Analysis-ik is a Chinese text segmenter and analysis plugin for Lucene-based search engines. It provides a specialized analyzer for splitting Chinese sentences into meaningful words to improve indexing and search accuracy within Elasticsearch and OpenSearch.
The project features a dynamic dictionary manager that can load word libraries and stop-word files from remote HTTP endpoints. It monitors metadata headers on these remote files to trigger automatic vocabulary updates without requiring a service restart.
The analyzer supports both fine-grained exhaustive and coarse-grained smart segmentation modes. Users can further customize text processing through configuration-driven vocabulary extensions and custom dictionary definitions.