FATOS
XHAFA,
PhD
Associate Professor -- Professor Titular d'Universitat
Department of
Languages & Informatics
Systems
Technical University of
Catalonia,
Barcelona, Spain.
|
Papers
in Refereed International Journals
|
[43] Xhafa, F., Paniagua, C., Barolli, L. and Caballé, S. A Parallel Grid-based Implementation for Real Time Processing of
Event Log Data in Collaborative Applications, Int. J. Web and Grid Services, IJWGS, vol. 6, issue 1, 2010. To appear
[42] V. Kolici, K. Matsuo, L. Barolli, F. Xhafa, A. Durresi, R. Miho: Application of a JXTA-Overlay P2P System for End-Device
Control. Multimedia Tools and Applications, Springer. To appear
[41] Arjan Durresi, Mimoza Durresi, Leonard Barolli, Fatos Xhafa: MPLS Traffic Engineering for Multimedia on Satellite
Networks, Journal of Multimedia Networking and Applications
Published
[40] Fatos Xhafa, Ajith Abraham. Computational models and heuristic methods for Grid scheduling problems
Future Generation Computer Systems, 26 (2010) 608-621. Elsevier
[39] Fatos Xhafa, Leonard Barolli, Santi Caballé, Raul Fernández. Efficient PeerGroup Management in JXTA-Overlay
P2P System for Developing Groupware Tools, Journal of Supercomputing, Springer.
Available Online (DOI 10.1007/s11227-009-0334-1)
[38] Fatos Xhafa Fatos Xhafa, Leonard Barolli, Enric Jaen, Santi Caballé. Evaluation of P2P multimedia clustering
techniques in JXTA-Overlay. Multimedia Systems, Springer. Volume 15, Issue 5 (2009), pp. 283-293 (Published Online)
[37]
Groups' Activity in Collaborative e-Learning. Int. J. Learning Technology, Volume 4, Issue 1/2, 2009
[36] A. Doci, W. Springer and F. Xhafa. Impact of the Dynamic Membership in the Connectivity Graph of the
Wireless Ad hoc Networks. Scalable Computing: Practice and Experience (SCPE), Vol. 10, No. 2, 2009.
[35] Fatos Xhafa, Leonard Barolli, David Martos. A web interface for the HyperSim-G Grid simulation package.
Int. J. Web and Grid Services, Volume 5, Number 1 / 2009, pages: 17 - 29, Inderscience Enterprises Ltd.
[34] J. Anno, L. Barolli, A. Durresi, F. Xhafa, A. Koyama,Performance Evaluation of Two-Fuzzy based Cluster Head
Selection Systems for Wireless Sensor Networks, Mobile Information Systems, Vol. 4, Nº 4 / 2008, 297-312.
[33] Keita Matsuo, Leonard Barolli, Fatos Xhafa, Akio Koyama, Arjan Durresi. New Functions for Stimulating Learners
Motivation in a Web-based E-learning System International Journal of Distance Education Technologies, iDEA GROUP
PUB. ISSN:1539-3100, JDET, Vol. 6, No. 4. 2008
[32] Leonard Barolli, Fatos Xhafa, Akio Koyama, Arjan Durresi. An Intelligent Fuzzy-Based Handover System For Wireless
Cellular Networks And Its Performance Evaluation, Journal of Mobile Multimedia, Vol. 4, No. 3 (2008) Rinton Press
[31] Arta Doci, Fatos Xhafa: WIT –A Wireless Integrated Traffic Model, Mobile Information Systems, 4 (2008) 219–235.
IOS Press.
[30] Keita Matsuo, Leonard Barolli, Fatos Xhafa: Implementation of a JXTA-based P2P e-Learning System and Its
Performance Evaluation, IJWIS, Volume: 4 Issue: 3 Page: 352 - 371, 2008
[29] Fatos Xhafa, Javier Carretero, Bernabé Dorronsoro, Enrique Alba: Tabu Search Algorithm for Scheduling
Independent Jobs in Computational Grids, Computer And Informatics Journal, Vol. 28, No 2, 2009, pp 237-249
- [28]
Xhafa, Fatos; Duran, Bernat; Abraham, Ajith; Dahal, Keshav.
Tuning Struggle Strategy in Genetic Algorithms for
- Scheduling in Computational Grids. Neural Network World. Vol. 18, No. 3, 209-225, Jul, 2008.
- [27]
L. Barolli, F. Xhafa, A. Durresi, A.
Koyama, “A Context-Aware Fuzzy-Based Handover System for Wireless
Cellular
-
Networks and Its Performance Evaluation”, Journal of Mobile Multimedia
(JMM), Vol. 4. No.3/4, pp. 241-258, 2008.
- [26]
F. Xhafa, L. Barolli, T. Daradoumis, R. Fernandez, S. Caballé.
Extension and evaluation of JXTA protocols for
-
supporting reliable P2P distributed computing. International Journal of
Web Information Systems, Vol 4 (1), 121-135,
- 2008,
Emerald
Pub.
[25] Fatos Xhafa, Leonard Barolli, Thanasis Daradoumis, Raul Fernandez, Santi Caballé: Jxta-Overlay: An interface
for efficient peer selection in P2P JXTA-based systems. Computer Standards & Interfaces 31(5): 886-893 (2009)
- [24] K. Matsuo, L. Barolli, F. Xhafa, A.
Koyama, A. Durresi, Implementation of a JXTA-based P2P e-Learning
System and
- Its
Performance Evaluation, International
Journal of Web Information
Systems, Vol. 4, No. 3, pp. 352-371, 2008.
