Search Results for author: ZiHao Zhou

Found 15 papers, 6 papers with code

AttackEval: How to Evaluate the Effectiveness of Jailbreak Attacking on Large Language Models

no code implementations17 Jan 2024 Dong Shu, Mingyu Jin, Suiyuan Zhu, Beichen Wang, ZiHao Zhou, Chong Zhang, Yongfeng Zhang

In our research, we pioneer a novel approach to evaluate the effectiveness of jailbreak attacks on Large Language Models (LLMs), such as GPT-4 and LLaMa2, diverging from traditional robustness-focused binary evaluations.

Large Language Model as a Policy Teacher for Training Reinforcement Learning Agents

1 code implementation22 Nov 2023 ZiHao Zhou, Bin Hu, Chenyang Zhao, Pu Zhang, Bin Liu

By incorporating the guidance from the teacher agent, the student agent can distill the prior knowledge of the LLM into its own model.

Decision Making Language Modelling +2

MathAttack: Attacking Large Language Models Towards Math Solving Ability

no code implementations4 Sep 2023 ZiHao Zhou, Qiufeng Wang, Mingyu Jin, Jie Yao, Jianan Ye, Wei Liu, Wei Wang, Xiaowei Huang, Kaizhu Huang

Instead of attacking prompts in the use of LLMs, we propose a MathAttack model to attack MWP samples which are closer to the essence of security in solving math problems.

Adversarial Attack GSM8K +1

Solving Math Word Problem with Problem Type Classification

1 code implementation26 Aug 2023 Jie Yao, ZiHao Zhou, Qiufeng Wang

Firstly, We propose a problem type classifier that combines the strengths of the tree-based solver and the LLM solver.

Answer Selection Classification +4

Predicting Battery Lifetime Under Varying Usage Conditions from Early Aging Data

no code implementations17 Jul 2023 Tingkai Li, ZiHao Zhou, Adam Thelen, David Howey, Chao Hu

Using a newly generated dataset from 225 nickel-manganese-cobalt/graphite Li-ion cells aged under a wide range of conditions, we demonstrate a lifetime prediction of in-distribution cells with 15. 1% mean absolute percentage error using no more than the first 15% of data, for most cells.

Feature Engineering

Learning by Analogy: Diverse Questions Generation in Math Word Problem

1 code implementation15 Jun 2023 ZiHao Zhou, Maizhen Ning, Qiufeng Wang, Jie Yao, Wei Wang, Xiaowei Huang, Kaizhu Huang

We then feed them to a question generator together with the scenario to obtain the corresponding diverse questions, forming a new MWP with a variety of questions and equations.

Math

On Context Distribution Shift in Task Representation Learning for Offline Meta RL

1 code implementation1 Apr 2023 Chenyang Zhao, ZiHao Zhou, Bin Liu

Offline Meta Reinforcement Learning (OMRL) aims to learn transferable knowledge from offline datasets to enhance the learning process for new target tasks.

Continuous Control Meta Reinforcement Learning +3

Bayesian hierarchical modelling for battery lifetime early prediction

no code implementations10 Nov 2022 ZiHao Zhou, David A. Howey

Here, a hierarchical Bayesian linear model is proposed for battery life prediction, combining both individual cell features (reflecting manufacturing variability) with population-wide features (reflecting the impact of cycling conditions on the population average).

Management

Towards Efficient and Stable K-Asynchronous Federated Learning with Unbounded Stale Gradients on Non-IID Data

no code implementations2 Mar 2022 ZiHao Zhou, Yanan Li, Xuebin Ren, Shusen Yang

Federated learning (FL) is an emerging privacy-preserving paradigm that enables multiple participants collaboratively to train a global model without uploading raw data.

Federated Learning Privacy Preserving

Efficient demodulation scheme for multilevel modulation based optical camera communication

no code implementations15 Jan 2022 ZiHao Zhou, Maolin Li, Weipeng Guan

We proposed and experimentally demonstrated a new hybrid code structure based on the overlapping of two light sources to produce the effect of multi-voltage amplitudes.

Neural Point Process for Learning Spatiotemporal Event Dynamics

1 code implementation12 Dec 2021 ZiHao Zhou, Xingyi Yang, Ryan Rossi, Handong Zhao, Rose Yu

The key construction of our approach is the nonparametric space-time intensity function, governed by a latent process.

Point Processes Variational Inference

Multi-Frequency Wireless Channel Measurements and Characteristics Analysis in Indoor Corridor Scenarios

no code implementations14 Aug 2021 ZiHao Zhou, Li Zhang, Xinyue Chen, Cheng-Xiang Wang, Jie Huang

In this paper, we conduct wireless channel measurements in indoor corridor scenarios at 2. 4, 5 and 6 GHz bands with bandwidth of 320 MHz.

Neural Point Process for Forecasting Spatiotemporal Events

no code implementations1 Jan 2021 ZiHao Zhou, Xingyi Yang, Xinyi He, Ryan Rossi, Handong Zhao, Rose Yu

To the best of our knowledge, this is the first neural point process model that can jointly predict both the space and time of events.

Density Estimation Point Processes

Recognition and evaluation of constellation diagram using deep learning based on underwater wireless optical communication

no code implementations12 Jul 2020 ZiHao Zhou, Weipeng Guan, ShangSheng Wen

More specifically, an constellation diagram analyzer for UWOC system based on convolutional neural network (CNN) is designed for modulation format recognition (MFR), optical signal noise ratio (OSNR) and phase error estimation.

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