Sign in

Open Knowledge Graphs

@openknowledgegraphs.com
13 followers 19 following 54 posts

Discover knowledge graphs, ontologies, tools, and jobs across the open knowledge ecosystem. openknowledgegraphs.com

PostsRepliesMedia
Open Knowledge Graphs @openknowledgegraphs.com · 7h
🔎 Missing names? Dates stored as text? Too many values where you expected one? SHACL lets you define rules for RDF data and check your graph against them—catching problems before they reach your applications. openknowledgegraphs.com/resource/sha... #KnowledgeGraphs #DataQuality #SHACL
openknowledgegraphs.com
SHACL - Open Knowledge Graphs
W3C specification for validating graph-based data against a set of conditions
000
Open Knowledge Graphs @openknowledgegraphs.com · 15h
🧩 Working with RDF in JavaScript? N3.js 2.8.0 lets you choose whether matched data stays a fixed snapshot or tracks changes in the underlying store—useful when your graph keeps changing. openknowledgegraphs.com/software/n3-... @jeswr.bsky.social #LinkedData #JavaScript
openknowledgegraphs.com
N3.js - Open Knowledge Graphs
JavaScript implementation of the RDF.js specification for handling RDF data
000
Open Knowledge Graphs @openknowledgegraphs.com · 02/10/2026
♻️ What’s in a product—and how much is recycled? Schema.org 30.1 adds terms for Digital Product Passports, covering recycled content, substances of concern and conformity declarations. #LinkedData #Sustainability @danbri.bsky.social
schema.org
Schema.org - Schema.org
Schema.org is a set of extensible schemas that enables webmasters to embed structured data on their web pages for use by search engines and other applications.
010
Open Knowledge Graphs @openknowledgegraphs.com · 02/10/2026
💼 Databricks is hiring a Staff Product Manager, Agentic AI Applications. Help shape an AI platform combining knowledge graphs, live context and temporal memory. 📍 Mountain View / San Francisco CA www.databricks.com/company/care... #KnowledgeGraphs #Hiring @databricksinc.bsky.social @jfrankle.com
databricks.com
Staff Product Manager, Agentic AI Applications - Databricks
Staff Product Manager, Agentic AI Applications, Mountain View, California; San Francisco, California. Join us! Together we can use data to solve the challenges of tomorrow
000
Open Knowledge Graphs @openknowledgegraphs.com · 02/10/2026
🤖 Maintaining an ontology? ROBOT automates checks, comparisons and releases. 1.9.11 adds label language preferences for ontology comparisons and fixes for compressed files and multiple inputs. openknowledgegraphs.com/software/rob... @cmungall.bsky.social #Ontologies
openknowledgegraphs.com
ROBOT is an OBO Tool - Open Knowledge Graphs
high-level tool for working with OBO ontologies
010
Open Knowledge Graphs @openknowledgegraphs.com · 02/10/2026
🦀 FalkorDB 6.0 (@falkordb.bsky.social) was just released. 6.0 brings a new Rust engine to the graph database, keeping existing Cypher queries and client libraries. github.com/FalkorDB/Fal... #KnowledgeGraphs #GraphDatabases
github.com
Release v6.0.0 · FalkorDB/FalkorDB
FalkorDB 6.0.0 FalkorDB 6.0 is the first release of the new FalkorDB engine, written in Rust. It replaces the C engine that shipped in every 4.x release. For applications nothing changes: it is sti...
000
Open Knowledge Graphs @openknowledgegraphs.com · 02/10/2026
📚 Who created it? When was it published? Can I reuse it? Dublin Core Metadata Terms from @dublincore.org provides shared terms for creators, dates and rights—making metadata easier to exchange. openknowledgegraphs.com/resource/dub... #LinkedData #Metadata
openknowledgegraphs.com
Dublin Core Metadata Terms - Open Knowledge Graphs
Extended vocabulary of metadata terms maintained by DCMI; includes DCMES elements plus properties, classes, datatypes, and encoding schemes for RDF and Linked Data
000
Open Knowledge Graphs @openknowledgegraphs.com · 02/10/2026
💼 Build ontologies for national security missions. @jhuapl.bsky.social is hiring a Senior Ontologist in Laurel, MD. OWL, RDF, SPARQL and Python skills wanted. On-site; U.S. citizenship and TS/SCI clearance eligibility required. careers.jhuapl.edu/jobs/59088 #Ontology #Jobs
careers.jhuapl.edu
Senior Ontologist in Laurel, Maryland | Johns Hopkins Applied Physics Laboratory
Johns Hopkins APL is hiring a Senior Ontologist in Laurel, Maryland. Review all of the job details and apply today!
