Resources & Research
Explore our collection of background materials, research papers, and interactive visualizations that explain the concepts and technologies behind the Semantic Data Charter™.
Featured: Interactive Infographic
Neuro-Symbolic AI & Semantic Data Charter™
An interactive infographic exploring the convergence of Neuro-Symbolic AI and the Semantic Data Charter™. This comprehensive visualization demonstrates how these two transformative technologies work together to create explainable, robust, and trustworthy artificial intelligence systems.
What you'll learn: The fundamental differences between neural networks and symbolic AI, how they complement each other, key research institutions advancing the field, and the critical role that semantic data governance plays in enabling truly intelligent systems.
Research Papers & Reports
Neuro-Symbolic AI and Semantic Data Charter: A Pathway to Explainable AI
This comprehensive research paper examines the technical foundations and practical applications of combining Neuro-Symbolic AI with the Semantic Data Charter™ framework. The document explores how integrating symbolic reasoning with neural learning creates AI systems that are not only powerful but also transparent and verifiable.
Key topics covered: The paradigm shift from pure neural networks to hybrid systems, the role of formal data governance in AI trustworthiness, real-world implementation challenges, and future research directions in explainable artificial intelligence.
Outliers: Noise or Discovery?
A critical examination of how data anomalies and outliers should be treated in modern data systems. This paper challenges the common practice of automatically dismissing outliers as "noise" and presents a framework for determining when exceptional values represent meaningful signals versus data quality issues.
Why it matters: In the context of the Semantic Data Charter™, proper handling of exceptional values is crucial for data integrity. This paper demonstrates how formal governance and semantic validation can help organizations distinguish between genuine insights and data errors, enabling both robust analytics and the preservation of potentially groundbreaking discoveries.
Technical Documentation
Standards Compliance Documentation
Complete overview of international standards, specifications, and protocols implemented in SDCStudio and enabled through the SDC4 Reference Model. This comprehensive guide covers W3C, ISO, IETF, and industry standards compliance.
Includes: RDF, OWL, SPARQL, SHACL, XSD schemas, ISO 21090 NULL Flavors, ISO 8601 temporal support, IETF language tags, NIEM patterns, Dublin Core metadata, spatio-temporal tagging, access control standards (HIPAA, GDPR, NIST), and complete standards reference matrix.
XSD Schema Documentation
Detailed technical documentation for the SDC4 (Semantic Data Charter Release 4.0) XSD schema. Browse the complete reference for all data types, elements, complex types, and simple types with their properties, constraints, and relationships.
Coverage includes: XdString, XdBoolean, XdQuantity, XdTemporal, XdFile, Cluster, Item, Audit, Attestation, Participation types, 15 ExceptionalValue types, list types, interval types, and all SDC4 reference model components with complete inheritance hierarchies.
FHIR Integration Guides
Complete technical documentation for integrating HL7 FHIR R4 with SDC4. Includes datatype analysis, holistic mapping guide, and quick reference decision matrix.
NIEM Integration Guides
Strategic analysis and technical documentation for NIEM → SDC4 migration. Covers architecture overview, semantic challenges, government-wide vision, person mapping, cross-domain reuse, core concepts, and quick reference.
X12 EDI Integration Guides
Solve the 40-year-old EDI implementation guide problem. Complete documentation covering X12 overview, implementation guide challenges, 850 Purchase Order mapping, and SDC4's revolutionary solution.
Web3 Integration Guides
Strategic vision for SDC4 as the universal data layer for decentralized systems. Includes X12 to Web3 bridge architecture and complete Web3 data layer vision covering blockchain integration, DAOs, token economics, and cross-chain interoperability.
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About Axius SDC
The Semantic Data Charter is developed by Axius SDC, Inc., an international team with 40+ years combined experience in semantic data and health informatics across the United States, Canada, and Brazil.
Learn more about our team