Conferences and workshops: IPDPS 2003, Euro-Par 2003, Euro-Par 2004, ICPP 2004, ICCS 2004,Euro-Par 2005, Sarnoff 2007, ISWC 2009, ICCS 2010, Europar2011, Europar 2012, Pervasive Computing 2012

Journals: Software: Practice and Experience (John Wiley & Sons), Journal of Grid Computing (Springer), Future Generation Computer Systems (Elsevier), Distributed Computing (Springer), IEEE Internet Computing, ToPNoC (Transactions on Petri Nets and Other Models of Concurrency, Springer, for a special issue), Information Sciences (Elsevier), Service-oriented Computing and Applications (Springer), Scientific Programming (for a special issue), Pervasive and Mobile Computing Journal (Elsevier), Journal of Parallel and Distributed Computing (Elsevier), Computing -- Archives for Scientific Computing (Springer), Journal of Data and Knowledge Engineering (DKE - Elsevier), WWW Journal (Springer - Special issue), Computers in Industry (Elsevier), IEEE Transactions on Service Computing (TSC), ACM Transactions on Internet Technology (TOIT), IEEE Software, ACM Computing Survey, ACM SIGHIT Record, Journal of Systems and Software (Elsevier), International Journal of Next-Generation Computing,IEEE Security \& Privacy

• The 10th IEEE International Conference on e-Business Engineering (ICEBE 2013), September 11-13, 2013, Coventry, UK
• The IEEE 2nd International Congress on Big Data, June 27-July 2, 2013, Santa Clara Marriott, CA, USA
• The 2013 International Workshop on High Performance Data Intensive Computing (HPDIC2013), In Conjunction with IEEE IPDPS 2013, Boston, Massachusetts, USA May 24, 2013.
• Cooperative Systems in Heterogeneous Environments (COSYS) Track, Track of the 28th ACM Symposium on Applied Computing (SAC 2013), March 18-22, 2013, Coimbra, Portugal


• The 14th International Conference on Information Integration and Web-based Applications & Services, 3-5 December 2012, Bali, Indonesia.


• The 2012 International Workshop on Power and QoS Aware Computing (PQoSCom-F¢12) in conjunction with IEEE Cluster¢12, 24-28-A September, Beijing, China.


• The 9th International Conference on Mobile Web Information Systems (MobiWIS 2012), August 27-29,2012, Niagara Falls, Ontario, Canada


• 2012 International Workshop on High Performance Data Intensive Computing(HPDIC2012) in conjunction with IEEE IPDPS 2012, May 25, 2012, Shanghai, China


• The 2nd International Conference on Cloud Computing and Services Science (CLOSER 2012), 18-21 April, 2012, Porto, Portugal.


• The 4th Asian Conference on Intelligent Information and Database Systems (ACIIDS 2012), March 19-21, 2011, Kaohsiung, Taiwan


• The 9th IEEE-RIVF International Conference on Computing and Communication Technologies (IEEE-RIVF 2012), February 27 - March 01, 2012, HoChiMinh City, Vietnam


• The 5th Workshop on Non-Functional Properties and SLA Management in Service-Oriented Computing (NFPSLAM-SOC'11), Part of ICSOC 2011 - The 9th International Conference on Service Oriented Computing, December 5-8, 2011, Paphos, Cyprus.


• Cooperative Systems in Heterogeneous Environments (COSYS) Track, the 27th ACM Symposium on Applied Computing (SAC 2012) March 25-29, 2012, Trento, Italy


• The 13th International Conference on Information Integration and Web-based Applications & Services, 5 - 7 December 2011, HoChiMinh City, Vietnam


• The 8th International Conference on Mobile Web Information Systems (MobiWIS 2011), September 19-21, 2011, Niagara Falls, Ontario, Canada


• The 3rd Asian Conference on Intelligent Information and Database Systems (ACIIDS 2011), April. 20-22, 2011, Daegu, South Korea


• Performance Assessment and Auditing in Service Computing Workshop 2010, December 7, 2010, San Francisco, California, USA.


