Review Reports

Round 1

Reviewer 1 Report

This paper propose an application system which uses Histogram equalization, Gabor wavelet filter, SVM, and DeepLab-v3+ model to determine the skin type and detect acne. Based on the detection results, proper product is selected from MySQL database and recommended to the user. Payment system is also taken into consideration. The overall representation is good. System flowchart, experimental results, and writing are well done. I have no further suggestion.  

Author Response

Thank you.

Reviewer 2 Report

This work proposes a new business system for facial skincare product recommendations.  The comments of the manuscript are listed as follows:

Would you please double-check the formulas in the manuscript and make sure that all the mathematical symbols are explained in this manuscript? 

The title of this manuscript is not suitable for the content. Facial skincare products recommendation should be the focus on the recommendation algorithm. However, this manuscript is more like a realization of a skincare product vending machine. 

How many training and testing samples are used in the skin type classification experiments? The authors should give more detail of the dataset.

Table 3 lists some of the skincare products. How does the author classify these skincare products? Is it based on prior knowledge?

Figure 4 is the flowchart of the skincare products recommendation system.  The authors apply the binary-classification SVM twice to get the skin type classification results (Oily, Neutral and Dry). Why not consider some multi-classification methods instead?

In the introduction section, the authors introduce the impact of acne on the skin. However, there is no experiment on acne identification in the experimental section. The authors should give the acne detection results （also mentioned in subsection 2.2.3. ）

How to recommend a suitable skincare product is what the manuscript concerns most. However, the recommending process is only related to the skin type and has nothing to do with the severity of acne. The authors need to re-adjust the content and logical structure of the manuscript.

Author Response

Reply letter as attached file.

Author Response File: Author Response.pdf

Round 2

Reviewer 2 Report

This manuscript has been improved.