The following paper has been chosen as the recipient of the 2015 James Chen Annual Award for Best Journal Article.
Dietmar Jannach, Lukas Lerche, Iman Kamehkhosh, Michael Jugovac
What recommenders recommend: an analysis of recommendation biases and possible countermeasures
UMUAI Vol. 25, issue 5, pp. 427–491
It was selected based on nominations from journal reviewers and editorial board members, and a subsequent comparative review by an award committee.