14 citations · 61 across the 19 of their papers we have counts for
20 papers
A note on Finiteness and Boundedness in Cartesian Products of Discrete and Well-Ordered Sets, Application to Transition Systems
Gerard Memmi
In this short note, we prove that any closed interval in a well-ordered and discrete space is finite. The coincidence between finiteness and boundedness can then be established for…
Invariants and Home Spaces in Transition Systems and Petri Nets
Gerard Memmi
This lecture note focuses on comparing the notions of invariance and home spaces in Transition Systems and more particularly, in Petri Nets. We also describe how linear algebra rel…
A Note on Generating Sets for Semiflows
Gerard Memmi
In this short note, we are interested in discussing characteristics of finite generating sets for , the set of all semiflows with non negative coefficients of a Petri…
A Data Augmentation-based Defense Method Against Adversarial Attacks in Neural Networks
Yi Zeng, Han Qiu, Gerard Memmi +1
Deep Neural Networks (DNNs) in Computer Vision (CV) are well-known to be vulnerable to Adversarial Examples (AEs), namely imperceptible perturbations added maliciously to cause wro…
Mitigating Advanced Adversarial Attacks with More Advanced Gradient Obfuscation Techniques
Han Qiu, Yi Zeng, Qinkai Zheng +3
Deep Neural Networks (DNNs) are well-known to be vulnerable to Adversarial Examples (AEs). A large amount of efforts have been spent to launch and heat the arms race between the at…
Investigating Image Applications Based on Spatial-Frequency Transform and Deep Learning Techniques
Qinkai Zheng, Han Qiu, Gerard Memmi +1
This is the report for the PRIM project in Telecom Paris. This report is about applications based on spatial-frequency transform and deep learning techniques. In this report, there…
Privacy-preserving Health Data Sharing for Medical Cyber-Physical Systems
Han Qiu, Meikang Qiu, Meiqin Liu +1
The recent spades of cyber security attacks have compromised end users' data safety and privacy in Medical Cyber-Physical Systems (MCPS). Traditional standard encryption algorithms…
Asymptotic Performance Analysis of Blockchain Protocols
Antoine Durand, Elyes Ben-Hamida, David Leporini +1
In the light of the recent fame of Blockchain technologies, numerous proposals and projects aiming at better practical viability have emerged. However, formally assessing their par…
Multi-hop Data Fragmentation in Unattended Wireless Sensor Networks
Keun-Woo Lim, Katarzyna Kapusta, Gerard Memmi +1
In this work, we analyze the advantages of multi-hop data fragmentation in unattended wireless sensor networks (UWSN) and propose a lightweight protocol to achieve it. UWSN has rec…
Revisiting Shared Data Protection Against Key Exposure
Katarzyna Kapusta, Gerard Memmi, Matthieu Rambaud
This paper puts a new light on secure data storage inside distributed systems. Specifically, it revisits computational secret sharing in a situation where the encryption key is exp…
PE-AONT: Partial Encryption combined with an All-or-Nothing Transform
Katarzyna Kapusta, Gerard Memmi
In this report, we introduce PE-AONT: a novel algorithm for fast and secure data fragmentation. Initial data are fragmented and only a selected subset of the fragments is encrypted…
Building the Case for Temperature Awareness in Energy Consumption Models: an Application of the Energy-Frequency Convexity Rule
Kameswar Vaddina, Florian Brandner, Gerard Memmi +1
Optimizing computing and communication systems that host energy-critical applications is becoming a key issue for software developers. In previous work, we introduced and validated…
A Fast Fragmentation Algorithm For Data Protection In a Multi-Cloud Environment
Katarzyna Kapusta, Gerard Memmi
Data fragmentation and dispersal over multiple clouds is a way of data protection against honest-but-curious storage or service providers. In this paper, we introduce a novel algor…
Data protection by means of fragmentation in various different distributed storage systems - a survey
Katarzyna Kapusta, Gerard Memmi
This paper analyzes various distributed storage systems that use data fragmentation and dispersal as a way of protection.Existing solutions have been organized into two categories:…
An Efficient Keyless Fragmentation Algorithm for Data Protection
Katarzyna Kapusta, Gerard Memmi, Hassan Noura
The family of Information Dispersal Algorithms is applied to distributed systems for secure and reliable storage and transmission. In comparison with perfect secret sharing it achi…
Data Protection: Combining Fragmentation, Encryption, and Dispersion, a final report
Gerard Memmi, Katarzyna Kapusta, Patrick Lambein +1
Hardening data protection using multiple methods rather than 'just' encryption is of paramount importance when considering continuous and powerful attacks in order to observe, stea…
Parameter Sensitivity Analysis of the Energy/Frequency Convexity Rule for Nanometer-scale Application Processors
Karel De Vogeleer, Gerard Memmi, Pierre Jouvelot
Both theoretical and experimental evidence are presented in this work in order to validate the existence of an Energy/Frequency Convexity Rule, which relates energy consumption and…
Theoretical Analysis of Radiative Cooling for Mobile and Embedded Systems
Karel De Vogeleer, Gerard Memmi, Pierre Jouvelot +1
A new global analytical model of the heat dissipation process that occurs in passively-cooled embedded systems is introduced, and we explicit under what circumstances the tradition…
Modeling the Temperature Bias of Power Consumption for Nanometer-Scale CPUs in Application Processors
Karel De Vogeleer, Gerard Memmi, Pierre Jouvelot +1
We introduce and experimentally validate a new macro-level model of the CPU temperature/power relationship within nanometer-scale application processors or system-on-chips. By adop…
The Energy/Frequency Convexity Rule: Modeling and Experimental Validation on Mobile Devices
Karel De Vogeleer, Gerard Memmi, Pierre Jouvelot +1
This paper provides both theoretical and experimental evidence for the existence of an Energy/Frequency Convexity Rule, which relates energy consumption and CPU frequency on mobile…