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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 • 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, … • Even different “scientific” communities with limited communication among them
Comprehensive Info Systems • Need to understand real differences • Need to develop comprehensive approaches to deal with all forms of information
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 Systems • Query languages and other interfaces • Other forms of interaction • Algebras • Query processing and optimization • Information synthesis • …
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 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 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 Access • “Multi-” query languages and other interfaces • “Multi-” algebras • “Multi-” processing and optimization • “Multi-” response formation • “Multi-” session management • …
Multi-Modal/-Channel Access • Intimately related to • information approximation • quality of service