Method, device and system for weight estimation

A weight and word segmentation technology, applied in the network field, can solve problems such as inapplicable e-commerce search

Active Publication Date: 2014-12-31
ALIBABA GRP HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] There is no link relationship between products, so anchor text analysis in traditional web search is not suitable for e-commerce search

Method used

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  • Method, device and system for weight estimation
  • Method, device and system for weight estimation
  • Method, device and system for weight estimation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0126] This embodiment provides a weight estimation method, including:

[0127] The user behavior log is obtained, and the behavior information of the user corresponding to the document (object) under each query information is obtained based on the user behavior log. For example, when the document is a data object such as product information, the user's behavior information includes the display information, click information and transaction information of the product under each query information;

[0128] Segment the query information according to the preset rules to obtain the word segmentation unit, and determine the display information, click information and transaction information of each word segmentation unit according to the number of times the word segmentation unit appears in the object’s display information, click information and transaction information. transaction information;

[0129] Determine the click rate and click conversion rate of the word segmentation uni...

Embodiment 2

[0165] This embodiment provides a weight estimation method, including:

[0166] Get the current query information;

[0167] Segmenting the current query information according to preset rules to obtain one or more word segmentation units of the current query information;

[0168] According to the weight of each object corresponding to one or more word segmentation units of the current query information, determine the weight of each object; wherein, the weight of each object corresponding to one or more word segmentation units of the current query information is based on the first embodiment Obtained by the method described in.

[0169] In an alternative solution of this embodiment, each word segmentation unit further includes an attribute, and each attribute corresponds to an attribute weight;

[0170] According to the weight of each object corresponding to one or more word segmentation units of the current query information, determining the weight of each object includes:

...

Embodiment 3

[0220] This embodiment provides a weight estimation device, such as Figure 5 As shown, the weight estimation device 50 includes a first information acquisition unit 501, a second information acquisition unit 502, a word segmentation unit information processing unit 503 and a first weight estimation unit 504, wherein:

[0221] The first information obtaining unit 501 is configured to obtain a user behavior log, and obtain object presentation information, click information and transaction information based on the user behavior log;

[0222] The second information acquisition unit 502 is configured to perform word segmentation on the query information according to preset rules to obtain word segmentation units. Obtain the display information, click information and transaction information of each word segmentation unit;

[0223] The word segmentation unit information processing unit 503 is used to determine the click rate and click conversion rate of the word segmentation unit a...

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Abstract

The invention provides a method for weight estimation. The method comprises the following steps of obtaining a user behavior log and obtaining revealing information, click information and transaction information of an object based on the user behavior log; carrying out word segmentation on query information according to a preset rule to obtain word segmentation units, and respectively obtaining the revealing information, the click information and the transaction information of each word segmentation unit according to the emerging frequency of the word segmentation units in the revealing information, the click information and the transaction information of the object; determining a click rate and a click conversion rate of each word segmentation unit according to the revealing information, the click information and the transaction information of each word segmentation unit; determining a weight of each word segmentation unit as a weight corresponding to the object of each word segmentation unit according to the click rate and the click conversion rate of each word segmentation unit. The invention further provides a method for weight estimation for determining the weight of each object according to the current query information and the weight of each word segmentation unit. The invention further provides a method and a system for weight estimation. According to the method, the device and the system, the degree of accuracy for sorting is improved.

Description

technical field [0001] The present application relates to the field of network technologies, and in particular to a weight estimation method, device and system. Background technique [0002] Correlation is an important index to measure the quality of retrieval system, how to improve the correlation of the results returned by the system has always been the focus of research in the field of information retrieval. In traditional web search engines, measuring the relevance of a result to a query can be divided into two parts: dynamic relevance and static relevance. Dynamic relevance includes text relevance, topic relevance and click feedback (intent relevance), etc. Static correlation includes pagerank (page weight) and website authority. When sorting online, the final sorted results are recommended to users by weighting the combination of the above-mentioned correlation features. [0003] Whether it is a web page search or a product search, the system needs to return the res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06F17/27
CPCG06F16/90348G06F16/955G06F40/30
Inventor 程微宏
Owner ALIBABA GRP HLDG LTD
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