A reproducible ML study of Codeforces difficulty prediction, cold-start limits, temporal validation, and statement-structure features.
Temporal partitioning and backtesting for time-correlated datasets
Binary classifier with Venn-ABERS calibration, temporal validation, hyper-parameter optimisation, and fraud detection out of the box
Production-aware credit-card fraud detection. Temporal splits, cost-sensitive thresholds, calibrated probabilities, Optuna tuning, and a Streamlit dashboard.
Public-safe, runnable reconstruction of breast cancer risk-model external validation, calibration, local adaptation, and temporal validation.
CogniGuard-ML: A Leakage-Resistant Explainable Automated Machine Learning Framework for Early Cognitive Function Decline Risk Prediction Using Population Health Data
R Shiny dashboard demonstrating validation-first analytics for clinical trial duration forecasting. Random split R2 = 0.84 vs time-based R2 = 0.04—why validation strategy matters more than model selection.
Applied NLP decision-support project for CFPB complaint routing, comparing TF-IDF + Linear SVM with DistilBERT through leakage-safe evaluation, selective routing, Human Review, and 2025 retrospective analysis.
A reproducible quantitative research laboratory for macro-financial regime discovery, forward stress modeling, temporal validation and interactive 3D market-state analysis.
Python CLI for leakage-resistant temporal validation, cohort-shift diagnostics, and drift reporting for tabular classifiers.
Production-style PySpark lakehouse for transaction risk modeling, fraud detection, and temporal model validation.
Evaluation-aware insurance fraud and claim-risk ML pipeline with temporal validation, leakage auditing, imbalance handling, threshold tuning, business-loss analysis, and Streamlit scoring.
Reproducible workflow for prospective prediction of labor instability from NLSY97 employment trajectories using leakage-safe longitudinal features and person-independent temporal validation.
Reproducible temporal-validation pipeline for suicidal-ideation prediction in employed U.S. adults across 2015-2023 NSDUH data.
제조 AI 모델링 전에 표본 독립성·누수·시간 강건성과 업무지표를 검증하는 재현 가능한 데이터 감사 연구
Deterministic streaming detector for card-testing and velocity abuse on card authorization traffic. Rust core + bit-exact Python reference, temporal-split evaluation, false-positive cost in rupees. Precision 0.0824 at a realistic base rate; declines 1 in 71 legitimate customers. Not deployable as-is.
Python CLI that detects entity leakage, reversed-role leakage, and temporal overclaiming in influenza antigenicity evaluations.
Stage358: Signing-Time Validity Enforcement Layer with key lifecycle temporal verification, Stage357 receipt binding, validity-window checks, revocation-time checks, and fail-closed temporal decisions.
Beyond Popularity: Consumer Journeys and Contextual Recommendations — SQL, temporal evaluation and interpretable recommendations using OTTO behavioral events.
A reproducible electoral data science model for the 2026 U.S. midterms, combining temporal validation, House and Senate forecasts, Monte Carlo simulation, and an interactive dashboard.
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