Engineering software systems is a multidisciplinary activity, whereby a number of artifacts must be created — and maintained — synchronously. In this paper we investigate whether production code and the accompanying tests coevolve by exploring a project’s versioning system, code coverage reports and size-metrics. Our main aim for studying this co-evolution is to create awareness with developers...

Keywords: Three-dimensional networks 3D networks Coverage and connectivity Polyhedron Node placement k-Coverage a b s t r a c t The increasing interest in using sensor networks in applications for underwater surveillance and oceanic studies underscores the importance of solving the coverage and connec-tivity issues in 3D wireless sensor networks (WSN). In particular, the problem of supporting f...

Currently, testing is still the most important approach to reduce the amount of software defects. Software quality metrics help to prioritize where additional testing is necessary by measuring the quality of the code. Most approaches to estimate whether some unit of code is sufficiently tested are based on code coverage, which measures what code fragments are exercised by the test suite. Unfort...

Wireless sensor networks (WSNs) are commonly used for continuous monitoring applications. However, due to remote and inaccessible WSN deployments, the batteries cannot be easily replaced. As a result, the quality of sensor monitoring changes with respect to time. We investigate the rate of change in coverage as sensor nodes are depleted of their energy resources. In this paper, we propose a cov...

This paper presents a multi-dialect, multi-genre, human annotated corpus of dialectal Arabic with data obtained from both online newspaper commentary and Twitter. Most Arabic corpora are small and focus on Modern Standard Arabic (MSA). There has been recent interest, however, in the construction of dialectal Arabic corpora (Zaidan and Callison-Burch, 2011a; Al-Sabbagh and Girju, 2012). This wor...

Wireless sensor networks are widely used in security monitoring applications to sense and report specific activities in a field. In path coverage, for example, the network is in charge of monitoring a path and discovering any intruder trying to cross it. In this paper, we investigate the path coverage properties of a randomly deployed wireless sensor network when the number of sensors and also ...

It is part of the traditional lore of genetic algorithms that low mutation rates lead to efficient search of the solution space, while high mutation rates result in diffusion of search effort and premature extinction of favorable schemata in the population. We argue that the optimal mutation rate depends strongly on the choice of encoding, and that problems requiring nonbinary encodings may ben...

Extensive, accurate imaging of the Cosmic Background Radiation temperature anisotropy at sub–degree angular resolution is widely recognized as one of the most crucial goals for cosmology and astroparticle physics in the next decade. We review the scientific case for such measurements in relation with sky coverage, attainable sensitivity, confusing foreground radiation components, and experiment...

This paper reports on the development of a finite state system for finding grammar errors in Swedish text written by children. The writing problems are more frequent for this group and the distribution of the error types is different from texts written by adults. The detection approach involves subtraction of automata that represent two “positive” grammars with varying degree of detail. The dif...

In this paper we extend our understanding of the feasibility of testing BDI agent programs by analysing their testability with respect to the all edges test adequacy criterion, and comparing with previous work that considered the all paths criterion. Our findings extend the earlier analysis with respect to the all paths criterion to give a more nuanced understanding of the difficulty of testing...