Algorithm visualization (AV) technology graphically illustrates how algorithms work. Despite the intuitive appeal of the technology, it has failed to catch on in mainstream computer science education.

 “Algorithms are able to do a huge number of tasks and the number of tasks that they are able to do is expanding practically every day,” said researcher Eric Bogert from the University of Georgia. “It seems like there’s a bias towards leaning more heavily on algorithms as a task gets harder and that effect is stronger than the bias towards relying on advice from other people,” Bogert added.

For the study, published in the journal Scientific Reports, the team involved 1,500 individuals evaluating photographs. The team asked volunteers to count the number of people in a photograph of a crowd and supplied suggestions that were generated by a group of other people and suggestions generated by an algorithm.

As the number of people in the photograph expanded, counting became more difficult and people were more likely to follow the suggestion generated by an algorithm rather than count themselves or follow the “wisdom of the crowd”, the researcher said. According to the researcher, the choice of counting as the trial task was an important one because the number of people in the photo makes the task objectively harder as it increases.

 It also is the type of task that laypeople expect computers to be good at. Facial recognition and hiring algorithms have come under scrutiny in recent years as well because their use has revealed cultural biases in the way they were built, which can cause inaccuracies when matching faces to identities or screening for qualified job candidates, the team said.

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