Haoran Niu

A Graph Neural Network Surrogate Model for Incident-Based Travel Time Prediction Under Limited Sensor Data

Abhilasha Saroj, Natalie Myers, Haoran Niu

Localized roadway incidents can produce congestion well beyond their point of origin, but evaluating these effects with microscopic simulation requires a separate run for each scenario. This paper presents a Spatio-Temporal Graph Convolutional Network (STGCN) for forecasting route-level travel times on a …

A Graph Neural Network Surrogate Model for Incident-Based Travel Time Prediction Under Limited Sensor Data

Abhilasha Saroj, Natalie Myers, Haoran Niu

Localized roadway incidents can produce congestion well beyond their point of origin, but evaluating these effects with microscopic simulation requires a separate run for each scenario. This paper presents a Spatio-Temporal Graph Convolutional Network (STGCN) for forecasting route-level travel times on a …

us (code pays fourni par la source)

Urbanization, geographic accessibility, and delayed entry into tuberculosis-designated care in southwestern China: a machine-learning prediction study

Haoran Niu, Yingbei Xiong, Tianqin Xue, Y Yao et autres

cn (code pays fourni par la source)

Sources of adolescent mental disorder self-stigma and the effect of mental health on its formation: a moderated mediation model

Xi Wang, Haoran Niu, H G Chen, Xin Ding et autres

Background Adolescent mental disorders affect 14% of youth globally, yet treatment rates remain low (38%), particularly in low-resource settings. While stigma is a recognized barrier to care, limited evidence exists on how multi-level stigma (public, peer, family) transforms into self-stigmatization during adolescence—a …

cn, Ghana (code pays fourni par la source)

Does Payment Variation Across Insurance Types for Diagnosis-Intervention Packet Exacerbate Health Disparities?

Haoran Niu, Kunhe Lin, Yingbei Xiong, Tianqin Xue et autres

cn (code pays fourni par la source)

Emerging anomaly detection techniques for electronic health records: A survey

Soumendra N. Bhanja, Haoran Niu, Yang Chen, Olufemi A. Omitaomu et autres

Anomaly detection in electronic health records (EHRs) is a cornerstone of biomedical informatics, with direct implications for patient safety, clinical decision-making, and the prevention of healthcare fraud. Once guided primarily by simple rule-based methods, the field has advanced rapidly, driven by increased …

us, au (code pays fourni par la source)

Impact of Payment Standard Differentials on Healthcare Equity Under Payment Method Reform: A Continuous Difference-in-Difference Study on Tuberculosis in China

Tianqin Xue, Haoran Niu, Mengyuan Zhao, Yifan Yao et autres

Evaluating Extreme Storm Events in an Ensemble of High‐Resolution Projections

Deeksha Rastogi, Haoran Niu, Shih‐Chieh Kao, Moetasim Ashfaq

Abstract This study uses different downscaling techniques and reference observations to investigate the characteristics of extreme storm events over the conterminous United States in historical and a projected future scenario. While previous studies agree on the projected changes in intensity and frequency …

us (code pays fourni par la source)

Self-Supervised T-GCN for Detection of Disturbance and Propagation in Power Grid

Haoran Niu, Moumita Samanta, Olufemi A. Omitaomu

Urban power systems increasingly rely on dense sensing to monitor grid reliability, yet disturbance labels are scarce and events are rare. We present a self-supervised spatio-temporal method that detects, localizes, and characterizes grid frequency disturbances across urban areas using only unlabeled data. …

us (code pays fourni par la source)

Urban-AI 2024 Workshop Report: The 2nd ACM SIGSPATIAL International Workshop on Advances in Urban-AI (Urban-AI 2024)

Olufemi A. Omitaomu, Ali Mostafavi, Sukanya Randhawa, Haoran Niu

Urban AI is an interdisciplinary field that integrates artificial intelligence, spatial computing, and urban science to tackle the multifaceted challenges of urbanization. The proliferation of urban data and the rapid digitization of city infrastructures have created unprecedented opportunities for leveraging data-driven machine …

us, de, gb (code pays fourni par la source)

Hazard Detection Detector Cards

Haoran Niu, Kelly M. T. Huffer, Olufemi A. Omitaomu

This report was prepared as an account of work sponsored by an

us (code pays fourni par la source)

Challenges of integrating HIV prevention and treatment in China's border mountain regions: a grounded theory study

Sixian Du, Haoran Niu, Feng Jiang, Liwen Gong et autres

BACKGROUND: HIV remains a critical global public health challenge, with 39 million people living with HIV as of 2022 and over 40.4 million lives lost to the epidemic. In China, the burden is similarly significant, with over 1.33 million HIV cases reported …

cn (code pays fourni par la source)