Sea transportation services as location tracking, trajectory optimisation and cargo monitoring improve with the sensing, communication and Cloud technologies brought by the Internet-of-Things (IoT) era. Maritime IoT (MIoT) and Internet-of-Ships enable more challenging applications, such as ship intelligent remote maintenance and management, safety-and-rescue tasks, shore-and-sea environmental monitoring, automatic docking and berthing, illegal fishing activity detection, etc. Unmanned aerial / surface vehicles (UAV / USV) assist on-demand maritime heterogeneous networks involving different communication technologies and topologies, as required by the complex, challenging sea environment. For non-critical maritime applications, low-throughput, long-range technologies (NB-IoT, LoRa/LoRaWAN) are exploited, whereas 5G/6G technologies are suitable for high-throughput, low-latency use cases, with edge computing moving data processing closer to the network. Artificial Intelligence (AI) algorithms do not only redefine wireless communications but also shape the novel concept of AI-of-Things (AIoT) adopting AI techniques on all layers of the IoT architecture; however, in the literature, no work related to maritime applications built upon AIoT paradigm was identified so far. Thus, in MIoT, significant advances to embed intelligence into the devices, applications, communication technologies and architectures are necessary. The novelty of the proposal consists in the application of AI techniques not only to the network layer of the MIoT architecture, as currently proposed, but on all layers. Such initiatives trigger new maritime processes and services and ensue emergent Maritime AIoT (MAIoT) architectures. There is a lot of room to improve knowledge, the testbeds and the experimental results on MIoT domain, especially from the point of view of the devices, applications, communication technologies and AI algorithms used. Therefore, the special session is aimed at inviting contributions on the useful symbiosis between Artificial Intelligence (AI), IoT and LPWAN/5G/6G technologies in the MAIoT architectures and applications
