Xiaojie Sun (孙晓洁)

Here is my Chinese CV.

Institute of Computing Technology, Chinese Academy of Sciences
- Master of Science in Computer Science, 2021 - 2024
- Advisor: Prof. Jiafeng Guo
- Beijing, China
Nankai University
- Bachelor of Engineering in Software Engineering, 2017 - 2021, GPA: Top 3%
- Tianjin, China

Ant Group, Beijing, 2022.08 - 2023.08
- Intern in Search Group, Retrieval at E-commerce Project.
- Multi-Aspect Dense Retrieval: Dense Retrieval Model on Structure Data with Aspect Information.
ByteDance Inc, Beijing, 2022.02 - 2022.07
- Intern in TikTok Commerce Group, Recommendation Algorithm Project.
- Inverted index: Built seller2video and author2video indexes and optimized video retrieval.
- Self-supervised learning: Explored contrastive learning for video retrieval, achieving positive online gains.
Baidu Inc, Beijing, 2021.04 - 2021.07
- Intern in Baidu Security Group, NLP Algorithm Project.
- Fraud group detection: Detected fraudulent groups by building graphs based on shared IPs.

WSDM Cup 2023 (3rd/215 teams)
- Debiased pre-training and ranking. Won 3rd place in two tasks. Invited to publish papers and give talks.
Passage Retrieval 2022 (6th/916 teams)
- Ranking on the world’s first high-quality Chinese information retrieval dataset: DuReader retrieval.

National Scholarship, 2023
Third Prize on the 16th ACM International Conference on Web Search and Data Mining, 2023
Outstanding Undergraduate Award from Nankai University, 2021
National Scholarship (B.E.), 2020
Honorable Mention on Mathematical Contest In Modeling Certificate of Achievement, 2019