Is recomnder systems part of computer science? I want to work on a paper with one of my friends in Recommender systems. My field is programming, and I favourite part is to be more technical.
I want to know that, is field of Recommender systems a part of Computer science or field in Information technology?
The algorithmic part of the  recommendation systems is more closely related to the computer science, the theoretical part of recommendation systems is mostly combination of statistics and linear algebra, thus we can think of recommendation systems as the combination of statistics and computer science, and the data science is the field that one would actually call the combination of statistics and computer science.
Thus my take on to answer the question is that the data science is the field you are looking for.