A High-Performance Data Structure for Mobile Information Systems

  • John N. Wilson
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2348)


Mobile information systems can now be provided on small form-factor computers. Dictionary-based data compression extends the capabilities of systems with limited processing and memory to enable data intensive applications to be supported in such environments. The nature of judicial sentencing decisions requires that a support system provides accurate and up-to-date data and is compatible with the professional working experience of a judge. The difficulties caused by mobility and the data dependence of the decision-making process are addressed by an Internet-based architecture for collecting and distributing system data. We describe an approach to dictionary-based data compression and the structure of an information system that makes use of this technology.


Personal Digital Assistant Mobile Client Service Interval Dynamic Mobility Sentencing Decision 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. 1.
    W.P. Cockshott, D.R. McGregor, and J.N. Wilson. High performance operations using a compressed database architecture. Computer Journal, 41(5):283–296, 1998.zbMATHCrossRefGoogle Scholar
  2. 2.
    B. Dahlbom and F. Ljungberg. Mobile informatics. Scandinavian Journal of Information Systems, 10(1):227–234, 1999.Google Scholar
  3. 3.
    H. Garcia-Molina and K. Salem. Main memory database systems: an overview. IEEE Transactions on Knowledge and Data Engineering, 4:6:509516, 1992.Google Scholar
  4. 4.
    T. Lehman, E. Shekita, and L. Cabrera. An evaluation of starburst’s memory resident storage component. IEEE Transactions Knowledge and Data Engineering, 4:6, 1992.Google Scholar
  5. 5.
    R. Murbach and E. Nonn. Similarity in harder cases. Proceedings of the 4th International Conference on Artificial Intelligence and Law Amsterdam, June,, pages 236–244, 1993.Google Scholar
  6. 6.
    I. Potas, D. David Ash, M. Sagi, S. Cumines, and N. Marsic. Informing the discretion: The sentencing information system of the Judicial Commission of New South Wales. International Journal of Law and Information Technology, 6:99, 1998.CrossRefGoogle Scholar
  7. 7.
    P. Pucheral, J. Thevenin, and P. Valduriez. Efficient main memory data management using dbgraph storage model. Proceedings of the 16th VLDB Conference, Brisbane, pages 683–695, 1990.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2002

Authors and Affiliations

  • John N. Wilson
    • 1
  1. 1.Department of Computer and Information SciencesUniversity of StrathclydeGlasgowUK

Personalised recommendations