• List of Articles Affinity

      • Open Access Article

        1 - A new Sparse Coding Approach for Human Face and Action Recognition
        Mohsen Nikpoor Mohammad Reza Karami-Mollaei Reza Ghaderi
        Sparse coding is an unsupervised method which learns a set of over-complete bases to represent data such as image, video and etc. In the cases where we have some similar images from the different classes, using the sparse coding method the images may be classified into More
        Sparse coding is an unsupervised method which learns a set of over-complete bases to represent data such as image, video and etc. In the cases where we have some similar images from the different classes, using the sparse coding method the images may be classified into the same class and devalue classification performance. In this paper, we propose an Affine Graph Regularized Sparse Coding approach for resolving this problem. We apply the sparse coding and graph regularized sparse coding approaches by adding the affinity constraint to the objective function to improve the recognition rate. Several experiments has been done on well-known face datasets such as ORL and YALE. The first experiment has been done on ORL dataset for face recognition and the second one has been done on YALE dataset for face expression detection. Both experiments have been compared with the basic approaches for evaluating the proposed method. The simulation results show that the proposed method can significantly outperform previous methods in face classification. In addition, the proposed method is applied to KTH action dataset and the results show that the proposed sparse coding approach could be applied for action recognition applications too. Manuscript profile
      • Open Access Article

        2 - Investigating the effect of salespeople’s personal interaction on customers word- of - mouth with mediating role affective customer experience and moderating role of customer ethnocentrism and foreign product affinity (Case study of: customers of Janbo chain stores in Tabriz)
        Ramin Bashirkhodaparasti Nasrin Nemati
        The purpose of this study was to investigate the effect of personal interaction of sellers on the tendency of customers to word-of-mouth marketing by considering the mediation of effective customer experience and moderation of customer ethnicity and the desire for forei More
        The purpose of this study was to investigate the effect of personal interaction of sellers on the tendency of customers to word-of-mouth marketing by considering the mediation of effective customer experience and moderation of customer ethnicity and the desire for foreign product among customers of Janbo chain stores in Tabriz. The statistical population is the customers of Janbo chain stores in Tabriz. To determine the sample size, considering that the target population is unlimited, the Cochran sample size determination formula was used and the sample size was 382 people. Sampling method is available in the present study. Data were collected through a questionnaire and to calculate the reliability of the questionnaire we used Cronbach's alpha coefficient, the value of which was calculated for the whole questionnaire 0.874. Also, SPSS software version 25 was used for data analysis and Smart PLS software was used for inferential statistics and hypothesis testing. The results of the study indicate a positive and significant effect of personal interaction of sellers on the desire to market word of mouth to customers and in this regard the effective customer experience has a mediating role and also the moderating effect of customer's ethnicity and desire for foreign product on effective customer experience. Took. Therefore, the main question of this research is whether the personal interaction of sellers affects the desire for word-of-mouth marketing through the mediation of effective customer experience and moderation of customer ethnicity and desire for foreign products among customers of Janbo chain stores in Tabriz? Manuscript profile