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MS

Stanford University

Computer Science (GPA: 4.0/4.0)

BE

Tsinghua University

Industrial Engineering (CS GPA: 3.8/4.0)

Applied Scientist

Microsoft

Working in Bing Ads Team.

• Large language models
• Multi-modality
• Visual-linguistic
• Research

Data & Applied Scientist Intern

Microsoft

Worked in Bing Ads Team on multi-modality model pruning. Extended Transformer models' structured pruning methods into CLIP (Contrastive Language-Image Pre-training) for the first time. Reduced the model size significantly (-40%) with a slight accuracy drop (-1%).

• Multi-modality
• Model pruning
• Transformers
• 40% model size reduction

Machine Learning Engineer

ByteDance

Worked on natural language processing (NLP) at Language and Information Technology Group (LITG), AI Lab, supervised by Dr. Hang Li. Constructed a fake news detection pipeline from scratch, and built bot-written articles detection models.

• Natural language processing
• Fake news detection
• Bot-written articles detection
• AI Lab

ColBERT-Serve: Efficient Multi-stage Memory-Mapped Scoring

Advances in Information Retrieval: 47th European Conference on Information Retrieval, ECIR 2025

We study serving retrieval models, particularly late interaction retrievers like ColBERT, to many concurrent users at once and under a small budget, in which the index may not fit in memory. We present ColBERT-serve, a serving system that applies a memory-mapping strategy to the ColBERT index, reducing RAM usage by 90% and permitting its deployment on cheap servers, and incorporates a multi-stage architecture with hybrid scoring, reducing ColBERT's query latency and supporting many concurrent queries in parallel.

Overview of the Ninth Dialog System Technology Challenge: DSTC9

IEEE/ACM Transactions on Audio, Speech, and Language Processing

Overview paper for the Ninth Dialog System Technology Challenge (DSTC9), covering multi-domain task-oriented dialogue systems and cross-lingual dialogue state tracking.

Multi-domain Task-oriented Dialog Challenge II at DSTC9

AAAI-2021 Dialog System Technology Challenge 9 Workshop

The paper provides an overview of the 'Multi-Domain Task Completion Dialog Challenge II' track at the 9th Dialog System Technology Challenge (DSTC9). Two tasks are introduced in this track: end-to-end multi-domain task completion and cross-lingual dialog state tracking.

A Large-Scale Chinese Short-Text Conversation Dataset

Natural Language Processing and Chinese Computing (NLPCC)

We present a large-scale cleaned Chinese conversation dataset LCCC, which contains a base version (6.8 million dialogues) and a large version (12.0 million dialogues). The quality of our dataset is ensured by a rigorous data cleaning pipeline, which is built based on a set of rules and a classifier that is trained on manually annotated 110K dialogue pairs.

KdConv: A Chinese Multi-domain Dialogue Dataset Towards Multi-turn Knowledge-driven Conversation

Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics (ACL)

We propose a Chinese multi-domain knowledge-driven conversation dataset, KdConv, which grounds the topics in multi-turn conversations to knowledge graphs. Our corpus contains 4.5K conversations from three domains (film, music, and travel), and 86K utterances with an average turn number of 19.0.

CrossWOZ: A Large-Scale Chinese Cross-Domain Task-Oriented Dialogue Dataset

Transactions of the Association for Computational Linguistics (TACL)

To advance multi-domain (cross-domain) dialogue modeling as well as alleviate the shortage of Chinese task-oriented datasets, we propose CrossWOZ, the first large-scale Chinese Cross-Domain Wizard-of-Oz task-oriented dataset. It contains 6K dialogue sessions and 102K utterances for 5 domains, including hotel, restaurant, attraction, metro, and taxi.

NLPCC Best Student Paper

Natural Language Processing and Chinese Computing (NLPCC)

NLPCC is a leading international conference specialized in the fields of Natural Language Processing (NLP) and Chinese Computing (CC).

Stanford UGVR Scholar

Stanford University, Tsinghua University

Up to 18 students from China are admitted per year

1st Prize in National Olympiad in Informatics in Provinces

National Olympiad in Informatics