Search Results for author: Jingyi Jessica Li

Found 7 papers, 3 papers with code

Hierarchical Neyman-Pearson Classification for Prioritizing Severe Disease Categories in COVID-19 Patient Data

no code implementations1 Oct 2022 Lijia Wang, Y. X. Rachel Wang, Jingyi Jessica Li, Xin Tong

Here, we propose a hierarchical NP (H-NP) framework and an umbrella algorithm that generally adapts to popular classification methods and controls the under-classification errors with high probability.

Binary Classification Classification +1

Information-theoretic Classification Accuracy: A Criterion that Guides Data-driven Combination of Ambiguous Outcome Labels in Multi-class Classification

1 code implementation1 Sep 2021 Chihao Zhang, Yiling Elaine Chen, Shihua Zhang, Jingyi Jessica Li

While practitioners commonly combine ambiguous outcome labels for all data points (instances) in an ad hoc way to improve the accuracy of multi-class classification, there lacks a principled approach to guide the label combination for all data points by any optimality criterion.

Classification Multi-class Classification +1

Bridging Cost-sensitive and Neyman-Pearson Paradigms for Asymmetric Binary Classification

1 code implementation29 Dec 2020 Wei Vivian Li, Xin Tong, Jingyi Jessica Li

In contrast, the Neyman-Pearson paradigm can train classifiers to achieve a high-probability control of the population type I error, but it relies on sample splitting that reduces the effective training sample size.

Binary Classification General Classification +2

Issues arising from benchmarking single-cell RNA sequencing imputation methods

1 code implementation19 Aug 2019 Wei Vivian Li, Jingyi Jessica Li

We find that the semi-synthetic data have very different properties from those of real scRNA-seq data and that the cell clusters used for benchmarking are inconsistent with the cell types labeled by biologists.

Applications Genomics Quantitative Methods

Matched bipartite block model with covariates

no code implementations15 Mar 2017 Zahra S. Razaee, Arash A. Amini, Jingyi Jessica Li

Community detection or clustering is a fundamental task in the analysis of network data.

Clustering Community Detection +1

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