The SCEAS System
Navigation Menu

Search the dblp DataBase

Title:
Author:

Nalini Venkatasubramanian: [Publications] [Author Rank by year] [Co-authors] [Prefers] [Cites] [Cited by]

Publications of Author

  1. Daniel Massaguer, Vidhya Balasubramanian, Sharad Mehrotra, Nalini Venkatasubramanian
    Synthetic humans in emergency response drills. [Citation Graph (0, 0)][DBLP]
    AAMAS, 2006, pp:1469-1470 [Conf]
  2. Daniel Massaguer, Chien-Liang Fok, Nalini Venkatasubramanian, Gruia-Catalin Roman, Chenyang Lu
    Exploring sensor networks using mobile agents. [Citation Graph (0, 0)][DBLP]
    AAMAS, 2006, pp:323-325 [Conf]
  3. Kyoungwoo Lee, Aviral Shrivastava, Ilya Issenin, Nikil Dutt, Nalini Venkatasubramanian
    Mitigating soft error failures for multimedia applications by selective data protection. [Citation Graph (0, 0)][DBLP]
    CASES, 2006, pp:411-420 [Conf]
  4. Yun Huang, Nalini Venkatasubramanian, Yang Wang
    MAPGrid: A New Architecture for Empowering Mobile Data Placement in Grid Environments. [Citation Graph (0, 0)][DBLP]
    CCGRID, 2007, pp:725-730 [Conf]
  5. Sandy Irani, Nalini Venkatasubramanian
    Semi-Continuous Transmission for Cluster-Based Video Servers. [Citation Graph (0, 0)][DBLP]
    CLUSTER, 2001, pp:303-312 [Conf]
  6. Minyoung Kim, Sudarshan Banerjee, Nikil Dutt, Nalini Venkatasubramanian
    Design space exploration of real-time multi-media MPSoCs with heterogeneous scheduling policies. [Citation Graph (0, 0)][DBLP]
    CODES+ISSS, 2006, pp:16-21 [Conf]
  7. Sebastian Gutierrez-Nolasco, Nalini Venkatasubramanian
    A Reflective Middleware Framework for Communication in Dynamic Environments. [Citation Graph (0, 0)][DBLP]
    CoopIS/DOA/ODBASE, 2002, pp:791-808 [Conf]
  8. Jehan Wickramasuriya, Nalini Venkatasubramanian
    Dynamic Access Control for Ubiquitous Environments. [Citation Graph (0, 0)][DBLP]
    CoopIS/DOA/ODBASE (2), 2004, pp:1626-1644 [Conf]
  9. Hans Van Antwerpen, Nikil D. Dutt, Rajesh K. Gupta, Shivajit Mohapatra, Cristiano Pereira, Nalini Venkatasubramanian, Ralph von Vignau
    Energy-Aware System Design for Wireless Multimedia. [Citation Graph (0, 0)][DBLP]
    DATE, 2004, pp:1124-1131 [Conf]
  10. Dmitri V. Kalashnikov, Yiming Ma, Sharad Mehrotra, Ramaswamy Hariharan, Nalini Venkatasubramanian, Naveen Ashish
    SAT: Spatial Awareness from Textual Input. [Citation Graph (0, 0)][DBLP]
    EDBT, 2006, pp:1159-1163 [Conf]
  11. Sudeep Pasricha, Shivajit Mohapatra, Manev Luthra, Nikil D. Dutt, Nalini Venkatasubramanian
    Reducing Backlight Power Consumption for Streaming Video Applications on Mobile Handheld Devices. [Citation Graph (0, 0)][DBLP]
    ESTImedia, 2003, pp:11-17 [Conf]
  12. Nalini Venkatasubramanian, Carolyn L. Talcott, Gul Agha
    A Formal Model for Reasoning about Adaptive QoS-Enabled Middleware. [Citation Graph (0, 0)][DBLP]
    FME, 2001, pp:197-221 [Conf]
  13. Yun Huang, Nalini Venkatasubramanian
    Data Placement in Intermittently Available Environments. [Citation Graph (0, 0)][DBLP]
    HiPC, 2002, pp:367-376 [Conf]
  14. Yun Huang, Nalini Venkatasubramanian
    Supporting Mobile Multimedia Services with Intermittently Available Grid Resources. [Citation Graph (0, 0)][DBLP]
    HiPC, 2003, pp:238-247 [Conf]
  15. Mayur Deshpande, Nalini Venkatasubramanian, Sharad Mehrotra
