Determination method, device, equipment and medium for recalling point-of-interest information

A technology for determining methods and points of interest, applied in the field of retrieval, which can solve problems such as repeated recall

Active Publication Date: 2021-03-30
BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above method has repeated recalls

Method used

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  • Determination method, device, equipment and medium for recalling point-of-interest information
  • Determination method, device, equipment and medium for recalling point-of-interest information
  • Determination method, device, equipment and medium for recalling point-of-interest information

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] figure 1 It is a flow chart of a method for determining recalled POI information provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation of deduplicating the repeatedly recalled POI information in the retrieval system. The method can be executed by a device for determining information on recalled points of interest, and the device can be implemented by software and / or hardware. see figure 1 , the method for determining the recall point of interest information provided in this embodiment includes:

[0031] S110. Select the current main word from each word included in the query sentence, and use the point-of-interest information including the current main word as candidate point-of-interest information.

[0032] Optionally, any word included in the query sentence can be used as the current main word.

[0033] Typically, the current main word is selected from each word included in the query sentence, including:

[0034] Accord...

Embodiment 2

[0060] figure 2 It is a flow chart of a method for determining recalled interest point information provided by Embodiment 2 of the present invention. This embodiment is an optional solution proposed on the basis of the foregoing embodiments. see figure 2 , the method for determining the recall point of interest information provided in this embodiment includes:

[0061] S210. Select the current main word from each word included in the query sentence, and use the point-of-interest information including the current main word as candidate point-of-interest information.

[0062] S220, according to the historical main word state of each word in the query sentence and the occurrence situation in the candidate point of interest information, perform POI occurrence state node, default state node and historical main word state node included in each branch in the state merging tree assignment.

[0063] Specifically, according to the historical main word status of each word in the qu...

Embodiment 3

[0073] This embodiment is based on the above-mentioned embodiment image 3 The state merge tree shown as an example is an optional solution proposed.

[0074] see image 3 , where AND (also expressed as and) is an AND operation, OR (also expressed as and) is an OR operation, and XOR (also expressed as xor) is an exclusive OR operation, all of which are logic operations. The XOR operation rule is: 0XOR 0=0, 0XOR 1=1, 1XOR 0=1, 1XOR 1=0. The circular node on the same layer as the OR node is the state node of the historical main word, and the value is 0 or 1. The term node under the OR node is a POI occurrence status node, which takes a value of 0 or 1, and the other is a default status node, which also takes a value of 0 or 1. The number of branches of the state merging tree is determined according to the number of words generated after the word segmentation processing of the query sentence.

[0075] Taking the query sentence as: China Merchants Industrial and Commercial Ban...

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Abstract

The embodiment of the invention discloses a method and device for determining recalled interest point information, equipment and a medium, and relates to the field of retrieval. The method comprises the following steps: selecting a current main word from words included in a query sentence, and taking interest point information including the current main word as candidate interest point information; And selecting recall interest point information from the candidate interest point information according to the historical main word state of each word in the query sentence and the occurrence condition in the candidate interest point information. The embodiment of the invention provides a determination method and device for recall interest point information, equipment and a medium. The determined recall interest point information is different.

Description

technical field [0001] The embodiments of the present invention relate to the field of retrieval, and in particular, to a method, device, device and medium for determining recalled point-of-interest information. Background technique [0002] Usually, the retrieval system will use POI (point of interest, point of interest) information including all terms (words) in the query (query sentence) as the final retrieval result. But the actual situation is that the user's query is ever-changing, and there are reasons such as redundancy or multiple intentions. Therefore, the above search results often cannot meet user needs. Therefore, it is necessary to expand and recall the retrieval results. [0003] The current term-based extended recall method includes: taking POIs including at least one term in the query as retrieval results. Taking the query as "China Merchants Industrial and Commercial Bank ATM" as an example, the final result after the expansion and recall can be China Me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/242
Inventor 吴石磊
Owner BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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