Deutsch Intern
    Lehrstuhl für Informatik III

    Research Area: Social Network Analysis

    We deal within the CAN group with the research field "Social Network Analysis".

    In online social networks (OSNs) users voluntarily provide information about themselves, their interests, their friends and their activities, especially about their current situation or exceptional events. Nowadays these so called social signals are ubiquitous and can not only be collected from OSNs (e.g., friendships, interests, trust-relevant metadata), but also from applications (e.g., messaging or call patterns) and sensors (e.g., location). Social awareness harvests these signals, extracts useful and re-usable information (e.g., users’ social relationships, activity patterns, and interests), and exploits them in order to improve a service.

    We develop new metrics, in order to identify important nodes in the social network. We investigate new communication paradigms emerging in group based messenger services. We optimize traffic management mechanisms by utilizing the information provided in social networks.

    Researchers:

    Dipl.-Inform. Michael Seufert,
    Anika Schwind M.Sc.

    We are proud that in 2016 we have passed the great threshold of 1500 chats. Thus, we have gained chats and important data, which are used for scientific work. Thanks to all for contributing.

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    We implemented WhatsAnalyzer to investigate how group-based communication changes the activity patterns of multiple users. When evaluating communication technologies, models from the past (e.g., Poisson arrival process of end-to-end voice calls) cannot be directly used for nowadays applications (e.g., WhatsApp messages are exchanged in groups of users) and need to be adapted to integrate interaction of users on a smaller time scale. Therefore, we analyze the group communication behavior in WhatsApp and investigate possible implications of this emerging communication paradigm on networking technology.

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    Tool: WhatsAnalyzer

    WhatsAnalyzer is a web-based tool to collect and analyze chat histories of the mobile messaging application WhatsApp. To protect the users’ privacy, the chats are anonymized during processing and only stored in that form. We implemented WhatsAnalyzer to investigate how group-based communication changes the activity patterns of multiple users. When evaluating communication technologies, models from the past (e.g., Poisson arrival process of end-to-end voice calls) cannot be directly used for nowadays applications (e.g., WhatsApp messages are exchanged in groups of users) and need to be adapted to integrate interaction of users on a smaller time scale. Therefore, we analyze the group communication behavior in WhatsApp and investigate possible implications of this emerging communication paradigm on networking technology.

    The tool is open for everyone and can easily be used by every WhatsApp user. The user just has to select a chat from WhatsApp and send it to whatsanalyzer@uni-wuerzburg.de via email. As response, WhatsAnalyzer sends back an e-mail to the user including a link to his or her analysis visualized on a webpage. 

    For more information about WhatsAnalyzer, please visit the public webpage. If you have any further questions, feel free to send an e-mail to WhatsAnalyzer team.

    Publications

    2016

    • Seufert, M., Hoßfeld, T., Schwind, A., Burger, V., Tran-Gia, P.: Group-based Communication in WhatsApp. 1st IFIP Internet of People Workshop (IoP). , Vienna, Austria (2016).
       

    2015

    • Petropoulos, G., Lareida, A., Soursos, S., Seufert, M., Burger, V., Stiller, B.: WiFi Offloading and Socially Aware Prefetching on Augmented Home Routers, (2015).
       
    • Seufert, M., Schwind, A., Hoßfeld, T., Tran-Gia, P.: Analysis of Group-based Communication in WhatsApp. 7th EAI International Conference on Mobile Networks and Management (MONAMI). , Santander, Spain (2015).
       

    2014

    • Hoßfeld, T., Burger, V., Hinrichsen, H., Hirth, M., Tran-Gia, P.: On the computation of entropy production in stationary social networks. Social Network Analysis and Mining. 4, (2014).
       

    Student Works and Theses

    2017

    • Katzmareck, M.: Identifying Social Networks behind Instant Messaging, (2017).
       
    • Waigand, M.: Towards Traffic Management for Mobile Group-based Communication in WhatsApp, (2017).
       

    2016

    • Schwind, A.: WhatsAnalyzer: a Tool for Collecting and Analyzing WhatsApp Chats, (2016).
       

    2015

    • Schwind, A.: Classification and Modeling of Group-based Communication in WhatsApp, (2015).
       
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    Contact

    Lehrstuhl für Informatik III (Kommunikationsnetze)
    Am Hubland
    97074 Würzburg

    Phone: +49 931 31-86631
    Email

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    Hubland Süd, Geb. M2