• The 4rd Workshop on Non-Functional Properties and SLA Management in Service-Oriented Computing (NFPSLAM-SOC'10),December 1, 2010 , Ayia Napa, Cyprus, co-located with the 8th European Conference on Web Services (ECOWS 2010)


• The 5th European Conference on Smart Sensing and Context (EuroSSC 2010), 14 - 16 November 2010 , Passau, Germany


• The 12th IEEE International Conference on High Performance Computing and Communications (HPCC-2010),September 1-3, 2010, Melbourne, Australia


• The 16th IEEE International Conference on Parallel and Distributed Systems , Dec 8-10, 2010, Shanghai, China


• Fifth International Conference on P2P, Parallel, Grid, Cloud and Internet Computing, November 4-6, 2010, Fukuoka Institute of Technology, Fukuoka, Japan


• The International Conference on Computing and Telecommunication Technologies (IEEE-RIVF 2010), November 01-04, 2010, Hanoi, Vietnam


• The 10th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing (CCGrid 2010), May 17-20, 2010, Melbourne, Victoria, Australia


• The 2nd Asian Conference on Intelligent Information and Database Systems (ACIIDS 2010), 24 - 26 March, 2010, Hue City, Vietnam


• The 3rd Workshop on Non-Functional Properties and SLA Management in Service-Oriented Computing (NFPSLAM-SOC'09),24-26 November, Stockholm, Sweden, co-located with 7th International Conference on Service Oriented Computing (ICSOC 2009)


• The First International Conference on Adaptive and Self-adaptive Systems and Applications (ADAPTIVE09), 15-20 November, 2009 - Athens, Greece


• The First International Workshop on Context, Information And Ontologies (CIAO2009), 1 June, 2009, Heraklion, Greece


• The 5th International Conference on Self-organization and Adaptation of Computing and Communications (SACC 2009) 23-25 March, 2009, Leipzig, Germany


• The IEEE 23rd International Conference on Advanced Information Networking and Applications (AINA 2009),26-29 May, 2009, Bradford, UK.


• The 3rd Workshop on Emerging Web Services Technology(WEWST-2008), 12 November, 2008, Dublin, Ireland.


• The 3rd European Conference on Smart Sensing and Context (EuroSSC 2008), 29-31 October, 2008, Zurich, Switzerland.


• The First International Workshop on Process Management for Highly Dynamic and Pervasive Scenarios (PM4HDPS) 1 September, 2008, Milan, Italy


• The International Conference on Computing and Telecommunication Technologies (IEEE-RIVF)(2006, 2007, 2008, 2009)


• International Workshop on Advanced Computing and Applications (ACOMP), ACOMP2007, ACOMP2008, ACOMP2010,

• Track chair, Service Oriented Pervasive Computing, The 4th International Conference on Emerging Ubiquitous Systems and Pervasive Networks October 21-24, 2013, Niagara Falls, Ontario, Canada
• Current program vice chair, 10th International Conference on Mobile Web Information Systems (MobiWIS 2013), August 26-28 2013, Cyprus
• Co-chair, , The 5th International Workshop on Personalization in Cloud and Service Computing (PCS 2011), In conjunction with The 12th International Conference on Web Information System Engineering (WISE 2011), October 13-14, 2011, Sydney, Australia


• Co-chair, The 1st International Workshop on Emails in e-Commerce and Enterprise Context (E3C)held at the 11th IEEE Conference on Commerce and Enterprise Computing (CEC 2009), 20 July, 2009, Vienna, Austria


• Co-chair, the 7th IEEE International Workshop on Distributed and Mobile Collaboration (DMC 2009), Held at the 18th IEEE International Workshops on Enabling Technologies: Infrastructures for Collaborative Enterprises (WETICE-2009), June 29 - July 1, 2009, Groningen, The Netherlands


• Vice chair, Topic 2: Performance Prediction and Evaluation, Euro-Par 2009


• Co-chair, the 6th IEEE International Workshop on Distributed and Mobile Collaboration (DMC 2008), Held at the 17th IEEE International Workshops on Enabling Technologies: Infrastructures for Collaborative Enterprises (WETICE-2008), June 23-25, 2008, Rome, Italy.

• Special Issue on Collaboration Services: Methodologies, Architectures, Technologies and Protocols

• Workshop on Computational Science and Engineering (CSE09), 8-9 Jan, 2009, Rust, Austria


• ISoLA 2008 Special Tracks on Model-Driven SOA, 3rd International Symposium on Leveraging Applications of Formal Methods, Verification and Validation, 13-15 October, 2008, Porto Sani (Kassandra, Chalkidiki), Greece