Not just Solr, but Luwak - and all open source
We've been helping Full Fact build automated factchecking software - both using Solr and a Lucene-based library called Luwak we originally developed for media monitoring, which can ingest a huge number of stored queries (which in this case would represent previously fact-checked claims) so they can be run against news, subtitles, transcripts etc. One key part of this is that all the software is open source - so we're hoping that the tools are available for factchecking organisations across the world to use and improve. We also ran a hackday a few weeks ago where we brought in 20 search experts from the London Lucene/Solr Meetup group we run to push development forward. Check out both our own Flax blog and Mevan's Full Fact blog for details - and let us know if you want to get involved!