Denoising Autoencoder-based Defensive Distillation as an Adversarial Robustness Algorithm

Adversarial attacks significantly threaten the robustness of deep neural networks (DNNs). Despite the multiple defensive methods employed, they are nevertheless vulnerable to poison attacks, where attackers meddle with the initial training data. In order to defend DNNs against such adversarial attacks, this work proposes a novel method that combines the defensive distillation mechanism with a denoising autoencoder (DAE). This technique tries to lower the sensitivity of the distilled model to poison attacks by spotting and reconstructing poisonous adversarial inputs in the training data. We added carefully created adversarial samples to the initial training data to assess the proposed method's performance. Our experimental findings demonstrate that our method successfully identified and reconstructed the poisonous inputs while also considering enhancing the DNN's resilience. The proposed approach provides a potent and robust defense mechanism for DNNs in various applications where data poisoning attacks are a concern. Thus, the defensive distillation technique's limitation posed by poisonous adversarial attacks is overcome.Comment: This paper have 4 pages, 3 figures and it is accepted at the Ada User journa

A sustentabilidade como caminho

Hoje o design tenta refazer os propósitos e os estímulos dum passado para compreender os objetivos e desafios do projeto futuro. Existe uma necessidade de perceção sólida dos conceitos de design anexos ao contexto ambiental e a sua expressividade histórica para afluirmos aos pontos sem alternativa e legitimados pelas consequentes alterações sociais e ambientais da sociedade atual. Esta derivação reveste-se numa caracterização e num domínio de metas para uma mudança radical na condução da investigação científica, nos processos educativos, na arbitrariedade da produção industrial, na predisposição de alterar condutas e costumes implícitos no carácter holístico que reveste a síntese da globalidade

O designer e os caminhos do desenvolvimento sustentável

A sustentabilidade da nossa sociedade, está dependente de interações complexas entre as várias espécies e ecossistemas. A incapacidade da biosfera garantir a biodiversidade desses ecossistemas conduz à sua degradação sistemática, detetável através de inúmeros sintomas,tais como alterações climaticas, efeitos ecotóxicas, doenças, perda de biodiversidade, perda de produtividade dos solos e mares, tensões sociais e politicas, etc. (Robèrt ,2000)

Idempotent Varieties of Incidence Monoids and Bipartite Posets

090ENH-21The algebraic variety defined by the idempotents of an incidence monoid is investigated. Its irreducible components are determined. The intersection with an antichain submonoid is shown to be the union of these irreducible components. The antichain monoids of bipartite posets are shown to be orthodox semigroups. The Green’s relations are explicitly determined, and applications to conjugacy problems are described. In particular, it is shown that two elements in the antichain monoid are primarily conjugate in the monoid if and only if they belong to the same -class and their multiplication by an idempotent of the same -class gives conjugate elements in the group.epub_ahead_of_prin

Corporate identity design innovation

Corporate identity, as a tool for identifying an interactive structure trough visual depict representation in particular, the creativity domains, where is possible to explore an innovative knowledge through systemic perspective. Innovation has origin in the exploration of creativity and in the capacity to connect the dots (Jobs, Steve), usually suspended asleep or that belong to our internal/external scenery. Most of the individuals interpret creativity as a generic procedure, something which cannot be measured or even planned. The cultural barriers and the strict structures still rooted in our traditions, increase this gap between human creative brains and the real creative production (Barreto, 2007). This paper reports the concept development of the corporate identity of IDEMi09, represented by a cellular esqueme and the idealistic interaction between the areas and the total image scenario that should result in a mirror of innovation process within conference aims. An interpretation indicates that this corporate identity design, does not accomplish a static image logo, but a workable structure, sufficiently open minded to have other interpretations in bi-dimensional and tri-dimensional configuration presentatio

Event Timestamping Tool: a simple PC based kernel to timestamp distributed events

This report describes the design and implementation of a tool to timestamp distributed events, using a standard PC hardware platform. The Event Timestamping Tool (ETT) is a small software kernel that detects externally generated events using two probe sources, and stores the respective timestamps with known precision bounds. A specialized kernel solution minimizes the response time for an event detection and registration and, consequently, maximizes the precision of the tool. Our approach exploits the Pentium processor internal timestamp counter to provide timestamps with fine granularit

Lightweight Dependable Adaptation for Wireless Sensor Networks

Achieving dependable and real-time operation in Wireless Sensor Networks (WSNs) is a hard and open problem. This can be an obstacle for many applications, namely in the automotive and medical domains, particularly if safety-critical control is envisaged. To overcome the communication uncertainties that are intrinsic to wireless and dynamic environments, a generic approach is to constantly adapt to environment conditions. This requires appropriate solutions to characterize such conditions. This paper contributes with a lightweight solution for a dependable characterization of network QoS metrics, which is appropriate to support dependable adaptation in WSNs. The proposed solution offers probabilistic guarantees, building on non-parametric stochastic analysis to achieve fast and effective results. The paper also provides an evaluation of the solution.FCT, CMU-Portuga

Timing Failure Detection with a Timely Computing Base

In a recent report we proposed an architectural construct to address the problem of dealing with timeliness specifications in a generic way. We called it the Timely Computing Base, TCB. The TCB defines a set of services available to applications, including timely execution, duration measurement and timing failure detection. We showed how these services could be used to build dependable and timely applications. In this paper we further extend the description of the TCB, namely by presenting a protocol for its Timing Failure Detection (TFD) service. We discuss the essential aspects of providing such a service under the TCB framework and make some considerations relative to the service interfac