1. Apollo is an adaptive parameter-wise diagonal quasi-Newton method for nonconvex stochastic optimization.
2. It is designed to improve the convergence rate of nonconvex optimization problems by automatically adjusting the parameters of the algorithm.
3. The paper provides theoretical analysis and empirical results to demonstrate the effectiveness of Apollo in solving nonconvex optimization problems.
The article appears to be reliable and trustworthy, as it provides a detailed description of the Apollo algorithm, its theoretical analysis, and empirical results that demonstrate its effectiveness in solving nonconvex optimization problems. The authors have also provided a comprehensive list of references to support their claims. However, there are some potential biases that should be noted. For example, the authors may have overlooked certain counterarguments or unexplored points of consideration when presenting their findings. Additionally, they may have presented only one side of an argument without considering other perspectives or evidence that could contradict their claims. Furthermore, there may be promotional content in the article that could lead to biased conclusions or unsupported claims. Finally, it is important to note whether possible risks associated with using this algorithm are discussed in the paper; if not, this should be addressed in future research.