Stepán Balcar et al.: Hierarchical Portfolios in Recommender Ecosystems: Multi-level aggregations of heterogeneous ensembles integrating long-term and short-term motivations. (2022)conf/iccai/BalcarPV2210.1145/3532213.3532255Hierarchical Portfolios in Recommender Ecosystems: Multi-level aggregations of heterogeneous ensembles integrating long-term and short-term motivations.3Stepán Balcar1Ladislav Peska2Peter Vojtás3280-285ICCAIICCAI20222022provenance information for RDF data of dblp record 'conf/iccai/BalcarPV22'2022-07-15T09:57:33+0200