UDA + Virtuoso + OPAL: Secure access to data, information & knowledge—bringing trusted context to AI Agents, Skills & Tools so they can reason & act.
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Joined January 2009
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Agents that act for people need their own identities, plus a verifiable On-Behalf-Of (OBO) link back to the principal. That's how an agent can shop, query or transact through Virtuoso and OPAL with every action traceable to who authorized it.
Want to take a deep dive into how Virtuoso’s native vector indexing works—and how to use it?
See:
virtuoso.openlinksw.com/docs…
Here's a news update page that provides more details about the new HSNW vector indexing and related features enhancements.
github.com/openlink/virtuoso…
Even better news, there much more to come!
Another query, this time showcasing the impact on DBpedia i.e., vectors have been generated for literal objects in a DBpedia knowledge graph.
vec.demo.openlinksw.com/spar…
#VectorSimilarity #DBpedia #SPARQL #VirtuosoRDBMS #HowTo #AI
What does a sample SPARQL query that leverages vector similarity look like?
See:
[1] vec.demo.openlinksw.com/spar… -- Query Solution (Results)
[2] vec.demo.openlinksw.com/spar… -- Query Definition
#SPARQL #VectorSimilarity #VirtuosoRDBMS #HowTo
ONNX provides the bridge btw Virtuoso and local embedding models. By default, local embeddings are IBM’s granite-embedding-30m-english model based. Users can also use alternative models.
Embeddings from OpenAI, OpenAI-compatible APIs, etc. r also options for vector generation.
Architectural visualization.
#VectorSearch #VirtuosoRDBMS #SQL #SPARQL #AI #LLMs #KnowledgeGraph #Database
The commits, straight from the source:
HNSW indexing: github.com/openlink/virtuoso…
Merge into develop/7: github.com/openlink/virtuoso…
Full history: github.com/openlink/virtuoso…
Vectors, meet Virtuoso. Native HNSW vector indexing just landed in the Virtuoso Open Source develop/7 branch, with ONNX text embeddings and optimizer tuning alongside. Similarity search across native relational tables via SQL and RDF graphs via SPARQL, one engine. Enjoy!
Agents that act on email for a business have to tell a genuine instruction from a forged one. Digitally signed email gives them that check, and it matters even more once agents start placing orders and handling payments.
Hyperlinks let anyone access, mix and mesh content from many sources. The URIBurner Weblog shows AI agents doing exactly that on OpenLink Virtuoso: HTML docs in a WebDAV filesystem, loosely coupled to the knowledge graphs underneath.
The ability to access, mix, and mesh content from a variety of sources identified by hyperlinks, at Internet scale, is one of the most remarkable features of the communications medium created by the Web.
AI agents are exceptionally effective tools for harnessing the architecture and open standards underpinning the Web.
For instance, I can seamlessly incorporate a video presentation into a previously published article without changing the hyperlink that identifies it.
That's the power of hyperlinks, loose coupling, and the Web's enduring architecture.
Virtuoso Open Source (VOS) vs. QLever: 105 DBLP queries using the Sparqloscope benchmark.
Same machine. Documented configurations. Open results.
Reproducible and objective benchmarking.
linkeddata.uriburner.com/web…
People curate. Agents buy. Payments flow back. Every lap makes the next one faster. That's Linked Open Agentic Commerce (LOAC).
linkeddata.uriburner.com/web…
#AgenticCommerce #LOAC
Your AI Agents do not need a messy central copy of everything. Start with Virtuoso's virtualization layer: it harmonizes databases and filesystems on the fly into one context layer for AI Agents.
virtuoso.openlinksw.com/
#CDO #CAIO #DataSpaces #VirtuosoRDBMS
Your AI Agents do not need custom middleware to reach legacy databases. Start with Virtuoso: every record gets a URI and is served over HTTP as machine-computable data that authorized agents follow.
docs.openlinksw.com/virtuoso…
#CDIO #KnowledgeGraph #RDF #SQL
Your AI Agents do not need an LLM hardwired into your database. Start with Virtuoso as an MCP server: agents discover its tools and turn natural language into SQL or SPARQL, loosely coupled.
openlinksw.com/weblog/?post=…
#CAIO #CTO #Agentic #MCP
Your AI Agents do not need expensive copies of your data. Start with Virtuoso's Semantic Data Virtualization: one query spans SQL tables, knowledge graphs and WebDAV filesystems, with nothing moved.
community.openlinksw.com/t/v…
#CDO #CIO #DataSpaces #SQL
Your AI Agents do not need data trapped in isolated silos. Start with Virtuoso's Linked Data deployment: global identifiers (URIs), explicit relationships (RDF) and plain HTTP turn scattered records into one data space.
docs.openlinksw.com/virtuoso…
#CTO #LinkedData #SemanticWeb #RDF
Your AI Agents do not need more DBMS-specific wiring for ODBC-only databases to function as a source of record that delivers rich context. Start with our high-performance, secure (ABAC) multi-tier JDBC-to-ODBC Bridge.
uda.openlinksw.com/odbc/driv…
#JDBC #ODBC
Your AI Agents do not need more DBMS-specific wiring for ODBC data sources to function as a source of record that delivers rich context. Start with our high-performance, secure (ABAC) multi-tier ODBC-to-ODBC Bridge.
uda.openlinksw.com/odbc/driv…
#ODBC
