I am writing my masters thesis at a company. The thesis is about customer segmentation. One research contribution of the thesis was to propose a way to validate the found clusters in an unsupervised setting.
That being said, to find clusters, I followed a very standard process. From raw data, I made a feature table, did some data pre-processing, dimension reduction and then clustering. I did not have to do any literature review for that.
Also for the cluster validation, me and my supervisor kind of came up with the method.
Now that I am writing my thesis, I don't have anything to write in this 'Related Work' chapter. Or it seems to me like that way. There has been some customer segmentation related work done at the company before, but there is not any scientific work. Can I mention those works?