Challenge: Existing studies have focused on identifying where factual knowledge is encoded in the network, but little is known about how it is extracted from the model parameters during inference.
Approach: They examine how factual associations are stored and retrieved internally in LMs . they use attention edges to identify critical points where information propagates to the prediction .
Outcome: The proposed model aggregates information about subject and relation to predict the correct attribute . the model “queries” the enriched subject to extract the attribute based on the proposed model .

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Challenge: Prior work has identified MLP modules in early layers as key contributors to factual recall.
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Tracing and Dissecting How LLMs Recall Factual Knowledge for Real World Questions (2025.acl-long)

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Challenge: Recent advances in large language models have shown promising ability to perform commonsense reasoning.
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How Pre-trained Language Models Capture Factual Knowledge? A Causal-Inspired Analysis (2022.findings-acl)

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Challenge: Recent studies show that pre-trained language models can fill in the missing factual words in cloze-style prompts such as ”Dante was born in [MASK]” .
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Characterizing Mechanisms for Factual Recall in Language Models (2023.emnlp-main)

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Challenge: Language Models often integrate facts they memorized with new information that appears in a given context, causing competition within the model.
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Challenge: Existing methods for analyzing memorization use definitions that are based on model performance, which changes between models and often also between training runs.
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How Do Multilingual Language Models Remember Facts? (2025.findings-acl)

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Challenge: Prior research has focused on English monolingual models, but how these mechanisms generalize to non-English languages remains unexplored.
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Challenge: Language models (LMs) can make a correct prediction based on many possible signals in a prompt, but not all corresponding to recall of factual associations.
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Challenge: Feature attribution analyses of the trained probes reveal correlations between probe accuracy and relation specificity, entity connectedness, and how distributed the signal on which the probe relies is across attention heads.
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Unveiling Factual Recall Behaviors of Large Language Models through Knowledge Neurons (2024.emnlp-main)

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Challenge: Recent advances in Large Language Models have underscored their exceptional reasoning prowess with natural language understanding across a broad spectrum of tasks.
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