activity
20232026
most citedImputeFormer: Low Rankness-Induced Transformers for Generalizable Spatiotemporal Imputation

94 citations · 177 across the 16 of their papers we have counts for

collaborators

16 papers

cs.RO2026

World Models as Adversaries: Multi-Agent Self-Play Fine-Tuning for Robust Motion Planning

Tong Nie, Yuewen Mei, Junlin He +3

Robust motion planning in dense traffic requires autonomous vehicles to interact in rare and safety-critical scenarios that are underrepresented in naturalistic driving data. Altho…

cs.RO2026

From Attacks to Curricula: Learnability-Guided Adversarial Training for Safe Autonomous Driving

Yuewen Mei, Tong Nie, Jie Sun +3

Closed-loop adversarial training improves autonomous driving safety by exposing policies to rare safety-critical scenarios. Standard pipelines first generate adversarial scenarios…

cs.AI2026

EvoDrive: Pareto Evolution for Safety-Critical Autonomous Driving via Self-Improving LLM Agents

Tong Nie, Yuewen Mei, Yihong Tang +4

Generating safety-critical scenarios is essential for validating and improving autonomous driving systems, yet it inherently requires maximizing adversariality to expose failures w…

cs.CL2026

Reasoning-preserved Efficient Distillation of Large Language Models via Activation-aware Initialization

Junlin He, Yihong Tang, Tong Nie +5

Efficient Distillation (EDistill) compresses large language models (LLMs) by structured pruning parameters and tuning lightweight modules with high training efficiency. Although th…

cs.LG2026

ADV-0: Closed-Loop Min-Max Adversarial Training for Long-Tail Robustness in Autonomous Driving

Tong Nie, Yihong Tang, Junlin He +5

Deploying autonomous driving systems requires robustness against long-tail scenarios that are rare but safety-critical. While adversarial training offers a promising solution, exis…

cs.AI2025

Steerable Adversarial Scenario Generation through Test-Time Preference Alignment

Tong Nie, Yuewen Mei, Yihong Tang +5

Adversarial scenario generation is a cost-effective approach for safety assessment of autonomous driving systems. However, existing methods are often constrained to a single, fixed…

cs.LG2025★ 2 cited

Predicting Large-scale Urban Network Dynamics with Energy-informed Graph Neural Diffusion

Tong Nie, Jian Sun, Wei Ma

Networked urban systems facilitate the flow of people, resources, and services, and are essential for economic and social interactions. These systems often involve complex processe…

cs.AI2025★ 42 cited

Exploring the Roles of Large Language Models in Reshaping Transportation Systems: A Survey, Framework, and Roadmap

Tong Nie, Jian Sun, Wei Ma

Modern transportation systems face pressing challenges due to increasing demand, dynamic environments, and heterogeneous information integration. The rapid evolution of Large Langu…

cs.LG2025

Collaborative Imputation of Urban Time Series through Cross-city Meta-learning

Tong Nie, Wei Ma, Jian Sun +2

Urban time series, such as mobility flows, energy consumption, and pollution records, encapsulate complex urban dynamics and structures. However, data collection in each city is im…

cs.LG2024★ 18 cited

Joint Estimation and Prediction of City-wide Delivery Demand: A Large Language Model Empowered Graph-based Learning Approach

Tong Nie, Junlin He, Yuewen Mei +4

The proliferation of e-commerce and urbanization has significantly intensified delivery operations in urban areas, boosting the volume and complexity of delivery demand. Data-drive…

cs.AI2024★ 3 cited

Geolocation Representation from Large Language Models are Generic Enhancers for Spatio-Temporal Learning

Junlin He, Tong Nie, Wei Ma

In the geospatial domain, universal representation models are significantly less prevalent than their extensive use in natural language processing and computer vision. This discrep…

cs.LG2024★ 8 cited

Channel-Aware Low-Rank Adaptation in Time Series Forecasting

Tong Nie, Yuewen Mei, Guoyang Qin +2

The balance between model capacity and generalization has been a key focus of recent discussions in long-term time series forecasting. Two representative channel strategies are clo…

cs.LG2024

Generalizable Implicit Neural Representation As a Universal Spatiotemporal Traffic Data Learner

Tong Nie, Guoyang Qin, Wei Ma +1

. Spatiotemporal Traffic Data (STTD) meas…

cs.LG2024★ 9 cited

Spatiotemporal Implicit Neural Representation as a Generalized Traffic Data Learner

Tong Nie, Guoyang Qin, Wei Ma +1

Spatiotemporal Traffic Data (STTD) measures the complex dynamical behaviors of the multiscale transportation system. Existing methods aim to reconstruct STTD using low-dimensional…

cs.LG2023★ 94 cited

ImputeFormer: Low Rankness-Induced Transformers for Generalizable Spatiotemporal Imputation

Tong Nie, Guoyang Qin, Wei Ma +2

Missing data is a pervasive issue in both scientific and engineering tasks, especially for the modeling of spatiotemporal data. This problem attracts many studies to contribute to…

cs.LG2023★ 1 cited

Contextualizing MLP-Mixers Spatiotemporally for Urban Data Forecast at Scale

Tong Nie, Guoyang Qin, Lijun Sun +3

Spatiotemporal traffic data (STTD) displays complex correlational structures. Extensive advanced techniques have been designed to capture these structures for effective forecasting…