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We propose a method for extracting hierarchical backbones from a bipartite network. Our method leverages the observation that a hierarchical relationship between two nodes in a bipartite network is often manifested as an asymmetry in the…

Social and Information Networks · Computer Science 2020-03-20 Woo Seong Jo , Jaehyuk Park , Arthur Luhur , Beom Jun Kim , Yong-Yeol Ahn

Hierarchical text classification aims to leverage label hierarchy in multi-label text classification. Existing methods encode label hierarchy in a global view, where label hierarchy is treated as the static hierarchical structure containing…

Computation and Language · Computer Science 2022-11-09 Ting Jiang , Deqing Wang , Leilei Sun , Zhongzhi Chen , Fuzhen Zhuang , Qinghong Yang

Inspired by the human ability to learn and organize knowledge into hierarchical taxonomies with prototypes, this paper addresses key limitations in current deep hierarchical clustering methods. Existing methods often tie the structure to…

Computer Vision and Pattern Recognition · Computer Science 2025-10-01 Zekun Wang , Ethan Haarer , Tianyi Zhu , Zhiyi Dai , Christopher J. MacLellan

In this paper we attempt to address the problem of geometric multi-model fitting with resorting to a few weakly annotated (WA) data points, which has been sparsely studied so far. In weak annotating, most of the manual annotations are…

Computer Vision and Pattern Recognition · Computer Science 2020-01-22 Chao Zhang , Xuequan Lu , Katsuya Hotta , Xi Yang

The multi-label classification problem has generated significant interest in recent years. However, existing approaches do not adequately address two key challenges: (a) the ability to tackle problems with a large number (say millions) of…

Machine Learning · Computer Science 2013-11-26 Hsiang-Fu Yu , Prateek Jain , Purushottam Kar , Inderjit S. Dhillon

Hierarchical multi-label classification (HMC) has gained considerable attention in recent decades. A seminal line of HMC research addresses the problem in two stages: first, training individual classifiers for each class, then integrating…

Machine Learning · Computer Science 2025-11-04 Yuting Ye , Christine Ho , Ci-Ren Jiang , Wayne Tai Lee , Haiyan Huang

Multi-label Classification (MLC) assigns an instance to one or more non-exclusive classes. A challenge arises when the dataset contains a large proportion of instances with no assigned class, referred to as negative data, which can…

Machine Learning · Computer Science 2025-06-09 Dumindu Tissera , Omar Awadallah , Muhammad Umair Danish , Ayan Sadhu , Katarina Grolinger

Online learning systems have multiple data repositories in the form of transcripts, books and questions. To enable ease of access, such systems organize the content according to a well defined taxonomy of hierarchical nature…

Computation and Language · Computer Science 2022-08-11 Venktesh Viswanathan , Mukesh Mohania , Vikram Goyal

Hierarchical classification is significant for complex tasks by providing multi-granular predictions and encouraging better mistakes. As the label structure decides its performance, many existing approaches attempt to construct an excellent…

Computer Vision and Pattern Recognition · Computer Science 2021-07-05 Xiaoni Li , Yucan Zhou , Yu Zhou , Weiping Wang

Majority voting and averaging are common approaches employed to resolve annotator disagreements and derive single ground truth labels from multiple annotations. However, annotators may systematically disagree with one another, often…

Computation and Language · Computer Science 2021-10-13 Aida Mostafazadeh Davani , Mark Díaz , Vinodkumar Prabhakaran

As a means of human-based computation, crowdsourcing has been widely used to annotate large-scale unlabeled datasets. One of the obvious challenges is how to aggregate these possibly noisy labels provided by a set of heterogeneous…

Machine Learning · Computer Science 2020-10-20 Xuan Wei , Daniel Dajun Zeng , Junming Yin

Despite the recent advances in multi-task learning of dense prediction problems, most methods rely on expensive labelled datasets. In this paper, we present a label efficient approach and look at jointly learning of multiple dense…

Computer Vision and Pattern Recognition · Computer Science 2022-05-05 Wei-Hong Li , Xialei Liu , Hakan Bilen

Time series classification with missing data is a prevalent issue in time series analysis, as temporal data often contain missing values in practical applications. The traditional two-stage approach, which handles imputation and…

Machine Learning · Computer Science 2024-08-13 Pengshuai Yao , Mengna Liu , Xu Cheng , Fan Shi , Huan Li , Xiufeng Liu , Shengyong Chen

Semi-supervised learning (SSL) is a common approach to learning predictive models using not only labeled examples, but also unlabeled examples. While SSL for the simple tasks of classification and regression has received a lot of attention…

Machine Learning · Computer Science 2024-04-02 Jurica Levatić , Michelangelo Ceci , Dragi Kocev , Sašo Džeroski

This paper introduces a novel paradigm to impute missing data that combines a decision tree with an auto-associative neural network (AANN) based model and a principal component analysis-neural network (PCA-NN) based model. For each model,…

Applications · Statistics 2007-09-12 George Ssali , Tshilidzi Marwala

Gene panel selection aims to identify the most informative genomic biomarkers in label-free genomic datasets. Traditional approaches, which rely on domain expertise, embedded machine learning models, or heuristic-based iterative…

Genomics · Quantitative Biology 2025-09-12 Meng Xiao , Weiliang Zhang , Xiaohan Huang , Hengshu Zhu , Min Wu , Xiaoli Li , Yuanchun Zhou

As a very popular multi-label classification method, Classifiers Chain has recently been widely applied to many multi-label classification tasks. However, existing Classifier Chains methods are difficult to model and exploit the underlying…

Artificial Intelligence · Computer Science 2022-04-14 Gao Pengfei , Lai Dedi , Zhao Lijiao , Liang Yue , Ma Yinglong

Traditionally, classifying large hierarchical labels with more than 10000 distinct traces can only be achieved with flatten labels. Although flatten labels is feasible, it misses the hierarchical information in the labels. Hierarchical…

Machine Learning · Computer Science 2018-01-15 Zhenzhou Wu , Sean Saito

Two of the most common tasks in medical imaging are classification and segmentation. Either task requires labeled data annotated by experts, which is scarce and expensive to collect. Annotating data for segmentation is generally considered…

Computer Vision and Pattern Recognition · Computer Science 2020-12-01 Ozan Ciga , Anne L. Martel

As a cross-topic of multi-view learning and multi-label classification, multi-view multi-label classification has gradually gained traction in recent years. The application of multi-view contrastive learning has further facilitated this…

Computer Vision and Pattern Recognition · Computer Science 2025-07-03 Chengliang Liu , Jie Wen , Yong Xu , Bob Zhang , Liqiang Nie , Min Zhang