    Heuristics for Flash-Dissemination in Heterogenous Networks. [Citation Graph (0, 0)][DBLP]
    HiPC, 2006, pp:607-618 [Conf]
  16. Yun Huang, Nalini Venkatasubramanian
    QoS-Based Resource Discovery in Intermittently Available Environments. [Citation Graph (0, 0)][DBLP]
    HPDC, 2002, pp:50-0 [Conf]
  17. Zhenghua Fu, Nalini Venkatasubramanian
    Adaptive Parameter Collection in Dynamic Distributed Environments. [Citation Graph (0, 0)][DBLP]
    ICDCS, 2001, pp:469-478 [Conf]
  18. Mayur Deshpande, Bo Xing, Iosif Lazaridis, Bijit Hore, Nalini Venkatasubramanian, Sharad Mehrotra
    CREW: A Gossip-based Flash-Dissemination System. [Citation Graph (0, 0)][DBLP]
    ICDCS, 2006, pp:45- [Conf]
  19. Qi Han, Sharad Mehrotra, Nalini Venkatasubramanian
    Energy Efficient Data Collection in Distributed Sensor Environments. [Citation Graph (0, 0)][DBLP]
    ICDCS, 2004, pp:590-597 [Conf]
  20. Shivajit Mohapatra, Nalini Venkatasubramanian
    PARM: Power Aware Reconfigurable Middleware. [Citation Graph (0, 0)][DBLP]
    ICDCS, 2003, pp:312-0 [Conf]
  21. Nalini Venkatasubramanian, Mayur Deshpande, Shivajit Mohapatra, Sebastian Gutierrez-Nolasco, Jehan Wickramasuriya
    Design and Implementation of a Composable Reflective Middleware Framework. [Citation Graph (0, 0)][DBLP]
    ICDCS, 2001, pp:644-653 [Conf]
  22. Nalini Venkatasubramanian, Srinivas Ramanathan
    Load Management in Distributed Video Servers. [Citation Graph (0, 0)][DBLP]
    ICDCS, 1997, pp:0-0 [Conf]
  23. Minyoung Kim, Hyunok Oh, Nikil D. Dutt, Alexandru Nicolau, Nalini Venkatasubramanian
    Probability Based Power Aware Error Resilient Coding. [Citation Graph (0, 0)][DBLP]
    ICDCS Workshops, 2005, pp:307-313 [Conf]
  24. Xiaoping Wei, Nalini Venkatasubramanian
    Predictive Fault Tolerant Placement In Distributed Video Servers. [Citation Graph (0, 0)][DBLP]
    ICME, 2001, pp:- [Conf]
  25. Liang Cheng, Stefano Bossi, Shivajit Mohapatra, Magda El Zarki, Nalini Venkatasubramanian, Nikil D. Dutt
    Quality Adapted Backlight Scaling (QABS) for Video Streaming to Mobile Handheld Devices. [Citation Graph (0, 0)][DBLP]
    ICN (1), 2005, pp:662-671 [Conf]
  26. Xingbo Yu, Sharad Mehrotra, Nalini Venkatasubramanian
    SURCH: Distributed Aggregation over Wireless Sensor Networks. [Citation Graph (0, 0)][DBLP]
    IDEAS, 2006, pp:158-165 [Conf]
  27. Zhenghua Fu, Nalini Venkatasubramanian
    Directory Based Composite Routing and Scheduling for Dynamic Multimedia Environments. [Citation Graph (0, 0)][DBLP]
    IPDPS, 2001, pp:11- [Conf]
  28. Qi Han, Matthew Ba Nguyen, Sandy Irani, Nalini Venkatasubramanian
    Time-Sensitive Computation of Aggregate Functions over Distributed Imprecise Data. [Citation Graph (0, 0)][DBLP]
    IPDPS, 2004, pp:- [Conf]
  29. Shivajit Mohapatra, Radu Cornea, Hyunok Oh, Kyoungwoo Lee, Minyoung Kim, Nikil D. Dutt, Rajesh Gupta, Alexandru Nicolau, Sandeep K. Shukla, Nalini Venkatasubramanian
    A Cross-Layer Approach for Power-Performance Optimization in Distributed Mobile Systems. [Citation Graph (0, 0)][DBLP]
    IPDPS, 2005, pp:- [Conf]
  30. Vidhya Balasubramanian, Daniel Massaguer, Sharad Mehrotra, Nalini Venkatasubramanian
    DrillSim: A Simulation Framework for Emergency Response Drills. [Citation Graph (0, 0)][DBLP]
    ISI, 2006, pp:237-248 [Conf]
