Chen Luo

Sr. Applied Scientist
Amazon Search
Amazon.com

Email: cheluo (at) amazon (dot) com

101 Lytton Ave
Palo Alto, CA 94301

Linkedin
Twitter

Biography

Hey, my name is Chen Luo, a Sr. Applied Scientist at Amazon Search (previously known as A9). I obtained my Ph.D. from Rice, working with Anshumali Shrivastava. Before Rice, I was a master student in Key Laboratory of Symbolic Computation and Knowledge Engineering, Jilin University. I recieved my B.S degree from the Department of Computer Science, Jilin University.

I love traveling, adventuring, having fun. I love music, love saying 'Yes!'. Above all things, I love being kind. I enjoy coding as well as reading research papers. Even though graduated from school, I still wonder if I am a scientist, an engineer or just a student. :-)

Research

I do research for fun and my interests change more frequently than Houston weather. In short, I'm mainly focuses on solving well-known problems with new algorithms that are suitable for use on large amounts of data.

Publications Google Scholar Citation

* Indicate the student that I mentored
  1. Chen Luo, Dimitri Papadimitriou, Hariharan Muralidharan, Dhineshkumar Ramasubbu, Aakash Kolekar, Wenju Xu, Cong Xu, Anirudh Srinivasan, Mukesh Jain, Qi He "Language Model Alignment for Conversational Shopping at Amazon" In: The 48th International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2025), Padua, Italy, July 13–18, 2025

  2. Jingying Zeng, Zhenwei Dai, Hui Liu, Samarth Varshney, Zhiji Liu, Chen Luo, Zhen Li, Qi He, Xianfeng Tang "Examples as the Prompt: A Scalable Approach for Efficient LLM Adaptation in E-Commerce" In: The 48th International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2025), Padua, Italy, July 13–18, 2025

  3. Ran Xu, Hui Liu, Sreyashi Nag, Zhenwei Dai, Yaochen Xie, Xianfeng Tang, Chen Luo, Yang Li, Joyce C. Ho, Carl Yang, Qi He "SimRAG: Self-Improving Retrieval-Augmented Generation for Adapting Large Language Models to Specialized Domains" In: The 2025 Annual Conference of the North American Chapter of the Association for Computational Linguistics (NAACL 2025), Albuquerque, New Mexico, April 29–May 4, 2025

  4. Jinghao Hu, Jinsong Guo, Chen Luo, Yang Hu, Matthias Lanzinger, Zhanshan Li "Enabling Generalized Zero-Shot Vulnerability Classification" In: IEEE Transactions on Dependable and Secure Computing (IEEE TDSC), IEEE, Jan 21, 2025

  5. Yingqian Cui, Pengfei He, Xianfeng Tang, Qi He, Chen Luo, Jiliang Tang, Yue Xing "A Theoretical Understanding of Chain-of-Thought: Coherent Reasoning and Error-Aware Demonstration" In: The 28th International Conference on Artificial Intelligence and Statistics (AISTATS 2025), Phuket, Thailand, May 3–5, 2025

  6. Chen Luo, Xianfeng Tang, Hanqing Lu, Yaochen Xie, Hui Liu, Zhenwei Dai, LImeng Cui, Ashutosh Joshi, Sreyashi Nag, Yang Li, Zhen Li, Rahul Goutam, Jiliang Tang, Haiyang Zhang, and Qi He "Exploring Query Understanding for Amazon Product Search" In: 2024 IEEE International Conference on Big Data . (IEEE BigData'24), Washington, DC, USA, Dec, 2024

  7. Wenxuan Ding, Weiqi Wang, Sze Heng Douglas Kwok, Minghao LIU, Tianqing Fang, Jiaxin Bai, Xin Liu, Changlong Yu, Zheng Li, Chen Luo, Qingyu Yin, Bing Yin, Junxian He, Yangqiu Song "IntentionQA: A Benchmark for Evaluating Purchase Intention Comprehension Abilities of Language Models in E-commerce" In: The 2024 Conference on Empirical Methods in Natural Language Processing. (EMNLP'24), Miami, Florida, USA, Dec, 2024

