Papers by Bradley Malin
SAC3: Reliable Hallucination Detection in Black-Box Language Models via Semantic-aware Cross-check Consistency (2023.findings-emnlp)
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| Challenge: | Existing methods for hallucination detection rely on self-consistency check alone . prominent LMs exhibit a tendency to produce exceedingly confident, but erroneous, assertions . |
| Approach: | They propose a sampling-based method that expands on the principle of self-consistency checking to detect hallucinations at question-level and model-level. |
| Outcome: | The proposed method outperforms the state of the art in detecting non-factual and factual statements across multiple question-answering and open-domain generation benchmarks. |
Do You Know What You Are Talking About? Characterizing Query-Knowledge Relevance For Reliable Retrieval Augmented Generation (2024.emnlp-main)
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Zhuohang Li, Jiaxin Zhang, Chao Yan, Kamalika Das, Sricharan Kumar, Murat Kantarcioglu, Bradley Malin
| Challenge: | Language models suffer from poor interpretability and transparency, as well as the intrinsic risk of hallucination and misinformation. |
| Approach: | They propose a statistical framework that assesses how well a query can be answered by an RAG system by capturing the relevance of knowledge. |
| Outcome: | The proposed framework assesses how well a query can be answered by an RAG system by capturing the relevance of knowledge. |
Divide-Conquer-Reasoning for Consistency Evaluation and Automatic Improvement of Large Language Models (2024.emnlp-industry)
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| Challenge: | Existing methods for evaluating the quality and consistency of text generated by Large Language Models are not effective. |
| Approach: | They propose a divide-conquer-reasoning approach to evaluate LLM-generated texts using a split-and-conquers evaluator and an automatic metric converter to facilitate this approach. |
| Outcome: | The proposed framework outperforms state-of-the-art methods by a large margin on multiple benchmarks and reduces 90% of output inconsistencies in one iteration. |