This open access book constitutes the refereed proceedings of the 18th International Conference on String Processing and Information Retrieval, ICOST 2020, held in Hammamet, Tunisia, in June 2020.*The 17 full papers and 23 short papers presented in this volume were carefully reviewed and selected from 49 submissions.

IoT and AI Solutions for E-health.- Alzheimer's Disease Early Detection Using a Low Cost Three-dimensional Densenet-121 Architecture.- Self-adaptative Early Warning Scoring System for Smart Hospital.- Machine Learning Based Rank Attack Detection for Smart Hospital Infrastructure.- Remote Health Monitoring Systems Based on Bluetooth Low Energy (BLE) Communication Systems.- Modeling and Specification of Bootstrapping and Registration Design Patterns for IoT Applications.- Biomedical and Health Informatics.- EEG-based Hypo-vigilance Detection Using Convolutional Neural Network.- Respiratory Activity Classification Based on Ballistocardiogram Analysis.- A Convolutional Neural Network for Lentigo Diagnosis.- Deep Learning-based Approach for Atrial Fibrillation Detection.- Unsupervised Method Based on Superpixel Segmentation for Corpus Callosum Parcellation in MRI Scans.- Behavior and Activity Monitoring.- Using Learning Techniques to Observe Elderly's Behavior Changes Over Time.- Personalized and Contextualized Persuasion System for Older Adults’ Physical Activity Promoting.- Baseline Modelling and Composite Representation of Unobtrusively (IoT) Sensed Behaviour Changes Related to Urban Physical Well-being.- Wellbeing Technology.- Automatic Daily Activity Schedule Planning for Simulating Smart House with Elderly People Living Alone.- A Novel On-wrist Fall Detection System Using Supervised Dictionary Learning Technique.- Combined Machine Learning and Semantic Modelling for Situation Awareness and Healthcare Decision Support.- Improving Access and Mental Health for Youth Through Virtual Models of Care.- Short Contributions: IoT and AI Solutions for E-health.- Study of Middleware for Internet of Healthcare Things and Their Applications.- Uncertainty in IoT for Smart Healthcare: Challenges, and Opportunities.- Secure E-health Platform.- Hybrid and Secure E-health Data Sharing Architecture in Multi-Clouds Environment.- Blockchain for Internet of Medical Things: A technical Review.- Application of Blockchain Technology in Healthcare: A Comprehensive Study.- Trust Execution Environment and Multi-party Computation for Blockchain E-health Systems.- A Fuzzy-ontology Based Diabetes Monitoring System Using Internet of Things.- Short Contributions: Biomedical and Health Informatics.- A Hybrid Approach for Heart Disease Diagnosis and Prediction Using Machine Learning Techniques.- Context-aware Healthcare Adaptation Model for COPD Diseases.- Study of Healthcare Professionals’ Interaction in the Patient Records with Annotations.- Multirate ECG Processing and Machine Learning Based Efficient Arrhythmia Diagnosis.- Comparative Study of Relevant Methods for MRI/X Brain Image Registration.- Machine Learning Classification Models with SPD/ED Dataset: Comparative Study of Abstract Versus Full Article Approach.- Evaluation of Stationary Wavelet Transforms in Reconstruction of Pure High Frequency Oscillations (HFOs).- Ensuring theCorrectness and Well Modeling of Intelligent Healthcare Management Systems.- Short Contributions: Wellbeing Technology.- An Embedded ANN Raspberry PI for Inertial Sensor Based Human Activity Recognition.- Human Activities Recognition in Android Smartphone using WSVM-HMM Classifier.- Mobile Assistive Application for Blind People in Indoor Navigation.- Older People’s Needs and Opportunities for Assistive Technologies.- Towards a Formal Context-Aware Workflow Model for Ambient Environment.- The PULSE Project: A Case of Use of Big Data Uses Toward a Cohomprensive Health Vision of City Well Being.- ForeSight - An AI-driven Smart Living Platform, Approach to Add Access Control to openHAB.

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