Rough-MABAC — Rough extension of MABAC

ROUGH-MABAC (Jia et al. 2019) uses Intuitionistic Fuzzy Rough Numbers (IFRN=[(μ_l,ν_l),(μ_u,ν_u)]), NOT plain rough intervals. Pipeline: (1) for cost criteria swap μ↔ν (normalization); (2) IFWA scalar power w_j⊗β_ij=(1-(1-μ)^{w_j}, ν^{w_j}) applied to each IFN component; (3) IFRG geometric mean gives IFRBAA [g_j] per criterion; (4) signed Euclidean distance d_ij from IFRBAA: positive if [γ_ij]>[g_j] (via Definition 5 Sum-based comparison), negative if below; (5) Q_i=Σ_j d_ij, rank descending. No midpoint defuzzification — ranking is purely score-based via Euclidean distances.