en تجارت الکترونیکی E-Business and E-Commerce پژوهشي Research <p>Nowadays, the popularity of social networks as marketing tools has brought a deal of attention to social networks analysis (SNA). One of the well-known Problems in this field is influence maximization problems which related to flow of information within networks. Although, the problem have been considered by many researchers, the concept behind of this problem has been used less in business context. In this paper, by using a cost-benefits analysis, we propose a multi-objective optimization model which helps to identify the key nodes location, which are a symbol of potential influential customers in real social networks. The main novelty of this model is that it determines the best nodes by combining two essential and realistic elements simultaneously: diffusion speed and dispersion cost. Also, the performance of the proposed model is validated by detecting key nodes on a real social network</p> Social network analysis, Influence Maximization, diffusion Speed, Multi-objective optimization. 85 95 http://ijiepr.iust.ac.ir/browse.php?a_code=A-10-742-1&slc_lang=en&sid=1 Aghil Hamidihesarsorkh Aghil_Hamidi@ind.iust.ac.ir 180031947532846004071 180031947532846004071 No Iran university science and technology Ali Papi Ali_papi@ind.iust.ac.ir 180031947532846004072 180031947532846004072 No Iran university science and technology Ali Bonyadi Naeini Bonyadi@iust.ac.ir 180031947532846004073 180031947532846004073 Yes Iran university science and technology Armin Jabarzadeh Armin@iust.ac.ir 180031947532846004074 180031947532846004074 No Iran university science and technology