@misc{tsai2019p5,
  title = {{Expanding Controllability of Hybrid Recommender Systems: From Positive to Negative Relevance}},
  author = {Rahdari, B. and Tsai, C. H. and Brusilovsky, P.},
  year = {2019},
  howpublished = {FLAIRS},
  url = {https://chunhuatsai.github.io/publications/#p5}
}