When a linear model is rank-deficient, then predictions based on that model become questionable because not all predictions are uniquely estimable. However, some of them are, and the estimability package provides tools that package developers can use to tell which is which. With the use of these tools, a model object’s predict method could return estimable predictions as-is while flagging non-e...

Several success stories of open source (OS) products have been seen during last decade. Due to the economical importance of the products, it is important to know who are the ones who have the largest influence to the products. Therefore, studying demography of open source projects is essential. In this paper the aspect is studied with respect to the Linux Kernel. We show that the influence is c...

This content analysis study, employing a multimodal perspective and critical visual analysis, set out to analyze gender representations in Top Notch series, one of the highly used ELT textbooks in Iran. For this purpose, six images were selected from these series and analyzed in terms of ‘representational’, ‘interactive’ and ‘compositional’ modes of meanings. The result indicated that there are...

Artificial Neural Networks (ANN) have recently been used in modeling the mechanical behavior of fiber-reinforced composite materials. The use of ANN in predicting fatigue failure in composites would be of great value if one could predict the failure of materials other than those used for training the network. This would allow developers of new materials to estimate in advance the fatigue proper...

Automatic program repair (APR) offers significant potential for automating some coding tasks. Using APR could reduce the high costs historically associated with fixing code faults and deliver benefits to software engineering. Adopting also have profound implications developers’ daily activities, transforming their work practices. To realise of it is vital that we consider how developers feel ab...

Even if recent methodologies bring more recognition to developers’ testing process, we still have little insight into its status within the industry. In this paper, we study the status of developers’ testing process at Nomadic Software. Our results show that the process is not uniformly executed. The company suffers from lack of control over the methods used, lack of formal communication on req...