cv
Ph.D. candidate at FIU working on information-theoretic privacy, explainable graph ML, and agentic AI systems — with a decade of industrial control-engineering background before the Ph.D.
General Information
| Full Name | Hojat Allah Salehi |
| hsalehi@fiu.edu | |
| Website | hojatsalehi.com |
| Location | Miami, FL |
Education
-
Aug 2023 – 2026
Ph.D., Computer Science
Florida International University
- Reviewer: NeurIPS, ICML, ICLR, ITW, ISIT, T-IFS
- Thesis: A Stochastic Approach to Privacy-Preserving Distributed Parameter Estimation
-
Sep 2010 – Sep 2012
M.Sc., Control Engineering
Sharif University of Technology
- Thesis: A Fuzzy Probabilistic Belief Framework for Uncertainty Propagation in Dynamical System Reliability
-
Sep 2006 – Sep 2010
B.Sc., Control Engineering
Tabriz University
- Thesis: Quantitative Application of Non-Cooperative Game Theory Models for Stock Market Prediction
Experience
-
Aug 2023 – present
Graduate Research Assistant
Florida International University
-
Maximally Negatively Correlated Quantizers in Distributed Learning (CorBin-FL)
- Introduced correlated distributed quantization for federated learning, improving accuracy over prior methods.
- Validated on CIFAR10, FEMNIST, Shakespeare, and Sent140 (CNN, ResNet18, LSTM, Transformer) on multiple A100s, achieving high communication efficiency by transmitting one bit per model weight.
-
Explanation-Preserving Augmentation for Semi-Supervised Graph Representation Learning
- Developed a semantics-preserving graph augmentation technique leveraging GNN explainers, with theoretical analysis of its gains over prior methods.
- Validated on MUTAG, Benzene, and PROTEINS, achieving up to 7.83% improvement in classification accuracy.
-
Discrete Denoising Diffusion Model (DiGress) and Application in Graph Explainability
- Applied Discrete Denoising Diffusion (DiGress) to ProxyExplainer to improve GNN explainer accuracy.
- Conditioned the diffusion model on explainer subgraphs to enable in-distribution graph generation, preserving explainable structure while reconstructing the rest.
-
Denoising Diffusion Implicit Model (DDIM) for Time Series Prediction
- Developed a conditional DDIM with an attention-based UNet for time-series analysis and generation.
- Encoded volume and price movements as multi-channel RGB conditioning to capture temporal dependencies.
-
Agentic-SysID: Autonomous Multi-Agent System Identification
- Built a multi-agent pipeline (Intake, Modeler, Estimator, Validation) converting a natural-language plant description into a control-ready model with uncertainty bounds and a validity region, under a constrained budget.
- Designed a physics-first fidelity ladder escalating from white-box to grey-box or black-box surrogate only on validation evidence, routed through a guarded, budget-enforced Plant API; demonstrated on a pendulum-with-friction plant that breaks the white-box model.
-
Multi-Agent Sports Game Analysis (LangGraph)
- Built a LangGraph-orchestrated multi-agent pipeline for NBA/MLB game analysis with parallel adversarial debates (win-probability, total-points), each converged by a judge and cross-validated by a head analyst.
- Closed the loop with a post-game accuracy review that writes semantically-retrieved lessons to a ChromaDB memory store per agent role, across a mixed OpenAI/Anthropic LLM routing layer with SQLite persistence.
-
Maximally Negatively Correlated Quantizers in Distributed Learning (CorBin-FL)
-
Jun 2022 – Jul 2023
Research and Development Manager
Tunnel Sadd Ariana
- AI-driven stock market prediction: web data extraction, feature selection, preprocessing (FFT, LOWESS), and LSTM-based stock-market prediction.
-
Sep 2019 – Jun 2022
Senior Electrical Engineer
Tunnel Sadd Ariana
- Managed the implementation of industrial automation: PLC programming and SCADA design for irrigation-system water-flow control and monitoring.
- Supervised electrical and industrial-automation section of two comprehensive World Bank projects.
-
Sep 2013 – Mar 2019
Research Fellow
K.N. Toosi University
- Researched gradient-based optimization methods: applied a second-order gradient-based technique to solve optimal control problems in hybrid dynamical systems.
- Developed advanced control strategies for bipedal and monopod robots: extended the hybrid minimum principle (HMP) to control a monopod robot for maximum jumping height.
Projects
-
May 2024 – Dec 2024
eBay ML Challenge: NLP-Driven Auto Part Classification
- NLP for information extraction: combined Named Entity Recognition and inference-based methods to pair vehicle components from free-text descriptions.
- Data preprocessing: cleaned and filtered text, applied spaCy-based importance summarization, and built augmented, auto-labeled training sets.
- Two-stage BERT fine-tuning: one model extracts initial labels directly; a second infers missing fields from context, improving accuracy and recall.
-
Jan 2023 – Sep 2023
Detection of DDoS Attacks using SVM and Logistic Regression
- Built an SVM/Logistic-Regression DDoS classifier on the CIC-DDoS2019 dataset (SMOTE-balanced) and on self-generated traffic captured via hping3/Wireshark.
- Achieved high accuracy and low false-positive rates across both datasets, showing real-world applicability.
-
Mar 2019 – Sep 2019
A Genetic Algorithm and Tabu Search Method for Supply Chain Problems
- Developed a Genetic Algorithm and Tabu Search for capacity-constrained location-routing, overcoming exact-method computational limits for large-scale Mixed Integer Programming (MIP) in supply-chain problems; presented at the 2nd International Congress on Engineering Technology and Innovation.
Skills
-
Analytical & Technical
- Machine Learning
- Differential Privacy / Federated Learning
- Graph Neural Networks
- Graph Representation Learning
- Explainable AI (XAI)
- Diffusion Models (DDPM/DDIM)
- Agentic AI / Multi-Agent Systems
- LangGraph
- Vector Databases (ChromaDB)
- Natural Language Processing
- Optimization
- Time Series Analysis
- Data Science
- Industrial Automation
- SCADA
-
Programming — Expert
- Python
- PyTorch
- Scikit-learn
- Keras
- TensorFlow
- Pandas
- NumPy
-
Programming — Proficient
- SQL
- C/C++
- Git
- MySQL
- PowerBI
- TIA Portal
- SIMULINK
- Hping3