中文地名数据清洗中的重复字段匹配

为了提高中文地名字段匹配的准确度，提出中文地名的相似重复检测与清洗策略和矩阵相似重复匹配方法. 该清洗策略采用矩阵相似重复匹配方法，通过矩阵运算计算中文地名数据之间相同字符或者词语出现的频率，利用频率计算两者之间的语义相似度和结构相似度，然后将语义和结构相似性有机结合，作为相似性判断和重复数据清洗的依据. 实验验证了该方法的可行性和有效性. 结果表明，该方法对于中文地名字段匹配在查准率和召回率方面优于已有的其他算法.

Duplicate Field Matching for Data Cleaning of Chinese Placenames

To improve accuracy of field matching of Chinese placenames, an approximate duplicate detection and cleaning strategy and a matrix approximate duplicate matching method are proposed. In the strategy, a matrix approximate duplicate matching method is used. Frequencies of the same Chinese characters or word between two Chinese placenames can first be calculated with a matrix operation. Semantic similarity and structure similarity can be calculated using the frequencies. By combining semantic and structure similarities, they are considered as the basis of duplicate detection and data cleaning. Simulation experiments are conducted to prove feasibility and validity of the method, showing that the matrix approximate duplicate matching method is better than other existing methods in terms of precision and recall ratio.