Sequential decoders are convolutional channel decoders that are characterized by having variable decoding complexity in changing channel conditions. They are widely used in wireless packet-switching networks and mobile communications. The major difference of multimedia networks from traditional networks is the deadline to display or (play) the arriving packets. Especially, this is more obvious ...

Academics and practitioners agree that excellence in supply management results in better quality, customer service, and channel performance. Yet, most of these studies are either conceptual in nature or actual case studies. The primary objective Ž . of this research is to test the impact of a supply management orientation SMO on the suppliers’ operational performance Ž . and buyers’ competitive...

This paper presents a novel method that effectively combines both control variates and importance sampling in a sequential Monte Carlo context. The radiance estimates computed during the rendering process are cached in a 5D adaptive hierarchical structure that defines dynamic predicate functions for both variance reduction techniques and guarantees well-behaved PDFs, yielding continually increa...

Social media accounts are valuable for hackers for spreading phishing links, malware and spam. Furthermore, some people deliberately hack an acquaintance to damage his image. In this paper, a classification model is described for detecting these hacked Twitter accounts by examining changing features in behaviour. We look at changes in language, source, URL, retweets, frequency and time. Our mod...

This paper considers VLC decoding algorithms based on MAP sequence estimation techniques, using residual source redundancy to provide channel error correction. These algorithms rely on soft values available at the entrance of the VLC decoder. We present here a new soft VLC decoding algorithm based on a sequential decoding technique that is very efficient in terms of decoding complexity. The app...