Ks. Candan et al., RETRIEVAL SCHEDULES BASED ON RESOURCE AVAILABILITY AND FLEXIBLE PRESENTATION SPECIFICATIONS, Multimedia systems, 6(4), 1998, pp. 232-250
Citations number
40
Categorie Soggetti
Computer Science Theory & Methods","Computer Science Information Systems","Computer Science Theory & Methods","Computer Science Information Systems
A distributed multimedia document presentation involves retrieval of o
bjects from one or more document servers and their presentation at the
client system. The presentation of the multimedia objects has to be c
arried out in accordance with the specification of temporal relationsh
ips between the objects. The retrieval of multimedia objects from the
document server(s) is influenced by factors such as temporal specifica
tion of objects presentations, throughput offered by the network servi
ce provider, and the buffer resources on the client system. Flexibilit
y in the temporal specification of the multimedia document may help in
deriving an object retrieval schedule that can handle variations in n
etwork throughput and buffer resource availability. In this paper, we
develop techniques for deriving a flexible object retrieval schedule f
or a distributed multimedia document presentation. The schedule is bas
ed on flexible temporal specification of the multimedia document using
the difference constraints approach. We show how the derived retrieva
l schedule can be validated and modified to ensure that it can work wi
th the offered network throughput and the available buffer resources.