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Recommendation system and recommendation method

A recommendation method and recommendation system technology, which is applied in the field of information retrieval and can solve problems such as incomplete recommended search output results

Inactive Publication Date: 2010-03-03
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The recommended search method in the prior art only uses part of the data in the historical database for recommended search during calculation. Although it can reduce the computational complexity, because the data used for recommended search is only a part of the original data, its recommended The output of the search inevitably has the disadvantage of being incomplete

Method used

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  • Recommendation system and recommendation method
  • Recommendation system and recommendation method

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Experimental program
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Embodiment Construction

[0062] In the recommending system and recommending method of the embodiment of the present invention, first based on selecting a part of historical data from the source historical data as sample historical data, and when a new search starts, recommend based on the sample historical data, and output a first recommendation result, however According to the relationship between the sample historical data and the source historical data, the first recommendation result is enriched.

[0063] The recommendation system of the embodiment of the present invention is as figure 1 shown, including:

[0064] The first saving module is used to save a source historical data set composed of source historical data;

[0065] A data selection module, configured to select part of source historical data from the source historical data set as sample historical data;

[0066] The second saving module is used to save the sample historical data set composed of the sample historical data;

[0067] A l...

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Abstract

The invention discloses a recommendation system and a recommendation method. The recommendation method comprises the following steps: preserving a sample history data set which comprises partial source history data selected from a source history data set; establishing links between the sample history data in the sample history data set and the source history data in the source history data set, wherein the link between each sample history datum and each source history datum has a respective first weight; based on the query information currently input by users, selecting at least one sample history datum from the sample history data set to form a first recommendation result, wherein each sample history datum in the first recommendation result has a respective second weight for the query information currently input by users; and selecting at least one source history datum from the source history data set according to the first weight and the second weight to form a second recommendationresult. The invention is used for recommendation based on all history information under the condition that the computation cost is not increased obviously, and the recommendation results are complete.

Description

technical field [0001] The invention relates to the technical field of information retrieval, in particular to a recommendation system and a recommendation method. Background technique [0002] The information used in the recommended search is generally the user's historical information, and as time goes by, the historical data will become larger and larger. [0003] The recommended search method in the prior art only uses part of the data in the historical database for recommended search during calculation. Although it can reduce the computational complexity, because the data used for recommended search is only a part of the original data, its recommended The output of the search inevitably has the disadvantage of being incomplete. Contents of the invention [0004] The purpose of the present invention is to provide a recommendation system and a recommendation method, which can make recommendations based on all historical information, and the calculation cost is not high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 鲁耀杰李刚尹悦燕史达飞李燕
Owner RICOH KK
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