  8. Baixuan Xu, Weiqi Wang, Haochen Shi, Wenxuan Ding, Huihao JING, Tianqing Fang, Jiaxin Bai, Xin Liu, Changlong Yu, Zheng Li, Chen Luo, Qingyu Yin, Bing Yin, Long Chen, Yangqiu Song "MIND: Multimodal Shopping Intention Distillation from Large Vision-language Models for E-commerce Purchase Understandingicon" In: The 2024 Conference on Empirical Methods in Natural Language Processing. (EMNLP'24), Miami, Florida, USA, Dec, 2024

  9. Fenglin Liu, Zheng Li, Hongjian Zhou, Qingyu Yin, Jingfeng Yang, Xianfeng Tang, Chen Luo, Ming Zeng, Haoming Jiang, Yifan Gao, Priyanka Nigam, Sreyashi Nag, Bing Yin, Yining Hua, Xuan Zhou, Omid Rohanian, Anshul Thakur, Lei Clifton, David A. Clifton "Large Language Models Are Poor Clinical Decision-Makers: A Comprehensive Benchmark" In: The 2024 Conference on Empirical Methods in Natural Language Processing. (EMNLP'24), Miami, Florida, USA, Dec, 2024

  10. Jiaxin Bai, Chen Luo, Zheng Li, Qingyu Yin, Yangqiu Song "Understanding Inter-Session Intentions via Complex Logical Reasoning" In: Proceedings of the 30th ACM SIGKDD Conference on Knowledge Discovery and Data Mining . (KDD'24), Barcelona, Spain, Aug, 2024

  11. Hansi Zeng*, Chen Luo, Hamed Zamani "Planning Ahead in Generative Retrieval: Guiding Autoregressive Generation through Simultaneous Decoding" In: The 47th International ACM SIGIR Conference on Research and Development in Information Retrieval. (SIGIR'24), Washington D.C., USA, July, 2024

  12. Xiusi Chen*, Hongzhi Wen, Sreyashi Nag, Chen Luo, Qingyu Yin, Ruirui Li, Zheng Li, Wei Wang "IterAlign: Iterative Constitutional Alignment of Large Language Models" In: 2024 Annual Conference of the North American Chapter of the Association for Computational Linguistics. (NAACL'24), Mexico City, Mexico, June, 2024

  13. Hansi Zeng*, Chen Luo, Bowen Jin, Sheikh Muhammad Sarwar, Tianxin Wei, Hamed Zamani "Scalable and Effective Generative Information Retrieval" In: Proceedings of the Web Conference, 2024. (WWW'24), Singapore, May, 2024

  14. Tao Yang*, Cuize Han, Chen Luo, Parth Gupta, Jeff Phillips, Qingyao Ai "Mitigating Exploitation Bias in Learning to Rank with an Uncertainty-aware Empirical Bayes Approach" In: Proceedings of the Web Conference, 2024. (WWW'24), Singapore, May, 2024

  15. Zhenwei Dai, Chen Luo, Zhen Li, Xianfeng Tang, Hanqing Lu, Rahul Goutam, Haiyang Zhang "RA-NER: Retrieval augmented NER for knowledge intensive named entity recognition" In: The Twelfth International Conference on Learning Representations. (ICLR'24), Vienna, Austria, May, 2024

  16. Hanqing Lu, Xianfeng Tang, Chen Luo, Limeng Cui, Zhenwei DAI, Rahul Goutam, Haiyang Zhang, Monica Xiao Cheng "Session-aware product filter ranking in e-commerce search" In: The Twelfth International Conference on Learning Representations. (ICLR'24), Vienna, Austria, May, 2024

