1 code implementation • 28 Mar 2024 • Sishuo Chen, Lei LI, Shuhuai Ren, Rundong Gao, Yuanxin Liu, Xiaohan Bi, Xu sun, Lu Hou
Video paragraph captioning (VPC) involves generating detailed narratives for long videos, utilizing supportive modalities such as speech and event boundaries.
1 code implementation • 17 Feb 2024 • Wenkai Yang, Xiaohan Bi, Yankai Lin, Sishuo Chen, Jie zhou, Xu sun
We first formulate a general framework of agent backdoor attacks, then we present a thorough analysis on the different forms of agent backdoor attacks.
1 code implementation • 21 May 2023 • Yi Liu, Xiaohan Bi, Lei LI, Sishuo Chen, Wenkai Yang, Xu sun
However, as pre-trained language models (PLMs) continue to increase in size, the communication cost for transmitting parameters during synchronization has become a training speed bottleneck.
2 code implementations • 30 Jan 2023 • Sishuo Chen, Wenkai Yang, Xiaohan Bi, Xu sun
We find that: (1) no existing method behaves well in both settings; (2) fine-tuning PLMs on in-distribution data benefits detecting semantic shifts but severely deteriorates detecting non-semantic shifts, which can be attributed to the distortion of task-agnostic features.
Out-of-Distribution Detection Out of Distribution (OOD) Detection
1 code implementation • 14 Oct 2022 • Sishuo Chen, Wenkai Yang, Zhiyuan Zhang, Xiaohan Bi, Xu sun
In this work, we take the first step to investigate the unconcealment of textual poisoned samples at the intermediate-feature level and propose a feature-based efficient online defense method.
1 code implementation • 14 Oct 2022 • Sishuo Chen, Xiaohan Bi, Rundong Gao, Xu sun
On the basis of the observations that token averaging and layer combination contribute to improving OOD detection, we propose a simple embedding approach named Avg-Avg, which averages all token representations from each intermediate layer as the sentence embedding and significantly surpasses the state-of-the-art on a comprehensive suite of benchmarks by a 9. 33% FAR95 margin.