The main task of knowledge tracking is to predict the change of students' mastery of knowledge points over time according to their historical learning records, so as to provide students with personalized tutorship. Previous deep learning models often did not take into account the influence of different students' abilities on their learning absorption and forgetting, in this paper, we propose a model called F-SPKT, which integrates forgetting behavior into the student's performance knowledge tracking. The Rasch model was used to extract the information of students' learning ability and difficulty, and then the full-connection network was used to calculate the students' forgetting degree vector. Then, the multi-attention mechanism was used to predict the probability of answers. Compared with the traditional methods, F-SPKT has better prediction ability in experimental verification.
Nowadays, with the rapid development of Internet technology and the emergence of converged media, the rapid transmission of news and information and the ways of transmission are increasingly diversified, and the transmission of video information is gradually developing forward and entering the mainstream of society. Video communication has become an integral part of the new era. This paper proposes a conference mode, which is convenient for the video conference terminal to connect to the video conference software, and also convenient for later operation and maintenance. Our video conference terminal uses Polycom's hardware equipment, our software client uses Huawei cloud conference, and our management platform is managed by the intelligent edge platform of the Internet of Things. The conference system, which supports HD real-time video transmission, has lower delay when resharing the screen than the conference system developed by Tencent Conference. This system maintains stable transmission even in the case of serious renetwork packet loss.
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