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Main Authors: Li, Cheng-Yen, Chen, Xuanjun, Lin, Claire, Chen, Wei-Yu, Nie, Wenhua, Lee, Hung-Yi, Jang, Jyh-Shing Roger
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2604.10426
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author Li, Cheng-Yen
Chen, Xuanjun
Lin, Claire
Chen, Wei-Yu
Nie, Wenhua
Lee, Hung-Yi
Jang, Jyh-Shing Roger
author_facet Li, Cheng-Yen
Chen, Xuanjun
Lin, Claire
Chen, Wei-Yu
Nie, Wenhua
Lee, Hung-Yi
Jang, Jyh-Shing Roger
contents Large Language Models (LLMs) struggle with knowledge-intensive tasks due to hallucinations and fragmented reasoning over dispersed information. While Retrieval-Augmented Generation (RAG) grounds generation in external sources, existing methods often treat evidence as isolated units, failing to reconstruct the logical chains that connect these dots. Inspired by Complementary Learning Systems (CLS), we propose CodaRAG, a framework that evolves retrieval from passive lookup into active associative discovery. CodaRAG operates via a three-stage pipeline: (1) Knowledge Consolidation to unify fragmented extractions into a stable memory substrate; (2) Associative Navigation to traverse the graph via multi-dimensional pathways-semantic, contextualized, and functional-explicitly recovering dispersed evidence chains; and (3) Interference Elimination to prune hyper-associative noise, ensuring a coherent, high-precision reasoning context. On GraphRAG-Bench, CodaRAG achieves absolute gains of 7-10% in retrieval recall and 3-11% in generation accuracy. These results demonstrate CodaRAG's superior ability to systematically robustify associative evidence retrieval for factual, reasoning, and creative tasks.
format Preprint
id arxiv_https___arxiv_org_abs_2604_10426
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle CodaRAG: Connecting the Dots with Associativity Inspired by Complementary Learning
Li, Cheng-Yen
Chen, Xuanjun
Lin, Claire
Chen, Wei-Yu
Nie, Wenhua
Lee, Hung-Yi
Jang, Jyh-Shing Roger
Computation and Language
Artificial Intelligence
Large Language Models (LLMs) struggle with knowledge-intensive tasks due to hallucinations and fragmented reasoning over dispersed information. While Retrieval-Augmented Generation (RAG) grounds generation in external sources, existing methods often treat evidence as isolated units, failing to reconstruct the logical chains that connect these dots. Inspired by Complementary Learning Systems (CLS), we propose CodaRAG, a framework that evolves retrieval from passive lookup into active associative discovery. CodaRAG operates via a three-stage pipeline: (1) Knowledge Consolidation to unify fragmented extractions into a stable memory substrate; (2) Associative Navigation to traverse the graph via multi-dimensional pathways-semantic, contextualized, and functional-explicitly recovering dispersed evidence chains; and (3) Interference Elimination to prune hyper-associative noise, ensuring a coherent, high-precision reasoning context. On GraphRAG-Bench, CodaRAG achieves absolute gains of 7-10% in retrieval recall and 3-11% in generation accuracy. These results demonstrate CodaRAG's superior ability to systematically robustify associative evidence retrieval for factual, reasoning, and creative tasks.
title CodaRAG: Connecting the Dots with Associativity Inspired by Complementary Learning
topic Computation and Language
Artificial Intelligence
url https://arxiv.org/abs/2604.10426