  31. Vidhya Balasubramanian, Nalini Venkatasubramanian
    Adapting a Multimedia Distance Learning Environment for Vision Impairments. [Citation Graph (0, 0)][DBLP]
    ITCC, 2003, pp:115-0 [Conf]
  32. Yun Huang, Shivajit Mohapatra, Nalini Venkatasubramanian
    An Energy-Efficient Middleware for Supporting Multimedia Services in Mobile Grid Environments. [Citation Graph (0, 0)][DBLP]
    ITCC (2), 2005, pp:220-225 [Conf]
  33. Nalini Venkatasubramanian, Gul Agha, Carolyn L. Talcott
    Scalable Distributed Garbage Collection for Systems of Active Objects. [Citation Graph (0, 0)][DBLP]
    IWMM, 1992, pp:134-147 [Conf]
  34. Sebastian Gutierrez-Nolasco, Nalini Venkatasubramanian, Mark-Oliver Stehr, Carolyn L. Talcott
    Exploring adaptability of secure group communication using formal prototyping techniques. [Citation Graph (0, 0)][DBLP]
    Adaptive and Reflective Middleware, 2004, pp:232-237 [Conf]
  35. Shivajit Mohapatra, Nalini Venkatasubramanian
    A Game Theoretic Approach for Power Aware Middleware. [Citation Graph (0, 0)][DBLP]
    Middleware, 2004, pp:417-438 [Conf]
  36. Nanbor Wang, Fábio M. Costa, Angelo Corsaro, Geoffrey Coulson, Nalini Venkatasubramanian, Renato Cerqueira, Richard Staehli
    Introduction to the 3rd Workshop on Adaptive and Reflective Middleware (RM2004). [Citation Graph (0, 0)][DBLP]
    Adaptive and Reflective Middleware, 2004, pp:181- [Conf]
  37. Zhenghua Fu, Nalini Venkatasubramanian
    Combined path and server selection in dynamic multimedia environments. [Citation Graph (0, 0)][DBLP]
    ACM Multimedia (1), 1999, pp:469-472 [Conf]
  38. Vidhya Balasubramanian, Nalini Venkatasubramanian
    GURU: a multimedia distance-learning framework for users with disabilities. [Citation Graph (0, 0)][DBLP]
    ACM Multimedia, 2004, pp:750-751 [Conf]
  39. Shivajit Mohapatra, Radu Cornea, Nikil D. Dutt, Alexandru Nicolau, Nalini Venkatasubramanian
    Integrated power management for video streaming to mobile handheld devices. [Citation Graph (0, 0)][DBLP]
    ACM Multimedia, 2003, pp:582-591 [Conf]
  40. Nalini Venkatasubramanian, Klara Nahrstedt
    An Integrated Metric for Video QoS. [Citation Graph (0, 0)][DBLP]
    ACM Multimedia, 1997, pp:371-380 [Conf]
  41. Jehan Wickramasuriya, Mahesh Datt, Sharad Mehrotra, Nalini Venkatasubramanian
    Privacy protecting data collection in media spaces. [Citation Graph (0, 0)][DBLP]
    ACM Multimedia, 2004, pp:48-55 [Conf]
  42. Bo Xing, Nalini Venkatasubramanian
    Multi-Constraint Dynamic Access Selection in Always Best Connected Networks. [Citation Graph (0, 0)][DBLP]
    MobiQuitous, 2005, pp:56-64 [Conf]
  43. Mayur Deshpande, Nalini Venkatasubramanian
    The Different Dimensions of Dynamicity. [Citation Graph (0, 0)][DBLP]
    Peer-to-Peer Computing, 2004, pp:244-251 [Conf]
  44. Qi Han, Iosif Lazaridis, Sharad Mehrotra, Nalini Venkatasubramanian
    Sensor Data Collection with Expected Reliability Guarantees. [Citation Graph (0, 0)][DBLP]
    PerCom Workshops, 2005, pp:374-378 [Conf]
  45. Nalini Venkatasubramanian, Carolyn L. Talcott
    Reasoning about Meta Level Activities in Open Distributed Systems. [Citation Graph (0, 0)][DBLP]
    PODC, 1995, pp:144-152 [Conf]
  46. Sebastian Gutierrez-Nolasco, Nalini Venkatasubramanian, Mark-Oliver Stehr, Carolyn L. Talcott
