Aiming at the problem of poor data availability caused by excessive adding noise during trajectory privacy protection by differential privacy, combined with the teaching experience in big data privacy protection in recent years, a trajectory privacy protection method based on semantic privacy level was proposed. The case design and teaching method of trajectory privacy protection are discussed in order to provide reference for the applied teaching reform of differential privacy.

In consumer decision-making process and factors that influence them was elaborated for a possibility to influence consumer behavior in favors of company’s offers. Furthermore, recommendations for marketers were suggested for deeper understanding the consumer behavior and their buying strategies to empower marketing campaigns and be a success in the market. The paper also suggests several directions for future research related to buying behavior. Consumer Decision Making refers to the process under which consumers go through in deciding what to purchase, including problem recognition, information searching, evaluation of alternatives, making the decision and post-purchase evaluation