Bridging NL2SQL for CAN Signal Analytics at NIO: From Externalized Schemas to CTE Pipelines
Summary: NIO-Weaver enables NL2SQL over CAN warehouses by externalizing DBC-defined, bit-packed signals into a domain graph and hybrid retrieval for ambiguous terms. Hierarchical, self-correcting generation produces executable multi-CTE temporal-analysis pipelines, improving baselines by up to 67.2%. (summarized by gpt-5.6-luna on Aug 28 2026)
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Authors
- 1. Wei Zhou (Shanghai Jiao Tong University)
- 2. Haoyu Zhao (Shanghai Jiao Tong University)
- 3. Ruiguang Zhong (NIO)
- 4. Shaoli Yu (Shanghai Jiao Tong University)
- 5. Xuanhe Zhou (Shanghai Jiao Tong University)
- 6. Xue Yang (Shanghai Jiao Tong University)
- 7. Xiaosong Jia (Fudan University)
- 8. Guoliang Li (Tsinghua University)
- 9. Shengzhong Liu (Shanghai Jiao Tong University)
- 10. Kang Zhang (China Telecom Corporation Limited)
- 11. Jie Wu (NIO)
- 12. Fan Wu (Shanghai Jiao Tong University)
BibTeX Citation
@article{zhou_vldb26,
title = {{Bridging NL2SQL for CAN Signal Analytics at NIO: From Externalized Schemas to CTE Pipelines}},
author = {Zhou, Wei and Zhao, Haoyu and Zhong, Ruiguang and Yu, Shaoli and Zhou, Xuanhe and Yang, Xue and Jia, Xiaosong and Li, Guoliang and Liu, Shengzhong and Zhang, Kang and Wu, Jie and Wu, Fan},
journal = {PVLDB},
series = {{VLDB} '26},
volume = {19},
number = {12},
pages = {4330--4343},
doi = {10.14778/3827998.3828036},
url = {https://doi.org/10.14778/3827998.3828036},
year = {2026}
}Incoming Citations (Sorted by Pagerank)
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| Rank | Citing Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 10,962 | Dial: A Knowledge-Grounded Dialect-Specific NL2SQL System | 2026 | VLDB | 4.9605343e-05 |
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