Table Tennis Stroke Recognition Based on Body Sensor Network -- The analysis of the computation o oading scheme with two-parameter o oading criterion in fog computing -- Protecting Personal Data using Smart Contracts -- Towards environmental impact reduction leveraging IoT infrastructures: the PIXEL approach -- Adaptive Application Deployment of Priority Services in Virtual Environments -- An Adaptive Restart Mechanism For Continuous Epidemic Systems -- Using Sentiment Analysis and Automated Reasoning to Boost Smart Lighting Systems -- In-Network Hebbian Plasticity for Wireless Sensor Networks -- A high performance modi ed K-means algorithm for dynamic data clustering in multi-core CPUs based environments -- Overcoming GPU Memory Capacity Limitations in Hybrid MPI Implementations of CFD -- Using Trust and "Utility" for Group Formation in the Cloud of Things -- Unsupervised anomaly thresholding from reconstruction errors -- Yet another Way to Unknowingly Gather People Coordinates and its Countermeasures -- Computation o oading with MQTT protocol on a Fog-Mist Computing Framework -- Load balancing in Hybrid Clouds through Process Mining Monitoring -- MR-DNS: Multi-Resolution Domain Name System -- Temporal-variation-aware Pro t-maximized and Delay-bounded Task Scheduling in Green Data Center -- A LévyWalk and Firefly Based Multi-Robots Foraging Algorithm -- An Overview of Wireless Indoor Positioning Systems: Techniques, Security, and Countermeasures -- NIOECM: A Network I/O Event Control Mechanism To Provide Fairness of Network Performance among VMs with Same Resource Configuration in Virtualized Environment -- Learning and prediction of e-car charging requirements for exible loads shifting -- Design of self-organizing protocol for LoWPAN networks -- Rough--Fuzzy Entropy in neighbourhood characterization -- StormSeeker: a machine learning based Mediterranean storm tracer. Smart Cities and Open WiFis: when Android OS Permissions Cease to Protect Privacy -- Multidimensional Neuroimaging Processing in ReCaS Datacenter -- A data preparation approach for cloud storage based on containerized parallel patterns -- Distributed Training of 3DPyranet over Intel DevCloud Platform -- Parallel and Distributed Computing Methodologies in Bioinformatics.

This book constitutes the proceedings of the 12th International Conference on Internet and Distributed Systems held in Naples, Italy, in October 2019. The 47 revised full papers presented were carefully reviewed and selected from 145 submissions. This conference desires to look for inspiration in diverse areas (e.g. infrastructure & system design, software development, big data, control theory, artificial intelligence, IoT, self-adaptation, emerging models, paradigms, applications and technologies related to Internet-based distributed systems) to develop new ways to design and manage such complex and adaptive computation resources.