Master's Student  ·  USC  ·  Los Angeles

Mehrshad
Saadatinia

ML researcher and engineer specialising in mechanistic interpretability, multimodal AI, and deep learning for healthcare. Building systems that are not just capable — but understandable.

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About

Mehrshad Saadatinia
USC · Los Angeles

I am a machine learning researcher and engineer completing an M.S. in Computer Science at the University of Southern California, with a background in Computer Engineering from Shahid Beheshti University.

My work spans deep learning theory, bioinformatics, and medical AI, with a focus on multiview and multimodal learning, generative and probabilistic models, and graph neural networks — leading to peer-reviewed publications in Nature Communications (2025) and IEEE Access (2024).

More recently I have concentrated on large language models, particularly alignment, safety, and mechanistic interpretability. My ongoing work explores circuit-level understanding and behavioral steering of LLMs, including multi-layer steering methods inspired by transformer circuit discovery.

In parallel, I build end-to-end ML systems across multimodal RAG, LLM evaluation, and deep research agent pipelines. I am particularly interested in bridging theory and real-world systems — taking insights from representation learning and interpretability into practical, scalable AI.

Education

University of Southern California MS Computer Science  ·  Jan 2024 – Dec 2025
Shahid Beheshti University BSc Computer Engineering  ·  Sep 2018 – Feb 2023

Technologies

Python PyTorch TensorFlow LangChain C/C++ Docker Google Cloud MongoDB Vector DBs Scikit-Learn REST APIs Linux
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Research & Publications

CircuitSteer
Under Submission · COLM 2026

CircuitSteer: Circuit Discovery-Based Steering via Sparse Autoencoder Feature Flow

M. Saadatinia, A. Abbasi, A. Aryashad, P. Razmara

Available upon request
Nature Communications
Nature Communications · 2025

Multi-organ metabolome biological age & cardiometabolic risk

F. Anagnostakis, S. Ko, M. Saadatinia, J. Wang, C. Davatzikos, J. Wen

EvoGLAD
Under Submission

EvoGLAD: Evolving Graph-Level Representations for Anomaly Detection in Metagenomic Communities

M. Saadatinia, W. Neiswanger

Available upon request
Video Sentiment
arXiv Preprint · 2025

Enhancing Multi-Modal Video Sentiment Classification Through Semi-Supervised Clustering

M. Saadatinia, M. Ahmadi, A. Abdollahi

Schizophrenia
IEEE Access · 2024

Explainable Deep Learning-Based for Schizophrenia Diagnosis via Generative Data Augmentation

M. Saadatinia, A. Salimi-Badr

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Experience

Jan 2025 – Present
Research Intern
Dr. Neiswanger's Lab · USC

Graph representations for metagenomic communities (METAGENE-1). Developing EvoGLAD, a framework for graph-level anomaly detection in microbial ecology using evolutionary graph neural networks.

May 2024 – Present
Research Intern
LABS · Columbia University & USC

Disease subtype discovery via weakly supervised deep clustering. Collaborating on multi-organ metabolomics research published in Nature Communications, applying multiview learning to large-scale biobank data.

Apr 2024 – Dec 2025
AI Engineer
USC CARC

Developing a novel LLM-based approach for deep academic research. Building end-to-end pipelines combining multimodal RAG, LLM evaluation and benchmarking, and agentic workflows for scientific discovery.