  17. Wei Jin*, Haitao Mao*, Zheng Li, Haoming Jiang, Chen Luo, Hongzhi Wen, Haoyu Han, Hanqing Lu, Zhengyang Wang, Ruirui Li, Zhen Li, Monica Xiao Cheng, Rahul Goutam, Haiyang Zhang, Karthik Subbian, Suhang Wang, Yizhou Sun, Jiliang Tang, Bing Yin, Xianfeng Tang "Amazon-M2: A Multilingual Multi-locale Shopping Session Dataset for Recommendation and Text Generation" In: 2023 Conference on Neural Information Processing Systems. (NeurIPS'23), New Orleans, LA, Dec, 2023

  18. Jiaxin Bai*, Xin Liu, Weiqi Wang, Chen Luo, Yangqiu Song "Complex Query Answering on Eventuality Knowledge Graph with Implicit Logical Constraints" In: 2023 Conference on Neural Information Processing Systems. (NeurIPS'23), New Orleans, LA, Dec, 2023

  19. Jiaxin Bai*, Chen Luo, Zheng Li, Qingyu Yin, Bing Yin, Yangqiu Song "Knowledge Graph Reasoning over Entities and Numerical Values" In: 29th ACM Sigkdd Conference on Knowledge Discovery and Data Mining. (KDD'23), Long Beach, CA, Aug, 2023

  20. Chen Luo, Rahul Goutam, Haiyang Zhang, Chao Zhang, Yangqiu Song, Bing Yin "Implicit Query Parsing at Amazon Product Search" In: The 46th International ACM SIGIR Conference on Research and Development in Information Retrieval. (SIGIR'23), Taipei, Taiwan, July, 2023

  21. Chen Luo, William Headean, Neela Avudaiappan, Haoming Jiang, Tianyu Cao, Qingyu Yin, Yifan Gao, Zheng Li, Rahul Goutam, Haiyang Zhang, Bing Yin "Query Attribute Recommendation at Amazon Search" In: The ACM Conference on Recommender System, 2022. (RecSys'22), Seatle, US, Sep, 2022

  22. Rui Feng*, Chen Luo, Qingyu Yin, Bing Yin, Tuo Zhao, Chao Zhang "CERES: Pretraining of Graph-Conditioned Transformer for Semi-Structured Session Data" In: Annual Conference of the North American Chapter of the Association for Computational Linguistics, 2022. (NAACL'22), Seatle, US, July, 2022

  23. Tao Yang*, Chen Luo, Hanqing Lu, Parth Gupta, Yin Bing, Qingyao Ai "Can clicks be both labels and features? Unbiased Behavior Feature Collection and Uncertainty-aware Learning to Rank" In: The 45th International ACM SIGIR Conference on Research and Development in Information Retrieval. (SIGIR'22), Madrid, Spain, July, 2022

  24. Chen Luo, Vihan Lakshman, Anshumali Shrivastava, Tianyu Cao, Sreyashi Nag, Rahul Goutam, Hanqing Lu, Yiwei Song and Yin Bing "ROSE: Robust Caches for Amazon Product Search" In: Proc. of 2022 International Conference on World-Wide Web. (WWW'22), Lyon, France, April. 2022.

  25. Nan Jiang*, Chen Luo, Vihan Lakshman, Yesh Dattatreya, Yexiang Xue "Massive Text Normalization via an Efficient Randomized Algorithm" In: Proc. of 2022 International Conference on World-Wide Web. (WWW'22), Lyon, France, April. 2022.

  26. Lei Cai, Zhengzhang Chen, Chen Luo, Jiaping Gui, Jingchao Ni, Ding Li, Haifeng Chen, "Structural Temporal Graph Neural Networks for Anomaly Detection in Dynamic Graphs" In: Proc of 2021 ACM International Conference on Information and Knowledge Management. (CIKM'21), Queensland, Australia, Oct. 2021.

  27. Danqing Zhang, Zheng Li, Tianyu Cao, Chen Luo, Tony Wu, Hanqing Lu, Yiwei Song, Bing Yin, Tuo Zhao, Qiang Yang, "QUEACO: Borrowing Treasures from Weakly-labeled Behavior Data for Query Attribute Value Extraction" In: Proc of 2021 ACM International Conference on Information and Knowledge Management. (CIKM'21), Queensland, Australia, Oct. 2021.

