomies are Following are the taxonomies describing the subject commercial NP characterization . Crawling The process of automatically obtaining scientific papers and data about the paper such as the name of the author or authors the publication date the name of the journal keywords abstract 11 http products family 64 NHECD - Nano Health and Environmental Commented Database 1231 rating NHECD Fig. . NHECD process. Wilmfc EKEBNWHffl o Marante Fig. . Commercial characterization of NP. gaEidii p tr F w ei Me 1232 Oded Maimón and Abel Browarnik Table . Taxonomies. Subject Taxonomies animal model animal gender Species experimental exposure parameters mode of exposure Metabolism Excretion Distribution NP exposure protocol effecting agents standard test protocol NP chemical characterization NP chemical composition core impurities coat impurities coat chemical composition NP carrier solubility commercial NP characterization .
