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MultiparameterPersistenceImagesforTopological MachineLearning
However,in manyapplications there are several different parameters one might wish to vary: for example, scale and density. In contrast to the one-parameter setting, techniques for applying statistics and machine learning in the setting of multiparameter persistence are not well understood due to the lack of a concise representationoftheresults.
CoPur: CertifiablyRobustCollaborativeInferencevia FeaturePurification
Collaborative inference leverages diverse features provided by different agents (e.g.,sensors)formoreaccurateinference. Acommonsetupiswhereeachagent sends its embedded features instead of the raw data to the Fusion Center (FC) for joint prediction. In this setting, we consider inference phase attacks when asmall fraction of agents is compromised.
SupplementaryMaterialsFor: " DomainAdaptation with InvariantRepresentationLearning: What TransformationstoLearn? "
Furthermore, letฯ: X Z be an encoder s.t. Then, there is no functionฯ s.t. Let there be a subset in the invariant spaceB Z, and suppose that we have marginal invariance inthelatent space:PS(ฯ(X) B) = PT(ฯ(X) B), B. Define thepre-image ofB as: A={a X:ฯ(a) B}. Let A X be a region s.t. We followed the procedure in [2], and used a mixture kernel function ofq RBF kernels: ฮบ(z1,z2) = Pq i=1ฮทiexp{ ||z1 z2||2}/ฯ2i, where ฯ2i is the kernel width of the i-th kernel, and ฮทi is a mixing weight which we set to1/q.
De-AnonymizingTextby FingerprintingLanguageGeneration
Components of machine learning systems are not (yet) perceived as security hotspots. Secure coding practices, such as ensuring that no execution paths depend on confidential inputs, have not yet been adopted by ML developers. We initiate the study of code security of ML systems by investigating how nucleus sampling--a popular approach forgeneratingtext,used forapplications such as auto-completion--unwittingly leakstextstypedbyusers.