[23] F. Xhafa. A Hyper-heuristic for Adaptive Scheduling in Computational Grids, International Journal on Neural and
-
Mass-Parallel Computing and Information Systems, 17(6),
639-656,
2007
[22] F. Xhafa, E. Alba, B. Dorronsoro, B. Duran, Efficient Batch Job Scheduling in Grids Using Cellular Memetic Algorithms,
- Journal
of Mathematical Modelling and Algorithms, 7(2):217-236, Kluwer
Academic
Publishers, 2008. ISSN: 1570-1166.
[21] F. Xhafa, L. Barolli, and A. Durresi, An Experimental Study On Genetic Algorithms for Resource Allocation On Grid - Systems, Journal of Interconnection Networks,
Volume: 8, Issue:
4, 427 - 443, World Sci. Pub.
[20] M. Serna, F. Xhafa, Parallel Approximation to High Multiplicity Scheduling Problems via Smooth Multi-valued
- Quadratic
Programming. Theoretical Informatics
and Applications, Vol. 42,
237-252, 2007, EDP Sciences.
[19] T. Yang, L. Barolli, M. Ikeda, A. Durresi, F. Xhafa. Performance Evaluation of Reactive and Proactive Protocols for - Ad-Hoc Sensor Networks Using Different Radio Models. Journal of Interconnection Networks, Volume: 8, Issue: 4,
- 387-405, World
Sci. Pub.
[18] F. Xhafa, J. Carretero, L. Barolli and A. Durresi. Requirements for an Event-Based Simulation Package for Grid - Systems. Journal
of Interconnection Networks, Vol.8, No.2, 163-178, 2007, World
Scientific Pub.
[17] J. Gabarró, I. Vallejo, F. Xhafa, On Using Partial Orders for Web Application Design to Enhance Navegability and and -
Extensibility. International Journal
of Web Information Systems. Vol.3
No.1/2, 8-25, Emerald Group Pub., 2007
[16] F. Xhafa, J. Carretero, A. Abraham. Genetic Algorithm Based Schedulers for Grid Computing Systems. International
- Journal
of Innovative Computing, Information and Control, Vol. 3, No.5,
pp.
1-19, 2007.
[15] F. Xhafa, J. Carretero, L. Barolli and A. Durresi. Immediate Mode Scheduling in Grid Systems. International Journal of
-
Web and
Grid Services, Vol.3 No.2, 219-236, 2007.
[14] F. Xhafa, L. Barolli and A. Durresi. Batch Mode Schedulers for Grid Systems. International Journal of Web and Grid
-
Services, Vol. 3, No. 1, 19-37, 2007.
[13] L. Barolli, F.Xhafa, A. Durresi, G. De Marco M3PS: a JXTA-based Multiplatform P2P System and Its Web Application
- Tools, International Journal of Web
Information Systems (IJWIS), Vol.3, No.1,
2007.
[12] M. Blesa, J. Petit and F. Xhafa. Generic Parallel Implementations for Tabu Search. Journal of Computer Systems
-
Science
and Engineering, 21(6), 413-432, 2006.
[11] Alba, F. Almeida, M. Blesa, C. Cotta, M. Díaz, I. Dorta, J. Gabarró, J. González, C. León, L. Moreno, J. Petit, J. Roda,
-
A.Rojas, F. Xhafa. Efficient Parallel LAN/WAN Algorithms for
Optimization. The MALLBA Project. Parallel Computing,
-
32(5-6):415-440, June 2006.
[10] J. Carretero and F. Xhafa. Using Genetic Algorithms for Scheduling Jobs in Large Scale Grid Applications. Journal of - Technological and Economic Development --A Research Journal of Vilnius Gediminas Technical University, ISSN
- 1392-8619, Vol.
12, No. 1, p. 11-17, 2006.
[9] Maria Serna, Luca Trevisan and Fatos Xhafa: Approximability of Non-Boolean Satisfiability Problems and Restricted
- Integer
Programming. Theoretical Computer
Science, 332: 123– 139, 2005
[8] Maria Serna and Fatos Xhafa: Parallel Approximability of the False and True Gates Problems in Nor-Circuits. Parallel
-
Processing Letters.
Vol. 12, No. 1 (2002) 127-136
[7] Maria Serna and Fatos Xhafa: Approximating Scheduling Problems in Parallel. Computational Optimization and
-
Applications, Vol
21 (3), 325-338, 2002
[6] Maria Serna and Fatos Xhafa: The Parallel Approximability of a Subclass of Quadratic Programming. Theoretical
-
Computer Science,
259:217-231, 2001
[5] Luca Trevisan and Fatos Xhafa: The Parallel Complexity of Positive Linear Programming. Parallel Processing Letters
- Vol.
8(4):527-533, 1998
[4] Maria Serna and Fatos Xhafa: Average Case Analysis for Some P-complete Problems. Theoretical Informatics and
- Applications, Vol. 33(1):33-45, 1999
- [3] Th. Daradoumis, A. Martínez-Monés, and Fatos Xhafa: A Layered Framework for Modelling Online Collaborative
- Learning
Interactions. International
Journal of Man-Machine Studies 64(7): 622-635 (2006), Elssevier.
- [2]
T. Daradoumis, F. Xhafa and J.M. Marqués: A Framework for understanding
Cooperation and Coordination in a
- Project-based Collaborative Learning Situation, Int. J. Cont. Engineering Education and Lifelong Learning, Vol. 12, No.
- 5/6, 2002 389,
Inderscience Publishers.
[1] Alan Zemel, F. Xhafa and M. Cakir, What's in the mix? Combining coding and conversation analysis to investigate - chat-based problem
solving, Journal of Learning and
Instruction, Volume 17, Issue 4,
405-415, August 2007, Elsevier
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