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With social media communities increasingly becoming places where suicidal individuals post and congregate, natural language processing presents an exciting avenue for the development of automated suicide risk assessment systems. However,…

计算与语言 · 计算机科学 2024-12-17 Max Lovitt , Haotian Ma , Song Wang , Yifan Peng

As social media continues to grow rapidly, the prevalence of harassment on these platforms has also increased. This has piqued the interest of researchers in the field of fake detection. Social media data, often forms complex graphs with…

机器学习 · 计算机科学 2025-02-11 Jinus Bordbar , Saman Ardalan , Mohammadreza Mohammadrezaie , Zahra Ghasemi

As open-ended human-chatbot interaction becomes commonplace, sensitive content detection gains importance. In this work, we propose a two stage semi-supervised approach to bootstrap large-scale data for automatic sensitive language…

计算与语言 · 计算机科学 2018-12-03 Chandra Khatri , Behnam Hedayatnia , Rahul Goel , Anushree Venkatesh , Raefer Gabriel , Arindam Mandal

During crisis events, people often use social media platforms such as Twitter to disseminate information about the situation, warnings, advice, and support. Emergency relief organizations leverage such information to acquire timely crisis…

计算与语言 · 计算机科学 2023-10-24 Henry Peng Zou , Yue Zhou , Weizhi Zhang , Cornelia Caragea

Digital dehumanization, although a critical issue, remains largely overlooked within the field of computational linguistics and Natural Language Processing. The prevailing approach in current research concentrating primarily on a single…

计算与语言 · 计算机科学 2025-10-22 Dennis Assenmacher , Paloma Piot , Katarina Laken , David Jurgens , Claudia Wagner

We argue that a form of the valuable information provided by the auxiliary information is its implied data clustering information. For instance, considering hashtags as auxiliary information, we can hypothesize that an Instagram image will…

The ubiquity of social media has transformed online interactions among individuals. Despite positive effects, it has also allowed anti-social elements to unite in alternative social media environments (eg. Gab.com) like never before.…

社会与信息网络 · 计算机科学 2020-07-28 Michael Ridenhour , Arunkumar Bagavathi , Elaheh Raisi , Siddharth Krishnan

With the rapid growth of social media usage, a common trend has emerged where users often make sarcastic comments on posts. While sarcasm can sometimes be harmless, it can blur the line with cyberbullying, especially when used in negative…

社会与信息网络 · 计算机科学 2024-11-01 Pinky Pamecha , Chaitya Shah , Divyam Jain , Kashish Gandhi , Kiran Bhowmick , Meera Narvekar

Non-Bayesian social learning theory provides a framework for distributed inference of a group of agents interacting over a social network by sequentially communicating and updating beliefs about the unknown state of the world through…

统计方法学 · 统计学 2019-10-25 James Z. Hare , Cesar Uribe , Lance Kaplan , Ali Jadbabaie

The rise of social media platforms has led to an increase in cyber-aggressive behavior, encompassing a broad spectrum of hostile behavior, including cyberbullying, online harassment, and the dissemination of offensive and hate speech. These…

计算与语言 · 计算机科学 2024-12-31 Swapnil Mane , Suman Kundu , Rajesh Sharma

Unsupervised image segmentation aims at assigning the pixels with similar feature into a same cluster without annotation, which is an important task in computer vision. Due to lack of prior knowledge, most of existing model usually need to…

计算机视觉与模式识别 · 计算机科学 2020-12-17 Zhichao Wu , Lei Guo , Hao Zhang , Dan Xu

Unsupervised learning has always been appealing to machine learning researchers and practitioners, allowing them to avoid an expensive and complicated process of labeling the data. However, unsupervised learning of complex data is…

计算机视觉与模式识别 · 计算机科学 2020-11-10 Evgenii Zheltonozhskii , Chaim Baskin , Alex M. Bronstein , Avi Mendelson

Crime in the 21st century is split into a virtual and real world. However, the former has become a global menace to people's well-being and security in the latter. The challenges it presents must be faced with unified global cooperation,…

计算机视觉与模式识别 · 计算机科学 2025-11-25 Pedro H. V. Valois , João Macedo , Leo S. F. Ribeiro , Jefersson A. dos Santos , Sandra Avila

Recent recollected data suggests that it is possible to automatically detect events that may negatively affect the most vulnerable parts of our society, by using any communication technology like social networks or messaging applications.…

Despite their prevalence in society, social biases are difficult to identify, primarily because human judgements in this domain can be unreliable. We take an unsupervised approach to identifying gender bias against women at a comment level…

计算与语言 · 计算机科学 2020-10-07 Anjalie Field , Yulia Tsvetkov

Document layout analysis is a key area in document research, involving techniques like text mining and visual analysis. Despite various methods developed to tackle layout analysis, a critical but frequently overlooked problem is the…

计算机视觉与模式识别 · 计算机科学 2024-06-11 Talha Uddin Sheikh , Tahira Shehzadi , Khurram Azeem Hashmi , Didier Stricker , Muhammad Zeshan Afzal

Social media platforms like Twitter, Facebook, and Instagram have facilitated the spread of misinformation, necessitating automated detection systems. This systematic review evaluates 36 studies that apply machine learning (ML) and deep…

机器学习 · 计算机科学 2025-06-24 Yunchong Liu , Xiaorui Shen , Yeyubei Zhang , Zhongyan Wang , Yexin Tian , Jianglai Dai , Yuchen Cao

Limited labeled data is becoming the largest bottleneck for supervised learning systems. This is especially the case for many real-world tasks where large scale annotated examples are either too expensive to acquire or unavailable due to…

社会与信息网络 · 计算机科学 2020-05-28 Kai Shu , Ahmed Hassan Awadallah , Susan Dumais , Huan Liu

Research on social bot detection plays a crucial role in maintaining the order and reliability of information dissemination while increasing trust in social interactions. The current mainstream social bot detection models rely on black-box…

社会与信息网络 · 计算机科学 2024-05-07 Hao Peng , Jingyun Zhang , Xiang Huang , Zhifeng Hao , Angsheng Li , Zhengtao Yu , Philip S. Yu

In this paper, we demonstrate how the state-of-the-art machine learning and text mining techniques can be used to build effective social media-based substance use detection systems. Since a substance use ground truth is difficult to obtain…

计算与语言 · 计算机科学 2017-06-02 Tao Ding , Warren K. Bickel , Shimei Pan