Ali Vaezi

Sequential decisions under partial observability for returned parts: when to pay for an additional observation of a latent condition before committing to a remanufacturing pathway (reuse, recycle, conventional, additive manufacturing). The stopping rule acts on a posterior belief rather than a point estimate, with Bayesian inference in NumPyro. Supervisors: Prof. Mehrdad Mohammadi (TU/e), Prof. Lorenzo Bottaccioli (PoliTO).

Cross-domain benchmark applying three explainable-AI methods to diagnose why vision-language models (LLaVA variants, LLaVA-Med, Qwen-VL, BLIP-2) hallucinate across medical (PathVQA, VQA-RAD, HALT-MedVQA) and industrial (MVTec AD, MMAD) inputs. Introduces AGTR (Attention-Guided Token Rescoring), a training-free mitigation algorithm yielding POPE F1 Δ = +0.081.

Nested-Logit Stochastic User Equilibrium model for multimodal transportation in Tehran, jointly capturing perception variability (stochastic equilibrium), hierarchical substitution among correlated modes (nested logit), and income-based heterogeneity in value of time under strategic interaction. MATLAB simulation with reproducibility scripts.

Context-aware MCDM framework that operationalizes how early-stage startups should select their North Star Metric given business-model archetype (SaaS/Subscription, Marketplace/Transactional, B2B/Enterprise). Best-Worst Method weights eight validated criteria; TOPSIS ranks candidate metrics per archetype, showing NSM selection is not context-neutral.

Production algorithmic trading system with an RL agent layer (Stable-Baselines3 + Gymnasium), XGBoost signal models, and a full-stack serving pipeline: FastAPI + WebSockets backend, ClickHouse time-series storage, APScheduler jobs, and a React dashboard. Containerized with Docker.

Windows-native IIS log analytics that turns raw W3C logs into plain-English security and performance verdicts in seconds. Isolation Forest plus IIS-specific rules flag brute-force, scanners, and DDoS bursts, with prescriptive next-step actions. FastAPI backend, Pydantic schemas, TDD-first pytest suite, and CSV/PDF export.

First open-source Python implementation of Fritz Zwicky's General Morphological Analysis (GMA). Defines a morphological field, applies a Cross-Consistency Assessment, and reduces the solution space to internally consistent scenario archetypes, bringing a method previously locked in proprietary software into the open-source ecosystem.

Body-recomposition web app: 6-day Push/Pull/Legs training tracker with progressive-overload charts and deload management, a calorie/macro nutrition logger, a standalone BMR/TDEE calculator (Mifflin-St Jeor), and a progress dashboard with ETA-to-goal. Next.js 16 App Router, TypeScript, Supabase Postgres + auth, deployed on Vercel.

Two-phase framework combining Fuzzy BWM + Fuzzy TOPSIS with a custom PPO agent for supplier order allocation under stochastic demand, lead-time uncertainty, and systemic disruptions. Gymnasium-based supply chain simulator with three market scenarios (stable, volatile, disrupted). Benchmarked against a deterministic base-stock heuristic and a vanilla PPO ablation across 54 controlled runs.

Trained locomotion policies (REINFORCE, Actor-Critic, PPO) that hold up under shifted dynamics, using domain randomization and curriculum learning (ES-CDR) on a custom MuJoCo Hopper with randomized friction, mass, and joint properties. Benchmarked 6 physics parameters across 3 RL algorithms.

Multi-task fusion network for 7-class weld defect classification fusing sensor (1D-CNN), audio (1D-CNN + MFCC), and video (MobileNetV3-Small) branches. 15-step pipeline with focal loss, temperature scaling, and confidence-gated reclassification. F1 = 0.957. Includes Streamlit monitoring dashboard.

Mobility-as-a-Service super-app using DQN with a Habits-Utility-Rationality behavioral model for personalized multimodal route recommendations. A second RL agent selects behavioral nudges to encourage green transport. React 18 + Three.js frontend, FastAPI + PyTorch backend, Docker deployment.

Analysis of 2.5M+ shared e-scooter trips in Turin (LIME, VOI, BIRD). STL decomposition, Kaplan-Meier survival analysis, Moran's I spatial autocorrelation, and Monte Carlo simulation (10,000 iterations). Dataset published on Kaggle with DOI.

6 Python microservices for precision agriculture: soil moisture sensing, weather API integration, weather-aware automation scheduling, and real-time Telegram monitoring. Deployed on Raspberry Pi with MQTT protocol and REST APIs.

Open-source System Dynamics Simulation Library on PyPI. Implements causal loop diagrams, stock-flow modelling, and time-series simulation with a clean Python API and full documentation.

6-class text classification pipeline distinguishing human-written text from five AI models (DeepSeek, Grok, Claude, Gemini, ChatGPT) under severe 19:1 class imbalance. 8-phase reproducible pipeline combining 46 stylometric features, DeBERTa-v3-base fine-tuned with Focal Loss, and a stacking ensemble. Achieved OOF CV F1 = 0.9591 and public leaderboard F1 = 0.9217.

Multi-indicator urban heat risk mapping across NYC boroughs (2013–2023). Fuzzy AHP weights multi-criteria indicators; QGIS Graphical Modeler automates geospatial processing; Landsat 8 Level-2 imagery provides Land Surface Temperature and NDVI. Dataset permanently archived on Zenodo.