Day: August 13, 2020

Algorithm downgrades nearly 40% of English exam results

An algorithm used to determine school-leaving grades in England has downgraded 39% of the results predicted by teachers — with disadvantaged students suffering the biggest drop.

Exam regulator Ofqual adopted the system when exams across the country were cancelled due to the COVID-19 pandemic. Instead, teachers were instructed to submit their predicted grades for each student. The algorithm then moderated their assessments by comparing them to their school‘s historic performance and each pupil’s past results.

In total, the algorithm downgraded about 280,000 A-level results, with poorer students more likely to receive lower grades.

Ofqual’s figures revealed pupils at fee-paying schools

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MLops: The rise of machine learning operations

As hard as it is for data scientists to tag data and develop accurate machine learning models, managing models in production can be even more daunting. Recognizing model drift, retraining models with updating data sets, improving performance, and maintaining the underlying technology platforms are all important data science practices. Without these disciplines, models can produce erroneous results that significantly impact business.

Developing production-ready models is no easy feat. According to one machine learning study, 55 percent of companies had not deployed models into production, and 40 percent or more require more than 30 days to deploy one model.

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