Geocoding method and system, terminal and storage medium
A technology of geocoding and geographic coordinates, applied in the field of geocoding, can solve the problems affecting GIS software visualization, function analysis, inability to obtain spatial coordinate information, and disordered word order, so as to increase practicability, reduce quantity, and avoid waste of resources. Effect
Pending Publication Date: 2021-01-22
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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Problems solved by technology
However, the naming methods of geographical information such as place names and addresses in our country have the characteristics of messy semantics and chaotic word order, that is, there is no unified standard to standardize them
In addition, usually the geographic information that can be collected by ordinary departments and units is only a variety of textual descriptive information (non-spatial information) such as place name
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[0048]In order to make the purpose, technical solutions, and advantages of this application clearer, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the application, and not used to limit the application.
[0049]In view of the shortcomings of the prior art, the geocoding method of the embodiment of the application first performs data cleaning on the initial place name address data to prevent problems such as too many typos, spelling errors, and text duplication in the input text; then a place name address model is established to enable it Reflect the different representations of geographic names in a country or region, and then establish a geocoding library containing place-name data tables, building data tables, and door (floor) plate data tables based on the place-name address model, and use the N-shortest path optimiza...
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The invention relates to a geocoding method and system, a terminal and a storage medium. The method comprises the following steps: establishing a place name address model according to place name address data; establishing a geocoding library according to the place name address model, wherein the geocoding library comprises an administrative region entity data table, a street entity data table anda cell entity data table; based on the address dictionary, performing word segmentation and standardization processing on the place name address data by applying an N-shortest path optimization algorithm, and segmenting the place name address data into at least one word group; and converting the at least one word group into a character string in a predetermined format according to level elements in the place name address model, matching the character string with corresponding geographical coordinates in a geocoding library, and taking the geographical coordinates matched by the character string as standard geographical coordinates of the corresponding place name address. According to the method, the number of segmented word groups can be reduced as much as possible, all results needing tobe reserved can be contained, resource waste can be effectively avoided, and the search efficiency is improved.
Description
Technical field[0001]This application belongs to the technical field of geocoding, and particularly relates to a geocoding method, system, terminal and storage medium.Background technique[0002]Geographical information system, as a product of the combination of location service and information platform, has an increasingly wide range of applications. With the popularization and maturity of geographic information technology, many companies, units and government departments have established geographic information-based businesses, such as pharmaceuticals, media, etc., and the demand for management and operation with geographic information has become increasingly prominent. However, the naming methods of geographical information such as geographical names and addresses in our country are characterized by messy semantics and disordered word order, that is, there is no unified criterion to standardize them. In addition, the geographic information that can be collected by ordinary departme...
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Login to View More IPC IPC(8): G06F16/29G06F16/28G06F16/23
CPCG06F16/29G06F16/288G06F16/23
Inventor 钱静彭树宏陈朝亮
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI