Florian Skopik

Learn More
Web-based collaboration and virtual environments supported by various Web 2.0 concepts enable the application of numerous monitoring, mining and analysis tools to study human interactions and team formation processes. The composition of an effective team requires a balance between adequate skill fulfillment and sufficient team connectivity. The underlying(More)
Communication technologies, such as e-mail, instant messaging, discussion forums, blogs, and newsgroups connect people together, forming virtual communities. This concept is not only used for private purposes, but is also attracting attention in professional environments, allowing to consult a large group of experts. Due to the overwhelming size of such(More)
The global scale and distribution of companies have changed the economy and dynamics of businesses. Web-based collaborations and cross-organizational processes in such scenarios is challenging due to scale and temporary nature of collaborations. Furthermore, actor competencies evolve over time, thus requiring dynamic approaches for their management. Web(More)
Web-based environments typically span interactions between humans and software services. The management and automatic calculation of trust are among the key challenges of the future service-oriented Web. Trust management systems in large-scale systems, for example, social networks or service-oriented environments determine trust between actors by either(More)
Web services and service-oriented architecture (SOA) have become the de facto standard for designing distributed and loosely coupled applications. Many service-based applications demand for a mix of interactions between humans and Software-Based Services (SBS). An example is a process model comprising SBS and services provided by human actors. Such(More)
Crowdsourcing has emerged as an important paradigm of human problem solving techniques on the Web. More often than noticed, organizations outsource tasks to humans which cannot be processed by software. In this work we demonstrate the application of service-oriented architectures (SOA) for enterprise crowdsourcing. Crowdsourcing applications typically(More)
Threats to modern ICT systems are rapidly changing these days. Organizations are not mainly concerned about virus infestation, but increasingly need to deal with targeted attacks. This kind of attacks are specifically designed to stay below the radar of standard ICT security systems. As a consequence, vendors have begun to ship self-learning intrusion(More)
The smart grid initiative aims at transforming today’s public power grid into a flexible and intelligent energy utility. The basis for this advancement is the detailed monitoring of the grid status and energy consumption behavior of connected stakeholders in order to implement powerful control mechanisms, flexible billing processes, and unmatched(More)