A Novel Weighted Fuzzy Harmonic Mean Aggregation Operator on Fuzzy Graphs for Multi-Criteria Decision Making and Its Application in AI-Based Recommendation Systems. JAMS [Internet]. 2026 Sep. 6 [cited 2026 Sep. 21];1(2):Page 574-583. Available from: https://jamsjournal.org/JAMS/article/view/a-novel-weighted-fuzzy-harmonic-mean-aggregation-operator-on-fuz