2.1. Benefit one: accurate description of data

It is obvious that single-view data may contain incomplete knowledge, while multi-view data usually contains complementary and redundant information, which results in a more accurate description of the data. For example, it may fail to identify the intrinsic community structures of a social network via just leveraging the friendships. However, if more information such as users' demographics can be obtained, it is more inclined to find out the implicit relationships between users.
