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Instead of mining coherent topics from a given text corpus in a completely unsupervised manner, seed-guided topic discovery methods leverage user-provided seed words to extract distinctive and coherent topics so that the mined topics can…

Computation and Language · Computer Science 2023-01-12 Yu Zhang , Yunyi Zhang , Martin Michalski , Yucheng Jiang , Yu Meng , Jiawei Han

GitHub has become an important platform for code sharing and scientific exchange. With the massive number of repositories available, there is a pressing need for topic-based search. Even though the topic label functionality has been…

Machine Learning · Computer Science 2023-10-24 Yu Zhang , Frank F. Xu , Sha Li , Yu Meng , Xuan Wang , Qi Li , Jiawei Han

Hierarchical text classification (HTC) is a challenging subtask of multi-label classification due to its complex label hierarchy. Recently, the pretrained language models (PLM)have been widely adopted in HTC through a fine-tuning paradigm.…

Computation and Language · Computer Science 2022-10-11 Zihan Wang , Peiyi Wang , Tianyu Liu , Binghuai Lin , Yunbo Cao , Zhifang Sui , Houfeng Wang

Conformal prediction (CP) is a powerful framework for quantifying uncertainty in machine learning models, offering reliable predictions with finite-sample coverage guarantees. When applied to classification, CP produces a prediction set of…

Machine Learning · Computer Science 2025-08-20 Floris den Hengst , Inès Blin , Majid Mohammadi , Syed Ihtesham Hussain Shah , Taraneh Younesian

Topic detection is a complex process and depends on language because it somehow needs to analyze text. There have been few studies on topic detection in Persian, and the existing algorithms are not remarkable. Therefore, we aimed to study…

Computation and Language · Computer Science 2024-03-18 Elnaz Zafarani-Moattar , Mohammad Reza Kangavari , Amir Masoud Rahmani

A high degree of topical diversity is often considered to be an important characteristic of interesting text documents. A recent proposal for measuring topical diversity identifies three distributions for assessing the diversity of…

Computation and Language · Computer Science 2018-10-15 Hosein Azarbonyad , Mostafa Dehghani , Tom Kenter , Maarten Marx , Jaap Kamps , Maarten de Rijke

Hierarchical topic modeling aims to discover latent topics from a corpus and organize them into a hierarchy to understand documents with desirable semantic granularity. However, existing work struggles with producing topic hierarchies of…

Computation and Language · Computer Science 2024-02-02 Xiaobao Wu , Fengjun Pan , Thong Nguyen , Yichao Feng , Chaoqun Liu , Cong-Duy Nguyen , Anh Tuan Luu

Financing high-tech projects always entails a great deal of risk. The lack of a systematic method to pinpoint the risk of such projects has been recognized as one of the most salient barriers for evaluating them. So, in order to develop a…

Neural and Evolutionary Computing · Computer Science 2018-09-17 Hossein Sabzian , Ehsan Kamrani , Seyyed Mostafa Seyyed Hashemi

Expert finding is an important task in both industry and academia. It is challenging to rank candidates with appropriate expertise for various queries. In addition, different types of objects interact with one another, which naturally forms…

Information Retrieval · Computer Science 2018-03-12 Huan Gui , Qi Zhu , Liyuan Liu , Aston Zhang , Jiawei Han

Hierarchical Text Categorization (HTC) is becoming increasingly important with the rapidly growing amount of text data available in the World Wide Web. Among the different strategies proposed to cope with HTC, the Local Classifier per Node…

Information Retrieval · Computer Science 2012-06-05 Nima Hatami , Camelia Chira , Giuliano Armano

The detection of nuclei and cells in histology images is of great value in both clinical practice and pathological studies. However, multiple reasons such as morphological variations of nuclei or cells make it a challenging task where…

Computer Vision and Pattern Recognition · Computer Science 2021-06-28 Yibao Sun , Xingru Huang , Huiyu Zhou , Qianni Zhang

Artificial neural nets can represent and classify many types of data but are often tailored to particular applications -- e.g., for "fair" or "hierarchical" classification. Once an architecture has been selected, it is often difficult for…

Machine Learning · Computer Science 2022-05-30 Mycal Tucker , Julie Shah

Human evaluation plays a crucial role in Natural Language Processing (NLP) as it assesses the quality and relevance of developed systems, thereby facilitating their enhancement. However, the absence of widely accepted human evaluation…

Computation and Language · Computer Science 2023-10-13 Iva Bojic , Jessica Chen , Si Yuan Chang , Qi Chwen Ong , Shafiq Joty , Josip Car

Hierarchical multi-label text classification aims to classify the input text into multiple labels, among which the labels are structured and hierarchical. It is a vital task in many real world applications, e.g. scientific literature…

Computation and Language · Computer Science 2023-08-01 Rundong Liu , Wenhan Liang , Weijun Luo , Yuxiang Song , He Zhang , Ruohua Xu , Yunfeng Li , Ming Liu

With the explosive growth of new graduates with research degrees every year, unprecedented challenges arise for early-career researchers to find a job at a suitable institution. This study aims to understand the behavior of academic job…

Social and Information Networks · Computer Science 2022-02-17 Xiangtai Chen , Tao Tang , Jing Ren , Ivan Lee , Honglong Chen , Feng Xia

Hierarchical multi-label academic text classification (HMTC) is to assign academic texts into a hierarchically structured labeling system. We propose an attention-based hierarchical multi-label classification algorithm of academic texts…

Computation and Language · Computer Science 2022-03-22 Yue Wang , Yawen Li , Ang Li

With the great success of networks, it witnesses the increasing demand for the interpretation of the internal network mechanism, especially for the net decision-making logic. To tackle the challenge, the Concept-harmonized HierArchical…

Computer Vision and Pattern Recognition · Computer Science 2020-02-06 Dan Wang , Xinrui Cui , Z. Jane Wang

In this article we propose a novel ranking algorithm, referred to as HierLPR, for the multi-label classification problem when the candidate labels follow a known hierarchical structure. HierLPR is motivated by a new metric called eAUC that…

Machine Learning · Statistics 2018-10-19 Christine Ho , Yuting Ye , Ci-Ren Jiang , Wayne Tai Lee , Haiyan Huang

Using reviews to learn user and item representations is important for recommender system. Current review based methods can be divided into two categories: (1) the Convolution Neural Network (CNN) based models that extract n-gram features…

Information Retrieval · Computer Science 2020-11-30 Hansi Zeng , Qingyao Ai

Goal recognition aims to infer an agent's goal from observations of its behaviour. In realistic settings, recognition can benefit from exploiting hierarchical task structure and reasoning under uncertainty. Planning-based goal recognition…

Symbolic Computation · Computer Science 2026-04-27 Chenyuan Zhang , Katherine Ip , Hamid Rezatofighi , Buser Say , Mor Vered