000
Open Knowledge Graphs @openknowledgegraphs.com · 02/10/2026
🌱 What connects soil, crops, fisheries and forestry? AGROVOC from @fao.org gives each concept a shared identifier and labels in multiple languages—helping researchers find and connect related work. openknowledgegraphs.com/resource/agr... #LinkedData #Agriculture
openknowledgegraphs.com
AGROVOC - Open Knowledge Graphs
controlled vocabulary covering all areas of interest of the Food and Agriculture Organization of the United Nations (such as food, nutrition, agriculture, fisheries, forestry, environment etc.) publis...
000
Open Knowledge Graphs @openknowledgegraphs.com · 02/10/2026
📚 A novel, its paperback edition, and your library’s copy are different things. BIBFRAME from @librarycongress.bsky.social models them as Work, Instance, and Item—bringing library catalogs into Linked Data. openknowledgegraphs.com/resource/bib... #LinkedData #Libraries
openknowledgegraphs.com
BIBFRAME - Open Knowledge Graphs
data model and vocabulary for bibliographic description
000
Open Knowledge Graphs @openknowledgegraphs.com · 02/10/2026
📊 Interested in economics? The STW Thesaurus from @zbw-leibniz.bsky.social connects subject headings and alternative terms to help researchers find relevant work. Available as Linked Data. openknowledgegraphs.com/resource/stw... #LinkedData #Economics
openknowledgegraphs.com
STW Thesaurus for Economics - Open Knowledge Graphs
standardized subject headings and additional entry terms for the field of economics
010
Open Knowledge Graphs @openknowledgegraphs.com · 01/10/2026
🧬 How do you compare gene functions across species? @geneontology.bsky.social provides shared terms for molecular activities, biological processes, and cellular locations—connecting findings across organisms. openknowledgegraphs.com/resource/gen... #Ontologies #OpenScience
openknowledgegraphs.com
Gene Ontology - Open Knowledge Graphs
ontology for describing the function of genes and gene products
000
Open Knowledge Graphs @openknowledgegraphs.com · 01/10/2026
🌍 Searching across languages? The UNESCO Thesaurus from UNESCO connects concepts across five languages, helping libraries and researchers organize and discover information. Available as SKOS/RDF. openknowledgegraphs.com/resource/une... #LinkedData #OpenKnowledge
openknowledgegraphs.com
UNESCO Thesaurus - Open Knowledge Graphs
multilingual thesaurus for information retrieval by UNESCO
000
Open Knowledge Graphs @openknowledgegraphs.com · 01/10/2026
🐕 Different names for the same animal breed? The Vertebrate Breed Ontology brings breed names and synonyms together across species. Built with @monarchinitiative.bsky.social and collaborators. openknowledgegraphs.com/resource/ver... #Ontologies #OpenScience
openknowledgegraphs.com
Vertebrate Breed Ontology - Open Knowledge Graphs
ontology for vertebrate breed classification and characteristics
000
Open Knowledge Graphs @openknowledgegraphs.com · 01/10/2026
🧪 Same molecule, different names? ChEBI from @ebi.embl.org gives chemical entities shared identifiers and connects them by structure and biological role—helping bring chemistry datasets together. openknowledgegraphs.com/resource/che... #KnowledgeGraphs #OpenScience
openknowledgegraphs.com
ChEBI - Open Knowledge Graphs
database and ontology of molecular entities focused on small chemical compounds
000
Open Knowledge Graphs @openknowledgegraphs.com · 01/10/2026
🎨 How do museums connect collections across languages? @gettymuseum.bsky.social's Art & Architecture Thesaurus links terms for materials, styles, and objects. Available as Linked Open Data. openknowledgegraphs.com/resource/art... #LinkedData #CulturalHeritage
openknowledgegraphs.com
Art & Architecture Thesaurus - Open Knowledge Graphs
thesaurus for describing items of art, architecture, and material culture
010
Open Knowledge Graphs @openknowledgegraphs.com · 01/10/2026
🦆 Working with RDF in DuckDB (@duckdb.org)? duck_rdf 2.8.3 is out with SPARQL enhancements, Turtle/quads export fixes, and performance improvements. Read, write, and query RDF alongside your SQL workflows. Release notes: github.com/nonodename/d... #KnowledgeGraphs #DuckDB
github.com
Release v2.8.3 · nonodename/duck_rdf
What's Changed Sparql enhancements by @nonodename in #72 Merge in sql2rdf 2.1.7 by @nonodename in #75 Restore prior allow_parser_override_extension setting on disable_sparql_parser by @nonodename ...
