Results 101 to 110 of about 7,737 (292)

Symmetry Defense Against CNN Adversarial Perturbation Attacks

, 2023
This paper uses symmetry to make Convolutional Neural Network classifiers (CNNs) robust against adversarial perturbation attacks. Such attacks add perturbation to original images to generate adversarial images that fool classifiers such as road sign ...
Lindqvist, Blerta
core   +1 more source

Multi‐Agent Reinforcement Learning for Joint Police Patrol and Dispatch

Naval Research Logistics (NRL), EarlyView.
ABSTRACT Police patrol units need to split their time between performing preventive patrol and being dispatched to serve emergency incidents. In the existing literature, patrol and dispatch decisions are often studied separately. We consider joint optimization of these two decisions to improve police operations efficiency and reduce response time to ...
Matthew Repasky, He Wang, Yao Xie
wiley   +1 more source

Moving target defense for adaptive adversaries

2013 IEEE International Conference on Intelligence and Security Informatics, 2013
Machine learning (ML) plays a central role in the solution of many security problems, for example enabling malicious and innocent activities to be rapidly and accurately distinguished and appropriate actions to be taken. Unfortunately, a standard assumption in ML - that the training and test data are identically distributed - is typically violated in ...
Richard Colbaugh, Kristin Glass
openaire   +2 more sources

Enhancing Resilience Against Adversarial Attacks of Deep Neural Networks Using Efficient Two-Step Adversarial Defense [PDF]

, 2019
In recent years, deep neural networks have demonstrated outstanding performance in many machine learning tasks. However, researchers have discovered that these state-of-the-art models are vulnerable to adversarial examples: legitimate examples added by ...
Chang, Ting-Jui
core  

Attention, Please! Adversarial Defense via Activation Rectification and Preservation

, 2022
This study provides a new understanding of the adversarial attack problem by examining the correlation between adversarial attack and visual attention change.
Yu, Jian, Sang, Jitao, Zhang, Jiaming, Xu, Kaiyuan, Wu, Shangxi   +4 more
core   +1 more source

Navigating the Rapids: How Non‐Governmental Organization Managers Develop Strategic Adaptation to Repressive Political Environments

Public Administration and Development, EarlyView.
ABSTRACT This article explores the management adaptation strategies non‐governmental organizations (NGOs) managers employ in order to operate in repressive political environments. It answers the question: how do NGO managers initiate, manage and sustain internal change when the political/regulatory environment changes?
Charles Kaye‐Essien, Shahjahan Bhuiyan, Ghadeer Ali   +2 more
wiley   +1 more source

Why do we burn? Examining arguments underpinning the use of prescribed burning to manage wildfire risk

People and Nature, EarlyView.
Abstract Managing wildfire risk requires consideration of complex and uncertain scientific evidence as well as trade‐offs between different values and goals. Conflicting perspectives on what values and goals are most important, what ought to be done and what trade‐offs are acceptable complicate those decisions.
Pele J. Cannon, Sarah Clement
wiley   +1 more source

Advancing a National Dialogue on Disability in Catholic Education

Psychology in the Schools, EarlyView.
ABSTRACT This qualitative descriptive study examined perspectives from 85 participants at the National Convening on Disability and Catholic Education, a 3‐day gathering of Catholic school leaders, educators, and advocates. Using reflexive thematic analysis of structured roundtable dialogues, the study identified psychological and organizational factors
Michael J. Boyle
wiley   +1 more source

Stop Using Limiting Stimuli as a Measure of Sensitivities of Energetic Materials

Propellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT Accurately estimating the sensitivity of explosive materials is a potentially life‐saving task that requires standardised protocols across nations. One of the most widely applied procedures worldwide is the so‐called ‘1‐In‐6’ test from the United Nations (UN) Manual of Tests in Criteria, which estimates a ‘limiting stimulus’ for a material. In
Dennis Christensen, Geir Petter Novik
wiley   +1 more source

On the Desirability of an Efficiency Defense in Merger Control [PDF]

We develop a model in which two firms that have proposed to merge are privately informed about merger-specific efficiencies. This enables the firms to influence the merger control procedure by strategically revealing their information to an antitrust ...
Paul Heidhues, Johan Lagerlöf
core