aws personalize loads the below hyper parameter by default for personalized ranking recipe. "max_user_history_length": "200" But there is no explanation for this hyper parameter in the documentation. Any guidance would be helpful.
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Maybe this parameter was introduced with a new feature for filtering recommendations? https://docs.aws.amazon.com/personalize/latest/dg/filter.html In docs you can find, that "Amazon Personalize filters recommendations based on the most recent 200 historical and 100 new interaction events recorded in a user's Interactions dataset.". The number matches, but I'm not 100% sure. – PatrykMilewski Jul 17 '20 at 08:52
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Thank you for the reply. As per the document the filter is something to be applied for getting recommendations with any recipe. But "max_user_history_length": "200" -> this shows as hyper parameter only for personalize-ranking native recipe. So does this mean recent 200 records are considered for reranking the items for user by personalize ranking recipe? – user1506729 Jul 18 '20 at 17:26