Learn More
the success of Wikipedia demonstrates that self-organizing production communities can produce high-quality information-based products. research on Wikipedia has proceeded largely atheoretically, focusing on (1) the diversity in members’ knowledge bases as a determinant of Wikipedia’s content quality, (2) the task-related conflicts that occur during the(More)
Digital citizen science offers a low-cost way to strengthen the scientific infrastructure, and engage members of the public in science. It is based on two pillars:(1)a technological pillar, which involves developing computer systems to manage large amounts of distributed resources, and (2) a motivational pillar, which involves attracting and retaining(More)
R ecommender systems are a key component of successful online stores such as Amazon.com, Epinions.com, and Netflix as they help users sort through a site and find relevant information (we discuss the approach behind each of these examples in the " Commercial Social Recommender Systems " sidebar). Since the emergence of social (or collab-orative) filtering(More)
Wikis are designed to support collaborative editing, without focusing on individual contribution, such that it is not straightforward to determine who contributed to a specific page. However, as wikis are increasingly adopted in settings such as business, government and education, where editors are largely driven by career goals, there is a perceived need(More)
Volunteer computing is a powerful way to harness distributed resources to perform large-scale tasks, similarly to other types of community-based initiatives. Volunteer computing is based on two pillars: the first is computational - allocating and managing large computing tasks; the second is participative - making large numbers of individuals volunteer(More)
We propose and test a framework of the antecedents of contribution in two technology-mediated citizen science projects, with different degrees of task granularity. Comparing earlier findings on the motivations of volunteers in a web-based image analysis project (high granularity), with new findings on the motivations of volunteers in a volunteer computing(More)
The success of Wikipedia and the relative high quality of its articles seem to contradict conventional wisdom. Recent studies have begun shedding light on the processes contributing to Wikipedia's success, highlighting the role of coordination and contribution inequality. In this study, we expand on these works in two ways. First, we make a distinction(More)
Online citizen science offers a low-cost way to strengthen the infrastructure for scientific research and engage members of the public in science. As the sustainability of online citizen science projects depends on volunteers who contribute their skills, time, and energy, the objective of this study is to investigate effects of motivational factors on the(More)