<p>For variables like &quot;item_description&quot; which are in essence text variables, check <a href="https://www.arxiv-vanity.com/papers/1806.00979/" rel="nofollow noreferrer">this paper</a> and corresponding <a href="https://pypi.org/project/dirty-cat/" rel="nofollow noreferrer">Python package</a>.</p>
<p>Or simply search online for &quot;dirty categorical variables&quot; and if in doubt, it is the article and package are from Gal Varoquaux, one of the main developers from Sklearn.</p>
How to encode a categorical feature with high cardinality?
<p>Im stuck in a dataset that contains some categrotical features with a high cardinality.
like 'item_description' ...
I read about some trick called hashing, but its main idea is still blurry and incomprehensible, i also read about a library called 'Feature engine' but i didn't really find something that might solve my issue. 
Any suggestions please? </p>