classifier vs machine learning

classifier and machine learning both are nouns.

Word	Noun	Adjective	Verb	Adverb
classifier	Yes	No	No	No
machine learning	Yes	No	No	No

classifier (noun)	machine learning (noun)
an algorithm that implements classification.	a subfield of computer science that explores the study and construction of algorithms that can learn from and make predictions on data.
a word or morpheme used in some languages in certain contexts (such as counting) to indicate the semantic class to which the counted item belongs
a person who creates classifications