Experimental studies confirmed that only a small portion of software modules cause faults in software systems. Therefore, the majority of software modules are represented with non-faulty labels and the rest are marked with faulty labels during the modeling phase. These kinds of datasets are called imbalanced, and different performance metrics exist to evaluate the performance of proposed fault ...

Recent years have witnessed successful real-world deployments of wireless sensor networks (WSNs) in a wide range of civil and military applications. Sensing coverage and network connectivity are two of the most fundamental issues to ensure effective environmental sensing and robust data communication in a WSN application. This chapter presents fundamental studies on the sensing coverage and the...

Detecting abnormal events in a monitored area is one of the fundamental applications in Wireless Sensor Networks (WSNs). Accidents and property damage can be avoided if accurate alarms are informed on time. In traditional monitoring strategies, a predefined threshold is given and an alarm is triggered when the sensor reading exceeds this threshold. This Single Threshold based Monitoring (STM) s...

Multi criterion Decision Making (MCDM) methods are widely applied in many domains for finding rank based on the available conflicting nature of the criteria and to choose the best alternative. MCDM methods comprise of complex mathematical calculations which required time to solve, especially, when number of criteria and alternatives are more. In order to automate the process software is require...

In competitive sports it is often very hard to quantify the performance. A player to score or overtake may depend on only millesimal of seconds or millimeters. In racquet sports like tennis, table tennis and squash many events will occur in a short time duration, whose recording and analysis can help reveal the differences in performance. In this paper we show that it is possible to architect a...

Single Display Groupware (SDG) is a research area that focuses on providing collaborative computing environments. Traditionally, most hardware platforms for SDG support only one person interacting at any given time, which limits collaboration. In this paper, we present laser pointers as input devices that can provide concurrent input streams ideally required to the SDG environment. First, we di...

A survey of four research papers pertaining to performance evaluation of operating system is presented. This survey and its related discussion highlight the approaches to system evaluation along with its associated challenges and tradeoffs. The article speaks to methodological issues of realism, accuracy, the granularity of measurement, the portability of measurement techniques and tools, as we...

In this paper we present an integrated approach to the functional and performance analysis of software modeling provided by Stochastic Process Algebra (SPA). Three SPA languages have been appeared in the last decade and are widely used for software architecture and performance evaluation. We present these languages with the difference between them and we show by an example the methodology which...

The aim of this work is the derivation of two approximated expressions for the two dimensional Gaussian Q-function, Q(x, y; ρ). These expressions are highly accurate and are expressed in closedform. Furthermore, their algebraic representation is relatively simple and therefore, convenient to handle both analytically and numerically. This feature is particularly useful for two reasons: firstly b...

Doubly Excited Brushless Reluctance Machine (DEBRM) has gained much attention recently in the area of variable-speed constant-frequency generating systems and adjustable speed drives. Two types of reluctance rotor structure, axially laminated and simple salient rotors, are suggested in the DEBRM development. Due to the unconventional pole number combination of the stator and rotor, performance ...