Site selection strategy for restaurant chain expansion in urban districts based on maximization of customer attraction and profitability: ACKNOWLEDGEMENTS: This work was Supported by National Key Laboratory of Science and Technology on Helicopter Transmission(Nanjing University of Aeronautics and Astronautics)(Grant No. HTL-O-20K01) and Changzhou Science and Technology Planning Project(CE20225067). ISTAER [Internet]. 2025 Jan. 16 [cited 2025 Apr. 20];:57-70. Available from: https://istaer.online/index.php/Home/article/view/No.2320