Crowdsourcing

Part of: Impact of Computing

Harnessing the Crowd Crowdsourcing is the practice of obtaining input, ideas, content, or funding by enlisting the services of a large number of people, typically via the internet. The web makes it possible to coordinate contributions from strangers around the world at very low cost. Why Crowdsourcing Works - Scale : thousands of small contributions add up to something no individual could build. - Diversity : many perspectives surface ideas an expert team would miss. - Speed : many people working in parallel solve problems quickly. Classic examples include collaborative encyclopedias, citizen-science projects that classify galaxies or count wildlife, crowdfunding platforms that raise money for projects, and product reviews that aggregate many opinions. Strengths and Limits Crowdsourcing can democratize problem-solving, but quality control is a challenge: contributions vary in accuracy, and the crowd can be manipulated. Good systems combine crowd input with review, voting, or reputation to keep quality high. Key Takeaways - Crowdsourcing gathers contributions from many people, usually online. - It excels at scale, diversity, and speed . - Crowdfunding is crowdsourcing applied to mon

Challenge: Average the Crowd