USA Road Network Graph and Points-of-Interest Dataset

This dataset contains information related to the USA road network for evaluating the performance of POI search queries. Specifically, it contains a "graph" file defining the road network graph, a "coordinates" file detailing the lat/longs of each road network vertex, and files listing the locations of various points-of-interest by their corresponding road network vertex (by ID). The dataset also includes a smaller subset of each file corresponding to the North-West US region. Sources: The road network graphs are based on public-domain datasets provided by the 9th DIMACS Challenge. These have been processed for consistency (e.g., extracting the largest connected component). The POIs are based on data from the OpenStreetMap (© OpenStreetMap contributors) database by Gisgraphy. POIs have been mapped to the nearest road network vertex.本数据集包含用于评估兴趣点（Point of Interest, POI）搜索查询性能的美国道路网络相关数据。具体而言，其包含定义道路网络图的"graph"文件、详细记录各道路网络顶点经纬度信息的"coordinates"文件，以及按对应道路网络顶点（以ID标识）列出各类兴趣点位置的配套文件。此外，本数据集还提供了对应美国西北部区域的各文件的精简子集。 数据集来源： 本数据集的道路网络图基于第9届DIMACS挑战赛提供的公有领域数据集，已针对一致性进行预处理（例如提取其中最大的连通分量）。 兴趣点数据源自Gisgraphy基于OpenStreetMap（© OpenStreetMap贡献者）数据库采集的信息，所有兴趣点均已匹配至距离最近的道路网络顶点。