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Human brain mapping conference 2018
Human brain mapping conference 2018









human brain mapping conference 2018

  • Adversarial examples offer insights into many fundamental ML challenges: fairness, model based optimization, safety, etc.
  • However, note that strong attacks can subvert all detection methods (Carlini & Wagner, 2017).
  • Defense against such attacks fall into two categories: (a) Reactive: detecting the adversarial samples and (b) Proactive: improving the training phase to make the model more robust.
  • It is easier to steal someone’s model than it is to train your own for adversarial attacks.
  • To check if the provider of the remote platform mattered, the team tested on MetaMind, Amazon Web Services and Google Cloud Platform and found no significant difference:.
  • human brain mapping conference 2018

  • Using novel methods for estimating the previously unknown dimensionality of the space of adversarial inputs, higher dimensions are more likely to intersect.
  • Ensemble methods is not a good approach and does not help.

    human brain mapping conference 2018 human brain mapping conference 2018

    When a decision tree was used instead, it was also misclassifying the input. Adversarial example transferability: Samples crafted to mislead a model A are likely to mislead model B even though it does not have access to it.This approximation is the substitute network that mounts the attack. Using this synthetic dataset, the attacker proceeds to build an approximation of the model learned by the oracle. The black-box adversary is only able to observe the labels given by the deep neural network and, is able to train a substitute model by using the target deep neural network as an oracle to construct a synthetic dataset. Nicholas then dived into the black-box attacks.Implications: Since RL is used in robotics, these attacks could make them dangerous. The surprising fact was that there was no need to introduce perturbation in each frame. Using Reinforcement Learning (RL), he showed a video game of Ping-Pong.

    #Human brain mapping conference 2018 code

    the XML file that contains the manifest needed only a few lines of code to be added to achieve the modification The strength is in the Jacobian approach which allows control of specific features to be modified.Not restricted to a specific ML approach.Check the cleverhans repository if you want to check these out. This is different from Kullback-Leibler (KL) divergence suggested by Miyato et al., 2015 and elastic net optimization (Goodfellow et al., 2016). The team designed a map to answer: what input features of x make the most significant changes to the output? Called the Jacobian-based Saliency Map Attack (JSMA) showed that a small perturbation could induce large output variations.In the case of the black-box: the attacker does not see the model but is still able to marshal an attack by querying. Types of adversaries and the threat model: In the case of the white-box adversary, the attacker may see and inspect the model and then plan the attack.This talk focused on the ML model aspect. The attack surface spans the physical domain, digital representation, Machine Learning (ML) model and again the physical domain.This talk, which focused on Deep Learning in Adversarial context, was split into two parts:.showed that black box attacks could succeed without any access to the training data. found that a specific adversarial network (using MNIST) has a small but higher error rate on transferred examples rather than on white-box examples. found that adversarial examples can transfer between machine learning models. Just to recap a little: In 2014, Szegedy et al.You may recollect that he spoke, along with Nicholas Carlini, at the recent ODSC West 2017, on “Tutorial on Adversarial Machine Learning with CleverHans”, which you can re-read here. He explains very clearly, a lot of complex concepts. Nicholas Papernot is a pleasure to listen to.Nicholas Papernot, PhD Fellow Google, Penn State University Click here (insert hyperlink here) for the Day 1 Highlights. Here are the highlights of Day 2, Thursday, February 1.











    Human brain mapping conference 2018