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In most cases, robo-graders only replace one of two necessary graders in standardized tests.If the automatic grader has strongly divergent opinions, the essays are flagged and forwarded to another human grader for further assessment.
This routine is there to guarantee quality is assessment and is at the same time helpful in developing auto-grader skills.
Development in automatic grading is also of great interest for MOOC-providers.
He supervised the Hewlett competition back in 2012 and was very impressed by the performance of the participants.
154 different teams took part in the competition and were compared on more than 16.000 essays.
Since the competition, research in automatic grading has had good progress.
In 2016 two researchers at Stanford presented a report where they claim to have achieved a coincident of 94.5% based on the same dataset as in the Hewlett competition.Using computers to grade essays wasn’t very realistic. Today however, the need for automated computer grading is soaring.Due to high costs from every essay having to be graded by two teachers, standardized state tests with a written part of the examination have become increasingly expensive.Researchers apparently are well on their way towards getting bots to instantly grade written essays.For stakeholders dealing with humongous amounts of essays such as MOOC providers or states that include essays as part in their standardized tests, the thought of having the grading work done, even partly, by a computer is mesmerizing to say the least.As of today, 11 major Universities are contributing to the ongoing advancement of the grading software.Professor Mark Shermis, Dean of College Education at the University of Houston is considered one of the world’s leading experts in automatic grading.To start off the machine learning in the software, teachers have to input graded essays into the system to give a few examples of what is good and what is bad.The software gets increasingly better at its job as more and more essays are being entered and can eventually provide specific feedback almost instantly.Solving this problem is a big step towards disrupting the education systems that some say is broken.Grading software has dramatically improved over the last few years, and is now advancing and being tested at a college level.