📌 Religious question and answer systems face a large number of users who have different age ranges and different characteristics. In these systems, each person spends part of their time studying the questions and answers of others, and this shows the need to recommend questions and answers related to the person. In fact, some of the questions are about women and some are about men. Also, age groups have different interests, and therefore it is necessary to intelligently select the content that is visible to each user. Such services are more common in online stores. Where the user, after using the services of that site several times, sees the content that suits his interest on their first page.
