@article{AgostiMarchesin20202020,
  author    = {Maristella Agosti, Stefano Marchesin and Gianmaria Silvello (2020)},
  title     = {Learning Unsupervised Knowledge-Enhanced Representations to Reduce the Semantic Gap in Information Retrieval},
  journal   = {ACM Transactions on Information Systems (TOIS), September 2020, Article No.: 38.},
  year      = {2020}
}