Rough sets.

Incomplete information system and rough set theory : models and attribute reductions by: Yang, Jingyu; Yang, Xibei (Language materials, printed)

Intelligent decision support : handbook of applications and advances of the rough sets theory by: Slowinski, Roman (Language materials, printed)

Hybrid rough sets and applications in uncertain decision-making by: Lin, Yi; Jian, Lirong; Liu, Sifeng (Language materials, printed)

Rough sets : mathematical foundations by: Polkowski, Lech (Language materials, printed)

Knowledge representation techniques : a rough set approach by: Doherty, Patrick ... [et al.] (Language materials, printed)