Hybrid Approaches -- The PSyKE technology for Trustworthy Artificial Intelligence -- A Declarative Approach to Contrast Pattern Mining -- Graphs and Networks -- Approximate Inference in Probabilistic Answer Set Programming for Statistical Probabilities -- Decision Trees with a Modal Flavor -- Assisted Process Knowledge Graph Building Using Pre-Trained Language Models -- Neural Networks Reduction via Lumping -- Knowledge Enhanced Neural Networks for relational domains -- Logic Tensor Networks for Top-N Recommendation -- Multiagent Systems -- A Review of the Muddy Children Problem -- Multi-Agent Cooperative Argumentation in Arg2P -- Ethics by Design for Intelligent and Sustainable Adaptive systems -- Automated Planning and Scheduling -- Verification of Numeric Planning Problems through Domain Dynamic Consistency -- Comparing Multi-Agent Path Finding Algorithms in a Real Industrial Scenario -- Logic-Based Ethical Planning -- A Hybrid Recommender System with Implicit Feedbacks in Fashion Retail -- Incremental Timeline-based Planning for Efficient Plan Execution and Adaptation -- Knowledge Acquisition and Completion for Long-Term Human-Robot Interactions using Knowledge Graph Embedding -- Construct, Merge, Solve and Adapt Applied to a Bus Driver Scheduling Problem with Complex Break Constraints -- Topic Modelling and Frame identification for Political Arguments -- Substitute plastic film with Kraft paper in automatic pallet wrapping: an AI pipeline -- AI Applications -- Transformer Based Motion In-Betweening -- A Logic-based Tool for Dynamic Generation and Classification of Music Content -- Why Can Neural Networks Recognize Us by Our Finger Movements? -- Miscellany -- Labelled Sequent Calculi for Conditional Logics: Conditional Excluded Middle and Conditional Modus Ponens finally together -- Deeplearning for ECoG brain-computer interface: end-to-end vs hand-crafted features -- Quantum Circuit Compilation for the Graph Coloring Problem -- Toward a Heterogeneous Multi-Robot Framework for Priority-Based Sanitization of Railway Stations -- Simulated Annealing for the Home Healthcare Routing and Scheduling Problem -- MAP Inference in Probabilistic Answer Set Programs -- Verifying a stochastic model for the spread of a SARS-CoV-2-like infection: opportunities and limitations -- Natural Language Processing -- DelBERTo: a Deep Lightweight Transformer for Sentiment Analysis -- A BERT-based Scoring System for Workplace Safety Courses in Italian -- Embedding Contextual Information in seq2seq models for Grounded Semantic Role Labeling -- Keynote talk. -Adventures with Datalog: Walking the Thin Line Between Theory and Practice.

This book constitutes the refereed proceedings of the XXIst International Conference of the Italian Association for Artificial Intelligence on AIxIA 2022 - Advances in Artificial Intelligence, which was held in Udine, Italy, during November 28-December 2, 2022. The 33 full papers and 1 invited paper presented in this volume were carefully reviewed and selected from 54 submissions. They were organized in topical sections as follows: Hybrid Approaches; Graphs and Networks; Multiagent Systems; Automated Planning and Scheduling; AI Applications; Miscellany; Natural Language Processing; and Keynote talk.