Universities usually have strict honor code policies about students cheating on exams, homework and other assignments.
“You can come here and ask, we can’t stop you from that,” said Deb. But Chegg doesn’t generally take action against the person making the request. If they do, they can be kicked out of the system. The company’s tutors are instructed by the company not to engage if they encounter such solicitations. When the model detects a student asking to cheat, it alerts someone who will make a final determination whether there was, indeed, a cheating request. Snorkel looks at both context and sentence structure and applies those "rules" to generate labeled training data for building a machine learning model. The data scientists then use that knowledge to create linguistic "rules" that have hallmarks of cheating requests in different subject areas. So, to solve that, the company relies on Stanford-built Snorkel, a system for creating, modeling and managing training data.ĭeb said their data scientists ask subject matter experts what cheating looks like in their area of expertise. Deb said that while Chegg has a lot of content, it's not well structured for training machine learning algorithms.
So to flag such ethically dubious requests, the company uses machine learning. The company, however, does not want students to use its site to get tutors to do their work for them. To get a match, though, a student must send a message describing what they need help with to either an individual tutor, or to a general form. Speaking to an audience of researchers from the education industry last week at the Bay Area Learning Analytics Conference, held at the University of California at Berkeley, Deb shared how Chegg uses a Stanford-built tool to try to keep out students who just want an online tutor to do their homework.Īmong the services that the publicly-traded digital education company offers is Chegg Tutors, which matches students with tutors who help them one-on-one in a variety of subjects, such as physics and French. And it’s what the Santa Clara, Calif.-based company wants to thwart. Yet this is the kind of “help” that Chegg’s tutoring service can sometimes be used for. And you don’t need to be an expert in academic honor codes to know that it constitutes as cheating. That’s an example of a request that can be found on online tutoring services like Chegg, as shared by a senior data scientist at the company, Sanghamitra Deb. “I need a 10 page essay written on the deforestation of the Amazon rainforest.
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