Conference on information and knowledge management and co-located workshops : CIKM'11, proceedings of the 2011 ACM international conference ; BooksOnline'11, CIR'11, CloudDB'11, DESIRE'11, DETECT'11, DOLAP'11, DTMBIO'11, ESAIR'11, LSDS-IR'11, MedEx'11, MIXHS'11, PaIR'11, PIKM'11, SMER'11, and SMUC'11 ; Glasgow, Scotland, UK, October 24-28, 2011 (ACM - Association for Computing Machinery, 2011)