Junfeng Zhao

Providing Proactive Fault Tolerance as a Service for Cloud Applications

2016

Lack of flexible and cost-effective fault tolerance mechanism is one of major obstacles for enhancing availability and efficiency of cloud application systems. We propose a novel fault tolerance as a service scheme, where cloud applications …

RNN enhanced Compartmental Model for Infectious Disease Prediction

2024

COVID-19 has caused a pandemic on a global scale and brought about harm to politics, economy, and other fields. It is of great significance to build an epidemic analysis model for better understanding pandemic transmission …

KnowPO: Knowledge-Aware Preference Optimization for Controllable Knowledge Selection in Retrieval-Augmented Language Models

2025 · Proceedings of the AAAI Conference on Artificial Intelligence

By integrating external knowledge, Retrieval-Augmented Generation (RAG) has become an effective strategy for mitigating the hallucination problems that large language models (LLMs) encounter when dealing with knowledge-intensive tasks. However, in the process of integrating external …