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Related papers: BotSSCL: Social Bot Detection with Self-Supervised…

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Contrastive learning is among the most successful methods for visual representation learning, and its performance can be further improved by jointly performing clustering on the learned representations. However, existing methods for joint…

Computer Vision and Pattern Recognition · Computer Science 2022-09-16 Shunjie-Fabian Zheng , JaeEun Nam , Emilio Dorigatti , Bernd Bischl , Shekoofeh Azizi , Mina Rezaei

The prevalence of abusive language on different online platforms has been a major concern that raises the need for automated cross-platform abusive language detection. However, prior works focus on concatenating data from multiple…

Computation and Language · Computer Science 2022-11-15 Md Tawkat Islam Khondaker , Muhammad Abdul-Mageed , Laks V. S. Lakshmanan

Self-Supervised Learning (SSL) is a paradigm that leverages unlabeled data for model training. Empirical studies show that SSL can achieve promising performance in distribution shift scenarios, where the downstream and training…

Machine Learning · Computer Science 2023-12-13 Xuyang Zhao , Tianqi Du , Yisen Wang , Jun Yao , Weiran Huang

Self-Supervised Learning (SSL) is a new paradigm for learning discriminative representations without labelled data and has reached comparable or even state-of-the-art results in comparison to supervised counterparts. Contrastive Learning…

Computer Vision and Pattern Recognition · Computer Science 2022-08-05 Shohreh Deldari , Hao Xue , Aaqib Saeed , Daniel V. Smith , Flora D. Salim

Contrastive Self-supervised Learning (CSL) is a practical solution that learns meaningful visual representations from massive data in an unsupervised approach. The ordinary CSL embeds the features extracted from neural networks onto…

Computer Vision and Pattern Recognition · Computer Science 2022-08-19 Shentong Mo , Zhun Sun , Chao Li

Learning socially-aware motion representations is at the core of recent advances in multi-agent problems, such as human motion forecasting and robot navigation in crowds. Despite promising progress, existing representations learned with…

Machine Learning · Computer Science 2021-08-23 Yuejiang Liu , Qi Yan , Alexandre Alahi

This paper presents simple and efficient methods to mitigate sampling bias in active learning while achieving state-of-the-art accuracy and model robustness. We introduce supervised contrastive active learning by leveraging the contrastive…

Machine Learning · Computer Science 2021-09-15 Ranganath Krishnan , Alok Sinha , Nilesh Ahuja , Mahesh Subedar , Omesh Tickoo , Ravi Iyer

Emotion recognition in conversations (ERC) is a rapidly evolving task within the natural language processing community, which aims to detect the emotions expressed by speakers during a conversation. Recently, a growing number of ERC methods…

Computation and Language · Computer Science 2023-12-12 Tao Shi , Xiao Liang , Yaoyuan Liang , Xinyi Tong , Shao-Lun Huang

Personalized fall detection models can significantly improve accuracy by adapting to individual motion patterns, yet their effectiveness is often limited by the scarcity of real-world fall data and the dominance of non-fall feedback…

Machine Learning · Computer Science 2026-03-19 Awatif Yasmin , Tarek Mahmud , Sana Alamgeer , Anne H. H. Ngu

Text analysis in the social sciences often involves using specialized dictionaries to reason with abstract concepts, such as perceptions about the economy or abuse on social media. These dictionaries allow researchers to impart domain…

Computation and Language · Computer Science 2022-10-28 Patrick Y. Wu , Richard Bonneau , Joshua A. Tucker , Jonathan Nagler

Driven by large language models (LLMs), social bot can autonomously engage in local interactions, whose human-like behaviors enable them to evade social bot detection. However, while these botnets exhibit realistic local social…

Social and Information Networks · Computer Science 2026-05-14 Haoran Bu , Litian Zhang , Chuxuan Zhang , Zhanyuan Liu , Hui Pang , Xi Zhang

Network intrusion detection, a well-explored cybersecurity field, has predominantly relied on supervised learning algorithms in the past two decades. However, their limitations in detecting only known anomalies prompt the exploration of…

Cryptography and Security · Computer Science 2025-10-06 Hamed Fard , Tobias Schalau , Gerhard Wunder

Deep networks have strong capacities of embedding data into latent representations and finishing following tasks. However, the capacities largely come from high-quality annotated labels, which are expensive to collect. Noisy labels are more…

Computer Vision and Pattern Recognition · Computer Science 2022-03-09 Shikun Li , Xiaobo Xia , Shiming Ge , Tongliang Liu

Social bots have become widely known by users of social platforms. To prevent social bots from spreading harmful speech, many novel bot detections are proposed. However, with the evolution of social bots, detection methods struggle to give…

Social and Information Networks · Computer Science 2025-03-07 Tao Yang , Yang Hu , Feihong Lu , Ziwei Zhang , Qingyun Sun , Jianxin Li

Efficiently capturing the complex spatiotemporal representations from large-scale unlabeled traffic data remains to be a challenging task. In considering of the dilemma, this work employs the advanced contrastive learning and proposes a…

Machine Learning · Computer Science 2023-12-19 Lincan Li , Kaixiang Yang , Fengji Luo , Jichao Bi

Social bots represent a new generation of bots that make use of online social networks (OSNs) as a command and control (C\&C) channel. Malicious social bots were responsible for launching large-scale spam campaigns, promoting low-cap…

Cryptography and Security · Computer Science 2019-05-09 Majd Latah

Identifying social bots has become a critical challenge due to their significant influence on social media ecosystems. Despite advancements in detection methods, most topology-based approaches insufficiently account for the heterogeneity of…

Cryptography and Security · Computer Science 2025-12-30 Yijun Ran , Jingjing Xiao , Xiao-Ke Xu

Contrastive learning applied to self-supervised representation learning has seen a resurgence in recent years, leading to state of the art performance in the unsupervised training of deep image models. Modern batch contrastive approaches…

Machine Learning · Computer Science 2021-03-12 Prannay Khosla , Piotr Teterwak , Chen Wang , Aaron Sarna , Yonglong Tian , Phillip Isola , Aaron Maschinot , Ce Liu , Dilip Krishnan

Network intrusion detection remains a critical challenge in cybersecurity. While supervised machine learning models achieve state-of-the-art performance, their reliance on large labelled datasets makes them impractical for many real-world…

Machine Learning · Computer Science 2025-09-09 Jack Wilkie , Hanan Hindy , Christos Tachtatzis , Robert Atkinson

Semi-supervised learning (SSL) provides a powerful framework for leveraging unlabeled data when labels are limited or expensive to obtain. SSL algorithms based on deep neural networks have recently proven successful on standard benchmark…

Machine Learning · Computer Science 2019-05-28 Jiaxing Wang , Yin Zheng , Xiaoshuang Chen , Junzhou Huang , Jian Cheng