    Towards Adaptive Secure Group Communication: Bridging the Gap between Formal Specification and Network Simulation. [Citation Graph (0, 0)][DBLP]
    PRDC, 2006, pp:113-120 [Conf]
  47. Qi Han, Nalini Venkatasubramanian
    Addressing Timeliness/Accuracy/Cost Tradeoffs in Information Collection for Dynamic Environments. [Citation Graph (0, 0)][DBLP]
    RTSS, 2003, pp:108-0 [Conf]
  48. Sebastian Gutierrez-Nolasco, Nalini Venkatasubramanian, Carolyn L. Talcott
    A semantic model for safe protocol interaction. [Citation Graph (0, 0)][DBLP]
    SAC, 2006, pp:1599-1600 [Conf]
  49. Sharad Mehrotra, Carter Butts, Dmitri V. Kalashnikov, Nalini Venkatasubramanian, Kemal Altintas, Ramaswamy Hariharan, Haimin Lee, Yiming Ma, Amnon Meyers, Jehan Wickramasuriya, Ron Eguchi, Charles Huyck
    CAMAS: A Citizen Awareness System for Crisis Mitigation. [Citation Graph (0, 0)][DBLP]
    SIGMOD Conference, 2004, pp:955-956 [Conf]
  50. Shivajit Mohapatra, Nalini Venkatasubramanian
    A Distributed Adaptive Scheduler for QoS Support in Compose|Q. [Citation Graph (0, 0)][DBLP]
    WORDS, 2002, pp:326-333 [Conf]
  51. Nalini Venkatasubramanian
    Safe 'composability' of middleware services. [Citation Graph (0, 0)][DBLP]
    Commun. ACM, 2002, v:45, n:6, pp:49-52 [Journal]
  52. Nalini Venkatasubramanian, Carolyn L. Talcott
    A Semantic Framework for Modeling and Reasoning about Reflective Middleware. [Citation Graph (0, 0)][DBLP]
    IEEE Distributed Systems Online, 2001, v:2, n:6, pp:- [Journal]
  53. Sudeep Pasricha, Manev Luthra, Shivajit Mohapatra, Nikil D. Dutt, Nalini Venkatasubramanian
    Dynamic Backlight Adaptation for Low-Power Handheld Devices. [Citation Graph (0, 0)][DBLP]
    IEEE Design & Test of Computers, 2004, v:21, n:5, pp:398-405 [Journal]
  54. Qi Han, Nalini Venkatasubramanian
    Aggregation based information collection for mobile environments. [Citation Graph (0, 0)][DBLP]
    J. High Speed Networks, 2002, v:11, n:3-4, pp:157-176 [Journal]
  55. Zhenghua Fu, Nalini Venkatasubramanian
    Directory-based composite routing and scheduling policies for dynamic multimedia environments. [Citation Graph (0, 0)][DBLP]
    Multimedia Syst., 2004, v:9, n:5, pp:398-410 [Journal]
  56. Surendar Chandra, Nalini Venkatasubramanian
    Editor's Note. [Citation Graph (0, 0)][DBLP]
    Multimedia Syst., 2006, v:11, n:6, pp:495-496 [Journal]
  57. Qi Han, Sebastian Gutierrez-Nolasco, Nalini Venkatasubramanian
    Reflective Middleware for Integrating Network Monitoring with Adaptive Object Messaging. [Citation Graph (0, 0)][DBLP]
    IEEE Network, 2004, v:18, n:1, pp:56-65 [Journal]
  58. Minyoung Kim, Hyunok Oh, Nikil Dutt, Alex Nicolau, Nalini Venkatasubramanian
    PBPAIR: an energy-efficient error-resilient encoding using probability based power aware intra refresh. [Citation Graph (0, 0)][DBLP]
    Mobile Computing and Communications Review, 2006, v:10, n:3, pp:58-69 [Journal]
  59. Iosif Lazaridis, Qi Han, Xingbo Yu, Sharad Mehrotra, Nalini Venkatasubramanian, Dmitri V. Kalashnikov, Weiwen Yang
    QUASAR: quality aware sensing architecture. [Citation Graph (0, 0)][DBLP]
    SIGMOD Record, 2004, v:33, n:1, pp:26-31 [Journal]
  60. Qi Han, Nalini Venkatasubramanian
    Information Collection Services for QoS-Aware Mobile Applications. [Citation Graph (0, 0)][DBLP]
