[SOLR-9480] Graph Traversal for Significantly Related Terms (Semantic Knowledge Graph)

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 7.4, 8.0
• Assignee: Chris M. Hostetter
• Reporter: Trey Grainger
• Created: 06/Sep/16 04:52
• Updated: 08/Jun/19 15:31
• Resolved: 22/May/18 18:01

Description

This issue is to track the contribution of the Semantic Knowledge Graph Solr Plugin (request handler), which exposes a graph-like interface for discovering and traversing significant relationships between entities within an inverted index.

This data model has been described in the following research paper: The Semantic Knowledge Graph: A compact, auto-generated model for real-time traversal and ranking of any relationship within a domain, as well as in presentations I gave in October 2015 at Lucene/Solr Revolution and November 2015 at the Bay Area Search Meetup.

The source code for this project is currently available at https://github.com/careerbuilder/semantic-knowledge-graph, and the folks at CareerBuilder (where this was built) have given me the go-ahead to now contribute this back to the Apache Solr Project, as well.

Check out the Github repository, research paper, or presentations for a more detailed description of this contribution. Initial patch coming soon.

Issue Links

• causes: SOLR-12882 Eliminate excessive lambda allocation in FacetFieldProcessorByHashDV.collectValFirstPhase
• is related to: SOLR-12567 Enhance JSON Facet aggregation syntax to support a JSON Object based "type:func" form that supports local params