Scientists have created an artificial intelligence (AI) system that can accurately identify whether a student wrote their assignment on their own or got it penned by a ghostwriter. Several studies have shown that cheating on assignments is widespread and becoming increasingly prevalent among high school students.Researchers at the University of Copenhagen in Denmark have been working on ways to detect cheating on assignments through writing analysis by way of artificial intelligence have been underway for a few years. Based on analyses of 130,000 written Danish assignments, scientists can, with nearly 90 per cent accuracy, detect whether a student has written an assignment on their own or had it composed by a ghostwriter.
The problem today is that if someone is hired to write an assignment, anti-plagiarism tools won’t spot it, said Stephan Lorenzen, a PhD student at University of Copenhagen. “Our programme identifies discrepancies in writing styles by comparing recently submitted writing against a student’s previously submitted work,” Lorenzen said.“Among other variables, the programme looks at word length, sentence structure and how words are used,” said Lorenzen. The programme, Ghostwriter, is built around machine learning and neural networks — branches of artificial intelligence that are particularly useful for recognising patterns in images and texts.
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