1- Introduction
+
'''1- Introduction'''
    
In the context of Data-Science (https://en.wikipedia.org/wiki/Data_science + mettre une reference sur un bouquin académique)
 
In the context of Data-Science (https://en.wikipedia.org/wiki/Data_science + mettre une reference sur un bouquin académique)
 
large scale systems must address numerous issues, among them the issues of provenance, analysis, preservation. Computing models are also numerous, among them the cloud family (private, public, hybrid), the cluster family (including the federation of clusters that we call grids), and soon computing models for the platforms of the Internet of Things (IoT).  
 
large scale systems must address numerous issues, among them the issues of provenance, analysis, preservation. Computing models are also numerous, among them the cloud family (private, public, hybrid), the cluster family (including the federation of clusters that we call grids), and soon computing models for the platforms of the Internet of Things (IoT).  
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Backtrace:
#0 /home/bigdata/includes/diff/DairikiDiff.php(544): DiffEngine->diag()
#1 /home/bigdata/includes/diff/DairikiDiff.php(344): DiffEngine->compareSeq()
#2 /home/bigdata/includes/diff/DairikiDiff.php(227): DiffEngine->diffLocal()
#3 /home/bigdata/includes/diff/DairikiDiff.php(721): DiffEngine->diff()
#4 /home/bigdata/includes/diff/DairikiDiff.php(859): Diff->__construct()
#5 /home/bigdata/includes/diff/DairikiDiff.php(980): MappedDiff->__construct()
#6 /home/bigdata/includes/diff/TableDiffFormatter.php(194): WordLevelDiff->__construct()
#7 /home/bigdata/includes/diff/DiffFormatter.php(140): TableDiffFormatter->changed()
#8 /home/bigdata/includes/diff/DiffFormatter.php(82): DiffFormatter->block()
#9 /home/bigdata/includes/diff/DifferenceEngine.php(881): DiffFormatter->format()
#10 /home/bigdata/includes/diff/DifferenceEngine.php(797): DifferenceEngine->generateTextDiffBody()
#11 /home/bigdata/includes/diff/DifferenceEngine.php(728): DifferenceEngine->generateContentDiffBody()
#12 /home/bigdata/includes/diff/DifferenceEngine.php(662): DifferenceEngine->getDiffBody()
#13 /home/bigdata/includes/diff/DifferenceEngine.php(632): DifferenceEngine->getDiff()
#14 /home/bigdata/includes/diff/DifferenceEngine.php(453): DifferenceEngine->showDiff()
#15 /home/bigdata/includes/page/Article.php(797): DifferenceEngine->showDiffPage()
#16 /home/bigdata/includes/page/Article.php(508): Article->showDiffPage()
#17 /home/bigdata/includes/actions/ViewAction.php(44): Article->view()
#18 /home/bigdata/includes/MediaWiki.php(490): ViewAction->show()
#19 /home/bigdata/includes/MediaWiki.php(287): MediaWiki->performAction()
#20 /home/bigdata/includes/MediaWiki.php(714): MediaWiki->performRequest()
#21 /home/bigdata/includes/MediaWiki.php(508): MediaWiki->main()
#22 /home/bigdata/index.php(41): MediaWiki->run()
#23 {main}