recollection vs remembering

recollection and remembering both are nouns.

Word	Noun	Adjective	Verb	Adverb
recollection	Yes	No	No	No
remembering	Yes	No	No	No

As nouns, remembering is a hypernym of recollection; that is, remembering is a word with a broader meaning than recollection:

recollection: the process of remembering (especially the process of recovering information by mental effort)
remembering: the cognitive processes whereby past experience is remembered

Other hypernyms of recollection include memory.

recollection (noun)	remembering (noun)
the ability to recall past occurrences	the cognitive processes whereby past experience is remembered
the process of remembering (especially the process of recovering information by mental effort)
something recalled to the mind