Search Results for author: Yihao Zhang

Found 20 papers, 10 papers with code

MILE: A Mutation Testing Framework of In-Context Learning Systems

1 code implementation7 Sep 2024 Zeming Wei, Yihao Zhang, Meng Sun

In this work, inspired by the foundations of adopting testing techniques in machine learning (ML) systems, we propose a mutation testing framework designed to characterize the quality and effectiveness of test data for ICL systems.

In-Context Learning

ShapeICP: Iterative Category-level Object Pose and Shape Estimation from Depth

no code implementations23 Aug 2024 Yihao Zhang, John J. Leonard

The task is particularly challenging because the three unknowns, object pose, object shape, and model-to-measurement correspondences, are compounded together but only a single view of depth measurements is provided.

Object

Automata Extraction from Transformers

1 code implementation8 Jun 2024 Yihao Zhang, Zeming Wei, Meng Sun

To improve the transparency of ML systems, automata extraction methods, which interpret stateful ML models as automata typically through formal languages, have proven effective for explaining the mechanism of recurrent neural networks (RNNs).

Boosting Jailbreak Attack with Momentum

1 code implementation2 May 2024 Yihao Zhang, Zeming Wei

Recently, the Greedy Coordinate Gradient (GCG) attack has demonstrated efficacy in exploiting this vulnerability by optimizing adversarial prompts through a combination of gradient heuristics and greedy search.

Exploring the Robustness of In-Context Learning with Noisy Labels

1 code implementation28 Apr 2024 Chen Cheng, Xinzhi Yu, Haodong Wen, Jingsong Sun, Guanzhang Yue, Yihao Zhang, Zeming Wei

In this paper, inspired by prior research that studies ICL ability using simple function classes, we take a closer look at this problem by investigating the robustness of Transformers against noisy labels.

Data Augmentation In-Context Learning +1

Towards General Conceptual Model Editing via Adversarial Representation Engineering

1 code implementation21 Apr 2024 Yihao Zhang, Zeming Wei, Jun Sun, Meng Sun

Since the development of Large Language Models (LLMs) has achieved remarkable success, understanding and controlling their internal complex mechanisms has become an urgent problem.

Generative Adversarial Network Model Editing

On the Duality Between Sharpness-Aware Minimization and Adversarial Training

1 code implementation23 Feb 2024 Yihao Zhang, Hangzhou He, Jingyu Zhu, Huanran Chen, Yifei Wang, Zeming Wei

Instead of perturbing the samples, Sharpness-Aware Minimization (SAM) perturbs the model weights during training to find a more flat loss landscape and improve generalization.

Adversarial Robustness

Building a digital twin of EDFA: a grey-box modeling approach

no code implementations13 Jul 2023 Yichen Liu, Xiaomin Liu, Yihao Zhang, Meng Cai, Mengfan Fu, Xueying Zhong, Lilin Yi, Weisheng Hu, Qunbi Zhuge

To enable intelligent and self-driving optical networks, high-accuracy physical layer models are required.

Weighted Automata Extraction and Explanation of Recurrent Neural Networks for Natural Language Tasks

1 code implementation24 Jun 2023 Zeming Wei, Xiyue Zhang, Yihao Zhang, Meng Sun

In this paper, we propose a novel framework of Weighted Finite Automata (WFA) extraction and explanation to tackle the limitations for natural language tasks.

Data Augmentation Model extraction

Using Z3 for Formal Modeling and Verification of FNN Global Robustness

1 code implementation20 Apr 2023 Yihao Zhang, Zeming Wei, Xiyue Zhang, Meng Sun

To evaluate the effectiveness of our implementation and improvements, we conduct extensive experiments on a set of benchmark datasets.

Adversarial Robustness

A Grey-box Launch-profile Aware Model for C+L Band Raman Amplification

no code implementations24 Jun 2022 Yihao Zhang, Xiaomin Liu, Yichen Liu, Lilin Yi, Weisheng Hu, Qunbi Zhuge

Based on the physical features of Raman amplification, we propose a three-step modelling scheme based on neural networks (NN) and linear regression.

regression

A Front-End for Dense Monocular SLAM using a Learned Outlier Mask Prior

no code implementations1 Apr 2021 Yihao Zhang, John J. Leonard

Recent achievements in depth prediction from a single RGB image have powered the new research area of combining convolutional neural networks (CNNs) with classical simultaneous localization and mapping (SLAM) algorithms.

Depth Estimation Depth Prediction +1

Bootstrapped Self-Supervised Training with Monocular Video for Semantic Segmentation and Depth Estimation

no code implementations19 Mar 2021 Yihao Zhang, John J. Leonard

For a robot deployed in the world, it is desirable to have the ability of autonomous learning to improve its initial pre-set knowledge.

Depth Estimation Self-Supervised Learning +1

Deep reinforcement learning with a particle dynamics environment applied to emergency evacuation of a room with obstacles

no code implementations30 Nov 2020 Yihao Zhang, Zhaojie Chai, George Lykotrafitis

Overall, we show that our model can efficiently simulate emergency evacuation in complex environments with multiple room exits and obstacles where it is difficult to obtain an intuitive rule for fast evacuation.

Q-Learning

FasterRCNN Monitoring of Road Damages: Competition and Deployment

2 code implementations22 Oct 2020 Hascoet Tristan, Yihao Zhang, Persch Andreas, Ryoichi Takashima, Tetsuya Takiguchi, Yasuo Ariki

Maintaining aging infrastructure is a challenge currently faced by local and national administrators all around the world.

Road Damage Detection

A deep reinforcement learning model based on deterministic policy gradient for collective neural crest cell migration

no code implementations7 Jul 2020 Yihao Zhang, Zhaojie Chai, Yubing Sun, George Lykotrafitis

Because of the different migration mechanisms of leader and follower neural crest cells, we train two types of agents (leaders and followers) to learn the collective cell migration behavior.

reinforcement-learning Reinforcement Learning (RL)

Local Contrast Learning

no code implementations10 Feb 2018 Chuanyun Xu, Yang Zhang, Xin Feng, YongXing Ge, Yihao Zhang, Jianwu Long

We focus on one-shot classification by deep learning approach based on a small quantity of training samples.

General Classification Small Data Image Classification

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