Hi Sourangshu Ghosh ,

This question may be difficult to answer without being an expert in machine learning, but you can also answer it yourself.

One effective way to ascertain the current areas of research in Statistical machine learning is conduct a scientometric review or science mapping study using powerful literature databases such as Scopus, Web of Science, Engineering Village or any other relevant literature database.

The link below provides an excellent description of how to conduct scientometric reviews to identify current areas of research and may prove useful

URL: Article Scientometric review of global research trends on green buil...

Hope it helps!

Thanks Ibrahim Yahaya Wuni the answer was really very beneficial for me.

Also thanks to Suraj Kumar Mallick and Muhammad Umar Farooq for recommending other fields of interest.

I would recommend reading the following article:

- Tanzeel Rehman, Md Sultan Mahmud, Young Ki Chang, Jaemyung Shin and Jian Jin (2018) Current and future applications of statistical machine learning algorithms for agricultural machine vision systems, Computers and Electronics in Agriculture 156(1):585-605. ‎ DOI: 10.1016/j.compag.2018.12.006‎