Logo des Repositoriums

Auflistung nach Schlagwort "social networks"

1 - 3 von 3
  • Workshopbeitrag
    Structuring and Exploring User Behavioral Patterns in Social Media Traces
    (Mensch und Computer 2020 - Workshopband, 2020) Herder, Eelco; Roßner, Daniel; Atzenbeck, Claus
    User behavior and the resulting behavioral data forms the basis of personalized feeds, recommendations and advertisements in social networks such as Facebook. These platforms are now required to provide users with their personal data. However, these dumps with chronological data in different files do not provide users insight in overarching themes and connections in their online behavior. In this paper, we discuss the development and preliminary evaluation of an exploratory interface for visual data exploration. First insights include that the less obvious, more associative and obscure connections are more interesting and relevant to the user than very close semantic or temporal connections.
  • Konferenzbeitrag
    Weaving Space into the Web of Trust: An Asymmetric Spatial Trust Model for Social Networks
    (The Social Semantic Web 2007 – Proceedings of the 1st Conference on Social Semantic Web (CSSW), 2007) Bishr, Mohamed
    The proliferation of Geo-Information (GI) production in web-based collaboration environments such as mapping mashups built on top of mapping APIs such as GoogleMaps API poses new challenges to GI Science. In this environment, millions of users are not only consumers of GI but they are also producers. A major challenge is how to manage this huge flow of information and identify high value contributions while discarding others. The social nature of the collaborative approaches to GI provides the inspiration for innovative solutions. In this paper, we propose a novel spatial trust model for social networks. This model is part of our research to formalize the spatio-temporal regularities of trust in social networks. The presented model provides a metric for trust as a proxy for GI quality to assess the value of collaborative contributions. We also introduce the underlying network for the model, which is a hybrid network structure for collaborative GI applications based on affiliation networks and one-mood continuous trust networks. Trust calculation in the affiliation network takes into account the geographic distance between the actors and their information contributions –also known as events–, while the one-mood network does not. This leads to an asymmetric model with respect to the representation of space.
  • Zeitschriftenartikel
    Why Do People Use Digital Applications? A Qualitative Analysis of Usage Goals and Psychological Need Fulfillment
    (i-com: Vol. 18, No. 3, 2019) Zimmermann, Sina; Gerber, Nina
    For many people, digital applications, especially messengers, social networks and cloud services, have become an important part of their daily life. Although most users express privacy concerns regarding the use of digital applications, their concerns do not prevent users from sharing personal information with such applications. A reason for this seemingly paradoxical behavior could be that users pursue certain goals when they are using these applications, which possibly overweigh their privacy concerns. We thus conducted semi-structured interviews with 17 users, with most of them being psychology students, to investigate why they use digital applications (i. e., messengers, social networks, cloud services, digital assistants, and Smart TVs) and what psychological needs they aim to fulfill by using these applications. Our study further included a card sorting task, in which the participants ranked the relevance of ten psychological needs for each of the investigated digital applications they reported to use. Using open coding for the analysis of the interview questions, and a quantitative analysis of the card sorting task, we identified four main psychological needs people aim to fulfill by using digital applications: (1) relatedness-belongingness, (2) competence-effectance, (3) pleasure-stimulation, and (4) autonomy-independence, and four additional psychological needs which are application-specific: (5) security, (6) popularity-influence, (7) self-actualization-meaning, and (8) money-luxury. Besides this, we identified several concerns (e. g., data abuse, privacy invasion, and eavesdropping) and reasons why people refrain from using certain digital applications (i. e., the lack of benefits, malfunction, high costs, and the fear of being eavesdropped on). The fulfillment of the psychological needs seem to overweigh those privacy concerns and play a major role for people’s intention to use digital applications, which is why users will not use alternative privacy friendly applications if these do not allow for the fulfillment of those needs in the same way established applications do.