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Interactive multi-user space keyword query method

A query method and keyword technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as inability to solve cold start

Active Publication Date: 2018-10-30
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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Problems solved by technology

This method relies too much on the user's past query history and related information, and cannot solve a series of problems such as cold start

Method used

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  • Interactive multi-user space keyword query method
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  • Interactive multi-user space keyword query method

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Embodiment Construction

[0054] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

[0055] Such as figure 1 Shown, a kind of interactive multi-user space keyword query method is characterized in that, comprises the following steps:

[0056] S1. Spatial keyword data processing: regard the spatial location data carrying keywords as interest points p, and group them according to the spatial proximity of interest points p; each group is regarded as a minimum bounding rectangle, and each minimum bounding rectangle is regarded as a leaf node e i , the larger minimum bounding rectangle index covers one or more leaf nodes e i as an intermediate node e j Construct an IR tree; each leaf node e i and the intermediate node e j Each is associated with a keyword table;

[0057] S2. Construct a query request: Given a qu...

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Abstract

The present invention discloses an interactive multi-user space keyword query method, which comprises the steps of a spatial keyword data processing step S1, a configuration query request step S2, a query initialization step S3, a data query step S4, and a user interaction step S5. The present invention provides an interactive spatial keyword query method, which can be applied to the multi-user query scene; the hidden personal preference information of a querying user can be measured in a manner of interacting with the user, thereby providing the user with more accurate query results and improving user query satisfaction.

Description

technical field [0001] The invention relates to the field of spatial keyword query, in particular to an interactive multi-user spatial keyword query method. Background technique [0002] With the popularity of location services and smart terminals, location-based social network applications are closely related to people's lives. In this type of network, users will initiate a variety of query requests to meet their own query requirements, such as: top-k query, skyline query, and range query. However, these queries can only support query requests initiated by a single user, but are powerless to query requests in multi-user scenarios. In addition, users often have some latent preference information during query processing. However, these queries cannot effectively measure the preference information, so that the query results cannot accurately meet user preferences. Therefore, users need a multi-user space keyword query method that can effectively measure their hidden prefere...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 王勇郝玉洁林劼庞子卯高泽仁
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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