We apply the "wisdom of the crowd" idea to human category learning, using a simple approach that combines people's categorization decisions by taking the majority decision. We first show that the aggregated crowd category learning behavior found by this method performs well, learning categories more quickly than most or all individuals…

Designed to determine whether abstract and concrete concepts are classified similarly, this study used three separate experiments to explore the vertical and horizontal dimensions used by computer scientists to categorize the common concepts of their field. It found that concrete concept categorization operates over a wider range than previously…