---
title: "Unleashing the Native Recommendation Potential: LLM-Based"
description: "The authors, from Kuaishou, propose GRLM, built on Term IDs (TIDs): short, standardized keyword sequences drawn from the… 39 references."
authors: ["Zhiyang Zhang", "Junda She", "Kuo Cai", "Bo Chen", "Shiyao Wang", "Xinchen Luo", "Qiang Luo", "Ruiming Tang", "Han Li", "Kun Gai", "Guorui Zhou"]
year: 2026
venue: "Findings of the Association for Computational Linguistics: ACL 2026"
source: "https://aclanthology.org/2026.findings-acl.984/"
doi: "10.18653/v1/2026.findings-acl.984"
licence: "CC BY 4.0 (ACL Anthology)"
licence_url: "https://creativecommons.org/licenses/by/4.0/"
summary_licence: "Elamur Cosmic License"
canonical: "https://research.elamur.ai/free/en/papers/zhang-2026-unleashing-native-recommendation-potential-llm/"
---
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# Unleashing the Native Recommendation Potential: LLM-Based Generative Recommendation via Structured Term Identifiers

**Authors:** Zhiyang Zhang, Junda She, Kuo Cai, [Bo Chen](https://md.research.elamur.ai/free/en/authors/bo-chen/), [Shiyao Wang](https://md.research.elamur.ai/free/en/authors/shiyao-wang/), Xinchen Luo, Qiang Luo, [Ruiming Tang](https://md.research.elamur.ai/free/en/authors/ruiming-tang/), [Han Li](https://md.research.elamur.ai/free/en/authors/han-li/), [Kun Gai](https://md.research.elamur.ai/free/en/authors/kun-gai/) and [Guorui Zhou](https://md.research.elamur.ai/free/en/authors/guorui-zhou/) · **Year:** 2026 · **Venue:** [Findings of the Association for Computational Linguistics: ACL 2026](https://md.research.elamur.ai/free/en/venues/findings/) ([Findings of the Association for Computational Linguistics 2026](https://md.research.elamur.ai/free/en/venues/findings/2026/)) · **Publisher:** [Association for Computational Linguistics](https://md.research.elamur.ai/free/en/publishers/association-for-computational-linguistics/) · **Licence:** [CC BY 4.0 (ACL Anthology)](https://creativecommons.org/licenses/by/4.0/)

**Links:** [Publisher's page](https://aclanthology.org/2026.findings-acl.984/) · [PDF](https://aclanthology.org/2026.findings-acl.984.pdf) · [DOI 10.18653/v1/2026.findings-acl.984](https://doi.org/10.18653/v1/2026.findings-acl.984) · [OpenAlex](https://openalex.org/W7166835449)

**Citations:** 0 citations (OpenAlex, 2026-10-14)

## Summary
LLM-based generative recommenders must name items in a form the model can produce and that maps back to real catalog entries. Free-text identifiers such as titles often lead to hallucinated, non-existent items. Semantic IDs are numeric codes outside the LLM's vocabulary, so they require vocabulary expansion and alignment training, and they transfer poorly across domains. The authors, from Kuaishou, propose GRLM, built on Term IDs (TIDs): short, standardized keyword sequences drawn from the model's native vocabulary.

GRLM has three components:
- **Context-aware Term Generation** shows an LLM the metadata of embedding-retrieved neighbor items. This keeps shared attributes consistent while still capturing what makes each item distinct.
- **Integrative Instruction Fine-tuning** jointly trains item-to-TID mapping and sequential recommendation.
- **Elastic Identifier Grounding** maps generated TIDs to items, first by exact match and then by a structural fallback.

On real-world in-domain and cross-domain benchmarks, GRLM beats the baselines, scales with backbone size and almost never hallucinates. This suggests native-vocabulary identifiers are a practical alternative to Semantic IDs.

## Key points
- Term generation uses Qwen3-4B-2507, and the fine-tuned backbones are Qwen3 models from 0.6B to 14B. Recall rises steadily with model size, consistent with scaling-law behavior.
- In the hallucination analysis, both Valid Rate@10 and Direct Hit Rate@10 exceed 0.99 on all reported datasets: Beauty, Sports, Toys, Leisure and Technology.
- In cross-domain experiments, GRLM outperforms HSTU, LLM4CDSR, GenCDR and TriCDR, with relative gains reaching about 113% on some metrics.
- Ablations show that removing either Context-aware Term Generation or the Generative Term Internalization task lowers Recall and NDCG on every in-domain dataset.
- The authors note two limitations: retrieval relies on a fixed external embedding model, and validation was done only on Qwen3. Code is available at github.com/ZY0025/GRLM.

*Our summary of the paper, in our own words — not its text. The work belongs to its authors; read it at the links above.*

## Institutions

- [Kuaishou](https://md.research.elamur.ai/free/en/companies/kuaishou/) — Company, Beijing, China · 19 works · 95 citations

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## Cite

Cite as: Zhiyang Zhang, Junda She, Kuo Cai, Bo Chen, Shiyao Wang, Xinchen Luo, Qiang Luo, Ruiming Tang, Han Li, Kun Gai and Guorui Zhou. 2026. Unleashing the Native Recommendation Potential: LLM-Based Generative Recommendation via Structured Term Identifiers. Findings of the Association for Computational Linguistics: ACL 2026.

The paper itself, not this page. BibTeX from the library's record of the work.

```bibtex
@inproceedings{zhang2026unleashing,
  title = {{Unleashing the Native Recommendation Potential: LLM-Based Generative Recommendation via Structured Term Identifiers}},
  author = {Zhiyang Zhang, Junda She, Kuo Cai, Bo Chen, Shiyao Wang, Xinchen Luo, Qiang Luo, Ruiming Tang, Han Li, Kun Gai and Guorui Zhou},
  booktitle = {Findings of the Association for Computational Linguistics: ACL 2026},
  year = {2026},
  doi = {10.18653/v1/2026.findings-acl.984},
  url = {https://doi.org/10.18653/v1/2026.findings-acl.984}
}
```

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*Updated 2 November 2026*