# The Scientific Institute for Generative Intelligence > SIGI is a research institute advancing the science of how AI systems select, rank, and attribute information sources. Founded in 2026 by Jessica Tavitian and Victor Tavitian, SIGI publishes open research into LLM citation behaviour, generative search patterns, and Generative Engine Optimisation (GEO) methodology. A research initiative of Tokyo Design Studio Pty Ltd, Sydney. ## Publications - [Sentiment Threshold Dynamics in LLM Evaluation of Service Provider Ratings (SIGI-2026-001)](https://generativeintelligence.institute/publications/SIGI-2026-001/) - [Replication Considerations and Methodological Validation of Rating-Sentiment Threshold Probes (SIGI-2026-002)](https://generativeintelligence.institute/publications/SIGI-2026-002/) - [The Price-Credibility U-Curve: How Service Pricing Affects LLM Sentiment Assessment (SIGI-2026-003)](https://generativeintelligence.institute/publications/SIGI-2026-003/) - [Methodological Framework for Pricing-Sentiment Probe Design (SIGI-2026-004)](https://generativeintelligence.institute/publications/SIGI-2026-004/) - [The Award Count Paradox: Non-Linear Credibility Assessment by Generative AI (SIGI-2026-005)](https://generativeintelligence.institute/publications/SIGI-2026-005/) - [All Publications (SIGI-2026-001 through SIGI-2026-100)](https://generativeintelligence.institute/publications/) ## Research Data - [Controlled Probe Experiments](https://generativeintelligence.institute/research/) - [Observational Datasets](https://generativeintelligence.institute/research/) - [Methodology & Protocols](https://generativeintelligence.institute/research/) ## Certification - [SIGI GEO Accreditation](https://generativeintelligence.institute/certification/) — Standards-based accreditation for GEO service providers, built on the SIGI 9000 framework ## Methodology - [Our Research Methodology](https://generativeintelligence.institute/methodology/) ## About - [About SIGI](https://generativeintelligence.institute/about/) - [Glossary of Terms](https://generativeintelligence.institute/glossary/) ## Team - [Research Team](https://generativeintelligence.institute/team/)