Hi, I'm Jiacheng Pang.

I build multimodal and multi-agent LLM systems with applications in affective computing and social intelligence.

I am currently a CS(AI) Master's student at USC Viterbi (graduating in December 2025). I am also working as a research assistant at the Intelligent Human Perception Lab, USC ICT with Prof. Mohammad soleymani and Ashutosh Chaubey, where I focus on building and evaluating multimodal LLMs for paralinguistic understanding.

I am also working at the Melady Lab at USC Viterbi with Prof. Yan Liu and Wei Yang on multi-agent collaboration and reinforcement learning.

Portrait of Jiacheng Pang
Areas of Interests:
Multimodality
Multi-agent
LLM Evaluation & Alignment

Education

  • University of Southern California
    M.S. Computer Science (Artificial Intelligence), GPA: 3.91/4.00, (Jan. 2024 - Dec. 2025)
  • Northeastern University
    B.S. Computer Science, GPA: 3.74/4.00, (Sep. 2018 - May 2022)
    Honors: Dean's List of all semesters, magna cum laude

Selected Projects

Adversarial Paralinguistic Benchmark

28k+ examples with mismatched text-audio cues to diagnose transcript over-reliance in speech-LLMs (work in progress).

Fusion Based Speech Emotion Captioning

Encoder-decoder captioning model with audio-textual fusion, enhancing match rate by 20% with X-Norm vs early/late fusion.

Benchmark Leakage Detection

Detection through exposing model overfitting to mislabeled or low-confidence examples, identified with majority voting among model judges.

More details on CV...

Publications

  1. VoxParadox: Speech LLMs Hear the Words, Not the Voice
    Jiacheng Pang, Ashutosh Chaubey, Mohammad Soleymani
    Submitting to ICML 2026
  2. A Survey of Reasoning and Agentic Systems in Time Series with Large Language Models.
    Ching Chang, Yidan Shi, Defu Cao, Wei Yang, Jeehyun Hwang, Haixin Wang, Jiacheng Pang, Wei Wang, Yan Liu, Wen-Chih Peng, Tien-Fu Chen

More under double-blind review at ICLR.

Experience

Graduate Researcher
June 2025 - Present · Los Angeles, USA
USC Viterbi - Melady Lab
Graduate Researcher
June 2025 - Present · Los Angeles, USA
Software Engineer
Sept. 2022 - Nov. 2023 · Yinchuan, China
Data Science Researcher Intern
Jan. 2021 - July 2021 · Beijing, China

© Jiacheng Pang · Built with a simple static template :)