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Internal quality evolution of a large test system – an industrial study

Abstract

This paper presents our empirical observations related to the evolution of a large automated test system. The system observed is used in the industry as a test tool for complex telecommunication systems, itself consisting of more than one million lines of source code. This study evaluates how different changes during the development have changed the number of observed Code Smells in the test system. We have monitored the development of the test scripts and measured the code quality characteristics over a five years period.

The observations show that the introduction of continuous integration, the existence of tool support for quality improvements in itself, changing the development methodologies (from waterfall to agile), changing technical and line management structure and personnel caused no measurable change in the trends of the observed Code Smells. Internal quality improvements were achieved mainly by individuals intrinsic motivation. Our measurements show similarities with earlier results on software systems evolutions presented by Lehman.

Open access
Simple scalable nucleotic FPGA based short read aligner for exhaustive search of substitution errors

References [1] L. B. Alexandrov, Serena Nik-Zainal, et al., Signatures of mutational processes in human cancer, Nature 500 (7463) (2013) 415-421. ⇒152 [2] J. Arram, K. H. Tsoi, Wayne Luk, P. Jiang, Hardware Acceleration of Genetic Sequence, Chapter: Reconfigurable Computing: Architectures, Tools and Applications, Lecture Notes in Comp. Sci. , 7806 13–24. ⇒173 [3] K. Benkrid, Liu Ying, A. Benkrid, A highly parameterized and efficient FPGA-based skeleton for pairwise biological sequence alignment, very large scale integration (VLSI) systems

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Modular strategic SMT solving with SMT-RAT

(1975), vol. 33 of LNCS , Springer, pp. 134–183. ⇒11, 12 [14] F. Corzilius, Virtual substitution in SMT solving , Diploma thesis, RWTH Aachen University, 2011. ⇒14 [15] F. Corzilius, Integrating Virtual Substitution into Strategic SMT Solving . PhD thesis, RWTH Aachen University, 2016. ⇒15 [16] F. Corzilius, G. Kremer, S. Junges, S. Schupp, E. Ábrahám, SMT-RAT: An open source C++ toolbox for strategic and parallel SMT solving. Proc. of SAT’15 (2015), vol. 9340 of LNCS , Springer, pp. 360–368. ⇒6, 7, 9, 15, 20 [17] F. Corzilius, U. Loup, S

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Monocular indoor localization techniques for smartphones

Recognition (CVPR'12), IEEE, Providence, RI, USA, 2012, pp. 3354-3361. ⇒ 210 [16] N. Gordon, Novel approach to nonlinear/non-gaussian bayesian state estimation, IEE Proceedings F (Radar and Signal Processing) 140 (1993) 107-113(6) ⇒205 [17] C. Harris, J. Pike, 3d positional integration from image sequences, Proc. of the Alvey Vision Conference, Manchester, UK, 1987, pp. 87-90. ⇒187 [18] C. Harris, M. Stephens, A combined corner and edge detector, Proc. of the 4th Alvey Vision Conference, Manchester, UK, 1988, pp. 147-151. ⇒190

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Diversity of Photogrammetric Approaches for Multi-Purpose Applications

References Aguilera, D., Lahoz, J., Finat, J., Martinez, J., Fernandez, J., & San Josem, J. (2006). Terrestrial laser scanning and low-cost aerial photogrammetry in the archeological modeling of a Jewish tanneries. International Archives of Photogram., Remote Sensing, Volume XXXVIII-5/W1 Alshawabkeh,Y., & Haala, N. (2004). Integration of Digital Photogrammetry and Laser Scanning for Heritage Documentation. International Archives of Photogrammetry and Remote Sensing, Volume XXXV, B5, Istambul Bakuła, K. (2010

Open access
Integration of Models of Building Interiors with Cadastral Data

References Aien A., Rajabifard A, Kalantari M., Williamson I. & Shojaei D. (2014): Development of XML Schemas for Implementation of a 3D Cadastral Data Model, 4th International Workshop on 3D Cadastres 9-11 November 2014, Dubai, United Arab Emirates El-Mekawy M., Paasch J. & Paulsson J. (2014): Integration of 3D Cadastre, 3D Property Formation and BIM in Sweden 4th International Workshop on 3D Cadastres, 9-11 November 2014, Dubai, United Arab Emirates García J.M.O., Soriano L.I.V., Velasco A. & Varés M. (2011

Open access
Evaluation of mobile applications for fitness training and physical activity in healthy low-trained people - A modular interdisciplinary framework

Abstract

Numerous mobile applications are available that aim at supporting sustainable physical activity and fitness training in sedentary or low-trained healthy people. However, the evaluation of the quality of these applications often suffers from severe shortcomings such as reduction to selective aspects, lack of theory or suboptimal methods. What is still missing, is a framework that integrates the insights of the relevant scientific disciplines.

In this paper, we propose an integrative framework comprising four modules: training, behavior change techniques, sensors and technology, and evaluation of effects. This framework allows to integrate insights from training science, exercise physiology, social psychology, computer science, and civil engineering as well as methodology. Furthermore, the framework can be flexibly adapted to the specific features of the mobile applications, e.g., regarding training goals and training methods or the relevant behavior change techniques as well as formative or summative evaluation.

Open access
Deformation analysis in central west Bulgaria using triangulation and GPS data

western United States ( Dong et al., 1998 ), central west Bulgaria ( Dimitrov and Georgiev, 2011 ), Central Valley, California ( Romero and Berber, 2018 ) and so on. Global Positioning System (GPS) data provide a good opportunity to study the current geodynamic processes, but the basic question arising in this case is how far the present-day results can be extrapolated back in time. An approach to address this question is to integrate GNSS with historical triangulation data in spite of the fact that the positional accuracy of the old triangulations is usually in the

Open access
Topographic surface modelling using raster grid datasets by GMT: example of the Kuril–Kamchatka Trench, Pacific Ocean

-quality mapping. The flexibility of the usage of the GMT modules for data modelling proves it to be an excellent tool set for the geomatics and cartographic data visualization. The GMT compatibility with Unix commands enables a cartographer to insert echo, rm Unix commands directly in the GMT code and to integrate GMT data modelling with further data processing to Matlab. Unix echo is a command available in shell Unix scripts. Its meaning is as follows. It puts the string texts passed as arguments to the visualization on the computer screen or printed output. In other words

Open access
Laminated Glass UHF-RFID Antenna for Automotive Applications

Abstract

This paper presents a new technique for UHF RFID antenna integration with a great impact on the automotive industry. The antenna has been optimized in HFSS and the prototype has been laminated and measured, in between two thin glass slices. The design takes into account the aspects related to the automotive safety glass, used for the windscreens in front of the automobiles. The paper proposes the use of aluminum sheets for the active element of the antenna together with three glass layers as substrates. This approach exhibits excellent results and could be applicable for vehicle long-range identification (AVI) or for cars tracking and localization.

Open access