相关实验视频
Updated: Sep 18, 2025

06:07
Building Double-decker Traps for Early Detection of Emerald Ash Borer
Published on: October 4, 2017
8.0K
DTGBA:一个更强大的图形后门攻击与双触发器
1College of Computer Science and Technology, Ocean University of China, Qingdao, 266100, China.
概括
本研究介绍了双触发器图形后门攻击 (DTGBA),以提高图形神经网络 (GNN) 的安全性. DTGBA增强了对防御的不可察觉性和强度,使得图形后门攻击更有效.
科学领域:
- 人工智能的人工智能
- 机器学习 机器学习
- 网络安全 网络安全
背景情况:
- 图形神经网络 (GNN) 容易受到后门攻击.
- 现有的攻击缺乏不可察觉性,容易受到诸如随机边缘掉落等防御的攻击.
研究的目的:
- 为了提出一个新的图形后门攻击,双触发图形后门攻击 (DTGBA).
- 为了提高图形后门攻击对现有防御的不可察觉性和稳定性.
主要方法:
- 对于对抗训练,DTGBA使用了一个不可察觉的注入触发器和歧视器.
- 一个特征面具学习器识别和修改关键特征维度以创建基于特征的触发器.
- 双触发器 (注入和基于功能) 确保攻击的有效性,即使在触发器被移除后.
主要成果:
- 在降低GNN准确度方面,DTGBA表现出卓越的性能.
- 与现有方法相比,拟议的攻击更难以察觉,更强大.
- 广泛的实验验证了DTGBA的有效性.
结论:
- DTGBA在图形后门攻击方法上取得了重大进展.
- 双触发方法克服了以前攻击和防御的局限性.
- 这项研究突出了GNN中的关键安全漏洞.
相关概念视频
Voltage Doubler Circuit
889
A voltage doubler circuit integrates two main components: a clamping section and a rectifier section. The clamping section consists of a capacitor (C1) and a diode (D1), whereas the rectifier section is equipped with another diode (D2) and capacitor (C2). This circuit produces an output voltage with twice the amplitude of the sinusoidal input voltage.
889
Underflow Gates
105
Underflow gates are vital for controlling water flow in irrigation canals. The three main types of underflow gates — vertical, radial, and drum gates — serve different purposes while ensuring effective flow management. Vertical gates move up and down, generating a free-flowing water jet; radial gates pivot to regulate the flow; and drum gates rotate for precise adjustments. The flow through these gates is influenced by downstream conditions, resulting in free or drowned outflow.Free and...
105
Leaky Scanning
5.2K
During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA. Marilyn Kozak discovered that the sequence RCCAUGG (where R...
5.2K
Hydraulic Jump: Problem Solving
148
To analyze a hydraulic jump in a rectangular channel with a flow speed of 6 meters per second, follow these steps:Calculate Effective Upstream Velocity:When the downstream gate closes, a hydraulic jump forms, traveling upstream at 2 meters per second. This wave speed combines with the initial channel flow velocity, creating an effective upstream velocity.Identify Flow Velocities Before and After the Hydraulic Jump:Upstream of the hydraulic jump, the effective flow velocity includes both the...
148
Interference and Decay
215
Forgetting is a complex cognitive phenomenon influenced by several factors, among which interference and decay are particularly prominent. These processes explain why individuals often struggle to retrieve specific information from memory, leading to lapses in recall that can be observed in everyday situations.
Interference occurs when competing memories hinder the retrieval of particular information. It can be classified into two types: proactive and retroactive interference. Proactive...
Interference occurs when competing memories hinder the retrieval of particular information. It can be classified into two types: proactive and retroactive interference. Proactive...
215
Collisions in Multiple Dimensions: Introduction
5.6K
It is far more common for collisions to occur in two dimensions; that is, the initial velocity vectors are neither parallel nor antiparallel to each other. Let's see what complications arise from this. The first idea is that momentum is a vector. Like all vectors, it can be expressed as a sum of perpendicular components (usually, though not always, an x-component and a y-component, and a z-component if necessary). Thus, when the statement of conservation of momentum is written for a...
5.6K

