Date: Wed, 20 Nov 1996 22:28:46 GMT Server: Apache/1.0.3 Content-type: text/html Content-length: 38204 Last-modified: Wed, 29 Mar 1995 06:29:08 GMT
The intention here is to conceptualize and implement multimedia objects having semantically relevant structure amenable to querying and manipulation, in contrast to current multimedia systems which lack the database perspective of data independence and associated query capabilities and to current databases which treat multimedia objects as "blobs", if at all.
The seminar will develop prototype implementations which present diverse information -- such as movies, sound tracks, and even traditional relational data -- within a unified conceptual framework and presentation environment. This implementation will be done by teams who bring a variety of experiences to bear on the multifaceted issues which will arise.
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Markup languages such as SGML (Standard Generalized Markup Language) Goldfarb, Charles 1990 have been introduced for creating structured documents, but extracting the information based on the structures in the documents is still not a very simple issue, and in most cases, it is ad hoc and based on primitive word searches.
This talk would introduce structured documents and SGML, and discuss some of the ways of extracting information out of tagged documents. In particular, some present directions toward this area would be discussed, along with examples, advantages and disadvantages.
The Perspective Wall Mackinlay, J.D., Robertson, G.G., Card, S.K, 1991 attempts to handle these problems by integrating detail and context. We will examine two precursors to the Perspective Wall, "generalized fisheye views" Furnas, G.W., 1986 and the "bifocal display" Spence, R., Apperley, M., 1982, focusing in particular on the application of those ideas to linear information spaces.
In Using an Intelligent Agent to Mediate Multibase Information Access W Behrendt, E Hutchinson, KG Jeffrey, CA Macnee, MD Wilson (1993), the MIPS Project (multimedia presentation system) is introduced in the paper as a presentation of an open pre-authored hypermedia network stored in the HyTime standard format with dynamically created web nodes containing answers to conventional database queries. This illustrates how conventional hypermedia tools can be extended to include intelligent automatic generation of multimedia presentations from retrieved data. An example multimodel system(MMI2) is described to illustrate the technologies which could be brought to the market independently.
The above concepts and ideas are still in the research stage.
This presentation is based on five different papers, ranging from continuous media storage to the cost effectiveness of Video On-Demand systems. These papers are: Lougher, P. and Shepherd, D. 1993, Rangan, P. and Vin, H. 1993, Federighi, C. and Rowe, L. 1994, Ghandeharizadeh, S. and Ramos, L. 1993, and Doganata, Y. and Tantawi, A. 1994..
Cognitive and anthropomorphic approaches were applied extensively to database interface design, producing a number of design guidelines. The usefulness of these guidelines for actual design will be discussed in the context of advantages and disadvantages of each approach. In addition, two articles (Williams, M.D. 1984 and Eberts, R.E. and Bittianda, K.P. 1993) will be described in greater detail to illustrate the application of cognitive and anthropomorphic methods to database interface issues.