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The annual EXPO of the Department of Informatics at University Hamburg is an exhibition of student projects including Study-, Bachelor- and Master theses. This year our student Alexander Oeser has successfully presented his student project “Enrich an API reference documentation with Software Development Screencasts” supervised by Prof. Dr. Walid Maalej and Mathias Ellmann. The research aimed to answer the question on whether a software development screencast can enrich an API reference documentation as the Java SDK 6. The project also aimed to study how to identify a software development screencast from other videos which are located on YouTube. Alexander Oeser has used different algorithms as the Jaccard, Cosine or LSI algorithm to identify those and to assign the screencasts to different categories (system set-up, code compilation or programming). Finally he made a similarity analysis that provide the best 20 API documents from all 9000 existing documents of the Java SDK 6. He will extend his study in his master thesis to get deeper insights of the overall research object which he will face soon.
On the upcoming Wednesday (08.06.) in Room G-021, we will host an information event about our teaching project M-Lab, offered for bachelor and master students. We are going to answer all your questions and show you project results of previous courses.
In this “lighthouse project”, student teams will develop real innovative Apps for real customers from industry, under real project conditions, and use the newest technology.
Feel free to share this information with your colleagues!
Date: Wednesday (08.06.)
Time: 11:45 – 12:30
Where: Room G-021 / G-022
Prof. Maalej gave an invited talk on a�zMining User Reviews in the App Storea�? as a part of The 36th CREST Open WorkshopA� (COW36) at the University College London.
The topic of the workshop was App Store Mining.A� App stores provide a rich source of information for software engineering research, including technical information such as the app binaries, releases and updates as well as business information such as customer reviews, pricing, and popularity. This workshop will bring together software engineering researchers from all over the world to discuss and develop the emerging research agenda in App Store Analysis.
Internationally recognized researchersA�researchers in the field participated in the workshop including Prof. Andreas Zeller, Prof. Hark Harmann, Prof. Ahmad Hassan, and others. From MOBIS, Christoph Stanik also attended the workshop and participated in the discussions. The agenda and the complete list of attendants is available on the workshop website.
The workshop is part of the CREST Open Workshop (COW) program, which started in 2009 and has so far attracted 548 different attendees from 218 different institutions spread over 42 countries. An archive of talks including slides and videos will be available on the workshop website soon. The workshop was also accompanied by a live blogging by Dr Black.
- COW36 website
- Live blog
- RE’14 paper: How Do Users Like this Feature? A Fine Grained Sentiment Analysis of App Review
- RE’13 paper: User Feedback in the AppStore: An Empirical Study
Prof. Walid Maalej, the head of MOBIS, is a winner of the “2014 Software Engineering Innovation Foundation Award” by Microsoft Research.
The award is coupled with the project: STIMME- Systematic Analysis of User Reviews and Usage Data for Windows Mobile Apps.A�The SEIF award supports academic research in software engineering technologies, tools, practices, and teaching methods.
The SEIF 2014 Award is granted by Microsoft Research Connections Computer Science, in conjunction with the Research in Software Engineering Group, the Sensing and Energy Research Group, and Global Foundation Services.
More info at Microsoft Research.
The client acceptance test is the final and most exciting event of the lighthouse project course M-Lab. During this event the students will demonstrate their “ready-to-use” Apps to the customers, who will judge the results.A�The client acceptance tests will be a public event. Everyone interested is welcome to join.A�
Time: Thursday 11th July 2013 at 16:00
Place: Seminar room C-221, building C, the Informatics Campus of the UHH in Hamburg-Stellingen.
- 16:00 Opening remarks by Prof. Maalej and the instructor team
- 16:10 a�?Social and Sailing Navigationa�? by the Presentec team
- 16:30 a�?Remote Control for an in-car Infotainment Systema�? by the Volkswagen team
- 16:50 a�?Community Assessment of Telecommunication Service Qualitya�? by the I.C.H.N. team
- 17:10 a�?Sale-Support of Special Financial Productsa�? by the Capgemini team
- 17:30 Get together with snacks, drinks, and an exhibition of the apps
“User Feedback in the AppStore: An Empirical Study” is the title of the new paper by Prof. Maalej and Dennis Pagano which has been recently accepted for publication at the renowned conference “IEEE International Conference on Requirements Engineering” RE 2013.
This research will be presented by Prof. Maalej at RE 2013 in Rio De Janeiro.A�
Dennis Pagano and Walid Maalej
Application distribution platforms – or app stores – such as Google Play or Apple AppStore allow users to submit feedback in form of ratings and reviews to downloaded applications. In the last few years, these platforms have become very popular to both application developers and users. However, their real potential for and impact on requirements engineering processes are not yet well understood. This paper reports on an exploratory study, which analyzes over one million reviews from the Apple AppStore. We investigated how and when users provide feedback, inspected the feedback content, and analyzed its impact on the user community. We found that most of the feedback is provided shortly after new releases, with a quickly decreasing frequency over time. Reviews typically contain multiple topics, such as user experience, bug reports, and feature requests. The quality and constructiveness vary widely, from helpful advices and innovative ideas to insulting offenses. Feedback content has an impact on download numbers: positive messages usually lead to better ratings and vice versa. Negative feedback such as shortcomings is typically destructive and misses context details and user experience. We discuss our findings and their impact on software and requirements engineering teams.