Multi-Level Explanations for Generative Language Models
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Abstract (arXiv)
Despite the increasing use of large language models (LLMs) for context-grounded tasks like summarization and question-answering, understanding what makes an LLM produce a certain response is challenging. We propose Multi-Level Explanations for Generative Language Models (MExGen), a technique to provide explanations for context-grounded text generation. MExGen assigns scores to parts of the context to quantify their influence on the model's output. It extends attribution methods like LIME and SHAP to LLMs used in context-grounded tasks where (1) inference cost is high, (2) input text is long, and (3) the output is text. We conduct a systematic evaluation, both automated and human, of perturbation-based attribution methods for summarization and question answering. The results show that our framework can provide more faithful explanations of generated output than available alternatives, including LLM self-explanations. We open-source code for MExGen as part of the ICX360 toolkit: https://github.com/IBM/ICX360.
Key facts. Cited by 11 papers in the map (data through 7 Oct 2026). Builds on 41 of its 64 references that are in the map. First posted on arXiv 21 Mar 2024.
Builds on
41 of 64 references.
References · 41
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29 more
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Built on by
Citing papers per year: 2024: 2; 2025: 6; 2026: 3.
11 papers.
- 2025SPEX: Scaling Feature Interaction Explanations for LLMscited by 12
- 2025Explaining the Reasoning of Large Language Models Using Attribution Graphscited by 3
- 2024Selective Explanationscited by 2
- 2025Revitalizing Black-Box Interpretability: Actionable Interpretability for LLMs via Proxy Modelscited by 2
- 2025Context Attribution with Multi-Armed Bandit Optimizationcited by 2
- 2025Hide or Highlight: Understanding the Impact of Factuality Expression on User Trustcited by 1
- 2024CELL your Model: Contrastive Explanations for Large Language Modelscited by 0
- 2025Attribution assignment for deep-generative sequence models enables interpretability analysis using positive-only datacited by 0
- 2026LIME-LLM: Probing Models with Fluent Counterfactuals, Not Broken Textcited by 0
- 2026Re-Ranking Through an Attribution Lens for Citation Quality in Legal QAcited by 0
- 2026Topological Attribution Distance (TAD): Revealing Segment-Level RAG Influence on LLM Output Geometry for Incident Log Analysiscited by 0
- 2026Topological Attribution Distance (TAD): Revealing Segment-Level RAG Influence on LLM Output Geometry for Incident Log Analysis17 Aug 2026
- 2026Re-Ranking Through an Attribution Lens for Citation Quality in Legal QA2 Jun 2026
- 2026LIME-LLM: Probing Models with Fluent Counterfactuals, Not Broken Text16 Jan 2026
- 2025Explaining the Reasoning of Large Language Models Using Attribution Graphs17 Dec 2025
- 2025Hide or Highlight: Understanding the Impact of Factuality Expression on User Trust9 Aug 2025
- 2025Attribution assignment for deep-generative sequence models enables interpretability analysis using positive-only data29 Jun 2025
- 2025Context Attribution with Multi-Armed Bandit Optimization24 Jun 2025
- 2025Revitalizing Black-Box Interpretability: Actionable Interpretability for LLMs via Proxy Models18 May 2025
- 2025SPEX: Scaling Feature Interaction Explanations for LLMs19 Feb 2025
- 2024CELL your Model: Contrastive Explanations for Large Language Models17 Jun 2024
- 2024Selective Explanations29 May 2024