{"id":1,"date":"2025-06-22T11:59:37","date_gmt":"2025-06-22T11:59:37","guid":{"rendered":"https:\/\/www.chatsubolabs.com\/?p=1"},"modified":"2026-05-28T21:45:14","modified_gmt":"2026-05-28T21:45:14","slug":"hello-world","status":"publish","type":"post","link":"https:\/\/www.chatsubolabs.com\/?p=1","title":{"rendered":"Open-source graph database &amp; Prolog engine"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Problem:<\/strong> Existing RDF stores lacked native Prolog reasoning and the performance needed for large-scale knowledge representation in production AI systems.\n<br>\n<strong>What we built:<\/strong> Designed and built VivaceGraph \u2014 a full graph database, RDF store, and Prolog implementation in Common Lisp. The codebase is open source and has been adopted by researchers in AI and knowledge engineering worldwide.\n<br>\n<strong>Outcome:<\/strong> Actively maintained; forked and used across multiple research institutions. Available at <a href=\"https:\/\/github.com\/kraison\/vivace-graph-v3\">github.com\/kraison\/vivace-graph-v3<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Tags: Common Lisp \u00b7 Graph Databases \u00b7 Knowledge Representation \u00b7 Prolog \u00b7 Open Source<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Problem: Existing RDF stores lacked native Prolog reasoning and the performance needed for large-scale knowledge representation in production AI systems. What we built: Designed and built VivaceGraph \u2014 a full &#8230;<\/p>\n","protected":false},"author":1,"featured_media":99,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-1","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-projects"],"_links":{"self":[{"href":"https:\/\/www.chatsubolabs.com\/index.php?rest_route=\/wp\/v2\/posts\/1","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.chatsubolabs.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.chatsubolabs.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.chatsubolabs.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.chatsubolabs.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1"}],"version-history":[{"count":3,"href":"https:\/\/www.chatsubolabs.com\/index.php?rest_route=\/wp\/v2\/posts\/1\/revisions"}],"predecessor-version":[{"id":88,"href":"https:\/\/www.chatsubolabs.com\/index.php?rest_route=\/wp\/v2\/posts\/1\/revisions\/88"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.chatsubolabs.com\/index.php?rest_route=\/wp\/v2\/media\/99"}],"wp:attachment":[{"href":"https:\/\/www.chatsubolabs.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.chatsubolabs.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.chatsubolabs.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}