1 Summary Caching is one common technique for enhancing the scalability of media streaming systems. However, current caching techniques are not aware of quality adaptation. To deal with this problem, Rejaie et al. (1999) proposed an adaptive multimedia caching mechanism for layered encoded multimedia streams. This mechanism includes two techniques. The first is a pre-fetch scheme that enables t...

In this paper we present a software implementation of an Adaptive Playout System for video rendering. In our opinion the system can be useful for the rendering of multimedia material that is delivered (in single or multi−cast way) to the final user(s) over a “best effort” network that is not able to guarantee a constant delay in delivering the data packets. The proposed solution is an alternati...

an adaptive version of growing and pruning rbf neural network has been used to predict the system output and implement linear model-based predictive controller (lmpc) and non-linear model-based predictive controller (nmpc) strategies. a radial-basis neural network with growing and pruning capabilities is introduced to carry out on-line model identification.an unscented kalman filter (ukf) algor...

There is a tremendous demand on real-time multimedia delivery over wireless Internet due to the dramatic increase in wireless communication and the growth of the Internet. However, real-time multimedia over wireless Internet poses many challenges. First of all, the inherent best-effort characteristic of packet-switched networks makes it difficult to provide guaranteed QoS for real-time multimed...

IP networks are not designed for real-time voice data. The statistical nature of data traffic and the dynamic routing techniques employed in IP networks results in a varying network delay (jitter) experienced by IP packets. As a result voice packets generated at successive and periodic intervals at the source will typically be buffered at the receiver prior to playback in order to smooth out th...

In this paper, we study the problem of power efficient tracking interval management for distributed target tracking wireless sensor networks (WSNs). We first analyze the performance of a distributed target tracking network with one moving object, using a quantitative mathematical analysis. We show that previously proposed algorithms are efficient only for constant average velocity objects howev...

We introduce a methodology to dynamically adjust the multimedia presentations as a result of user interactions during the playout. A constraint-driven approach is described for the automated assembly, organization and playout of presentations from multimedia databases. To allow interactive user control over the playout of an automatically generated presentation, an arbitrary number of control b...

Monte-Carlo Tree Search (MCTS) has become a popular search technique for playing multi-player games over the past few years. In this paper we propose a technique called Playout Search. This enhancement allows the use of small searches in the playout phase of MCTS in order to improve the reliability of the playouts. We investigate max, Paranoid and BRS for Playout Search and analyze their perfor...

Most online algorithms used in machine learning today are based on variants of mirror descent or follow-the-leader. In this paper, we present an online algorithm based on a completely different approach, which combines “random playout” and randomized rounding of loss subgradients. As an application of our approach, we provide the first computationally efficient online algorithm for collaborativ...