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Ronneby, Sweden

The Blekinge Institute of Technology is a public, state funded Swedish Institute of technology in Blekinge with 7,200 students and offers 350 courses in 50 educational programmes in five schools at two campuses located in Karlskrona and Karlshamn.BTH is one of three independent institutes of technology in Sweden and in 1999 it was granted university status in technology. Among a large number of programmes and courses taught in Swedish, BTH offers two undergraduate programmes and about 18 Master's programmes in English.The institute focuses on applied information technology and sustainable development; additionally also offers programs in management, economy, health, planning, social science and the humanities.Blekinge Institute of Technology is located in the Telecom City area and works closely together with many telecommunications and software companies including Telenor, Ericsson AB and Wireless Independent Provider . Wikipedia.

Ivarsson M.,Chalmers University of Technology | Gorschek T.,Blekinge Institute of Technology
Empirical Software Engineering | Year: 2011

One of the main goals of an applied research field such as software engineering is the transfer and widespread use of research results in industry. To impact industry, researchers developing technologies in academia need to provide tangible evidence of the advantages of using them. This can be done trough step-wise validation, enabling researchers to gradually test and evaluate technologies to finally try them in real settings with real users and applications. The evidence obtained, together with detailed information on how the validation was conducted, offers rich decision support material for industry practitioners seeking to adopt new technologies and researchers looking for an empirical basis on which to build new or refined technologies. This paper presents model for evaluating the rigor and industrial relevance of technology evaluations in software engineering. The model is applied and validated in a comprehensive systematic literature review of evaluations of requirements engineering technologies published in software engineering journals. The aim is to show the applicability of the model and to characterize how evaluations are carried out and reported to evaluate the state-of-research. The review shows that the model can be applied to characterize evaluations in requirements engineering. The findings from applying the model also show that the majority of technology evaluations in requirements engineering lack both industrial relevance and rigor. In addition, the research field does not show any improvements in terms of industrial relevance over time. © Springer Science+Business Media, LLC 2010. Source

Rudenko O.V.,Blekinge Institute of Technology
Acoustical Physics | Year: 2010

The 40th anniversary of the Khokhlov-Zabolotskaya equation was marked by a special session of the 158th Meeting of the Acoustical Society of America (October 2009, San Antonio, Texas, United States). A response on the part of Acoustical Physics to this date is also quite appropriate, all the more so because Russian scientists were the main players involved in formulating and using this equation during the period of time between the middle 1960s and middle 1980s. In this article, the author-a participant and witness of those events-presents his view of the dramatic history of the formulation of this equation and related models in the context of earlier and independent work in aerodynamics and nonlinear wave theory. The main problems and physical phenomena described by these mathematical models are briefly considered. © 2010 Pleiades Publishing, Ltd. Source

Tornquist Krasemann J.,Blekinge Institute of Technology
Transportation Research Part C: Emerging Technologies | Year: 2012

An attractive and sustainable railway traffic system is characterized by having a high security, high accessibility, high energy performance and offering reliable services with sufficient punctuality. At the same time, the network is to be utilized to a large extent in a cost-effective way. This requires a continuous balance between maintaining a high utilization and sufficiently high robustness to minimize the sensitivity to disturbances. The occurrence of some disturbances can be prevented to some extent but the occurrence of unpredictable events are unavoidable and their consequences then need to be analyzed, minimized and communicated to the affected users. Valuable information necessary to perform a complete consequence analysis of a disturbance and the re-scheduling is however not always available for the traffic managers. With current conditions, it is also not always possible for the traffic managers to take this information into account since he or she needs to act fast without any decision-support assisting in computing an effective re-scheduling solution. In previous research we have designed an optimization-based approach for re-scheduling which seems promising. However, for certain scenarios it is difficult to find good solutions within seconds. Therefore, we have developed a greedy algorithm which effectively delivers good solutions within the permitted time as a complement to the previous approach. To quickly retrieve a feasible solution the algorithm performs a depth-first search using an evaluation function to prioritise when conflicts arise and then branches according to a set of criteria. © 2010 Elsevier Ltd. Source

Rudenko O.V.,Blekinge Institute of Technology
Physics-Uspekhi | Year: 2013

We propose a modified form of the well-known non-linear dynamic equations with quadratic relations used to model a cubic nonlinearity. We show that such quadratically cubic equations sometimes allow exact solutions and sometimes make the original problem easier to analyze qualitatively. Oc-casionally, exact solutions provide a useful tool for studying new phenomena. Examples considered include nonlinear ordin-ary differential equations and Hopf, Burgers, Kortewegde Vries, and nonlinear SchroE dinger partial differential equa-tions. Some problems are solved exactly in the space-time and spectral representations. Unsolved problems potentially solva-ble by the proposed approach are listed. © 2013 Uspekhi Fizicheskikh Nauk, Russian Academy of Sciences. Source

Wohlin C.,Blekinge Institute of Technology
Empirical Software Engineering | Year: 2014

Several factors make empirical research in software engineering particularly challenging as it requires studying not only technology but its stakeholders' activities while drawing concepts and theories from social science. Researchers, in general, agree that selecting a research design in empirical software engineering research is challenging, because the implications of using individual research methods are not well recorded. The main objective of this article is to make researchers aware and support them in their research design, by providing a foundation of knowledge about empirical software engineering research decisions, in order to ensure that researchers make well-founded and informed decisions about their research designs. This article provides a decision-making structure containing a number of decision points, each one of them representing a specific aspect on empirical software engineering research. The article provides an introduction to each decision point and its constituents, as well as to the relationships between the different parts in the decision-making structure. The intention is the structure should act as a starting point for the research design before going into the details of the research design chosen. The article provides an in-depth discussion of decision points in relation to the research design when conducting empirical research. © 2014 Springer Science+Business Media New York. Source

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