A framework for formalizing inconsistencies and deviations in human-centered systems
ACM Transactions on Software Engineering and Methodology (TOSEM)
Authoritative sources in a hyperlinked environment
Journal of the ACM (JACM)
Graph-based ranking algorithms for e-mail expertise analysis
DMKD '03 Proceedings of the 8th ACM SIGMOD workshop on Research issues in data mining and knowledge discovery
Slash(dot) and burn: distributed moderation in a large online conversation space
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Toward autonomic web services trust and selection
Proceedings of the 2nd international conference on Service oriented computing
Secure distributed human computation
Proceedings of the 6th ACM conference on Electronic commerce
Discovering important nodes through graph entropy the case of Enron email database
Proceedings of the 3rd international workshop on Link discovery
Computer
Activity management as a web service
IBM Systems Journal
Expertise networks in online communities: structure and algorithms
Proceedings of the 16th international conference on World Wide Web
Internet-scale collection of human-reviewed data
Proceedings of the 16th international conference on World Wide Web
Dynamic Work Distribution in Workflow Management Systems: How to Balance Quality and Performance
Journal of Management Information Systems
Finding high-quality content in social media
WSDM '08 Proceedings of the 2008 International Conference on Web Search and Data Mining
Unifying Human and Software Services in Web-Scale Collaborations
IEEE Internet Computing
The very small world of the well-connected
Proceedings of the nineteenth ACM conference on Hypertext and hypermedia
The convergence of social and technological networks
Communications of the ACM - Remembering Jim Gray
Adaptable Pervasive Flows - An Emerging Technology for Pervasive Adaptation
SASOW '08 Proceedings of the 2008 Second IEEE International Conference on Self-Adaptive and Self-Organizing Systems Workshops
SERVICES '09 Proceedings of the 2009 Congress on Services - I
Plenty of Room Outside the Firm
IEEE Internet Computing
Routing betweenness centrality
Journal of the ACM (JACM)
A reference architecture for self-organizing service-oriented computing
ARCS'08 Proceedings of the 21st international conference on Architecture of computing systems
Networks, Crowds, and Markets: Reasoning About a Highly Connected World
Networks, Crowds, and Markets: Reasoning About a Highly Connected World
Modeling and mining of dynamic trust in complex service-oriented systems
Information Systems
Analyzing the Amazon Mechanical Turk marketplace
XRDS: Crossroads, The ACM Magazine for Students - Comp-YOU-Ter
Implementing process views in the web service environment
World Wide Web
Crowdsourcing systems on the World-Wide Web
Communications of the ACM
A human-centric runtime framework for mixed service-oriented systems
Distributed and Parallel Databases
Stimulating skill evolution in market-based crowdsourcing
BPM'11 Proceedings of the 9th international conference on Business process management
Resource and Agreement Management in Dynamic Crowdcomputing Environments
EDOC '11 Proceedings of the 2011 IEEE 15th International Enterprise Distributed Object Computing Conference
Expertise ranking using activity and contextual link measures
Data & Knowledge Engineering
Worklets: a service-oriented implementation of dynamic flexibility in workflows
ODBASE'06/OTM'06 Proceedings of the 2006 Confederated international conference on On the Move to Meaningful Internet Systems: CoopIS, DOA, GADA, and ODBASE - Volume Part I
Expert Discovery and Interactions in Mixed Service-Oriented Systems
IEEE Transactions on Services Computing
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Human-interactions are a substantial part of today's business processes. In service-oriented systems this has led to specifications such as WS-HumanTask and BPEL4People which aim at standardizing the interaction protocol between software processes and humans. These specifications received considerable attention from major industry players due to their extensibility and interoperability. Recently, crowdsourcing has emerged as a new paradigm for leveraging a human workforce using Web technologies. We argue that crowdsourcing techniques and platforms could benefit from XML-based standards such as WS-HumanTask and BPEL4People as these specifications allow for extensibility and cross-platform operation. However, most efforts to model human interactions using BPEL4People focus on relatively static role models for selecting the right person to interact with. Thus, BPEL4People is not well suited for specifying and executing processes involving crowdsourcing of tasks to online communities. Here, we extend BPEL4People with non-functional properties that allow to cope with the inherent dynamics of crowdsourcing processes. Such properties include human capabilities and the level of skills. We discuss the formation of social networks that are particularly beneficial for processing extended BPEL4People tasks. Furthermore, we present novel approaches for the automated assignment of tasks to a social group. The feasibility of our approach is shown through a proof of concept implementation of various concepts as well as simulations and experiments to evaluate our ranking and selection approach.