Amazon Mechanical Turk

• Provides a managed human task outsourcing system
• Provides a set of APIs and a marketplace to outsource jobs to human beings
• Allows requesters to post Human Intelligence Tasks (HITs) to a marketplace
• Tasks are completed by workers, who earn money for it
• Pay per task, perfect for tasks suited to humans rather than ML
• Qualification: worker attribute, we can require a test. A qualification can be a requirement to complete HITs
• Great for data collection, manual processing, image classification