Collective intelligence (CI) is shared or group intelligence (GI) that emerges from the collaboration, collective efforts, and competition of many individuals and appears in consensus decision making. The term appears in sociobiology, political science and in context of mass peer review and crowdsourcing applications. It may involve consensus, social capital and formalisms such as voting systems, social media and other means of quantifying mass activity. Collective IQ is a measure of collective intelligence, although it is often used interchangeably with the term collective intelligence. Collective intelligence has also been attributed to bacteria and animals.

Cliff Joslyn is an American mathematician, cognitive scientist, and cybernetician. He is the Chief Knowledge Scientist at the Pacific Northwest National Laboratory in Seattle, and visiting professor of systems science at Binghamton University.