Defect categorization: making use of a decade of widely varying historical data. - Carolyn B. Seaman; Forrest Shull; Myrna Regardie; Denis Elbert; Raimund L. Feldmann; Yuepu Guo; Sally Godfrey (ESEM, 2008)

An approach for detecting deviations in daily routine for long-term behavior analysis. - Denis Elbert; Holger Storf; Michael Eisenbarth; Özgür Ünalan; Mario Schmitt (PervasiveHealth, 2011)