Personalizing information gathering for mobile database clients

ABSTRACT

Mobile agents are ideal for mobile computing environments because of their ability to support asynchronous communication and flexible query processing since tasks can be delegated to mobile agents when a mobile client is disconnected. This paper explores the use of mobile agents in personalizing information gathering for mobile database clients. Personalized data take the form of materialized views and personalization is provided in the form of view maintenance options. These options, expressed using an extended SQL Create View command, offer a finer grain of control and balance between data availability and currency, the amount of wireless communication and the cost of maintaining consistency. The paper defines recomputational consistency and introduces new levels of materialized view consistency to better characterize the mobile client view currency customizations.

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INDEX TERMS

Primary Classification:
  H. Information Systems
  H.3 INFORMATION STORAGE AND RETRIEVAL
      H.3.3 Information Search and Retrieval
          Subjects: Selection process

Additional Classification:
  C. Computer Systems Organization
  C.1 PROCESSOR ARCHITECTURES
      C.1.3 Other Architecture Styles
          Subjects: Cellular architecture (e.g., mobile)

  H. Information Systems
  H.3 INFORMATION STORAGE AND RETRIEVAL
      H.3.4 Systems and Software
          Subjects: User profiles and alert services

  I. Computing Methodologies
  I.2 ARTIFICIAL INTELLIGENCE
        I.2.11 Distributed Artificial Intelligence
            Subjects: Intelligent agents

General Terms:
Algorithms, Design, Experimentation

Keywords:
data consistency and currency, materialized views, mobile agents, mobile computing, mobile databases