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Will AI Grade Your Next Test?


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A teacher works with an AI assistant.

Stanford University professor Chelsea Finn and her team built a neural network that analyzed and learned from a decade of exams.

Credit: Juan Bernabeu

Stanford University researchers have developed an artificial intelligence (AI) system designed to provide automated feedback to students taking the online Code in Place course.

The researchers trained a neural network to analyze computer code using examples from a decade's worth of midterm exams featuring programming exercises.

After the system offered 16,000 pieces of feedback to students this spring, the researchers found students agreed with the AI feedback 97.9% of the time, and with feedback from human instructors 96.7% of the time.

Stanford's Chris Piech stressed that the system is not intended to replace instructors, but to reach more students than they could on their own.

From The New York Times
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