Search Results for author: Biao Chen

Found 6 papers, 2 papers with code

Harvesting Ambient RF for Presence Detection Through Deep Learning

2 code implementations13 Feb 2020 Yang Liu, Tiexing Wang, Yuexin Jiang, Biao Chen

With presence detection, how to collect training data with human presence can have a significant impact on the performance.

Action Detection Activity Detection

FOCUS: Dealing with Label Quality Disparity in Federated Learning

1 code implementation29 Jan 2020 Yiqiang Chen, Xiaodong Yang, Xin Qin, Han Yu, Biao Chen, Zhiqi Shen

It maintains a small set of benchmark samples on the FL server and quantifies the credibility of the client local data without directly observing them by computing the mutual cross-entropy between performance of the FL model on the local datasets and that of the client local FL model on the benchmark dataset.

Federated Learning Privacy Preserving

Asymptotically Optimal One- and Two-Sample Testing with Kernels

no code implementations27 Aug 2019 Shengyu Zhu, Biao Chen, Zhitang Chen, Pengfei Yang

With Sanov's theorem, we derive a sufficient condition for one-sample tests to achieve the optimal error exponent in the universal setting, i. e., for any distribution defining the alternative hypothesis.

Change Detection Two-sample testing +1

K-medoids Clustering of Data Sequences with Composite Distributions

no code implementations31 Jul 2018 Tiexing Wang, Qunwei Li, Donald J. Bucci, Yingbin Liang, Biao Chen, Pramod K. Varshney

In particular, the error exponent is characterized when either the Kolmogrov-Smirnov distance or the maximum mean discrepancy are used as the distance metric.

Clustering

Exponentially Consistent Kernel Two-Sample Tests

no code implementations23 Feb 2018 Shengyu Zhu, Biao Chen, Zhitang Chen

Given two sets of independent samples from unknown distributions $P$ and $Q$, a two-sample test decides whether to reject the null hypothesis that $P=Q$.

Change Detection Vocal Bursts Valence Prediction

Universal Hypothesis Testing with Kernels: Asymptotically Optimal Tests for Goodness of Fit

no code implementations21 Feb 2018 Shengyu Zhu, Biao Chen, Pengfei Yang, Zhitang Chen

We show that two classes of Maximum Mean Discrepancy (MMD) based tests attain this optimality on $\mathbb R^d$, while the quadratic-time Kernel Stein Discrepancy (KSD) based tests achieve the maximum exponential decay rate under a relaxed level constraint.

Two-sample testing

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