In wireless sensor network a Quality of Service (QoS) guarantee is essential for successful delivery of multimedia over network traffic. Challenges in media streaming WSN include high bandwidth on demand, consumption of high energy, quality of service provisioning, data processing/compressing techniques and cross layer design. This paper proposes an adaptive QoS based error handling scheme call...

Adequate error-handling code is essential to the reliability of any system. On an error, such code is responsible for releasing acquired resources to restore the system to a viable state. Missing resource-release operations can lead to system crashes, memory leaks and deadlocks. A number of approaches have been proposed to detect such problems, but they mainly target frequently occurring resour...

The paper presents a new way to model partial operations by use of nondeterminism: a partial operation is modeled as a nondeterministic operation returning, possibly, any value of the carrier. We introduce an institution of multialgebras MA (modelling nondeterministic operations by set-valued functions) and illustrate the exibility of our approach by examples showing uniform treatment of strict...

The aim of this paper is to investigate management of miscommunication in spontaneous interaction between a human and a speech-enabled robot. The paper describes initial results of an exploratory WOz study, in which pairs of naive participants interacted and collaborated in a navigation task. The study is motivated by how humans achieve mutual understanding as well as previous research conducte...

While the virtual environments are gaining more success each day there are many usability problems associated with them. The controlling methods, which usually rely heavily on the user’s hands, are one problem. There are situations and user groups in which this is not an acceptable way to use the computer. Here we approach this problem by using speech input. The relatively high error rates are ...

This paper advocates the adoption of deferred error coding within computer science curricula. It argues that it is both a sound development strategy and aligns well pedagogically. By deferring specific error handling, the student better appreciates its subtleties and its importance as an independent topic, and will tend to create more reliable applications. This paper includes other topics whic...

Speech understanding errors in spoken dialogue systems can be frustrating for users and difficult to recover from in a mixed-initiative spoken dialogue system. Handling such errors requires both detecting error conditions and adjusting the response generation strategy accordingly. In this paper, we show that different response wording choices tend to be associated with different user behaviors ...

Exception handling mechanisms are intended to support the development of robust software. However, the implementation of such mechanisms with aspectoriented (AO) programming might lead to error-prone scenarios. As aspects extend or replace existing functionality at specific join points in the code execution, aspects’ behavior may bring new exceptions, which can flow through the program executio...

Cyber-Physical Production Systems (CPPS) are long-living and mechatronic systems, which include mechanics, electrics/electronics software. The interdisciplinary nature combined with challenges trends in the context of Industry 4.0 such as a high degree customization, small lot sizes evolution cause amount variability. Mastering variability functional control software, e.g., different variants a...