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Natural Language Understanding (NLU) is a vital component of dialogue systems, and its ability to detect Out-of-Domain (OOD) inputs is critical in practical applications, since the acceptance of the OOD input that is unsupported by the…

Computation and Language · Computer Science 2022-05-25 Yinhe Zheng , Guanyi Chen , Minlie Huang

Recently, Out-of-distribution (OOD) detection in dynamic graphs, which aims to identify whether incoming data deviates from the distribution of the in-distribution (ID) training set, has garnered considerable attention in security-sensitive…

Machine Learning · Computer Science 2025-06-16 Nan Sun , Xixun Lin , Zhiheng Zhou , Yanmin Shang , Zhenlin Cheng , Yanan Cao

Accurate cell type annotation is a crucial step in analyzing single-cell RNA sequencing (scRNA-seq) data, which provides valuable insights into cellular heterogeneity. However, due to the high dimensionality and prevalence of zero elements…

Machine Learning · Computer Science 2025-08-14 Huifa Li , Jie Fu , Xinlin Zhuang , Haolin Yang , Xinpeng Ling , Tong Cheng , Haochen xue , Imran Razzak , Zhili Chen

Test-Time Adaptation (TTA) aims to mitigate distributional shifts between training and test domains during inference time. However, existing TTA methods fall short in the realistic scenario where models face both continually changing…

Computer Vision and Pattern Recognition · Computer Science 2026-04-24 Yingkai Yang , Chaoqi Chen , Hui Huang

Cell type annotation is a fundamental step in the analysis of single-cell RNA sequencing (scRNA-seq) data. In practice, human experts often rely on the structure revealed by principal component analysis (PCA) followed by $k$-nearest…

Genomics · Quantitative Biology 2026-02-10 Tianxiang Hu , Chenyi Zhou , Jiaxiang Liu , Jiongxin Wang , Ruizhe Chen , Haoxiang Xia , Gaoang Wang , Jian Wu , Zuozhu Liu

Previous OOD detection systems only focus on the semantic gap between ID and OOD samples. Besides the semantic gap, we are faced with two additional gaps: the domain gap between source and target domains, and the class-imbalance gap between…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Xiang Fang , Arvind Easwaran , Blaise Genest , Ponnuthurai Nagaratnam Suganthan

In many real-world settings, machine learning models need to identify user inputs that are out-of-domain (OOD) so as to avoid performing wrong actions. This work focuses on a challenging case of OOD detection, where no labels for in-domain…

Computation and Language · Computer Science 2022-03-23 Di Jin , Shuyang Gao , Seokhwan Kim , Yang Liu , Dilek Hakkani-Tur

Single-cell RNA sequencing (scRNA-seq) enables the study of cellular diversity at single cell level. It provides a global view of cell-type specification during the onset of biological mechanisms such as developmental processes and human…

Machine Learning · Computer Science 2025-11-05 Muhammad Umar , Andras Lakatos , Muhammad Asif , Arif Mahmood

Single-cell RNA sequencing (scRNA-seq) technology provides high-throughput gene expression data to study the cellular heterogeneity and dynamics of complex organisms. Graph neural networks (GNNs) have been widely used for automatic cell…

Machine Learning · Computer Science 2023-12-19 Rui Yang , Wenrui Dai , Chenglin Li , Junni Zou , Dapeng Wu , Hongkai Xiong

RNA-sequencing (RNA-seq) has become an exemplar technology in modern biology and clinical applications over the past decade. It has gained immense popularity in the recent years driven by continuous efforts of the bioinformatics community…

Single-cell RNA sequencing provides tremendous insights to understand biological systems. However, the noise from dropout can corrupt the downstream biological analysis. Hence, it is desirable to impute the dropouts accurately. In this…

Quantitative Methods · Quantitative Biology 2020-08-11 Kexin Huang

RNA sequencing (RNA-seq) has been rapidly adopted for the profiling of transcriptomes in many areas of biology, including studies into gene regulation, development and disease. Of particular interest is the discovery of differentially…

The ability to measure the transcriptomes of single cells has only been feasible for a few years, and is becoming an extremely popular assay. While many types of analysis and questions can be answered using single cell RNA-sequencing, a…

Genomics · Quantitative Biology 2017-08-09 Valentine Svensson , Roser Vento-Tormo , Sarah A Teichmann

Convolutional neural networks (CNNs) can learn directly from raw data, resulting in exceptional performance across various research areas. However, factors present in non-controllable environments such as unlabeled datasets with varying…

Computer Vision and Pattern Recognition · Computer Science 2024-12-25 Lucas Fernando Alvarenga e Silva , Samuel Felipe dos Santos , Nicu Sebe , Jurandy Almeida

The advent of single-cell Assay for Transposase-Accessible Chromatin using sequencing (scATAC-seq) offers an innovative perspective for deciphering regulatory mechanisms by assembling a vast repository of single-cell chromatin accessibility…

Genomics · Quantitative Biology 2025-10-28 Yifeng Jiao , Yuchen Liu , Yu Zhang , Xin Guo , Yushuai Wu , Chen Jiang , Jiyang Li , Hongwei Zhang , Limei Han , Xin Gao , Yuan Qi , Yuan Cheng

We present a novel method for automated identification of putative cell types from single-cell RNA-seq (scRNA-seq) data. By iteratively applying a machine learning approach to an initial clustering of gene expression profiles of a given set…

Quantitative Methods · Quantitative Biology 2020-04-22 Zhichao Miao , Pablo Moreno , Ni Huang , Irene Papatheodorou , Alvis Brazma , Sarah A Teichmann

Single-cell RNA sequencing (scRNA-seq) has revolutionized our ability to analyze gene expression at the cellular level. By providing data on gene expression for each individual cell, scRNA-seq generates large datasets with thousands of…

Computational Complexity · Computer Science 2025-02-11 Md Romizul Islam , Swakkhar Shatabda

Recent developments in single-cell omics technologies have enabled the quantification of molecular profiles in individual cells at an unparalleled resolution. Deep learning, a rapidly evolving sub-field of machine learning, has instilled a…

Genomics · Quantitative Biology 2024-01-17 Manoj M Wagle , Siqu Long , Carissa Chen , Chunlei Liu , Pengyi Yang

Understanding the dynamic nature of biological systems is fundamental to deciphering cellular behavior, developmental processes, and disease progression. Single-cell RNA sequencing (scRNA-seq) has provided static snapshots of gene…

Quantitative Methods · Quantitative Biology 2025-05-02 Zhenyi Zhang , Yuhao Sun , Qiangwei Peng , Tiejun Li , Peijie Zhou

Identifying cell clusters is a critical step for single-cell transcriptomics study. Despite the numerous clustering tools developed recently, the rapid growth of scRNA-seq volumes prompts for a more (computationally) efficient clustering…

Quantitative Methods · Quantitative Biology 2023-01-11 Nana Wei , Yating Nie , Lin Liu , Xiaoqi Zheng , Hua-Jun Wu4