KaRS-ComplexRec 2021: joint proceedings KaRS 2021 and ComplexRec 2021
: joint workshop proceedings of the 3rd edition of Knowledge-aware and Conversational Recommender Systems (KaRS) and the 5th edition of Recommendation in Complex Environments (ComplexRec), co-located with 15th ACM Conference on Recommender Systems (RecSys 2021) : virtual event, Amsterdam, The Netherlands, September 25, 2021