English: What I learned from the first draft

1. Don't mention a thing that we will not talk about it later. Although it may look good for an introduction, it actually not good for reader at all. Try to find a new way for introduction is a better choice.
2. When we say "the problem" for the first time, it is better to include a good adjective representing "the problem'. For example, "to alleviate the computational complexity problem". Plus, it is generally better if we show an example of a problem in the first time we mention that problem (show the computation complexity).
   
3. There may be parts that are off-topic due to the scope of our article. Try to get rid of them as much as possible. Always remind ourselves that we have a specific goal, not a general goal, in every writing.