Deep neural networks (DNNs) are one of the most widely used machine learning
algorithm. DNNs requires the training data to be available beforehand with true
labels. This is not feasible for many real-world problems where data arrives in
the streaming form and acquisition of true labels are scarce and expensive. In
the literature, not much focus has been given to the privacy prospect of the
streaming data, where data may change its distribution frequently. These
concept drifts must be detected privately in order to avoid any disclosure risk
from DNNs. Existing privacy models use concept drift detection schemes such
ADWIN, KSWIN to detect the drifts. In this paper, we focus on the notion of
integrally private DNNs to detect concept drifts. Integrally private DNNs are
the models which recur frequently from different datasets. Based on this, we
introduce an ensemble methodology which we call 'Integrally Private Drift
Detection' (IPDD) method to detect concept drift from private models. Our IPDD
method does not require labels to detect drift but assumes true labels are
available once the drift has been detected. We have experimented with binary
and multi-class synthetic and real-world data. Our experimental results show
that our methodology can privately detect concept drift, has comparable utility
(even better in some cases) with ADWIN and outperforms utility from different
levels of differentially private models. The source code for the paper is
available
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深度神经网络（DNNs）是最广泛使用的机器学习算法之一。本文关注集成私有 DNNs 的概念来检测概念漂移，并引入一种名为 IPDD 的集成方法，不需要标签即可检测漂移。实验证明该方法在隐私性和效用上具有可比性。