In the Instagram ecosystem, users often form implicit communities based on shared interests, hashtags, or following the same influencers, even though they may not explicitly acknowledge being part of these communities.

Q$1$: Implement a machine learning method to identify Instagram user groups within a large user base, based on features and conditions that distinguish users from one another.

Q$2$: Identify three $(3)$ challenges in the proposed machine learning method and discuss solutions to overcome these challenges