Feifei Li

SLIMSTORE: A Cloud-based Deduplication System for Multi-version Backups

2021

Cloud backup is becoming the preferred way for users to support disaster recovery. In addition to its convenience, users are deeply concerned about reducing storage costs in the face of large-scale backup data. Data deduplication …

A Comparative Study of in-Database Inference Approaches

2022 · 2022 IEEE 38th International Conference on Data Engineering (ICDE)

In Alibaba's IoT platform, we face the challenge of processing analytical queries involving both structured and unstructured data. Normally, collaborative queries need deep learning (DL) models and relational algebras to work intertwined to produce sophisticated …

SmartSight: Mitigating Hallucination in Video-LLMs Without Compromising Video Understanding via Temporal Attention Collapse

2026 · Proceedings of the AAAI Conference on Artificial Intelligence

Despite Video Large Language Models (Video-LLMs) having rapidly advanced in recent years, perceptual hallucinations pose a substantial safety risk, which severely restricts their real-world applicability. While several methods for hallucination mitigation have been proposed, they …