This book constitutes the extended and revised versions of a set of selected papers from the 13th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management, IC3K 2021, on October 25–27, 2021.

Pathology Data Prioritisation: A Study of Using Multi-variate Time Series without a Ground Truth.- From Event Tracking to Event Modelling: Understanding as a Paradigm Shift.- Exploring Semantic Similarity between German Legal Texts and Referred Laws.- Multidimensional Fairness in Paper Recommendation.- The Foundational Ontology ThingFO: Architectural Aspects, Concepts, and Applicability.- Evidence in Policymaking: A Systematic Approach.- BERT-based Ensemble Learning Approach for Sentiment Analysis.- An Ontology-driven Approach to the Analytical Platform Development for Data-intensive Domains.- How to Design a Business-Oriented Digitalized Innovation Environment: A Multi-Perspective Approach.

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