Title: LIGHTHOUSE: Fast and precise distance to shoreline calculations from anywhere on earth Show Chinese title

Title: 灯塔：从地球任何地方快速精确计算到海岸线的距离

Abstract: We introduce a new dataset and algorithm for fast and efficient coastal distance calculations from Anywhere on Earth (AoE). Existing global coastal datasets are only available at coarse resolution (e.g. 1-4 km) which limits their utility. Publicly available satellite imagery combined with computer vision enable much higher precision. We provide a global coastline dataset at 10 meter resolution, a 100+ fold improvement in precision over existing data. To handle the computational challenge of querying at such an increased scale, we introduce a new library: Layered Iterative Geospatial Hierarchical Terrain-Oriented Unified Search Engine (Lighthouse). Lighthouse is both exceptionally fast and resource-efficient, requiring only 1 CPU and 2 GB of RAM to achieve millisecond online inference, making it well suited for real-time applications in resource-constrained environments. Show Chinese abstract

Abstract: 我们引入了一个新的数据集和算法，用于从地球任何地方（AoE）快速高效地计算沿海距离。 现有的全球沿海数据集仅在粗略分辨率（例如1-4公里）下可用，这限制了它们的实用性。 公开的卫星图像结合计算机视觉可以实现更高的精度。 我们提供了一个全球海岸线数据集，分辨率为10米，比现有数据的精度提高了100倍以上。 为了处理在如此大规模查询的计算挑战，我们引入了一个新库：分层迭代地理空间分层地形导向统一搜索引擎（Lighthouse）。 Lighthouse不仅非常快速且资源效率高，只需要1个CPU和2GB的RAM即可实现毫秒级在线推理，使其非常适合在资源受限环境中的实时应用。