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Someone Else’s Problems. Problems. Comprehensive information systems Multi-modal/multi-channel access. Comprehensive Info Systems. Databases, Web, Digital Libraries, Document Systems, Archives, … Different philosophies in information storage, access, manipulation, …

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problems
Problems
  • Comprehensive information systems
  • Multi-modal/multi-channel access
comprehensive info systems
Comprehensive Info Systems
  • Databases, Web, Digital Libraries, Document Systems, Archives, …
  • Different philosophies in information storage, access, manipulation, …
  • Even different “scientific” communities with limited communication among them
comprehensive info systems4
Comprehensive Info Systems
  • Need to understand real differences
  • Need to develop comprehensive approaches to deal with all forms of information
comprehensive info systems5
Comprehensive Info Systems
  • Need to be able to ask for

“Details of the $100K and up bank transactions of anyone mentioned in the same document as someone in the `most-wanted’ table who …”

and the system to deal with information of different degrees of structure

    • Database tables of people and transactions
    • XML files of transaction details
    • Text files of newspaper articles
comprehensive info systems6
Comprehensive Info Systems
  • Query languages and other interfaces
  • Other forms of interaction
  • Algebras
  • Query processing and optimization
  • Information synthesis
multi modal channel access
Multi-Modal/-Channel Access
  • Accessinformation using different devices at different times
  • Within and across user sessions
  • Critical for mobile databases, location-based information access, …
multi modal channel access8
Multi-Modal/-Channel Access
  • Persistent sessions across multiple devices
  • Session maintenance as user moves around - start from where user left off
  • Device-dependent interface and content & service delivery
multi modal channel access9
Multi-Modal/-Channel Access
  • Need to be able to ask for

“Seafood restaurants in Lowell, MA”

and the system

    • deliver a different response (in terms of visual abstraction level) when that is viewed from a laptop or a mobile phone
    • be prepared to respond on-line or later
multi modal channel access10
Multi-Modal/-Channel Access
  • “Multi-” query languages and other interfaces
  • “Multi-” algebras
  • “Multi-” processing and optimization
  • “Multi-” response formation
  • “Multi-” session management
multi modal channel access11
Multi-Modal/-Channel Access
  • Intimately related to
    • information approximation
    • quality of service
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