@ARTICLE{, TITLE={Introduction}, AUTHOR={Patrick Brézillon, Roy M. Turner, }, JOURNAL={Modeling and Using Context}, VOLUME={4}, NUMBER={CONTEXT-21 Special Issue}, YEAR={2021}, URL={https://openscience.fr/Introduction-1927}, DOI={}, ISSN={2514-5711}, ABSTRACT={The CONTEXT conference series has brought together researchers and practitioners from a wide range of disciplines and industries to present their work related to issues of context, contextual reasoning, and context-awareness to discuss commonalities and diversities in the different disciplinary approaches. It is unique in focusing on context as a subject of study in its own right, and it has become one of the top venues for context-related research.}}