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Although working in teams is an effective method for students to learn skills necessary for information systems, the optimal combination of team members to maximize the learning effectiveness has yet to be clarified. This study investigates the relationship between the combination of students' personality characteristics and learning effectiveness in three information system lecture courses. Two Five...
The actual development of the IT sector generated software products that are now a significant part of any field. The increasing number of IT products led to changes in the project management of software development. If, in the beginnings, the project management tools were limited and included approaches such as: the waterfall model, the incremental spiral model, prototyping, and rapid application...
Power Analysis (PA) is a powerful method to extract leakage information from theoretically secure cryptographic devices. In general, Differential Power Analysis (DPA) correlates the processed data with power consumption of devices through statistical analysis to reveal systems' secret key. A common approach to counteract DPA is a low-entropy lightweight masking strategy. This masking scheme, known...
The statistical technique for detecting outliers in multivariate non-Gaussian data on the basis of normalizing transformations and the Mahalanobis squared distance (MSD) is proposed. Application of the technique is considered for detecting outliers in the data of four-variate measurements.
Major depressive disorder (MDD) is associated with excessive self-focus and a tendency to engage in self-reflection. Women are more inclined to form negative thoughts when facing problems such as social rejection. The neuroimaging studies addressing MDD females are still rare. The medial prefrontal cortex, a central node of anterior default mode network (DMN), plays an important role in the pathophysiology...
In the environment of big data, We-media data which was produced on the public emergencies has presented the characteristics such as mass data, complex structure, various types, and so on. The analysis and guidance of public sentiment is very important to the healthy development of public events. This paper focuses on the micro-blog data of Tianjin explosion event. After the micro-blog contents collection...
The paper subject is the modernization of two mobile wood processing equipment, a debarking and a chipping machine, working at the forest border and used to obtain wood chips for the pulp and paper industry, in order to work in tandem operating mode. Control hardware has been added and original software has been elaborated but with the wireless communications between the two machines established,...
Blood urea nitrogen (BUN) is an indicator of dehydration in patients at risk of developing acute stroke-in-evolution, and BUN level detection in such patients can help prevent such a diagnosis. This study developed the key module components of and techniques employed by a BUN analyzer that is suitable for use during home care. Based on suggestions by health professionals, an analyzer was developed,...
Empirical studies in software engineering frequently rely on correlation data in an effort to demonstrate that a process or tool affects an important or meaningful outcome, with the ultimate goal of improving software engineering practice. But all students of statistics know that "correlation does not imply causation," and so causal conclusions (using traditional methods) from observational...
This technical briefing provides an overview of how quantitative empirical research methods can be combined with qualitative ones generating the family of empirical software engineering approaches known as mixed-methods. The ultimate aim of such mixed-methods is supporting cause-effect claims combining multiple data types, sources and analyses that provide software practitioners and academicians solid...
This paper presents results of an analysis of the impact of the human resources changes in Scrum teams. Four Scrum teams were tracked (two developments and two quality assurance) along with their productivity and performance. Analysis showed that human resources changes have a significant impact on the entire team and its behavior. Their effort increased by adding overtime hours. In the same time,...
The article is devoted to the methods of identifying the user's of social networks psychological features and construction on these features user's vulnerabilities profile on the basis of the user's audio preferenses on his personal page in social network VK.com. The description of the software that implements these methods is illustrated in this article. The development of the methodology is based...
Due to the fact that software development is a product of team effort it is important to investigate the influence of group developmental psychology on software development performance. In this case study we wanted to test how performance (i.e. velocity and planning effectiveness) are related to the group's maturity level. We gave the Group Development Questionnaire (the GDQ) to 19 software developers...
It is common practice to discretize continuous defect counts into defective and non-defective classes and use them as a target variable when building defect classifiers (discretized classifiers). However, this discretization of continuous defect counts leads to information loss that might affect the performance and interpretation of defect classifiers. Another possible approach to build defect classifiers...
Emotional arousal increases activation and performance but may also lead to burnout in software development. We present the first version of a Software Engineering Arousal lexicon (SEA) that is specifically designed to address the problem of emotional arousal in the software developer ecosystem. SEA is built using a bootstrapping approach that combines word embedding model trained on issue-tracking...
Correlation among software artifacts (also known as traceability links) of object oriented software plays a vital role in its maintenance. These traceability links are being commonly identified through Information Retrieval (IR) based techniques. But, it has been found that the resulting links from IR contain many false positives and some complementary approaches have been suggested for the purpose...
To find the relation between conflict and employee satisfaction in geographically distributed software development (GDD) team, study the characters of GDD team and put forward four types of team conflict: emotional conflict, task conflict, cognitive conflict, and process conflict. Besides, bring in team interaction as an influencing factor of team conflict. Then come up with hypotheses about the impact...
This study uses non-minutiae fingerprint recognition methods to confirm earlier results on the existence of fingerprint template ageing. We performed the experiments on datasets including a time-span of 4 years. The acquisition was performed by using three different commercial off-the-shelf optical fingerprint sensors. Furthermore, we compared the results of those non-minutiae experiments to investigations...
This paper investigates two metrics related to the traceability relationships that exist between requirements and architectural design. In particular, we look into cross-cutting requirements, i.e., requirements that are implemented by several components, and, conversely, into overloaded components, i.e., components that implement several requirements. The intuition is that intricate dependencies between...
The Ministry of Research, Technology, and Higher Education of Indonesia has requirements to answer five main questions, i.e. what are the most popular research topics; which research topics tend to diminish; what are the trending research topics; who are the most influential researchers in a specific research topic, and; who are leading researchers in a specific topic. This study is a part of our...
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