Author

Ziwu Liu

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Preprint Aug 2026

FedRings: A Scalable and Topology-Aware Federated Learning Framework for LEO Satellite Constellations

FedRings, a decentralized framework that organizes satellites into ring-based communication structures, enables stable and efficient learning in dynamic LEO networks while reducing communication cost, and experiments show it consistently outperforms existing methods in realistic settings.

Ziwu Liu, I. Gouveia, R. Yasmin et al. · 0 citations

Preprint Aug 2026

KVDiagnosis: A Diagnostic Benchmark for KV-Cache Compression in Long-Context Language Models

This work presents KVDiagnosis, a diagnostic dataset and benchmark with three contributions, a 25-method taxonomy that groups methods into five mechanism families and links them to eight verified implementations and their valid diagnostic measurements, and a common record format.

Chen Qiu, Ziwu Liu, Chao Fei et al. · 0 citations