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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...
In this work, we introduce a Deep Neural Network model for automated software categorization. The model is ableto form high-level concepts from low-level code tokens andto distinguish important features such as API calls and identifiersin order to support software categorization. Our empirical evaluationshows that DNN outperformed other machine learning approacheswith 15.9–36.4% higher accuracy in...
App store reviews are currently the main source of information for analyzing different aspects of app development and evolution. However, app users' feedback do not only occur on the app store. In fact, a large quantity of posts about apps are made daily on social media. In this paper, we study how Twitter can provide complementary information to support mobile app development. By analysing a total...
Packing polygonal objects to be cut in fiber or leather densely for efficient use of material is important to automatic die-cutting machine tools. Prior to computing a tight pack of objects in a given area of material, proper gaps among packed objects should be firstly reserved to prevent over-cutting on the edges of neighboring objects by a die. To maintain object gaps for packing, we propose a new...
Preschoolers as digital native cannot avoid gadgets. Game applications are more accessible to them. People believe that games have a negative impact such as bad character and violence. Nevertheless, the game can be developed into a fun tool. This research aimed to design a game prototype boosting cognitive abilities for preschoolers. Prototyping and testing the game system were the method. A preschoolers'...
To study wireless network, a network simulator always is an important tool for researchers to evaluate their theories. If a selected simulator inherently has poor architecture, the maintenance, will become more difficult in the future. To increase the flexibility of a simulator's architecture, the use of design patterns as the norms of system architecture design is suggested in this paper. We propose...
Software Defined Networking and Network Function Virtualisation provide significantly more flexibility and control when provisioning QoS for delay sensitive services. Network delay can have a detrimental impact on VoIP quality and, therefore, minimising delay can help maintain the quality and prevent call dropping. This paper proposes a queuing scheme based on packet delay for prioritising VoIP calls...
Disciplines as diverse as psychology, physics, marketing, and medicine have, for the past few years, been going through a soul-searching over the “reproducibility crisis”. According to a recent survey in Nature, over 70% of researchers have failed in reproducing another scientist’s results and more than half have failed in trying to reproduce their own results. But replication of scientific results...
When a group of like-minded individuals set out on an ambitious quest, they need a clear vision, well-defined goals, skills to overcome unforeseen problems, commitment, perseverance, momentum, and a sense of joint adventure to propel them through the challenges ahead. This was certainly the case for interstellar travelers in the novel ‘Aurora’ written by Kim Stanley Robinson. The story starts 160...
"Having Divided to Conquer We Must Reunite [to] Rule" [3]. Decomposition of problems and systems into smaller, more manageable units has been at the heart of software engineering practice for decades. "Separation of concerns" gives software engineers the conceptual and practical tools to focus their attention, and their tools, on the parts of the problem or solution to which they...
Today, technology is enabling change in most of our lives. Also, crucial for most of these changes, are software startups whose contributions have led to the creation of a global market, jobs, and some help in fighting the "brain drain" pertaining in most developing countries. However, there is not enough academic literature to guide practitioners on how to leverage the collaborative potentials...
Video tutorials are an emerging form of documentation in software engineering and can efficiently provide developers with useful information needed for their daily tasks. However, to get the information they need, developers have to find the right tutorial for their task at hand. Currently, there is little information available to quickly judge whether a tutorial is relevant to a topic or helpful...
Previous studies of Web page revisitation were only focused on long-term revisit ranging from hours to days. In this paper, we study the short-term revisit of less than one hour such as the revisit behavior during a small programming task. We first perform an exploratory study to observe the short-term revisit phenomenon. We then perform controlled experiments with our designed tool support as treatment...
Several automated program repair techniques have been proposed to reduce the time and effort spent in bug-fixing. While these repair tools are designed to be generic such that they could address many software faults, different repair tools may fix certain types of faults more effectively than other tools. Therefore, it is important to compare more objectively the effectiveness of different repair...
Mobile app testing is challenging since each test needs to be executed in a variety of operating contexts including heterogeneous devices, various wireless networks, and different locations. Crowdsourcing enables a mobile app testing to be distributed as a crowdsourced task to leverage the crowd in a community. However, a high test quality and expected test context coverage are difficult to achieve...
As software systems become more complex, the number of test cases required for effective testing becomes intractable. Cache misses have been identified as a major factor that affects software execution time. In our current work we target the instruction locality problem in the context of testing.
A key open question in the area of software modeling is which costs and benefits it brings to software development and maintenance. For answering this question, better empirical studies into software modeling are needed. In this paper I focus on what I believe are the pitfalls in- and prospects for such types of studies. This paper is an abstract for an invited keynote at the Modeling in Software...
With the aim of identifying good structures and examples for papers in the software engineering field, we conducted a study of the type of papers accepted along four decades in the Research Track of the International Conference on Software Engineering (ICSE). We used for this purpose a categorization scheme for Software Engineering papers that was obtained by merging, extending and revising a few...
This paper briefly proposes a technique to detect energy inefficient fragments in the source code of a software system. Test cases are executed to obtain energy consumption measurements, and a statistical method, based on spectrum-basedfault localization, is introduced to relate energy consumption to the system's source code. The result of our technique is an energy ranking of source code fragments...
How do professional software engineers debug computer programs? In an experiment with 27 real bugs that existed in several widely used programs, we invited 12 professional software engineers, who together spent one month on localizing, explaining, and fixing these bugs. This did not only allow us to study the various tools and strategies used to debug the same set of errors. We could also determine...
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