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In this paper, we have proposed a new unified model, CLUE for the educational domain, which learns from the features extracted from freely available public online teaching videos and provides explainable feedback on the video along with a user engagement score. Given the complexity of the task, our unified framework employs different pre-trained models working together as an ensemble of classifiers. Our model exploits various multi-modal features to model the complexity of language, context agnostic information, textual emotion of the delivered content, animation, speaker’s pitch and speech emotions. Under a transfer learning setup, the overall model, in the unified space, is fine-tuned for downstream applications. Our results show that our model can detect engagement reliably with 85% accuracy. The explainability component helps give feedback to the creator where the content needs further improvement. 1. The ongoing pandemic has resulted in various teaching. Research organizations resorting to online lectures. What is predominantly seen today is that different academicians across the globe are creating teaching materials and have started to share them online with students as Open Educational Resources (OERs) (Ehlers et al., 2018) such as Massive Online Open Courses (MOOCs) to boost the online learning. A cool roof is like that white T-shirt: It reflects heat from the sun and stays cooler, thus transferring less heat into the building. In the past, the roofing materials themselves needed to be light-colored for this concept to work. But new treatments allow consumers to choose darker materials that will reflect heat back into the atmosphere, as well. Eco Home Magazine cited one estimate at $80 per square foot more. Of course, experts argue that a lower electric bill in the blazing days of August will help you recoup those costs quickly. Insulating panels made from foam can help save up to 50 percent in energy costs over other materials. Think of an Oreo cookie, and you've got the idea about a structural insulated panel (SIP). SIPs are made from a layer of foam insulation that's sandwiched between pieces of plywood, strand board or cement panels. In 2009, the material was used in less than 2 percent of new homes. elisa lam

















































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