    IEEE Trans. Mob. Comput., 2006, v:5, n:5, pp:518-535 [Journal]
  61. Nalini Venkatasubramanian, Carolyn L. Talcott, Gul Agha
    A formal model for reasoning about adaptive QoS-enabled middleware. [Citation Graph (0, 0)][DBLP]
    ACM Trans. Softw. Eng. Methodol., 2004, v:13, n:1, pp:86-147 [Journal]
  62. Qi Han, Nalini Venkatasubramanian
    Timeliness-Accuracy Balanced Collection of Dynamic Context Data. [Citation Graph (0, 0)][DBLP]
    IEEE Trans. Parallel Distrib. Syst., 2007, v:18, n:2, pp:158-171 [Journal]
  63. Ravi Chandra Jammalamadaka, Timothy W. van der Horst, Sharad Mehrotra, Kent E. Seamons, Nalini Venkatasubramanian
    Delegate: A Proxy Based Architecture for Secure Website Access from an Untrusted Machine. [Citation Graph (0, 0)][DBLP]
    ACSAC, 2006, pp:57-66 [Conf]
  64. Ravi Chandra Jammalamadaka, Roberto Gamboni, Sharad Mehrotra, Kent E. Seamons, Nalini Venkatasubramanian
    gVault: A Gmail Based Cryptographic Network File System. [Citation Graph (0, 0)][DBLP]
    DBSec, 2007, pp:161-176 [Conf]
  65. Minyoung Kim, Mark-Oliver Stehr, Carolyn L. Talcott, Nikil D. Dutt, Nalini Venkatasubramanian
    A Probabilistic Formal Analysis Approach to Cross Layer Optimization in Distributed Embedded Systems. [Citation Graph (0, 0)][DBLP]
    FMOODS, 2007, pp:285-300 [Conf]
  66. Minyoung Kim, Mark-Oliver Stehr, Carolyn L. Talcott, Nikil Dutt, Nalini Venkatasubramanian
    Combining Formal Verification with Observed System Execution Behavior to Tune System Parameters. [Citation Graph (0, 0)][DBLP]
    FORMATS, 2007, pp:257-273 [Conf]
  67. Mayur Deshpande, Abhishek Amit, Mason Chang, Nalini Venkatasubramanian, Sharad Mehrotra
    Flashback: A Peer-to-PeerWeb Server for Flash Crowds. [Citation Graph (0, 0)][DBLP]
    ICDCS, 2007, pp:15- [Conf]
  68. Mirko Montanari, Sharad Mehrotra, Nalini Venkatasubramanian
    Architecture for an Automatic Customized Warning System. [Citation Graph (0, 0)][DBLP]
    ISI, 2007, pp:32-39 [Conf]
  69. Bijit Hore, Hojjat Jafarpour, Ramesh Jain, Shengyue Ji, Daniel Massaguer, Sharad Mehrotra, Nalini Venkatasubramanian, Utz Westermann
    Design and Implementation of a Middleware for Sentient Spaces. [Citation Graph (0, 0)][DBLP]
    ISI, 2007, pp:137-144 [Conf]
  70. Yiming Ma, Dmitri V. Kalashnikov, Ramaswamy Hariharan, Sharad Mehrotra, Nalini Venkatasubramanian, Naveen Ashish, Jay Lickfett
    On-Demand Information Portals for Disaster Situations. [Citation Graph (0, 0)][DBLP]
    ISI, 2007, pp:133-136 [Conf]
  71. Qi Han, Nalini Venkatasubramanian
    A cost driven approach to information collection for mobile environments. [Citation Graph (0, 0)][DBLP]
    MWCN, 2002, pp:542-546 [Conf]
  72. Xingbo Yu, Sharad Mehrotra, Nalini Venkatasubramanian
    Sensor Scheduling for Aggregate Monitoring inWireless Sensor Networks. [Citation Graph (0, 0)][DBLP]
    SSDBM, 2007, pp:24- [Conf]
  73. Yun Huang, Nalini Venkatasubramanian
    Supporting mobile multimedia applications in MAPGrid. [Citation Graph (0, 0)][DBLP]
    IWCMC, 2007, pp:176-181 [Conf]
  74. Qi Han, Sharad Mehrotra, Nalini Venkatasubramanian
    Application-aware integration of data collection and power management in wireless sensor networks. [Citation Graph (0, 0)][DBLP]
    J. Parallel Distrib. Comput., 2007, v:67, n:9, pp:992-1006 [Journal]

