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Auflistung nach Autor:in "Amann, Sven"

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  • Konferenzbeitrag
    CodeMatch
    (Software Engineering und Software Management 2018, 2018) Glanz, Leonid; Amann, Sven; Eichberg, Michael; Reif, Michael; Mezini, Mira
    ESEC/FSE 2017 Proceedings of the 2017 11th Joint Meeting on Foundations of Software Engineering. Popular mobile apps are regularly installed by millions of users. This fact attracts malicious actors to create altered, repackaged versions of those apps to steal the original owner’s revenue or to trick users to infect their devices with malware. Detecting such repackaged apps is, therefore, necessary for a secure and viable app market but is challenging due to the use of code obfuscation and the widespread usage of libraries. Due to the recent fact, non-repackaged, legitimate apps often share a majority of their code base and are classified as repackaged by state-of-the-art detectors. We, therefore, propose a new library filtering approach that relies on code representations at five different abstraction levels to achieve resilience against code obfuscation. Additionally, we propose to use the most abstract representation in combination with fuzzy-hashing to detect repackaged apps. Our evaluation shows that the overall approach leads to a better detection rate up to 50%.
  • Konferenzbeitrag
    An empirical study on program comprehension with reactive programming
    (Software Engineering 2016, 2016) Salvaneschi, Guido; Amann, Sven; Proksch, Sebastian; Mezini, Mira
    Starting from the first investigations with strictly functional languages, reactive programming has been proposed as the programming paradigm for reactive applications. The advantages of designs based on this style over designs based on the Observer design pattern have been studied for a long time. Over the years, researchers have enriched reactive languages with more powerful abstractions, embedded these abstractions into mainstream languages - including object-oriented languages - and applied reactive programming to several domains, like GUIs, animations, Web applications, robotics, and sensor networks. However, an important assumption behind this line of research - that, beside other advantages, reactive programming makes a wide class of otherwise cumbersome applications more comprehensible - has never been evaluated. In this paper, we present the design and the results of the first empirical study that evaluates the effect of reactive programming on comprehensibility compared to the traditional object-oriented style with the Observer design pattern. Results confirm the conjecture that comprehensibility is enhanced by reactive programming. In the experiment, the reactive programming group significantly outperforms the other group.
  • Konferenzbeitrag
    Investigating Next Steps in Static API-Misuse Detection
    (Software Engineering 2020, 2020) Amann, Sven; Nguyen, Hoan Anh; Nadi, Sarah; Nguyen, Tien N.; Mezini, Mira