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Local Personalized Differential Privacy in Statistical Databases
, M.Sc. Thesis Sharif University of Technology ; Jalili, Rasool (Supervisor)
Abstract
Usually, developers analyze data in order to enhance the services they provide to users, but this data analysis may compromise the privacy of the users during this process. Alternatively, service providers may choose to share their data with a third party for the purpose of data analysis, but they may have a strong aversion to sharing the personal information of their users with them. In response to these concerns and considerations, some countries have enacted legislation in this area. The method of protecting privacy has been proposed in a variety of ways, however most of them lack a precise mathematical and formal definition. In the end, there is no guarantee that this will ensure that...
Solving the Cold-Start Problem in Recommender Systems Personalization
, M.Sc. Thesis Sharif University of Technology ; Rabie, Hamid Reza (Supervisor)
Abstract
User cold-start is a common problem among real-world applications in the sequential recommendation field since determining user preference based on a few interactions is difficult. The problem would end up limiting the performance recommender systems. To address the cold-start problem, some previous works used meta-learning along with user’s and item’s side information. Meta-learning algorithms made the model able to share knowledge among all tasks. Although they had promising results, they had some fundamental issues with modeling the dynamics of user preferences and considering all kinds of users’ preferences, especially for minor users. The proposed method includes a model incorporating...
Investigation on the Effect of Product Involvement in Online Targeted Advertising
, M.Sc. Thesis Sharif University of Technology ; Aslani, Shirin (Supervisor)
Abstract
Nowadays, one of the most popular methods of advertising is online advertising, which is commonly used by many businesses. In the meantime, targeting the right person at the right moment to show an advertisement is always a major concern of advertisers and other players in this field. One of the areas of study in the literature in this field is the investigation of factors affecting the effectiveness of targeted advertising. The purpose of the upcoming research is to investigate the impact of the advertised product involvement in targeted online advertising. This level of effectiveness is measured by considering click intention as a measure of effectiveness and examining the impact of...