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Auflistung nach Schlagwort "crowdsourcing"

1 - 5 von 5
  • Konferenzbeitrag
    Code Defenders
    (Software Engineering und Software Management 2018, 2018) Rojas, José Miguel; White, Thomas D.; Clegg, Benjamin S.; Fraser, Gordon
    This paper was presented at the 39th International Conference on Software Engineering (ICSE 2017), where it received an ACM SIGSOFT Distinguished Paper Award: Writing good software tests is difficult and not every developer's favorite occupation. Mutation testing aims to help by seeding artificial faults (mutants) that good tests should identify, and test generation tools help by providing automatically generated tests. However, mutation tools tend to produce huge numbers of mutants, many of which are trivial, redundant, or semantically equivalent to the original program; automated test generation tools tend to produce tests that achieve good code coverage, but are otherwise weak and have no clear purpose. In this paper, we present an approach based on gamification and crowdsourcing to produce better software tests and mutants: The Code Defenders web-based game lets teams of players compete over a program, where attackers try to create subtle mutants, which the defenders try to counter by writing strong tests. Experiments in controlled and crowdsourced scenarios reveal that writing tests as part of the game is more enjoyable, and that playing Code Defenders results in stronger test suites and mutants than those produced by automated tools.
  • Zeitschriftenartikel
    Collective organization of discourse expertise using information technology – CODE IT!
    (it - Information Technology: Vol. 60, No. 1, 2018) Paul, Katharina T.
    This paper offers a short report on a participatory citizen science project and offers some reflections on the lessons learned. In particular, we report on our aims and methods, and the development and use of a web application that we designed to enable a collective analysis of press releases allowing a high number of users. Specifically, we give a brief account of the HTML- and PHP-based platform, which was used to analyze and review press releases on a controversial vaccine.
  • Textdokument
    A Crowdsourcing-based Learning Approach to activate Active Learning
    (Bildungsräume 2017, 2017) Koschmider, Agnes; Schaarschmidt, Mario
    Usually students consume learning material and write an exam at the end of the lecture. Such a process follows a summative learning pattern, which can be considered a standard approach at universities. Studies in educational theory indicate, however, that active involvement – instead of passive consumption – should be fostered in learning since active learning proved to be superior to passive learning. To benefit from active learning arrangements, we implemented an active involvement of students into the exam preparation for an introduction to Information Systems course at the University of Cologne. Students were asked to design exercises and provide solutions to selected topics. Subsequently, they received feedback to their submissions, which supports the self-assessment on the subject. An empirical evaluation shows general agreement for such active involvement of students and also indicates that students participating in the task creation are more likely to pass an exam than students denying the participation. This paper presents our crowdsourcing-based learning approach and discusses challenges for its implementation.
  • Workshopbeitrag
    Picture Based Food Recommendation
    (Mensch und Computer 2016 - Tagungsband, 2016) Meißner, Hanns; Stahl, Michael
    Das Teilen von Fotografien aller Art ist ein wichtiger Bestandteil in sozialen Medien geworden. Gerade das Phänomen Foodporn, Fotos von schmackhaft angerichteten Speisen, erlebt in den letzten Jahren auf Plattformen wie Facebook oder Instagram einen regelrechten Boom. Der in diesem Paper vorgestellte Prototyp eines bildbasierten Recommender-Systems nutzt solche Fotos als Input und Output. Der Nutzerinput besteht lediglich aus einem “like” oder “dislike” eines Foodporn-Fotos. Der Recommender soll Rezepte vorschlagen, die dem persönlichen Geschmack und aktuellen Bedürfnis auf Essen des Nutzers entsprechen, indem er nutzerspezifische Vorlieben erlernt, und dabei hilft geeignete Kochideen zu gewinnen. Die Datengrundlage schafft ein Crowdsourcing-Ansatz zum Sammeln von Tags zu den jeweiligen Fotos der in das System integriert ist. Die gängigsten Gamification-Features wurden in einer Community-Komponente eingebaut, um die User für die Mitwirkung am Datensatz zu motivieren. In einer tagebuchähnlichen Langzeitstudie wurde das neuartige Recommender-Konzept untersucht und erfolgreich validiert. Die Gamification-Features erzielten einen positiven Effekt. Künftiges Forschungsinteresse könnten auf der Weiterentwicklung und Evaluation des Recommender-Algorithmus und der Anwendung an sich sowie der Umsetzung als native mobile App liegen.
  • Konferenzbeitrag
    Scalable Design Evaluation for Everyone! Designing Configuration Systems for Crowd-Feedback Request Generation
    (Mensch und Computer 2023 - Tagungsband, 2023) Haug, Saskia; Sommerrock, Sophia; Benke, Ivo; Maedche, Alexander
    Design evaluation is an important step during software development to ensure users’ requirements are met. Crowd feedback represents an effective approach to tackling scalability issues of traditional design evaluation methods. Crowd-feedback systems are usually developed for a fixed use case and designers lack knowledge on how to build individual crowd-feedback systems by themselves. Consequently, they are rarely applied in practice. To address this challenge, we propose the design of a configuration system to support designers in creating individual crowd-feedback requests. By conducting expert interviews (N=14) and an exploratory literature review, we derive four design rationales for such configuration systems and propose a prototypical configuration system instantiation. We evaluate this instantiation in exploratory focus groups (N=10). The results show that feedback requesters appreciate guidance. However, the configuration system needs to find a balance between complexity and flexibility. With our research, we contribute with a generalizable concept to support feedback requesters to create individualized crowd-feedback requests to support scalable design evaluation for everyone.