Introduction

[uschiLaa]

• There should be a first part in the introduction that makes it clear what the paper is about, and why that is interesting, before talking in detail about optimisation.
• Introduction of optimisation methods should focus more on what is important to your work. I think you want to describe them conceptually, focussing on the common aspects that the visual diagnostics will explore.

[huizezhang-sherry]

For the first point, do you mean by having an abstract?

[huizezhang-sherry]

added