Matrix of minimum distance between toponyms (rivers and settlements/towns) in Poland

The matrix of distances between 205 rivers and 30,700 towns and villages in Poland published in CSV format. More details in the paper: R.Szczepanek, 2023, A Deep Learning Model of Spatial Distance and Named Entity Recognition (SD-NER) for Flood Marks Text Classification, Water.本数据集为波兰境内205条河流与30700个城镇村落之间的距离矩阵，以逗号分隔值（CSV）格式发布。 详细信息参见论文：R.Szczepanek，2023，《用于洪水标记文本分类的空间距离与命名实体识别（SD-NER）深度学习模型》，《水》。