Export Reviews, Discussions, Author Feedback and Meta-Reviews

First provide a summary of the paper, and then address the following criteria: Quality, clarity, originality and significance. In this paper the authors analyze theoretically two common graph clustering algorithms using low rank + sparsity, showing bounds on the parameter of these methods for them to work, and they present experimental validations of the results. The paper is very well written in general, although there are some minor typos. For instance, I think that the about in line 314 should be an above. Also, it seems more reasonable to me to put subsection 3.1.1