dorsal/arxiv
View SchemaCIRAG: Construction-Integration Retrieval and Adaptive Generation for Multi-hop Question Answering
| Authors | Zili Wei, Xiaocui Yang, Yilin Wang, Zihan Wang, Weidong Bao, Shi Feng, Daling Wang, Yifei Zhang |
|---|---|
| Categories | |
| ArXiv ID | 2601.06799vv1 |
| URL | https://arxiv.org/abs/2601.06799 |
| License | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
Abstract
Triple-based Iterative Retrieval-Augmented Generation (iRAG) mitigates document-level noise for multi-hop question answering. However, existing methods still face limitations: (i) greedy single-path expansion, which propagates early errors and fails to capture parallel evidence from different reasoning branches, and (ii) granularity-demand mismatch, where a single evidence representation struggles to balance noise control with contextual sufficiency. In this paper, we propose the Construction-Integration Retrieval and Adaptive Generation model, CIRAG. It introduces an Iterative Construction-Integration module that constructs candidate triples and history-conditionally integrates them to distill core triples and generate the next-hop query. This module mitigates the greedy trap by preserving multiple plausible evidence chains. Besides, we propose an Adaptive Cascaded Multi-Granularity Generation module that progressively expands contextual evidence based on the problem requirements, from triples to supporting sentences and full passages. Moreover, we introduce Trajectory Distillation, which distills the teacher model's integration policy into a lightweight student, enabling efficient and reliable long-horizon reasoning. Extensive experiments demonstrate that CIRAG achieves superior performance compared to existing iRAG methods.
{
"annotation_id": "540a26aa-f62b-409b-81e7-e27838274fdf",
"date_created": "2026-02-17T05:53:08.625000Z",
"date_modified": "2026-02-17T05:53:08.625000Z",
"file_hash": "a93f100ca5b9c85d4d68f48285cf837c4abac226867e75f12985dbf411e133f3",
"private": false,
"record": {
"abstract": "Triple-based Iterative Retrieval-Augmented Generation (iRAG) mitigates document-level noise for multi-hop question answering. However, existing methods still face limitations: (i) greedy single-path expansion, which propagates early errors and fails to capture parallel evidence from different reasoning branches, and (ii) granularity-demand mismatch, where a single evidence representation struggles to balance noise control with contextual sufficiency. In this paper, we propose the Construction-Integration Retrieval and Adaptive Generation model, CIRAG. It introduces an Iterative Construction-Integration module that constructs candidate triples and history-conditionally integrates them to distill core triples and generate the next-hop query. This module mitigates the greedy trap by preserving multiple plausible evidence chains. Besides, we propose an Adaptive Cascaded Multi-Granularity Generation module that progressively expands contextual evidence based on the problem requirements, from triples to supporting sentences and full passages. Moreover, we introduce Trajectory Distillation, which distills the teacher model\u0027s integration policy into a lightweight student, enabling efficient and reliable long-horizon reasoning. Extensive experiments demonstrate that CIRAG achieves superior performance compared to existing iRAG methods.",
"arxiv_id": "2601.06799",
"authors": [
"Zili Wei",
"Xiaocui Yang",
"Yilin Wang",
"Zihan Wang",
"Weidong Bao",
"Shi Feng",
"Daling Wang",
"Yifei Zhang"
],
"categories": [
"cs.CL",
"cs.AI"
],
"license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
"title": "CIRAG: Construction-Integration Retrieval and Adaptive Generation for Multi-hop Question Answering",
"url": "https://arxiv.org/abs/2601.06799",
"version": "v1"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "a6cf40e3-7790-4a3b-bced-327034a79082",
"id": "arXiv Dataset",
"type": "Model",
"variant": "snapshot-2026-01-17",
"version": "0.1.0"
},
"user_id": 1000002
}