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Mining the silent members, also called lurkers, of an online community has been recognized as an important problem that accompanies the extensive use of social networks. Existing solutions to the ranking of lurkers can aid understanding the lurking behaviors in social networks, however they ignore any information concerning the time dimension. In this work we push forward research in lurker mining...
Wikipedia articles see bursts of update activity whenever a topic is of more interest to the community or has somehow become controversial. Analyzing when and what changes are made can, thus, give us an idea of how the community feels about particular subjects. In this paper we present Pop Culture, a system that provides a visualization of Wikipedia's edits that allows us to reflect on how different...
The paper examines the role played by the most productive members of social media systems on leading the project and influencing the degree of project structuration. The paper focuses on findings of a large computational social science project that examines Wikipedia.1
A community of interest is helpful to professionals to assemble around a common interest and exchange information and experiences. However, the most used communities are too general for some specific areas and they are unable to store and classify relevant information for the community users. In this paper, we propose an approach that can be integrated with existent communities of practice. Moreover,...
Nowadays Wikis are considered to be a useful tool for teaching and learning. However, well-known Wiki solutions do not provide sufficient facilities for analyzing and exploring networked collaboration. In this paper we present a method for detecting and visualizing structural patterns of collaboration in Wikis. Furthermore we summarize findings from applying our approach on a smaller and two larger...
Wiki systems form a subclass of the more general Open Collaborative Authoring Systems, where content is created and maintained by a user community. The ability of anyone to edit the content is, at the same time, their strength and their weakness. Anyone can write documents that improve the value of the wiki-system, but at the same time, anyone can also introduce errors into these documents, by accident...
We propose a mixed logical and game theoretic framework for modeling decision making under the potential for deception. This framework is most appropriate for online communities in which a decision maker must act upon information being provided by various sources with various different motivations. We show that in the simple three-player game we propose there are always equilibria in pure strategies...
Wikipedia arguably is one of the most visible examples of the use of social media to enlist volunteers to contribute to a social good. Wikipedia was created to provide an accessible, encyclopedic information resource for people of all nations and cultures. Previous research has shown potential for unacknowledged cultural bias in socio-technical systems. However, the extent to which the technological...
Virtual Communities for Innovations (VCI) are becoming increasingly popular as platforms for firms to engage customers in generating new ideas. While several studies have explored the various motivations of user participation in VCI, the relationship between the motivations and the outcome of interest - the quality of the ideas - has not been explored. Scholars and practitioners have a strong interest...
In this paper we propose a simple pragmatic technique, called fladget, for enabling end-users to mashup multimedia content within Wiki pages of their community peers. Since the fladget considers Wiki as a content as well as mashup repository service, Wiki RESTful API is proposed. The fladget extends functionality of existing plugin mechanism, so it can use rich-client technology for interaction with...
Users of Social Network Services(SNS) can sometimes enter into heated discussions, which prompt those users to concentrate on a single issue and lose track of the actual theme. We believe that it would be beneficial for users and visitors to present information to help understand the gist of the discussion at a glance. As described in this paper, we propose a system that presents a gist of a thread...
We detail the methodology of 'trace ethnography', which combines the richness of participant- observation with the wealth of data in logs so as to reconstruct patterns and practices of users in distributed sociotechnical systems. Trace ethnography is a flexible, powerful technique that is able to capture many distributed phenomena that are otherwise difficult to study. Our approach integrates and...
We propose a framework for discovery of collaborative community structure in Wiki-based knowledge repositories based on raw-content generation analysis. We leverage topic modelling in order to capture agreement and opposition of contributors and analyze these multi-modal relations to map communities in the contributor base. The key steps of our approach include (i) modeling of pair wise variable-strength...
The Internet offers an enormous potential for all kinds of services, from Web search to online shopping, from social networks to multi-player online games,from online auctions to online encyclopedias. Many of these services thrive due to a vibrant community support. Making services open to community support offers great potentials but makes them also vulnerable to malicious behavior. Malicious behavior...
In this study we analyse the structure of a particular form of collective decision-making in Wikipedia, i.e. decisions regarding content inclusion and deletion. Wikipedia's official guidelines require that only topics that meet "notability" standards be included with a dedicated article. Decisions as to whether a topic is "notable" are made by groups of self-appointed reviewers,...
Wikipedia, the “free encyclopedia that anyone can edit”, has evolved substantially over the years according to the editors' needs for more coordination and better quality management. In particular, metadata in the form of “templates” added to pages have come to play a critical role, working in a sense like stigmergic “stigmata” or “signals” which editors use to orient the efforts of their colleagues...
Most recently, the use of collaboration element within information behavior research namely Collaborative Information Behavior (CIB) has been increasing. In addition, the success of wiki-based, large-scale, open collaborative content creation systems such as Wikipedia has aroused increasing interests of studies on their collaborative model. In contrast to previous related work, this paper focuses...
Online work projects, from open source to wikipedia, have emerged as an important phenomenon. These communities offer exciting opportunities to investigate social processes because they leave traces of their activity over time. We argue that the rapid visibility of others' work afforded by the information systems used by these projects reaches out and attracts the attention of others who are peripherally...
The digital age has brought about new platforms for collaboration which have provided interesting and effective ways of enabling people to engage in a wide variety of socially-driven activities. One only needs to observe the many free/libre open source software projects on the web, where millions of connected individuals actively participate in the development and deployment of a wide range of software...
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