Data quality and trust in big data 5th International Workshop, QUAT 2018 : held in conjunction with WISE 2018, Dubai, UAE, November 12–15, 2018 : revised selected papers - Hacid, Hakim; Sheng, Quan Z.; Yoshida, Tetsuya; Sarkheyli, Azadeh; Zhou, Rui (Lecture notes in computer science, 2019)