no code implementations • 10 Jun 2021 • Shashank Kotyan, Danilo Vasconcellos Vargas
We also analyse how different adversarial samples distort the attention of the neural network compared to original samples.
no code implementations • 2 Sep 2020 • Danilo Vasconcellos Vargas, Bingli Liao, Takahiro Kanzaki
Thus, $\varphi$DNNs reveal that input recreation has strong benefits for artificial neural networks similar to biological ones, shedding light into the importance of purposely corrupting the input as well as pioneering an area of perception models based on GANs and autoencoders for robust recognition in artificial intelligence.
1 code implementation • 14 Jun 2020 • Danilo Vasconcellos Vargas, Toshitake Asabuki
Here, we propose a continual generalization of the chunking problem (an unsupervised problem), encompassing fixed and probabilistic chunks, discovery of temporal and causal structures and their continual variations.
no code implementations • 25 Sep 2019 • Danilo Vasconcellos Vargas, Shashank Kotyan, Moe Matsuki
The main idea lies in the fact that some features are present on unknown classes and that unknown classes can be defined as a combination of previous learned features without representation bias (a bias towards representation that maps only current set of input-outputs and their boundary).
1 code implementation • 27 Jun 2019 • Shashank Kotyan, Danilo Vasconcellos Vargas
By creating a novel neural architecture search with options for dense layers to connect with convolution layers and vice-versa as well as the addition of concatenation layers in the search, we were able to evolve an architecture that is inherently accurate on adversarial samples.
1 code implementation • 15 Jun 2019 • Shashank Kotyan, Danilo Vasconcellos Vargas, Moe Matsuki
A crucial step to understanding the rationale for this lack of robustness is to assess the potential of the neural networks' representation to encode the existing features.
1 code implementation • 14 Jun 2019 • Shashank Kotyan, Danilo Vasconcellos Vargas
There exists a vast number of adversarial attacks and defences for machine learning algorithms of various types which makes assessing the robustness of algorithms a daunting task.
no code implementations • 26 Apr 2019 • Shashank Kotyan, Danilo Vasconcellos Vargas, Venkanna U
Intrinsically, driving is a Markov Decision Process which suits well the reinforcement learning paradigm.
no code implementations • 18 Apr 2019 • Vinicius V. Melo, Danilo Vasconcellos Vargas, Wolfgang Banzhaf
Lexicase selection achieves very good solution quality by introducing ordered test cases.
no code implementations • 6 Mar 2019 • Danilo Vasconcellos Vargas, Junichi Murata, Hirotaka Takano
In this paper, both problems are solved together without approximations or simplifications.
no code implementations • 8 Feb 2019 • Danilo Vasconcellos Vargas, Jiawei Su
Deep neural networks were shown to be vulnerable to single pixel modifications.
no code implementations • 22 Jan 2019 • Di Li, Danilo Vasconcellos Vargas, Sakurai Kouichi
Here, we go beyond attacks to investigate, for the first time, universal rules, i. e., rules that are sample agnostic and therefore could turn any text sample in an adversarial one.
1 code implementation • 6 Jan 2019 • Danilo Vasconcellos Vargas, Junichi Murata
The combination of Spectrum Diversity with a unified neuron representation enables the algorithm to either surpass or equal NeuroEvolution of Augmenting Topologies (NEAT) on all of the five classes of problems tested.
1 code implementation • 2 Jan 2019 • Danilo Vasconcellos Vargas, Junichi Murata, Hirotaka Takano, Alexandre Claudio Botazzo Delbem
Structured evolutionary algorithms have been investigated for some time.
no code implementations • 20 Nov 2018 • Danilo Vasconcellos Vargas, Hirotaka Takano, Junichi Murata
Here, a variation of the first algorithm is proposed which uses a parameterless self organizing map (SOM).
no code implementations • 20 Nov 2018 • Danilo Vasconcellos Vargas, Hirotaka Takano, Junichi Murata
In fact, the proposed algorithm possesses a dynamical population structure that self-organizes itself to better project the input space into a map.
no code implementations • 20 Nov 2018 • Danilo Vasconcellos Vargas, Hirotaka Takano, Junichi Murata
Experiments are conducted with the contingency training applied to neural networks over traditional datasets as well as datasets with additional irrelevant variables.
no code implementations • 19 Sep 2018 • Danilo Vasconcellos Vargas, Hirotaka Takano, Junichi Murata
Moreover, NOTC is compared with NeuroEvolution of Augmenting Topologies (NEAT) in these problems, revealing a trade-off between the approaches.
no code implementations • 19 Apr 2018 • Jiawei Su, Danilo Vasconcellos Vargas, Kouichi Sakurai
The attack only requires modifying 5 pixels with 20. 44, 14. 76 and 22. 98 pixel values distortion.
no code implementations • 11 Feb 2018 • Jiawei Su, Danilo Vasconcellos Vargas, Sanjiva Prasad, Daniele Sgandurra, Yaokai Feng, Kouichi Sakurai
The Internet of Things (IoT) is an extension of the traditional Internet, which allows a very large number of smart devices, such as home appliances, network cameras, sensors and controllers to connect to one another to share information and improve user experiences.
5 code implementations • 24 Oct 2017 • Jiawei Su, Danilo Vasconcellos Vargas, Sakurai Kouichi
The results show that 67. 97% of the natural images in Kaggle CIFAR-10 test dataset and 16. 04% of the ImageNet (ILSVRC 2012) test images can be perturbed to at least one target class by modifying just one pixel with 74. 03% and 22. 91% confidence on average.