083
Open Knowledge Graphs @openknowledgegraphs.com · 30/09/2026
🔎 Where did your data come from? PROV-O lets you describe its sources, the steps that transformed it, and the people or software involved—making provenance part of your knowledge graph. www.w3.org/TR/prov-o/ #KnowledgeGraphs #LinkedData
w3.org
100
Open Knowledge Graphs @openknowledgegraphs.com · 30/09/2026
🔎 Publishing datasets people struggle to find? DCAT provides a shared vocabulary for describing datasets and data services, helping catalogs exchange metadata and making data easier to discover across portals. openknowledgegraphs.com/resource/dcat/ #LinkedData #OpenData
openknowledgegraphs.com
DCAT - Open Knowledge Graphs
data format for metadata about datasets
000
Open Knowledge Graphs @openknowledgegraphs.com · 30/09/2026
@neo4j.com is hiring a Sr. AI Solutions Architect to build AI applications combining knowledge graphs and LLMs. 🇺🇸 US remote · up to 50% travel 💰 $200K–$265K on-target earnings job-boards.greenhouse.io/neo4j/jobs/4... #KnowledgeGraphs #Hiring
job-boards.greenhouse.io
Sr. AI Solutions Architect
Remote: United States
010
Open Knowledge Graphs @openknowledgegraphs.com · 30/09/2026
Mendix (Siemens) is hiring a Principal Pre-Sales Consultant – Knowledge Graph. 📍 Rotterdam · Hybrid · Full-time Dutch + English required 💰 €85.1K–€123.4K/year (30% target incentive included) jobs.lever.co/mendix/64043... #KnowledgeGraphs #Hiring
jobs.lever.co
Mendix - Principal Pre-Sales Consultant – Knowledge Graph
Company Overview Siemens Digital Industries Software is a leading provider of solutions for the design, simulation, and manufacture of products across many different industries. Formula 1 cars, skyscr...
000
Open Knowledge Graphs @openknowledgegraphs.com · 30/09/2026
🔎 Sparnatural 13.1.0 landed Sept 24! Build SPARQL queries visually, without writing code. This release adds templates to customize dropdown lists, autocomplete and tree views. openknowledgegraphs.com/software/spa... #KnowledgeGraphs #LinkedData
openknowledgegraphs.com
Sparnatural - Open Knowledge Graphs
visual knowledge graph explorer with SPARQL, in the browser, configurable with SHACL
000
Open Knowledge Graphs @openknowledgegraphs.com · 30/09/2026
📏 QUDT 3.5.2 landed! The vocabulary for quantities and units adds SHACL checks for dimension-vector quality, new mass-ratio units (g/tonne and kg/tonne), and fixes to dimension-vector classifications. github.com/qudt/qudt-pu... #KnowledgeGraphs #OpenScience
github.com
Release v3.5.2 · qudt/qudt-public-repo
This Release contains relatively minor updates and fixes. Changes 3.5.2 - 2026-09-22 Added Added SHACL QA shapes to catch QuantityKindDimensionVector data-quality issues going forward: missing uni...
