CrateDB is a distributed and scalable SQL database for storing and analyzing massive amounts of data in near real-time, even with complex queries. It is PostgreSQL-compatible, and based on Lucene.

A better compressed bitset in Java: used by Apache Spark, Netflix Atlas, Apache Pinot, Tablesaw, and many others

💕 build SSM from 0 👉🏽👉🏽 distributed micro service.

Apache Lucene open-source search software

Elassandra = Elasticsearch + Apache Cassandra

This is mavenised Luke: Lucene Toolbox Project

Apache Solr open-source search software

J2EE项目系列（四）–SSM框架构建积分系统和基本商品检索系统（Spring+SpringMVC+MyBatis+Lucene+Redis+MAVEN）

ik-analyzer for solr 7.x-8.x

Anserini is a Lucene toolkit for reproducible information retrieval research

Fess is very powerful and easily deployable Enterprise Search Server.

Lucene based secondary indexes for Cassandra

Hibernate Search: full-text search for domain model

Open-source Enterprise Grade Search Engine Software

面向Elasticsearch研发与运维人员，围绕集群、索引构建的零侵入、多租户的Elasticsearch GUI管控平台

Stroom is a highly scalable data storage, processing and analysis platform.

Score documents using embedding-vectors dot-product or cosine-similarity with ES Lucene engine

HanLP中文分词Lucene插件，支持包括Solr在内的基于Lucene的系统

一个非常hao用的elasticsearch(es)中文分词器插件

Tokenizer support Lucene5/6/7/8/9+ version, LTS