According to the traffic accident site positioning method based on natural language processing provided by the invention, the problem that spatial location positioning is inaccurate when traffic accident information input based on natural language is directly performed is fully considered, and standardized accident site text information is obtained by combining a stop word list and a text analysis method of a regular expression for word segmentation; information for accident positioning is obtained; using a road retrieval technology to obtain a digital road information data set R based on latitude and longitude description and corresponding to the road where the accident occurs, and using a geocoding technology to calculate the accident site text information in the accident positioning information into a latitude and longitude digital information site to obtain an original accident site P; and then projecting the point P on the digital road information data set R by using a road projection calculation method, and accurately finding a final positioning point corresponding to the to-be-processed data on an accident road.
本申请提供的一种基于自然语言处理的交通事故地点定位方法,充分考虑到基于自然语言输入的交通事故信息直接进行空间位置定位不准确的问题,结合停用词表和分词用正则表达式的文本解析方法获取标准化事故地点文本信息,得到事故定位用信息;使用道路检索技术,获取事故发生道路对应的基于经纬度描述的数字化道路信息数据集R,以及使用地理编码技术将事故定位用信息中的事故地点文字信息解算成经纬度数字信息地点,得到原始事故地点P;然后使用道路投影计算方法,将点P在数字化道路信息数据集R上进行投影,在事故发生道路上准确地找到待处理数据对应的最终定位点。
Traffic accident site positioning method and system based on natural language processing
一种基于自然语言处理的交通事故地点定位方法及系统
2023-11-03
Patent
Electronic Resource
Chinese
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