010
Open Knowledge Graphs @openknowledgegraphs.com · 29/09/2026
🦀 Building with RDF? Oxigraph is an open-source graph database written in Rust, with SPARQL support and Python and JavaScript bindings. Query your knowledge graph from your app or the command line. openknowledgegraphs.com/software/oxi... #KnowledgeGraphs #OpenSource
openknowledgegraphs.com
Oxigraph - Open Knowledge Graphs
embeddable SPARQL and RDF graph database written in Rust, with Python, JavaScript, and CLI bindings
010
Open Knowledge Graphs @openknowledgegraphs.com · 29/09/2026
🚀 @surrealdb.com 3.3.0 is out! The database combines documents, graphs and vectors. This release adds Postgres client connectivity, streaming results and faster graph traversals. openknowledgegraphs.com/software/sur... #KnowledgeGraphs
openknowledgegraphs.com
SurrealDB - Open Knowledge Graphs
multi-modal database system written in Rust
050
Open Knowledge Graphs @openknowledgegraphs.com · 29/09/2026
🧬 Connecting disease data across datasets? @diseaseontology.bsky.social provides shared definitions and identifiers for human diseases, helping researchers bring biomedical data together. Free to reuse under CC0. openknowledgegraphs.com/resource/dis... #Ontologies
openknowledgegraphs.com
Disease Ontology - Open Knowledge Graphs
formal ontology of human disease
000
Open Knowledge Graphs @openknowledgegraphs.com · 29/09/2026
🔎 How FAIR is your research data? F-UJI is an open-source tool that checks datasets against FAIR metrics. @epcc.bsky.social has also extended it to assess research software. openknowledgegraphs.com/software/f-u... #OpenScience #FAIRdata
openknowledgegraphs.com
F-UJI - Open Knowledge Graphs
FAIRsFAIR Research Data Object Assessment Service
010
Open Knowledge Graphs @openknowledgegraphs.com · 28/09/2026
Have a taxonomy people struggle to navigate? Skosmos from @kansalliskirjasto.fi turns SKOS vocabularies into searchable, multilingual websites—with concept hierarchies and an API. Free and open source. skosmos.org #KnowledgeGraphs #LinkedData
skosmos.org
010
Open Knowledge Graphs @openknowledgegraphs.com · 28/09/2026
Turning text into structured knowledge? OntoGPT combines LLMs with ontology grounding to extract entities and relationships. An open-source tool from @monarchinitiative.bsky.social openknowledgegraphs.com/software/ont... #KnowledgeGraphs #OpenSource
openknowledgegraphs.com
Comunica - Open Knowledge Graphs
modular knowledge-graph querying framework
000
Open Knowledge Graphs @openknowledgegraphs.com · 28/09/2026
@neo4j.com is hiring a Software Engineer for its Sharding team. 📍 London or Malmö Build Go services and Kubernetes infrastructure to scale distributed graph databases on Neo4j Aura. job-boards.greenhouse.io/neo4j/jobs/4... #GraphDatabases #Hiring
job-boards.greenhouse.io
Software Engineer - Go/Kubernetes, Sharding team
London; Malmö
000
Open Knowledge Graphs @openknowledgegraphs.com · 28/09/2026
Magicforce is recruiting an AI Architect with Stardog, knowledge graph, agentic AI and ML experience for healthcare applications. www.dice.com/job-detail/e... #KnowledgeGraphs #Hiring
dice.com
AI Architect With Stardog Exp. - Magicforce - Remote
2 days ago - As an AI Architect, you will be a part of an Agile team to build healthcare applications and implement new features while adhering...
000
Open Knowledge Graphs @openknowledgegraphs.com · 28/09/2026
Define your data model in YAML, validate your data, and generate JSON Schema, Python classes and RDF representations. That’s LinkML. Explore on OKG: openknowledgegraphs.com/resource/lin... @linkml.bsky.social #LinkedData #OpenSource
openknowledgegraphs.com
LinkML - Open Knowledge Graphs
flexible modeling framework that allow for working with semantic web standards alongside a modern data stack
010
Open Knowledge Graphs @openknowledgegraphs.com · 27/09/2026
Connecting materials, manufacturing processes and test results? MaterialDigital’s core ontology provides a shared vocabulary for materials science. Version 3.1.1 on OKG: openknowledgegraphs.com/resource/pla... @bamresearch.bsky.social #MaterialsScience
openknowledgegraphs.com
Platform Material Digital core ontology - Open Knowledge Graphs
materials science mid-level ontology building on BFO
010
Open Knowledge Graphs @openknowledgegraphs.com · 27/09/2026
Why does one paper cite another—to support a claim, extend an idea, or use a method? CiTO makes those relationships explicit. Version 2.9.0 is listed on OKG: openknowledgegraphs.com/resource/cit... #OpenScience #KnowledgeGraphs @essepuntato.bsky.social @opencitations.bsky.social
github.com
Release v3.5.2 · qudt/qudt-public-repo
This Release contains relatively minor updates and fixes. Changes 3.5.2 - 2026-09-22 Added Added SHACL QA shapes to catch QuantityKindDimensionVector data-quality issues going forward: missing uni...
