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With the current shift in the mass media landscape from journalistic rigor to social media, personalized social media is becoming the new norm. Although the digitalization progress of the media brings many advantages, it also increases the…

计算与语言 · 计算机科学 2023-04-18 Ciprian-Octavian Truică , Elena-Simona Apostol

Matching images and sentences demands a fine understanding of both modalities. In this paper, we propose a new system to discriminatively embed the image and text to a shared visual-textual space. In this field, most existing works apply…

计算机视觉与模式识别 · 计算机科学 2021-07-28 Zhedong Zheng , Liang Zheng , Michael Garrett , Yi Yang , Mingliang Xu , Yi-Dong Shen

We propose an unsupervised keyphrase extraction model that encodes topical information within a multipartite graph structure. Our model represents keyphrase candidates and topics in a single graph and exploits their mutually reinforcing…

信息检索 · 计算机科学 2018-04-17 Florian Boudin

Recent advances in NLP have improved our ability to understand the nuanced worldviews of online communities. Existing research focused on probing ideological stances treats liberals and conservatives as separate groups. However, this fails…

计算与语言 · 计算机科学 2024-02-05 Zihao He , Ashwin Rao , Siyi Guo , Negar Mokhberian , Kristina Lerman

In the last few years, neural networks have been intensively used to develop meaningful distributed representations of words and contexts around them. When these representations, also known as "embeddings", are learned from unsupervised…

计算与语言 · 计算机科学 2019-08-07 Giuseppe Marra , Andrea Zugarini , Stefano Melacci , Marco Maggini

Media bias can significantly impact the formation and development of opinions and sentiments in a population. It is thus important to study the emergence and development of partisan media and political polarization. However, it is…

物理与社会 · 物理学 2022-12-05 Zehan Chao , Denali Molitor , Deanna Needell , Mason A. Porter

This paper considers the problem of automatically characterizing overall attitudes and biases that may be associated with emerging information operations via artificial intelligence. Accurate analysis of these emerging topics usually…

计算机与社会 · 计算机科学 2020-12-07 Autumn Toney , Akshat Pandey , Wei Guo , David Broniatowski , Aylin Caliskan

The problem of estimating event truths from conflicting agent opinions in a social network is investigated. An autoencoder learns the complex relationships between event truths, agent reliabilities and agent observations. A Bayesian network…

机器学习 · 计算机科学 2021-01-26 Jielong Yang , Wee Peng Tay

Unsupervised learning has been an attractive method for easily deriving meaningful data representations from vast amounts of unlabeled data. These representations, or embeddings, often yield superior results in many tasks, whether used…

计算与语言 · 计算机科学 2018-11-02 Shao-Yen Tseng , Brian Baucom , Panayiotis Georgiou

Modern models for common NLP tasks often employ machine learning techniques and train on journalistic, social media, or other culturally-derived text. These have recently been scrutinized for racial and gender biases, rooting from inherent…

计算与语言 · 计算机科学 2026-01-27 Scott Friedman , Sonja Schmer-Galunder , Anthony Chen , Jeffrey Rye

Contextual word embeddings such as BERT have achieved state of the art performance in numerous NLP tasks. Since they are optimized to capture the statistical properties of training data, they tend to pick up on and amplify social…

计算与语言 · 计算机科学 2019-06-19 Keita Kurita , Nidhi Vyas , Ayush Pareek , Alan W Black , Yulia Tsvetkov

Analyzing ideology and polarization is of critical importance in advancing our grasp of modern politics. Recent research has made great strides towards understanding the ideological bias (i.e., stance) of news media along the left-right…

计算与语言 · 计算机科学 2022-05-05 Barea Sinno , Bernardo Oviedo , Katherine Atwell , Malihe Alikhani , Junyi Jessy Li

As large language models (LLMs) become increasingly embedded in civic, educational, and political information environments, concerns about their potential political bias have grown. Prior research often evaluates such bias through simulated…

计算机与社会 · 计算机科学 2026-03-20 Tai-Quan Peng , Kaiqi Yang , Sanguk Lee , Hang Li , Yucheng Chu , Yuping Lin , Hui Liu

This paper presents a new semi-supervised framework with convolutional neural networks (CNNs) for text categorization. Unlike the previous approaches that rely on word embeddings, our method learns embeddings of small text regions from…

机器学习 · 统计学 2015-11-03 Rie Johnson , Tong Zhang

Unsupervised learning allows us to leverage unlabelled data, which has become abundantly available, and to create embeddings that are usable on a variety of downstream tasks. However, the typical lack of interpretability of unsupervised…

机器学习 · 计算机科学 2023-09-29 Gregory Scafarto , Madalina Ciortan , Simon Tihon , Quentin Ferre

Recent empirical works have successfully used unlabeled data to learn feature representations that are broadly useful in downstream classification tasks. Several of these methods are reminiscent of the well-known word2vec embedding…

机器学习 · 计算机科学 2019-02-26 Sanjeev Arora , Hrishikesh Khandeparkar , Mikhail Khodak , Orestis Plevrakis , Nikunj Saunshi

Contextualized word embeddings have been replacing standard embeddings as the representational knowledge source of choice in NLP systems. Since a variety of biases have previously been found in standard word embeddings, it is crucial to…

计算与语言 · 计算机科学 2020-10-29 Marion Bartl , Malvina Nissim , Albert Gatt

Unsupervised discovery of stories with correlated news articles in real-time helps people digest massive news streams without expensive human annotations. A common approach of the existing studies for unsupervised online story discovery is…

信息检索 · 计算机科学 2023-05-05 Susik Yoon , Dongha Lee , Yunyi Zhang , Jiawei Han

Decision making algorithms, in practice, are often trained on data that exhibits a variety of biases. Decision-makers often aim to take decisions based on some ground-truth target that is assumed or expected to be unbiased, i.e., equally…

机器学习 · 统计学 2022-07-05 Miriam Rateike , Ayan Majumdar , Olga Mineeva , Krishna P. Gummadi , Isabel Valera

Developing machine learning models to characterize political polarization on online social media presents significant challenges. These challenges mainly stem from various factors such as the lack of annotated data, presence of noise in…

社会与信息网络 · 计算机科学 2023-11-22 Sadia Kamal , Brenner Little , Jade Gullic , Trevor Harms , Kristin Olofsson , Arunkumar Bagavathi