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To manage information quality (IQ) effectively, one needs to know how IQ changes over time, what causes it to change, and whether the changes can be predicted. In this paper we analyze the structure of IQ change in Wikipedia, an open, collaborative general encyclopedia. We found several patterns in Wikipedia's IQ process trajectories and linked them to article types. Drawing on the results of our analysis, we develop a general model of IQ change that can be used for reasoning about IQ dynamics in many different settings, including traditional databases and information repositories.

Research funding decisions and research evaluation are currently almost exclusively based on peer-review. Peer-review is well suited to ensure quality, but helps little to achieve impact. ParticipatoryResearch adds the stakeholder dimension to research funding and evaluation. In an ideal world those research projects should get funded which will ultimately benefit its stakeholders most. Individuals (such as peer reviewers) can often hardly realistically access the potential benefit of a certain research proposal. Better results can be achieved by relying on the intelligence of a whole community by employing prediction markets (being the best general institutions we know for aggregating information). In such a prediction market for research ideas stakeholders bet or vote about which research results will benefit them most. The highest-ranked research ideas according to the stakeholder benefit should ultimately get funded.

KenYersel is a community organisation which promotes informed and high quality discussions of critical issues. We combine argument visualisation and web-based technology with established participatory discussion techniques. These are used to facilitate discussions, providing a rich understanding as the basis for rational and accountable decision making. Central to the effectiveness of this process is the building of community. Our unique methodology comes from many years experience working with a wide variety of community groups, businesses and universities. The results have considerable authority as they come from the concerted effort of real critical thinking by large number of people.