I am a Ph.D. Student with the Software Engineering Research Group (SERG) at the Department of Computer Science, Lund University, Sweden. I am funded by the Industrial Excellence Centre for Embedded Applications Software Engineering (EASE), working within Theme D - Aligning Requirements and Verification (Project D.2 Large-scale Test to Requirements Linking).
My main research contributions concern using information retrieval techniques to semi-automatically create traces between software artifacts. Visit my TraceRepo, a repository of publications covering related research until 2011. In September 2012 I presented my (cumulative) licentiate thesis on the topic: Advancing Trace Recovery Evaluation – Applied Information Retrieval in a Software Engineering Context. More recently I have authored a book chapter on using recommendation systems for issue management.
I joined SERG in January 2010. Prior to that I worked three years at ABB in Malmö, working first as a thesis student and then as a development engineer. I was part of a team responsible for editor and compiler development in the 800xA automation system. My experiences include:
- IDE development for DSLs (IEC 61131-3)
- C/C++ and C# development
- Regression testing and test automation
- Safety-critical development (SIL 2)
- Safety certification (IEC 61508 and IEC 61511)
- Embedded systems
- Legacy code
I am currently on a study-leave from ABB, working full-time with my PhD studies.
My research interests are related to information overload involved in large-scale software development. I have published more than 15 papers on the topic. More specifically, my interests include:
- alignment of requirements and test
- mining software repositories
- trace capture/recovery
- software and traceability visualization
- information retrieval and findability
- recommendation systems
- machine learning
- issue management
My favorite tools of the trade are RapidMiner, R, yEd, Gephi, Lucene, and Weka.
I try to maintain Wikipedia pages related to my research, especially in Swedish. Start browsing from spårbarhetsåterhämtning if you are interested. I am a dedicated wiki incrementalist. Currently I try to improve the Swedish pages on recommendation systems.
I am always looking for students interested in master thesis projects related to my interests, take a look at the project proposals for inspiration.
- In print:
- Bjarnason, Unterkalmsteiner, Engström, and Borg. An Industrial Case Study on Test Cases as Requirements, To appear in the Proc. of the 16th International Conference on Agile Software Development, Helsinki, Finland, 2015.
- Under revision:
- Journal paper on prediction of issue resolution time.
- Journal paper on automated assignment of issue reports.
- In submission:
- Guidelines for tuning software engineering tools using experiments.
- Ongoing, not published:
- Reporting a case study on tool support for impact analysis, based on a combination of IR-based trace recovery techniques and network analysis. First in situ study of impact analysis tool in proprietary context.
- Reporting a survey of impact analysis in safety-critical domains. 100+ answers from different domains.
- Qualitative analysis of engineers' experienced challenges when conducting change impact analysis.
- Exploring safety certifiers' perspectives on traceability as mandated by safety standards.