Ranking results using multiple nested ranking
First Claim
1. A ranking system that provides improved rankings for items returned for a given query comprising:
- an initial set of items for which an ordering thereof is desired; and
a multiple nested ranking component (120) that re-ranks one or more decreasing subsets of high ranked items to facilitate obtaining the most relevant ordering of the items.
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Abstract
A unique system and method that facilitates improving the ranking of items is provided. The system and method involve re-ranking decreasing subsets of high ranked items in separate stages. In particular, a basic ranking component can rank a set of items. A subset of the top or high ranking items can be taken and used as a new training set to train a component for improving the ranking among these high ranked documents. This process can be repeated on an arbitrary number of successive high ranked subsets. Thus, high ranked items can be reordered in separate stages by focusing on the higher ranked items to facilitate placing the most relevant items at the top of a search results list.
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Citations
20 Claims
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1. A ranking system that provides improved rankings for items returned for a given query comprising:
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an initial set of items for which an ordering thereof is desired; and
a multiple nested ranking component (120) that re-ranks one or more decreasing subsets of high ranked items to facilitate obtaining the most relevant ordering of the items. - View Dependent Claims (2, 3, 4, 5, 7, 8)
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6. The system of claim 6, the plurality of ranking algorithms are trained in a successive manner using a corresponding training set.
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9. A method that provides improved rankings for items returned for a given query comprising:
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retrieving an initial ordered set of items; and
re-ranking one or more decreasing subsets of ranked items to facilitate obtaining the most relevant ordering of the items. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. A ranking system that provides improved rankings for items returned for a given query comprising:
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a means for retrieving an initial ordered set of items for the given query; and
a means for re-ranking one or more decreasing subsets of high ranked items to facilitate obtaining the most relevant ordering of the items. - View Dependent Claims (19, 20)
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Specification