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Measuring Hallucinations in RAG Systems

Blog post from Vectara

Post Details
Company
Date Published
Author
Shane Connelly
Word Count
1,183
Company Posts That Month
8
Language
English
Hacker News Points
-
Post removed?
No
Summary

Vectara has released an open-source Hallucination Evaluation Model (HEM) that provides a FICO-like score for grading how often generative LLMs hallucinate in Retrieval Augmented Generation (RAG) systems. The model helps mitigate the risks of hallucinations, such as large errors or introducing biases due to training data, by evaluating the trustworthiness of RAG systems and identifying which LLMs are best suited for specific use cases. The HEM provides a scorecard that compares various models, including GPT4, GPT3.5, and others, on their hallucination rates, accuracy, and summary length, allowing users to make informed decisions about their generative AI adoption.

Trends Found in this Post
Trend Post Mentions Total Month Mentions Posts Companies MoM
LLM 12 2,630 342 112 -8%
RAG 11 1,091 153 52 +46%
AI Model Fine-tuning 1 582 110 49 +9%
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