Amr Awadallah
Founder & CEO, Vectara | Co-Founder, Cloudera | Hallucination Mitigation & Agentic RAG Pioneer
Founder and CEO of Vectara, co-founder and former CTO of Cloudera (NYSE: CLDR), and former VP of Developer Relations at Google Cloud. PhD in Electrical Engineering from Stanford University. Pioneer of distributed big data systems and modern Agentic Retrieval-Augmented Generation (RAG). Created the Vectara Hughes Hallucination Evaluation Model (HHEM), the industry-benchmark leaderboard measuring factual consistency across foundational LLMs.
Areas of focus
Professional niches
Proof of Work
Vectara: End-to-End GenAI & Hybrid Search Platform
Architected an enterprise GenAI platform integrating hybrid retrieval (BM25 keyword + dense semantic embeddings), cross-attentional reranking, and citation-grounded RAG with automated hallucination scoring.
Cross-encoder reranking adds computational latency to large top-k query passes compared to pure bi-encoder dot-product search.
Context: Distributed vector storage, hybrid neural retrieval, SOC2 Type II compliance.
View missionHughes Hallucination Evaluation Model (HHEM)
Engineered an open-source factual consistency classifier calculating the precise probability that an LLM-generated summary hallucinated information not present in the reference context document.
Focuses on text summarization fidelity; does not evaluate arithmetic reasoning or multi-hop logical deductions.
Context: RoBERTa-based factual entailing model, Hugging Face leaderboards, benchmark datasets.
View mission