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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

Mental health challenges and cyberbullying are increasingly prevalent in digital spaces, necessitating scalable and interpretable detection systems. This paper introduces a unified multiclass classification framework for detecting ten…

计算与语言 · 计算机科学 2026-03-26 Edward Ajayi , Martha Kachweka , Mawuli Deku , Emily Aiken

Cluster analysis is a field of data analysis that extracts underlying patterns in data. One application of cluster analysis is in text-mining, the analysis of large collections of text to find similarities between documents. We used a…

机器学习 · 统计学 2014-08-26 Daniel Godfrey , Caley Johns , Carl Meyer , Shaina Race , Carol Sadek

In recent work, we identified and studied a small cohort of Twitter users whose pregnancies with birth defect outcomes could be observed via their publicly available tweets. Exploiting social media's large-scale potential to complement the…

计算与语言 · 计算机科学 2019-10-03 Ari Z. Klein , Abeed Sarker , Davy Weissenbacher , Graciela Gonzalez-Hernandez

Understanding the real-world effects of recreational drug use remains a critical challenge in public health and biomedical research, especially as traditional surveillance systems often underrepresent user experiences. In this study, we…

Technologies for abusive language detection are being developed and applied with little consideration of their potential biases. We examine racial bias in five different sets of Twitter data annotated for hate speech and abusive language.…

计算与语言 · 计算机科学 2019-05-30 Thomas Davidson , Debasmita Bhattacharya , Ingmar Weber

To analyse large numbers of texts, social science researchers are increasingly confronting the challenge of text classification. When manual labeling is not possible and researchers have to find automatized ways to classify texts, computer…

计算与语言 · 计算机科学 2023-10-10 Karina Shyrokykh , Maksym Girnyk , Lisa Dellmuth

Domestic Violence against women is now recognized to be a serious and widespread problem worldwide. Domestic Violence and Abuse is at the root of so many issues in society and considered as the societal tabooed topic. Fortunately, with the…

计算机与社会 · 计算机科学 2018-04-11 Sudha Subramani , Huy Quan Vu , Hua Wang

The advent of social media in recent years has fed into some highly undesirable phenomena such as proliferation of offensive language, hate speech, sexist remarks, etc. on the Internet. In light of this, there have been several efforts to…

计算与语言 · 计算机科学 2018-09-05 Pushkar Mishra , Helen Yannakoudakis , Ekaterina Shutova

Unsupervised representation learning for tweets is an important research field which helps in solving several business applications such as sentiment analysis, hashtag prediction, paraphrase detection and microblog ranking. A good tweet…

计算与语言 · 计算机科学 2017-06-30 Ganesh J

In recent days, the amount of Cyber Security text data shared via social media resources mainly Twitter has increased. An accurate analysis of this data can help to develop cyber threat situational awareness framework for a cyber threat.…

计算与语言 · 计算机科学 2020-04-02 Simran K , Prathiksha Balakrishna , Vinayakumar R , Soman KP

Social media data provides propitious opportunities for public health research. However, studies suggest that disparities may exist in the representation of certain populations (e.g., people of lower socioeconomic status). To quantify and…

计算机与社会 · 计算机科学 2017-11-07 Nina Cesare , Christan Grant , Jared B. Hawkins , John S. Brownstein , Elaine O. Nsoesie

Public figures receive a disproportionate amount of abuse on social media, impacting their active participation in public life. Automated systems can identify abuse at scale but labelling training data is expensive, complex and potentially…

The global increase in mental illness requires innovative detection methods for early intervention. Social media provides a valuable platform to identify mental illness through user-generated content. This systematic review examines machine…

机器学习 · 计算机科学 2025-02-18 Yuchen Cao , Jianglai Dai , Zhongyan Wang , Yeyubei Zhang , Xiaorui Shen , Yunchong Liu , Yexin Tian

Social media channels, such as Facebook, Twitter, and Instagram, have altered our world forever. People are now increasingly connected than ever and reveal a sort of digital persona. Although social media certainly has several remarkable…

社会与信息网络 · 计算机科学 2020-08-26 Hatoon S. AlSagri , Mourad Ykhlef

We report the first, to the best of our knowledge, hand-in-hand collaboration between human rights activists and machine learners, leveraging crowd-sourcing to study online abuse against women on Twitter. On a technical front, we carefully…

社会与信息网络 · 计算机科学 2019-02-11 Laure Delisle , Alfredo Kalaitzis , Krzysztof Majewski , Archy de Berker , Milena Marin , Julien Cornebise

Twitter is one of the most popular social networks attracting millions of users, while a considerable proportion of online discourse is captured. It provides a simple usage framework with short messages and an efficient application…

社会与信息网络 · 计算机科学 2023-05-29 Alexander Shevtsov , Christos Tzagkarakis , Despoina Antonakaki , Sotiris Ioannidis

Semantic sentence embeddings are usually supervisedly built minimizing distances between pairs of embeddings of sentences labelled as semantically similar by annotators. Since big labelled datasets are rare, in particular for non-English…

计算与语言 · 计算机科学 2021-10-06 Marco Di Giovanni , Marco Brambilla

The rise of online aggression on social media is evolving into a major point of concern. Several machine and deep learning approaches have been proposed recently for detecting various types of aggressive behavior. However, social media are…

社会与信息网络 · 计算机科学 2020-11-10 Herodotos Herodotou , Despoina Chatzakou , Nicolas Kourtellis

Nowadays, with the rise of Internet access and mobile devices around the globe, more people are using social networks for collaboration and receiving real-time information. Twitter, the microblogging that is becoming a critical source of…

密码学与安全 · 计算机科学 2020-12-02 Sepideh Bazzaz Abkenar , Mostafa Haghi Kashani , Mohammad Akbari , Ebrahim Mahdipour