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Apache Lucene Core

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A green key on the record, left, is one Decision Insights added. It doesn't exist on the company's site or in a wire feed. The same key labels its row on the right, so you can match them directly. More on how DI enriches a record.

The record

This is what the machine sees: the exact JSON-LD an agent receives for this listing.

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  "dateModified": "2026-08-27T03:10:34Z",
  "description": "Apache Lucene Core is a Java text search engine library for full-text indexing, querying, and relevance ranking in applications.",
  "keywords": [
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    "Application",
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    "Enterprise",
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      "name": "Storage"
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  "name": "Apache Lucene Core",
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What we add

Topic graph

A wire service tags a release with a category, once. It doesn't maintain a durable graph over time. We connect them to a topic graph an agent can query.

Storage https://decisioninsights.ai/term/sd-storage/ Application https://decisioninsights.ai/term/application/ Components https://decisioninsights.ai/term/components/ and 2 more

Counted facts

A protocol or open source project keeps no vendor list and publishes no figures of its own to check this against. This counts how it actually shows up across the graph -- articles that name it, the organizations named alongside it in those articles, similar projects, and organizations whose topic tags overlap with its own -- computed, not curated.

Related projects Apache Lucene, Apache PyLucene, Apache Lucene.Net 3.0.3, Apache Lucy, Apache Solr, Apache Commons Text, Apache Commons Lang, Apache Commons Related organizations Advanced MedioMatrix, CMO Internet Dienstleistungen, Nordavind, VictoriaMetrics, Webscout, 1-Net Singapore Pte, 321Net, Abacus.AI, Inc.