34,929 research outputs found
Frame Theory for Signal Processing in Psychoacoustics
This review chapter aims to strengthen the link between frame theory and
signal processing tasks in psychoacoustics. On the one side, the basic concepts
of frame theory are presented and some proofs are provided to explain those
concepts in some detail. The goal is to reveal to hearing scientists how this
mathematical theory could be relevant for their research. In particular, we
focus on frame theory in a filter bank approach, which is probably the most
relevant view-point for audio signal processing. On the other side, basic
psychoacoustic concepts are presented to stimulate mathematicians to apply
their knowledge in this field
A user perspective of quality of service in m-commerce
This is the post-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2004 Springer VerlagIn an m-commerce setting, the underlying communication system will have to provide a Quality of Service (QoS) in the presence of two competing factorsânetwork bandwidth and, as the pressure to add value to the business-to-consumer (B2C) shopping experience by integrating multimedia applications grows, increasing data sizes. In this paper, developments in the area of QoS-dependent multimedia perceptual quality are reviewed and are integrated with recent work focusing on QoS for e-commerce. Based on previously identified user perceptual tolerance to varying multimedia QoS, we show that enhancing the m-commerce B2C user experience with multimedia, far from being an idealised scenario, is in fact feasible if perceptual considerations are employed
State Information in Bayesian Games
Two-player zero-sum repeated games are well understood. Computing the value
of such a game is straightforward. Additionally, if the payoffs are dependent
on a random state of the game known to one, both, or neither of the players,
the resulting value of the game has been analyzed under the framework of
Bayesian games. This investigation considers the optimal performance in a game
when a helper is transmitting state information to one of the players.
Encoding information for an adversarial setting (game) requires a different
result than rate-distortion theory provides. Game theory has accentuated the
importance of randomization (mixed strategy), which does not find a significant
role in most communication modems and source coding codecs. Higher rates of
communication, used in the right way, allow the message to include the
necessary random component useful in games.Comment: Presented at Allerton 2009, 6 pages, 5 eps figures, uses IEEEtran.cl
- âŠ