mlsanityData to 7 Oct 2026

R3-REC: Reasoning-Driven Recommendation via Retrieval-Augmented LLMs over Multi-Granular Interest Signals

arXiv 2603.13730 ↗First posted 14 Mar 2026cs.IR cs.AIcited by 1

On the map: LLM reasoning → LLM reasoning for recommendation

also in 1 more
Abstract (arXiv)

This paper addresses two persistent challenges in sequential recommendation: (i) evidence insufficiency-cold-start sparsity together with noisy, length-varying item texts; and (ii) opaque modeling of dynamic, multi-faceted intents across long/short horizons. We propose R3-REC (Reasoning-Retrieval-Recommendation), a prompt-centric, retrieval-augmented framework that unifies Multi-level User Intent Reasoning, Item Semantic Extraction, Long-Short Interest Polarity Mining, Similar User Collaborative Enhancement, and Reasoning-based Interest Matching and Scoring. Across ML-1M, Games, and Bundle, R3-REC consistently surpasses strong neural and LLM baselines, yielding improvements up to +10.2% (HR@1) and +6.4% (HR@5) with manageable end-to-end latency. Ablations corroborate complementary gains of all modules.

Key facts. Cited by 1 paper in the map (data through 7 Oct 2026). Placed in LLM reasoning for recommendation, one of 17 directions in LLM reasoning. Builds on 20 of its 28 references that are in the map. First posted on arXiv 14 Mar 2026.

Builds on

20 of 28 references.

Closest ancestors · 1

Same direction, newest first

  1. 2025Reason4Rec: Deliberative User Preference Alignment of Large Language Models for Recommendation4 Feb

Other references · 19

  1. 2018Self-Attentive Sequential Recommendationcited by 1,169
  2. 2019BERT4Rec: Sequential Recommendation with Bidirectional Encoder Representations from Transformercited by 952
  3. 2015Session-based Recommendations with Recurrent Neural Networkscited by 685
  4. 2018Session-based Recommendation with Graph Neural Networkscited by 312
  5. 2017Neural Attentive Session-based Recommendationcited by 237
  6. 2023RecMind: Large Language Model Powered Agent For Recommendationcited by 129
  7. 2019Multi-Interest Network with Dynamic Routing for Recommendation at Tmallcited by 113
  8. 2020Controllable Multi-Interest Framework for Recommendationcited by 92
  9. 2021Global Context Enhanced Graph Neural Networks for Session-based Recommendationcited by 81
  10. 2018Sequence-Aware Recommender Systemscited by 58
  11. 2023Zero-Shot Next-Item Recommendation using Large Pretrained Language Modelscited by 53
  12. 2022Efficiently Leveraging Multi-level User Intent for Session-based Recommendation via Atten-Mixer Networkcited by 38
7 more
  1. 2025Chat-Driven Text Generation and Interaction for Person Retrievalcited by 34
  2. 2023Large Language Models for Intent-Driven Session Recommendationscited by 30
  3. 2025Multi-Modal Multi-Behavior Sequential Recommendation with Conditional Diffusion-Based Feature Denoisingcited by 13
  4. 2024UniRec: A Dual Enhancement of Uniformity and Frequency in Sequential Recommendationscited by 4
  5. 2025Diffusion-based Multi-modal Synergy Interest Network for Click-through Rate Predictioncited by 4
  6. 2024RaSeRec: Retrieval-Augmented Sequential Recommendationcited by 3
  7. 2025Coherency Improved Explainable Recommendation via Large Language Modelcited by 3

Built on by

Cited by year (2026 to 7 Oct)

Citing papers per year: 2026: 1.

1 paper.

  1. 2026Anatomy of a Decision: Uncertainty-aware Hierarchical Intent Learning via Flow Matching for Multimodal Recommendationcited by 0

Similar, not cited

Close in wording, no citation either way

  1. 2026P3Rec: Distilling Prior--Posterior Preference Reasoning for LLM-based Recommendation
  2. 2025MR.Rec: Synergizing Memory and Reasoning for Personalized Recommendation Assistant with LLMs
  3. 2026RecRec: Latent Interests Recursive Reasoning for Sequential Recommendation ↗
  4. 2025Reason-to-Recommend: Using Interaction-of-Thought Reasoning to Enhance LLM Recommendation
  5. 2026RRCM: Ranking-Driven Retrieval over Collaborative and Meta Memories for LLM Recommendation
  6. 2026Reinforced Preference Optimization for Reasoning-Augmented Recommendations
  7. 2025LARES: Latent Reasoning for Sequential Recommendation
  8. 2025Intent-Guided Reasoning for Sequential Recommendation ↗