Some previous (most recent) contributions:

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Professional Associations Liaison for IE'25 in Germany.​

Professional Associations Liaison for IE'24 in Slovenia.

General Chair for IE'23, held at MDX-Mauritius.

Co-General Chair for IE'21, held at MDX-Dubai.

Co-General Chair for IE'18, held at Sapienza, Universita di Roma.

General Chair for IE'16, held at Middlesex University London.

Keynotes chair for the 11th International Conference on Intelligent Environments (IE15), Prague, 13-17 of July, 2015

Workshops co-chair for the 10th International Conference on Intelligent Environments (IE14), Shanghai, 30th of June - 4th of July, 2014.

Program co-Chair for the 4th International Conference on Ambient Intelligence (AmI13), Dublin (Ireland), December, 2013.

Program co-Chair for the 9th International Conference on Intelligent Environments (IE13), Athens (Greece), July 16-19, 2013.

General co-Chair 3rd EvAAL Competition (EvAAL'13): Evaluating AAL Systems through Competitive Benchmarking. Madrid-Valencia, July 2013.

Program co-Chair for the 8th International Conference on Intelligent Environments (IE12), Guanajuato (México), June 26-29, 2012.

Co-Chair for the 2nd Workshop on Space, Time and Ambient Intelligence, Barcelona, Spain, July 19-22, 2011.

PC member of the IEAI (Integrated and Embedded AI) Track of IJCAI 2011, Barcelona, Spain, July 19-22, 2011.

Program co-Chair for the 5th International Conference on Pervasive Computing Technologies for Healthcare, Dublin, Rep. of Ireland. May, 2011.

Program co-Chair for the 7th International Conference on Intelligent Environments (IE 11), 6-8 July 2011, Nottingham, United Kingdom.

Co-chair for the 6th International Workshop on Artificial Intelligent Techniques for Ambient Intelligence , co-located with IE11 (see above).

Steering Committee member for the 2nd International Symposium on Ambient Intelligence (ISAmI 2011), April, 2011 - Salamanca - Spain.

Co-chair for the 1st International Workshop on the Reliability of Intelligent Environments, co-located with ISAmI11, Salamanca, Spain.

Workshops Co-Chair for the 6th International Conference on Intelligent Environments (IE 10), 19-21 July 2010, Kuala Lumpur, Malaysia.

Co-chair for the 5th International Workshop on Artificial Intelligent Techniques for Ambient Intelligence (AITAmI'10), 19 July 2010, Kuala Lumpur, Malaysia. Event organized in collaboration with Professor Diane J. Cook.

Co-chair for the 2nd International Workshop on Intelligent Environments Supporting Healthcare and Well-being (WISHWell'10), July 19th 2010, Kuala Lumpur, Malaysia. Co organized with John O'Donoghue (UCC).

Scientific Committee co-Chair 1st International Symposium on Ambient Intelligence (ISAmI 2010), 16th-18th June, 2010 - Guimarães - Portugal.