# Apache Lucene Projects at AI Tinkerers

> Canonical HTML: https://aitinkerers.org/technologies/apache-lucene
> Markdown URL: https://aitinkerers.org/technologies/apache-lucene.md
> Technology record last updated: 2026-03-07T18:27:47Z
> Generated: 2026-08-25T14:05:19Z

Apache Lucene is a high-performance, full-featured text search engine library written entirely in Java.

Lucene serves as the core indexing and search logic for industry giants like Elasticsearch and Solr. It provides powerful features including ranked searching, field-based sorting, and simultaneous update/search capabilities. By utilizing an inverted index structure, Lucene delivers sub-second query speeds across massive datasets (billions of documents). It is the gold standard for developers requiring granular control over tokenization, stemming, and scoring algorithms.

- Official technology site: https://lucene.apache.org/
- Public AI Tinkerers demos and talks: 2
- Result page: 1 of 1

## Recent Public Talks and Demos

### [Más allá del RAG: Grafos universales para datos no universales](https://santiago.aitinkerers.org/talks/rsvp_Ic5kPKxkc3I)

Hoy, la mayoría de los sistemas de information retrieval usan arquitecturas tipo RAG o GraphRAG: se basan en búsqueda semántica, embeddings y modelos de lenguaje para recuperar información relevante.

- Event context: Estructura, Risa y Ecosistemas: el nuevo ADN de la IA Chilena — 2025-10-29 — Santiago
- Public talk page: https://santiago.aitinkerers.org/talks/rsvp_Ic5kPKxkc3I

### [Covariate Search](https://hong-kong.aitinkerers.org/talks/rsvp_bHTSKW0CfRo)

The first practical application of covariate search (with the potential of revolutionizing the search industry) by introducing a new modality. In the demo I am showcasing how we can vectorize a set of keywords semantically and perform a search on other sets (this is not currently possible with semantic search).

- Event context: AI Tinkerers - Hong Kong Meetup (December) - Inauguration — 2024-12-19 — Hong Kong
- Public talk page: https://hong-kong.aitinkerers.org/talks/rsvp_bHTSKW0CfRo

## Related Technologies

- [BM25](https://aitinkerers.org/technologies/bm25) ([Markdown](https://aitinkerers.org/technologies/bm25.md)) — 4 public demos
- [Elasticsearch](https://aitinkerers.org/technologies/elasticsearch) ([Markdown](https://aitinkerers.org/technologies/elasticsearch.md)) — 5 public demos
- [Embeddings](https://aitinkerers.org/technologies/embeddings) ([Markdown](https://aitinkerers.org/technologies/embeddings.md)) — 22 public demos
- [FAISS](https://aitinkerers.org/technologies/faiss) ([Markdown](https://aitinkerers.org/technologies/faiss.md)) — 17 public demos
- [HNSW](https://aitinkerers.org/technologies/hnsw) ([Markdown](https://aitinkerers.org/technologies/hnsw.md)) — 7 public demos
- [Solr](https://aitinkerers.org/technologies/solr) ([Markdown](https://aitinkerers.org/technologies/solr.md)) — 2 public demos
- [Terrier](https://aitinkerers.org/technologies/terrier) ([Markdown](https://aitinkerers.org/technologies/terrier.md)) — 2 public demos
- [TF-IDF](https://aitinkerers.org/technologies/tf-idf) ([Markdown](https://aitinkerers.org/technologies/tf-idf.md)) — 3 public demos
- [Covariate search](https://aitinkerers.org/technologies/covariate-search) ([Markdown](https://aitinkerers.org/technologies/covariate-search.md)) — 1 public demo
- [GraphRAG](https://aitinkerers.org/technologies/graphrag) ([Markdown](https://aitinkerers.org/technologies/graphrag.md)) — 13 public demos
- [Language Models](https://aitinkerers.org/technologies/language-models) ([Markdown](https://aitinkerers.org/technologies/language-models.md)) — 4 public demos
- [RAG](https://aitinkerers.org/technologies/rag) ([Markdown](https://aitinkerers.org/technologies/rag.md)) — 146 public demos
- [semantic search](https://aitinkerers.org/technologies/semantic-search) ([Markdown](https://aitinkerers.org/technologies/semantic-search.md)) — 5 public demos
- [Vector Search](https://aitinkerers.org/technologies/vector-search) ([Markdown](https://aitinkerers.org/technologies/vector-search.md)) — 12 public demos