Specifically, I would like to classify the causes of infant crying. If anyone can suggest the database which also has corresponding cause of crying annotated, it would be appreciated.
I know that exists a study on data visualization (we have data there) on African children about crying, breastfeeding, if the child is on the floor or in mum's arms. I don't remember where I saw this research. I will try to remember.
Last time my team and I were also involved with the study. We attained infant cry database from Carlos A. Reyes. He has published too many research works on infant cry studies. Maybe you can contact him for further information