Patent ID: 9514199
Filing Date: 2016-12-06
CPC Classification: G06F

Claim Text:
1. A machine-implemented method comprising: receiving a request for a set of content items within a session; identifying, in response to the request, one or more content items; determining, based on a continuation token associated with the session comprising state information regarding each of the one or more content items and a time stamp associated with the session, whether the one or more content items have been previously provided for display; selecting, for a first bucket, content items of the one or more content items previously provided for display and satisfying a quality score threshold; selecting, for a second bucket, content items of the one or more content items previously provided for display and not selected for the first bucket; selecting, for a third bucket, content items of the one or more content items not previously provided for display; providing content items from the first bucket for display; providing content items from the third bucket for display; and providing content items from the second bucket for display, wherein content items from the third bucket are provided after content items from the first bucket and prior to content items from the second bucket.