Disclosed are an address information parsing method and apparatus, a system and a data acquisition method. The address information parsing method comprises: acquiring, from original data, address information to be parsed; extracting, by means of a natural language processing technology, features of the address information to be parsed, making a selection on the extracted features, and vectorizing a selected feature to obtain a feature vector; inputting the feature vector into a preset model to obtain an initial array comprising geographic entities and administrative division levels corresponding to the geographic entities; sorting and deduplicating the geographic entities in the initial array according to the administrative division levels to obtain a standard array; and encoding the standard array to obtain a geocoding result. Geographic entities and the administrative division of address information are identified on the basis of a model, a rule base does not need to be constructed, and few resources are occupied. A prediction model is optimized by means of a feature selection algorithm, such that the prediction accuracy and a calculation rate are improved.

Address information parsing method and apparatus, system and data acquisition method

The invention discloses a geographic coding method and system based on Jieba word segmentation and an address word bank. The method comprises the steps: step 1, address data are collected, and an address database is established; step 2, carrying out word segmentation on an address character string input by a user; step 3, performing two rounds of address matching and address standardization; and step 4, mapping the standard address into a geographic coordinate. The system comprises an address database used for storing collected eight-level standard address data and geographic coordinates of the eight-level standard address data; a word segmentation module used for splitting the address character string input by the user; an accurate matching module used for carrying out step-by-step accurate matching on the split address array and complementing the father-level address; a fuzzy matching module used for carrying out fuzzy matching on the inaccurately matched address character strings and completing standardization of addresses; and a mapping module used for mapping the standardized address into geographic coordinates and returning the geographic coordinates to the user. The algorithm is simple, easy to understand and easy to program and implement.

Zhang Yue

Papers

Geographic coding method and system based on Jieba word segmentation and address word bank