  28. Chen Luo, Anshumali Shrivastava, "Scaling-up Split-Merge MCMC with Locality Sensitive Sampling (LSS)" In: Proc of AAAI Conference on Artificial Intelligence 2019. (AAAI'19), Hawaii, USA, Jan. 2019.

  29. Cheng Cao, Zhengzhang Chen, Lu-An Tang, James Caverlee, Chen Luo, and Zhichun Li, "Behavior-based Community Detection: Application to Host Assessment In Enterprise Information Networks" In: Proc of 2018 ACM International Conference on Information and Knowledge Management (CIKM'18), Turin, Italy, Oct. 2018.

  30. Chen Luo, Anshumali Shrivastava, "Jaccard Affiliation Graph (JAG) Model For Explaining Overlapping Community Behaviors" In: Proc of 2018 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM'18), Barcelona, Spain, Aug. 2018.

  31. Chen Luo, Zhengzhang Chen, Lu-An Tang, Anshumali Shrivastava, Zhichun Li, Haifeng Chen, Jieping Ye, "TINET: Learning Invariant Networks via Knowledge Transfer" In: Proc. of 2018 ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD'18), London, United Kingdom, Aug. 2018.

  32. Chen Luo, Anshumali Shrivastava, "Arrays of (locality-sensitive) Count Estimators (ACE): High-Speed Anomaly Detection on the Edge" In: Proc. of 2018 International Conference on World-Wide Web (WWW'18), Lyon, France, April. 2018.

  33. Chen Luo, J. Jose Gonzalez E., Anshumali Shrivastava, Krishna Palem, Yongshik Moon, Soonhyun Noh, Daedong Park, Seongsoo Hong, "Location Detection for Navigation using IMUS With a Map Through Coarse-Grained Machine Learning" In: Proc. 2017 Design, Automation and Testing in Europe (DATE'17), Swisstech, Lausanne, Switzerland, March. 2017.

  34. Chen Luo and Anshumail Shirivastava, "SSH (Sketch, Shingle, & Hash) for Indexing Massive-Scale Time Series" Proc. of NIPS 2017 Time Series Workshop, Journal of Machine Learning Research V55. (JMLR'17)

  35. Chen Luo, Yongshik Moon, Soonhyun Noh, Daedong Park, Anshumail Shirivastava, Seongsoo Hong, and Krishna Palem, "CaPSuLe: Camera Based Positioning System Using Learning" In: Proc. of international IEEE System-on-Chip Conference (SoCC'16), Seattle, WA, USA September. 2016.
    Featured on The NY Times, The ACM Technews, The Futurity

  36. Chen Luo, Wei Pang, Zhe Wang, and Chenghua Lin "Hete-CF: Social-Based Collaborative Filtering Recommendation using Heterogeneous Relations" In: Proc. 2014 IEEE International Conference on Data Mining (ICDM'14), Shen Zheng, China, December. 2014.

  37. Chen Luo, Jian-Guang Lou, Qingwei Lin, Qiang Fu, Rui Ding, Dongmei Zhang, and Zhe Wang "Correlating Events with Time Series for Incident Diagnosis" In: Proc. 2014 ACM SIGKDD Int. Conf. on Knowledge Discovery and Data Mining (KDD'14), New York, NY, Aug. 2014.

  38. Chen Luo, Renchu Guan, Zhe Wang, and Chenghua Lin " HetPathMine: A Novel Transductive Classification Algorithm on Heterogeneous Information Networks" In: Proc. of the 36th European Conference on Information Retrieval. (ECIR'14), Amsterdam, Metherlands. April, 2014

  39. Chen Luo, Wei Pang, and Zhe Wang, "Semi-supervised clustering on Heterogeneous Information Networks" In: Proc. of the 18th Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD'14), Tainan, Taiwan, May, 2014

Service

Program Committee: AAAI, UAI, CIKM, WSDM, WWW
Reviewer: ICML, NeurIPS, KDD, CIKM, AAAI, UAI


*Last updated on 2024