011
Open Knowledge Graphs @openknowledgegraphs.com · 26/09/2026
Query relational data with SPARQL. Ontop maps existing databases into a virtual knowledge graph, without requiring a separate RDF copy. Explore on OK: openknowledgegraphs.com/software/ont... #KnowledgeGraphs #LinkedData
openknowledgegraphs.com
ontop - Open Knowledge Graphs
platform to query relational databases as Virtual RDF Knowledge Graphs using SPARQL
000
Open Knowledge Graphs @openknowledgegraphs.com · 26/09/2026
Working with RDF in Rust or Python? Oxigraph is a graph database with SPARQL querying, Python bindings, and JavaScript support. Explore on OKG (openknowledgegraphs.com/software/oxi...). #KnowledgeGraphs #Rust #OpenSource
openknowledgegraphs.com
Oxigraph - Open Knowledge Graphs
embeddable SPARQL and RDF graph database written in Rust, with Python, JavaScript, and CLI bindings
020
Open Knowledge Graphs @openknowledgegraphs.com · 26/09/2026
Working with RDF in Java? Eclipse RDF4J provides tools for storing, querying, and processing linked data. Version 6.1.0 is listed on OKG: openknowledgegraphs.com/software/rdf... #Java #LinkedData #SemanticWeb
openknowledgegraphs.com
RDF4J - Open Knowledge Graphs
Eclipse RDF4J: scalable RDF for Java
000
Open Knowledge Graphs @openknowledgegraphs.com · 26/09/2026
MITRE's D3FEND maps cybersecurity countermeasures and their relationships—a practical knowledge graph for understanding defensive techniques. Version 1.6.0 is listed on OKG: openknowledgegraphs.com/resource/mit... #Cybersecurity #KnowledgeGraphs
openknowledgegraphs.com
MITRE D3FEND - Open Knowledge Graphs
knowledge graph of cybersecurity countermeasures
000
Open Knowledge Graphs @openknowledgegraphs.com · 25/09/2026
Schema.org 30.1 is listed on Open Knowledge Graphs. A shared vocabulary for describing things like people, organizations, events, and products on the web. Explore: openknowledgegraphs.com/resource/sch... #LinkedData #SemanticWeb
schema.org
Schema.org - Schema.org
Schema.org is a set of extensible schemas that enables webmasters to embed structured data on their web pages for use by search engines and other applications.
010
Open Knowledge Graphs @openknowledgegraphs.com · 25/09/2026
New to Open Knowledge Graphs: Opsis—a lightweight browser for exploring RDF knowledge graphs through SPARQL endpoints. Built by Ivo Velitchkov (@velitchkov.eu) Explore it: openknowledgegraphs.com/software/ops... #KnowledgeGraphs #SemanticWeb
openknowledgegraphs.com
Opsis - Open Knowledge Graphs
single-file faceted browser for RDF graphs using SPARQL endpoints
020
Open Knowledge Graphs @openknowledgegraphs.com · 25/09/2026
Ontology2Graph 1.0 is out. Start with an RDFS/OWL ontology and generate synthetic knowledge graphs using generative AI and graph fusion. Release notes: github.com/Orange-OpenS...) #KnowledgeGraphs #Ontologies #SyntheticData
github.com
Release v1.0 "pfia2026" · Orange-OpenSource/Ontology2Graph
The Ontology2Graph project as described in the "Sur la génération de grands graphes de connaissances synthétiques à l’aide de modèles de langage (LLM) via une approche Ontology2Graph" paper present...
000
Open Knowledge Graphs @openknowledgegraphs.com · 24/09/2026
ArandoDB 3.12.12 is out, with query correctness fixes, clearer backup/restore errors, and web UI fixes. A maintenance release for the database combining graph, document, and key-value models. Changelog: github.com/arangodb/ara... #GraphDatabase
github.com
arangodb/CHANGELOG at v3.12.12 · arangodb/arangodb
🥑 ArangoDB is a native multi-model database with flexible data models for documents, graphs, and key-values. Build high performance applications using a convenient SQL-like query language or JavaSc...
