发明名称 |
Systems and methods for optimizing decision graph collaborative filtering |
摘要 |
The present invention provides collaborative filtering systems and methods employing default scores of decision graphs/trees to quickly create a top-n prediction list that can efficiently determine a user's interest in items. In one instance of the present invention, the list is refined by utilizing a variable maximum score algorithm and/or an invalidation list algorithm to insert items that score above an inclusion threshold set by a last item in the top-n prediction list. In another instance of the present invention, an invalidation list for a decision graph and/or decision tree is utilized to create a top-n prediction list. An algorithm employing default scores is then utilized to refine the top-n prediction list to insert items with default scores above an inclusion threshold set by a last item in the top-n prediction list.
|
申请公布号 |
US7444313(B2) |
申请公布日期 |
2008.10.28 |
申请号 |
US20030654131 |
申请日期 |
2003.09.03 |
申请人 |
MICROSOFT CORPORATION |
发明人 |
MEEK CHRISTOPHER A.;CHICKERING DAVID M.;WEARE CHRISTOPHER B.;GUPTA PRADEEP K. |
分类号 |
G06N5/02;G06F17/00;H04H60/33 |
主分类号 |
G06N5/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|