Grid and pervasive computing workshops : international workshops, S3E, HWTS, doctoral colloquium : held in conjunction with GPC 2011 : Oulu, Finland, May 11-13, 2011 : revised selected papers : international workshop on health and well-being technologies and services for elderly : 1st international workshop on self-managing solutions for smart environments : 6th international conference on grid and pervasive computing : May 2011, Oulu, Finland.