000
Open Knowledge Graphs @openknowledgegraphs.com · 23/09/2026
Prez Linked Data API 4.25.0 is out. Building on RDF? Prez helps publish Linked Data through profile-based APIs and web interfaces. Release notes: github.com/RDFLib/prez/... #LinkedData #SemanticWeb
github.com
Release v4.25.0 · RDFLib/prez
4.25.0 (2026-09-23) Features overhaul structured request and performance logging (#481) (cef1c4a)
010
Open Knowledge Graphs @openknowledgegraphs.com · 23/09/2026
OriginTrail DKG 10.0.18 is out: faster node startup, fewer blockchain calls, and automatic recovery for interrupted publishing. Infrastructure for persistent, shared AI-agent memory. Release notes (github.com/OriginTrail/...) #KnowledgeGraphs #AgentMemory
github.com
Release v10.0.18 · OriginTrail/dkg
DKG v10.0.18 Nodes for AI agents now run leaner and get up to speed in seconds. DKG v10.0.18 cuts the blockchain traffic a node generates and speeds up how quickly a new node becomes useful. Edge n...
010
Open Knowledge Graphs @openknowledgegraphs.com · 23/09/2026
RDA Vocabularies 5.5.0 is out! The release supports the October 2026 RDA Toolkit update, with element deprecations and updated translations. Explore on OKG: openknowledgegraphs.com/resource/rda... #LinkedData #SemanticWeb
openknowledgegraphs.com
RDA value vocabularies - Open Knowledge Graphs
vocabulary encoding schemes for specified RDA properties
000
Open Knowledge Graphs @openknowledgegraphs.com · 22/09/2026
fluree 4.2.1 is out! The graph database’s latest update includes RDF 1.2 support improvements and SHACL rule validation fixes. Explore it on OKG: openknowledgegraphs.com/software/flu... #KnowledgeGraphs #SemanticWeb
openknowledgegraphs.com
fluree - Open Knowledge Graphs
Fluree’s platform enables trusted, linked, and composable data
000
Open Knowledge Graphs @openknowledgegraphs.com · 22/09/2026
Lockheed Martin (@lockheedmartian.bsky.social) is hiring: A/AI Machine Learning Engineering Senior. 🇺🇸 US remote 💰 $110,300–$204,900/year Knowledge graphs, SPARQL, and LLMs. himalayas.app/companies/lo... Full catalog of jobs and resources: openknowledgegraphs.com?tab=jobs #KnowledgeGraphs #Hiring
himalayas.app
Remote A/AI Machine Learning Engineering Senior Job at Lockheed Martin Corporation
Lockheed Martin Corporation is hiring a remote A/AI Machine Learning Engineering Senior. Apply now on Himalayas.
000
Open Knowledge Graphs @openknowledgegraphs.com · 19/09/2026
#JPMorgan is hiring a Lead Software Engineer in London. #Python, cloud data & AI/ML engineering. Experience with #LLMs, #RAG and knowledge graphs preferred. jpmc.fa.oraclecloud.com/hcmUI/Candid... Full list of open KG jobs: openknowledgegraphs.com?tab=jobs #KnowledgeGraphs #Hiring
jpmc.fa.oraclecloud.com
Lead Software Engineer - Python, Data, Cloud, AIML
Design and deliver market-leading technology products in a secure and scalable way as a seasoned member of an agile team
000
Open Knowledge Graphs @openknowledgegraphs.com · 19/09/2026
Cognee (@cognee.bsky.social) 1.6.0 is out! Knowledge-graph memory for AI agents, with improved local workflows, crash recovery, and MCP integration. Explore on OKG: openknowledgegraphs.com/software/cog... #KnowledgeGraphs #OpenSource
openknowledgegraphs.com
Cognee - Open Knowledge Graphs
open-source framework that builds ontology-grounded knowledge graphs as persistent memory for AI agents
010
Open Knowledge Graphs @openknowledgegraphs.com · 18/09/2026
New to OKG: XwkOnt Core Ontology—a framework connecting upper ontologies including BFO, DOLCE, GFO and SUMO. openknowledgegraphs.com/resource/xwk... #Ontology #KnowledgeGraphs #SemanticWeb
openknowledgegraphs.com
XwkOnt Core Ontology - Open Knowledge Graphs
foundational framework ontology mapping other upper ontologies
010