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Index library construction method and device and index library search method and device

A construction method and index library technology, which is applied in text database indexing, geographic information database, structured data retrieval, etc., can solve problems affecting search efficiency and large search range

Active Publication Date: 2019-07-16
BEIJING SOGOU TECHNOLOGY DEVELOPMENT CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Obviously, the existing Poi search scheme is mainly to search according to the Poi name, and the search range is too large, which affects the search efficiency

Method used

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  • Index library construction method and device and index library search method and device
  • Index library construction method and device and index library search method and device
  • Index library construction method and device and index library search method and device

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Embodiment Construction

[0060] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0061]In the process of users searching for Poi, users have relatively clear geographical requirements. One of the core ideas of the embodiment of the present invention is: after the inverted index of Poi is created, the inverted index of Poi is divided into blocks according to the city to which Poi belongs to obtain city-based index blocks; thus, in the subsequent search process, you can Search in the index block according to the city of the Poi to be searched, that is, narrow the search range, thereby improving the search efficiency.

[0062] refer to figure 1 , which shows a flow chart of the steps of an embodiment of the method for establishing an index library according to the present invention, which may specifically includ...

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Abstract

The embodiment of the invention provides an index library construction method and device and an index library search method and device. The index library construction method comprises: scanning the steps that a data source of interest points Poi, and determining attribute information and city information of the Poi; creating an inverted index of the Poi according to the attribute information of each Poi; segmenting the inverted index of the Poi according to the city information to obtain index blocks based on the city information; and constructing a Poi index library according to the index blocks. According to the embodiment of the invention, a Poi index library is constructed based on urban index blocks; the purpose of storing the Poi according to the cities to which the Poi belongs is achieved, so that in the subsequent searching process, searching can be conducted according to the index blocks, corresponding to the cities to which the Poi belongs, in the Poi index library, the searching range is narrowed, and then the searching efficiency is improved.

Description

technical field [0001] The present invention relates to the field of search technology, in particular to an index library construction method, an index library-based search method, an index library construction device, an index library-based search device, a device and a readable storage medium. Background technique [0002] With the rapid development of the mobile Internet, more and more users use the network to obtain services, such as information network services based on Point of Interest (Poi). Poi refers to data that people are interested in, such as restaurants, scenic spots, schools and other buildings, or road information such as Beijing-Tibet Expressway, etc. [0003] At present, more and more users use mobile terminals to search Poi on the map. Specifically, the existing Poi search solution usually determines the corresponding Poi name according to the query word input by the user, and searches for the corresponding Poi results at different locations on the map ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/31G06F16/29G06F16/9535G06F16/9537
CPCG06F16/29G06F16/319G06F16/9537G06F16/9535
Inventor 谭鑫
Owner BEIJING SOGOU TECHNOLOGY DEVELOPMENT CO LTD
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