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cs.LG2026

Online Test-Time Adaptation for Generalizable Dynamic Graph Anomaly Detection

Jialun Zheng, Hanchen Yang, Jiannong Cao +3

Generalizable dynamic graph anomaly detection (DGAD) enables pretrained detectors to identify anomalies in unseen target domains without costly retraining. However, existing method…

cs.LG2026

Resolving Action Bottleneck: Agentic Reinforcement Learning Informed by Token-Level Energy

Langzhou He, Junyou Zhu, Yue Zhou +7

Agentic reinforcement learning trains large language models using multi-turn trajectories that interleave long reasoning traces with short environment-facing actions. Common policy…

cs.LG2026

Decoupled and Divergence-Conditioned Prompt for Multi-domain Dynamic Graph Foundation Models

Haonan Yuan, Qingyun Sun, Junhua Shi +3

Dynamic graphs are ubiquitous in real-world systems, and building generalizable dynamic Graph Foundation Models has become a frontier in graph learning. However, dynamic graphs fro…

cs.LG2026

Filter-then-Weight: Online Data Selection and Reweighting for LLM Fine-Tuning

Fangxin Wang, Peyman Baghershahi, Langzhou He +3

Gradient-based data selection offers a principled framework for estimating sample utility in large language model (LLM) fine-tuning, but existing methods are mostly designed for of…

cs.LG2026

FOREVER: Forgetting Curve-Inspired Memory Replay for Language Model Continual Learning

Yujie Feng, Hao Wang, Jian Li +6

Continual learning (CL) for large language models (LLMs) aims to enable sequential knowledge acquisition without catastrophic forgetting. Memory replay methods are widely used for…

cs.LG2025

DP-DGAD: A Generalist Dynamic Graph Anomaly Detector with Dynamic Prototypes

Jialun Zheng, Jie Liu, Jiannong Cao +4

Dynamic graph anomaly detection (DGAD) is essential for identifying anomalies in evolving graphs across domains such as finance, traffic, and social networks. Recently, generalist…

cs.LG2025

Recurrent Knowledge Identification and Fusion for Language Model Continual Learning

Yujie Feng, Xujia Wang, Zexin Lu +7

Continual learning (CL) is crucial for deploying large language models (LLMs) in dynamic real-world environments without costly retraining. While recent model ensemble and model me…