LIU-NET: lightweight Inception U-Net for efficient brain tumor segmentation from multimodal 3D MRI images 1Department of Artificial Intelligence, University of Management & Technology, Lahore, Pakistan 2Department of Computer Science, School of Systems and Technology, University of Management & Technology, Lahore, Pakistan 3Department of Computer Science, COMSATS Institute of Information Technology, Lahore, Pakistan 4Department of Information Systems, College of Computer and Information...