This book constitutes the refereed post-conference proceedings of the International Conference on Context-Aware Systems and Applications, held in October 2021. Due to COVID-19 pandemic the conference was held virtually.
The 25 revised full papers presented were carefully selected from 52 submissions.

Adapt and Flex or Die: A Systems Approach to an Unhealthy Healthcare Supply Chain.- Knowledge Management Practices: Innovation the path to Organizational Performance.- Predicting Humans’ Balance Disorder Based on Center of Gravity Using Support Vector Machine.- Internet of Things Big Data Management and Analytic: A survey and future researches.- Ensemble Learning for Mining Opinions on Food Reviews.- Hidden Pattern: Toward Decision Support Fuzzy Systems.- Applying Segmented Images by Louvain Method into Content-Based Image Retrieval.- An effective approach for mining k-item High Utility Itemsets from incremental databases.- Recover Realistic Faces from Sketches.- Region Of Interest Selection on Plant Disease.- Memory-Constrained Context-Aware Reasoning.- Segmentation-based methods for top-k discords detection in static and streaming time series under Euclidean distance.- Hardware/Software Co-design for Convolutional Neural Networks Acceleration: a Survey and Open Issues.- Image Segmentation and Transfer Learning Approach for Skin Classification.- Blockchain and Identity Management.- Binary Classification for Lung Nodule based on Channel Attention.