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Hierarchical text classification (HTC) is essential for various real applications. However, HTC models are challenging to develop because they often require processing a large volume of documents and labels with hierarchical taxonomy.…

Computation and Language · Computer Science 2023-11-08 SangHun Im , Gibaeg Kim , Heung-Seon Oh , Seongung Jo , Donghwan Kim

Hierarchical Text Classification (HTC) is a challenging task where a document can be assigned to multiple hierarchically structured categories within a taxonomy. The majority of prior studies consider HTC as a flat multi-label…

Computation and Language · Computer Science 2022-04-20 Chao Yu , Yi Shen , Yue Mao , Longjun Cai

Hierarchical text classification (HTC) is the task of assigning labels to a text within a structured space organized as a hierarchy. Recent works treat HTC as a conventional multilabel classification problem, therefore evaluating it as…

Computation and Language · Computer Science 2024-10-14 Roman Plaud , Matthieu Labeau , Antoine Saillenfest , Thomas Bonald

Hierarchical text classification (HTC) is a challenging subtask of multi-label classification as the labels form a complex hierarchical structure. Existing dual-encoder methods in HTC achieve weak performance gains with huge memory…

Computation and Language · Computer Science 2023-06-12 He Zhu , Chong Zhang , Junjie Huang , Junran Wu , Ke Xu

Hierarchical Text Classification (HTC) aims to categorize text data based on a structured label hierarchy, resulting in predicted labels forming a sub-hierarchy tree. The semantics of the text should align with the semantics of the labels…

Computation and Language · Computer Science 2024-09-04 Ashish Kumar , Durga Toshniwal

Hierarchical text classification (HTC) is a special sub-task of multi-label classification (MLC) whose taxonomy is constructed as a tree and each sample is assigned with at least one path in the tree. Latest HTC models contain three…

Computation and Language · Computer Science 2024-08-13 Zhijian Chen , Zhonghua Li , Jianxin Yang , Ye Qi

Hierarchical text classification (HTC) assigns documents to multiple levels of a pre-defined taxonomy. Automated patent subject classification represents one of the hardest HTC scenarios because of domain knowledge difficulty and a huge…

Computation and Language · Computer Science 2025-10-09 Lekang Jiang , Wenjun Sun , Stephan Goetz

Hierarchical Text Classification (HTC) is a natural language processing task with the objective to classify text documents into a set of classes from a structured class hierarchy. Many HTC approaches have been proposed which attempt to…

Information Retrieval · Computer Science 2024-12-02 Jaco du Toit , Herman Redelinghuys , Marcel Dunaiski

While existing hierarchical text classification (HTC) methods attempt to capture label hierarchies for model training, they either make local decisions regarding each label or completely ignore the hierarchy information during inference. To…

Information Retrieval · Computer Science 2020-06-19 Yuning Mao , Jingjing Tian , Jiawei Han , Xiang Ren

Assigning a set of labels to a given text is a classification problem with many real-world applications, such as recommender systems. Two separate research streams address this issue. Hierarchical Text Classification (HTC) focuses on…

Computation and Language · Computer Science 2026-01-27 Nerijus Bertalis , Paul Granse , Ferhat Gül , Florian Hauss , Leon Menkel , David Schüler , Tom Speier , Lukas Galke , Ansgar Scherp

Efficient distributed numerical word representation models (word embeddings) combined with modern machine learning algorithms have recently yielded considerable improvement on automatic document classification tasks. However, the…

Computation and Language · Computer Science 2018-09-07 Roger A. Stein , Patricia A. Jaques , Joao F. Valiati

Text classification has become increasingly challenging due to the continuous refinement of classification label granularity and the expansion of classification label scale. To address that, some research has been applied onto strategies…

Neural and Evolutionary Computing · Computer Science 2020-08-27 Jingpeng Zhao , Yinglong Ma

Hierarchical text classification (HTC) is a natural language processing task which has the objective of categorising text documents into a set of classes from a predefined structured class hierarchy. Recent HTC approaches use various…

Computation and Language · Computer Science 2025-07-23 Jaco du Toit , Marcel Dunaiski

Hierarchical Text Classification (HTC) involves assigning documents to labels organized within a taxonomy. Most previous research on HTC has focused on supervised methods. However, in real-world scenarios, employing supervised HTC can be…

Computation and Language · Computer Science 2026-05-18 Qianbo Zang , Christophe Zgrzendek , Igor Tchappi , Afshin Khadangi , Johannes Sedlmeir

Categorizing documents into a given label hierarchy is intuitively appealing due to the ubiquity of hierarchical topic structures in massive text corpora. Although related studies have achieved satisfying performance in fully supervised…

Computation and Language · Computer Science 2023-10-24 Yu Zhang , Xiusi Chen , Yu Meng , Jiawei Han

Hierarchical multi-label text classification (HMTC) has been gaining popularity in recent years thanks to its applicability to a plethora of real-world applications. The existing HMTC algorithms largely focus on the design of classifiers,…

Computation and Language · Computer Science 2021-04-13 Xinyi Zhang , Jiahao Xu , Charlie Soh , Lihui Chen

Hierarchical text classification (HTC) is a challenging subtask of multi-label classification due to its complex taxonomic structure. Nearly all recent HTC works focus on how the labels are structured but ignore the sub-structure of…

Computation and Language · Computer Science 2024-04-01 Zihan Wang , Peiyi Wang , Houfeng Wang

Hierarchical text classification is a challenging subtask of multi-label classification due to its complex label hierarchy. Existing methods encode text and label hierarchy separately and mix their representations for classification, where…

Computation and Language · Computer Science 2022-03-24 Zihan Wang , Peiyi Wang , Lianzhe Huang , Xin Sun , Houfeng Wang

The current state-of-the-art model HiAGM for hierarchical text classification has two limitations. First, it correlates each text sample with all labels in the dataset which contains irrelevant information. Second, it does not consider any…

Computation and Language · Computer Science 2021-04-13 Zhongfen Deng , Hao Peng , Dongxiao He , Jianxin Li , Philip S. Yu

The key to the text classification task is language representation and important information extraction, and there are many related studies. In recent years, the research on graph neural network (GNN) in text classification has gradually…

Computation and Language · Computer Science 2022-09-16 Shuai Hua , Xinxin Li , Yunpeng Jing , Qunfeng Liu
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