  75. Constraint Refinement for Online Verifiable Cross-Layer System Adaptation. [Citation Graph (, )][DBLP]


  76. MICS: an efficient content space representation model for publish/subscribe systems. [Citation Graph (, )][DBLP]


  77. iDataGuard: middleware providing a secure network drive interface to untrusted internet data storage. [Citation Graph (, )][DBLP]


  78. Efficient and scalable multi-geography route planning. [Citation Graph (, )][DBLP]


  79. Using Semantics for Speech Annotation of Images. [Citation Graph (, )][DBLP]


  80. An Experimental Study on Energy Consumption of Video Encryption for Mobile Handheld Devices. [Citation Graph (, )][DBLP]


  81. Data Partitioning Techniques for Partially Protected Caches to Reduce Soft Error Induced Failures. [Citation Graph (, )][DBLP]


  82. Error-Exploiting Video Encoder to Extend Energy/QoS Tradeoffs for Mobile Embedded Systems. [Citation Graph (, )][DBLP]


  83. RADcast: Enabling Reliability Guarantees for Content Dissemination in Ad Hoc Networks. [Citation Graph (, )][DBLP]


  84. Mobile Data Overlay (MDO): A Data Placement Paradigm for Mobile Applications. [Citation Graph (, )][DBLP]


  85. Subscription Subsumption Evaluation for Content-Based Publish/Subscribe Systems. [Citation Graph (, )][DBLP]


  86. iDataGuard: an interoperable security middleware for untrusted internet data storage. [Citation Graph (, )][DBLP]


  87. CCD: Efficient Customized Content Dissemination in Distributed Publish/Subscribe. [Citation Graph (, )][DBLP]


  88. Middleware for Pervasive Spaces: Balancing Privacy and Utility. [Citation Graph (, )][DBLP]


  89. Mitigating the impact of hardware defects on multimedia applications: a cross-layer approach. [Citation Graph (, )][DBLP]


  90. A Fast and Robust Content-based Publish/Subscribe Architecture. [Citation Graph (, )][DBLP]


  91. Privacy-Preserving Event Detection in Pervasive Spaces. [Citation Graph (, )][DBLP]


  92. Proximiter: Enabling Mobile Proximity-Based Content Sharing on Portable Devices. [Citation Graph (, )][DBLP]


  93. Exploring quality in multisensor pervasive systems - a localization case study. [Citation Graph (, )][DBLP]


  94. Gateway designation for timely communications in instant mesh networks. [Citation Graph (, )][DBLP]


  95. Practical experiences in enabling and ensuring quality sensing in emergency response applications. [Citation Graph (, )][DBLP]


  96. Dynamic Load Balancing for Cluster-Based Publish/Subscribe System. [Citation Graph (, )][DBLP]


  97. Message from the technical program chairs. [Citation Graph (, )][DBLP]


  98. PBCA - Prediction Based Channel Allocation. [Citation Graph (, )][DBLP]


  99. Pvault: a client server system providing mobile access to personal data. [Citation Graph (, )][DBLP]


  100. An Event Based Approach To Situational Representation [Citation Graph (, )][DBLP]


Search in 0.008secs, Finished in 0.013secs
NOTICE1
System may not be available sometimes or not working properly, since it is still in development with continuous upgrades
NOTICE2
The rankings that are presented on this page should NOT be considered as formal since the citation info is incomplete in DBLP
 
System created by asidirop@csd.auth.gr [http://users.auth.gr/~asidirop/] © 2002
for Data Engineering Laboratory, Department of Informatics, Aristotle University © 2002