Fifth International World Wide Web Conference

Existing Approaches

Provide multiple versions of content, e.g. Xinside	Increased administration at server Changes to server code, to support e.g. Odyssey [Satyanarayanan et al. ] Difficult and getting worse, since "anyone" can be a server
Progressive encodings	E.g. LOWSRC image tag extension, PJPEG, PGIF Initial latency may still be high No active bandwidth management or traffic scheduling
Use ALT text	WWW is already graphics-intensive Advertising is making "logo visibility" important
Caching and prefetching	Reduces latency but not bandwidth to client Caching is necessary, but orthogonal to our approach

Reducing WWW Latency and Bandwidth Requirements by Real-Time Distillation (A.Fox,E.A.Brewer)