TY - CONF ID - SisLab4549 UR - https://eprints.uet.vnu.edu.vn/eprints/id/eprint/4549/ A1 - Pham, Thanh Huyen A1 - Pham, Thi Ngan A1 - Ho, Thuan A1 - Vuong, Thi Hong A1 - Nguyen, Tri Thanh A1 - Ha, Quang Thuy N2 - Covering based rough set is an important extension of Paw-lak's traditional rough set. Reduction is a typical application of rough sets, including traditional, cover-ing based and other rough set extensions. Although this task has several pro-posals, it is still an open problem to decision systems (tables) in covering based rough set. This paper focuses on the reduction problem for the condition lattice, and fitting problem for the decision lattice in the decision table based on cover lat-tice. A corresponding algorithm is proposed for each problem. Two examples to illustrate a covering based decision table and two related problems show the ap-plications of these concepts and problems TI - Solving reduction problems in cover lattice based decision tables AV - none T2 - ACIIDS 2021: Intelligent Information and Database Systems ER -