PH-Tree

Java utilities for transforming distance along N-dimensional Hilbert Curve to a point and back. Also supports range splitting queries on the Hilbert Curve.

ST-Hadoop is an open-source MapReduce extension of Hadoop designed specially to analyze your spatio-temporal data efficiently

Spatial indexing algorithms for java

A Spatial-temporal Index.

a spatial index for neo4j 4.x

Generate a spatial index file from a TDB2 dataset

mqr-tree spatial index

Trapezoidal Map library — a data structure for fast point location queries

Naive implementation of Java KD-Bush(KD-tree) algorithm

Redis is an in-memory data structure project implementing a distributed, in-memory key-value database with optional durability. Redis supports different kinds of abstract data structures, such as strings, lists, maps, sets, sorted sets, HyperLogLogs, bitmaps, streams, and spatial indexes.

PhTree indices for CQEngine

PH-Tree