What determines the accuracy and quality of the ranking?

It depends on the job ad content (how detailed it is), position specificity, and candidate resumes. If candidates have described their experience in detail and it matches your job ad requirements, the algorithm can perform ranking more accurately. If resumes lack sufficient data, it’s less likely they will be relevant or appear at the top. However, even in such cases, the system has general knowledge about job duties for specific roles and can recognize relevant experience.