CV

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Education

University of Southern California, Los Angeles, CA, USA
PhD in Computer Science · Aug 2026 – Present

University of Science and Technology of China, Hefei, China
Master of Engineering in Computer Science and Technology · Sep 2023 – Jun 2026
Advisor: Prof. Pan Peng
GPA: 3.84/4.30 · Rank: 44/148

Bachelor of Engineering in Computer Science and Technology · Sep 2019 – Jun 2023
GPA: 3.70/4.30 · Rank: 40/170

Publications

Conference papers

• VehicleMemBench: An Executable Benchmark for Multi-User Long-Term Memory in In-Vehicle Agents. COLM 2026.
  Yuhao Chen, Yi Xu, Xinyun Ding, Xiang Fang, Shuochen Liu, Luxi Lin, Qingyu Zhang, Ya Li, Quan Liu, Tong Xu.
  Designed a multi-user memory benchmark using an executable vehicle simulation and state-based evaluation. Overview

• Sublinear Algorithms for Estimating Single-Linkage Clustering Costs. ESA 2026.
  Pan Peng, Christian Sohler, Yi Xu (alphabetical order).
  Developed sublinear-time algorithms for estimating hierarchical clustering costs; primarily responsible for key theorem proofs and experimental validation. Overview · Paper

• Joint Optimization of Handoff and Video Rate in LEO Satellite Networks. IEEE INFOCOM 2026.
  Kyoungjun Park, Zhiyuan He, Cheng Luo, Yi Xu, Lili Qiu, et al.
  Worked on reinforcement learning models for adaptive bitrate and satellite selection. Overview · Paper

Manuscripts

• Exact Direct Sum Theorems for Shallow Circuits. Submitted to ITCS 2027.
  Xinyu Mao, Yi Xu, Guangxu Yang (alphabetical order).
  Co-developed proofs of exact direct-sum theorems for depth-3 AC⁰ and depth-4 NC⁰ circuits. Overview

• Replica Server Placement in a Satellite Network.
  Zhiyuan He, Yi Xu, Cheng Luo, Lili Qiu, Yuqing Yang.
  Applied greedy and local search algorithms for facility location to optimize satellite CDN deployment. Overview · Paper

Internship experience

iFLYTEK — Algorithm Research Intern
COG Team, Core R&D Platform · Hefei, China · Dec 2025 – Jul 2026

• Designed a multi-user benchmark for evaluating long-term memory and decision-making in vehicle agents.
• Contributed to an LLM-based pipeline that generated instruction–response pairs and filtered them with programmatic validators, supporting instruction-following training for iFLYTEK Spark.

Microsoft Research Asia — Research Intern
Wireless Group · Shanghai, China · Aug 2022 – Mar 2023

• Investigated satellite network algorithms for adaptive bitrate selection and replica server placement.
• Implemented signal processing on USRP and analyzed wireless sensing data in Python.

Selected projects

ASC22-23 International Supercomputing Competition — Team Leader
Jan 2022 – May 2023

• Led a team to optimize applications including numerical simulations and LLMs.
• Developed data preprocessing pipelines for the Fortran-based WRF weather forecasting model and used Intel VTune to analyze and optimize runtime performance.
• Awarded second place out of 300 teams worldwide.

VSCode–Azure DevOps Integration Extension — Team Leader
Microsoft Research Asia · Sep 2022 – Dec 2022

• Led development of a VSCode extension for Azure DevOps pull request workflows.
• Coordinated secure login, comment management, and profile-image integration; implemented pull request creation, display, and completion.

ISC21 International Supercomputing Competition — Participant
Oct 2020 – Jun 2021

• Optimized compilation flags and parallelization for WRF.
• Tuned HPL and HPCG benchmarks.
• Ranked first on WRF and sixth overall among 13 finalist teams.

Talks

• Sublinear Algorithms for Estimating Single-Linkage Clustering Costs
  Women in Theory 2025 Rump Session at UC-Berkeley, Jun 2025. Slides.
  Student Theory Day 2025 at USTC, Mar 2025. Slides.
• Experiences from an Award-Winning Team in the ASC Supercomputing Competition ASC24 Supercomputing Competition Startup at Beijing, Jan 2024. Slides.

Teaching

Teaching Assistant, University of Science and Technology of China:

• Algorithms for Big Data. Spring 2025. Syllabus.
• Design and Analysis of Algorithms. Fall 2024. Syllabus.

Awards and scholarships

• First-Class Academic Scholarship, USTC (2023, 2024).
• Silver Prize, ASC22-23 International Supercomputing Competition (2023).
• Outstanding Graduate, USTC, Undergraduate (2023).
• Star of Tomorrow, Microsoft Research Asia (2022).
• Silver Award, Outstanding Student Scholarship, USTC (2019, 2020).

Skills

Programming: Python, C++, JavaScript, Shell, Verilog
Tools and platforms: Linux, STM32, USRP, Intel VTune