Real Time Multipurpose Smart Waste Classification Model for Efficient Recycling in Smart Cities Using Multilayer Convolutional Neural Network and Perceptron. - Ali Usman Gondal; Muhammad Imran Sadiq; Tariq Ali; Muhammad Irfan 008; Ahmad Shaf; Muhammad Aamir 007; Muhammad Shoaib; Adam Glowacz; Ryszard Tadeusiewicz; Eliasz Kantoch (Sensors, 2021)