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The proliferation of misleading information in everyday access media outlets such as social media feeds, news blogs, and online newspapers have made it challenging to identify trustworthy news sources, thus increasing the need for…

Computation and Language · Computer Science 2017-08-24 Verónica Pérez-Rosas , Bennett Kleinberg , Alexandra Lefevre , Rada Mihalcea

The online spreading of fake news is a major issue threatening entire societies. Much of this spreading is enabled by new media formats, namely social networks and online media sites. Researchers and practitioners have been trying to answer…

Human-Computer Interaction · Computer Science 2022-04-28 Jakub Simko , Patrik Racsko , Matus Tomlein , Martin Hanakova , Robert Moro , Maria Bielikova

Online reputation systems are commonly used by e-commerce providers nowadays. In order to generate an objective ranking of online items' quality according to users' ratings, many sophisticated algorithms have been proposed in the…

Information Retrieval · Computer Science 2014-11-19 Hao Liao , An Zeng , Yi-Cheng Zhang

Review helpfulness serves as focal point in understanding customers' purchase decision-making process on online retailer platforms. An overwhelming majority of previous works find longer reviews to be more helpful than short reviews. In…

Computation and Language · Computer Science 2019-09-27 Bernhard Lutz , Nicolas Pröllochs , Dirk Neumann

The ongoing rapid development of the e-commercial and interest-base websites make it more pressing to evaluate objects' accurate quality before recommendation by employing an effective reputation system. The objects' quality are often…

Physics and Society · Physics 2018-07-23 Leilei Wu , Zhuoming Ren , Xiao-Long Ren , Jianlin Zhang , Linyuan Lü

Social networks offer a ready channel for fake and misleading news to spread and exert influence. This paper examines the performance of different reputation algorithms when applied to a large and statistically significant portion of the…

Social and Information Networks · Computer Science 2018-03-07 Luca de Alfaro , Massimo Di Pierro , Rakshit Agrawal , Eugenio Tacchini , Gabriele Ballarin , Marco L. Della Vedova , Stefano Moret

In this paper, we tackle the real-world problem of predicting Yelp star-review rating based on business features (such as images, descriptions), user features (average previous ratings), and, of particular interest, network properties…

Machine Learning · Computer Science 2017-12-13 Luis Perez

With the development of social networks, fake news for various commercial and political purposes has been appearing in large numbers and gotten widespread in the online world. With deceptive words, people can get infected by the fake news…

Computation and Language · Computer Science 2023-01-16 Yang Yang , Lei Zheng , Jiawei Zhang , Qingcai Cui , Zhoujun Li , Philip S. Yu

In this paper, we uncover the essential features of websites that allow intelligent models to distinguish between phishing and legitimate sites. Phishing websites are those that are made with a similar user interface and a near similar…

Social and Information Networks · Computer Science 2022-05-09 Arash Negahdari Kia , Finbarr Murphy , Zahra Dehghani Mohammadabadi , Parisa Shamsi

Massive dissemination of fake news and its potential to erode democracy has increased the demand for accurate fake news detection. Recent advancements in this area have proposed novel techniques that aim to detect fake news by exploring how…

Computation and Language · Computer Science 2020-09-18 Xinyi Zhou , Atishay Jain , Vir V. Phoha , Reza Zafarani

Media news are making a large part of public opinion and, therefore, must not be fake. News on web sites, blogs, and social media must be analyzed before being published. In this paper, we present linguistic characteristics of media news…

Computation and Language · Computer Science 2022-11-29 Sandhya Aneja , Nagender Aneja , Ponnurangam Kumaraguru

The majority of online reviews consist of plain-text feedback together with a single numeric score. However, there are multiple dimensions to products and opinions, and understanding the `aspects' that contribute to users' ratings may help…

Computation and Language · Computer Science 2012-11-01 Julian McAuley , Jure Leskovec , Dan Jurafsky

Insurance fraud occurs when policyholders file claims that are exaggerated or based on intentional damages. This contribution develops a fraud detection strategy by extracting insightful information from the social network of a claim.…

Social and Information Networks · Computer Science 2020-09-18 María Óskarsdóttir , Waqas Ahmed , Katrien Antonio , Bart Baesens , Rémi Dendievel , Tom Donas , Tom Reynkens

The ease of spreading false information online enables individuals with malicious intent to manipulate public opinion and destabilize social stability. Recently, fake news detection based on evidence retrieval has gained popularity in an…

Social and Information Networks · Computer Science 2024-05-29 Hao Liao , Jiaohao Peng , Zhanyi Huang , Wei Zhang , Guanghua Li , Kai Shu , Xing Xie

Due to extensive spread of fake news on social and news media it became an emerging research topic now a days that gained attention. In the news media and social media the information is spread highspeed but without accuracy and hence…

Artificial Intelligence · Computer Science 2022-01-21 Sajjad Ahmed , Knut Hinkelmann , Flavio Corradini

Recommender models are hard to evaluate, particularly under offline setting. In this paper, we provide a comprehensive and critical analysis of the data leakage issue in recommender system offline evaluation. Data leakage is caused by not…

Information Retrieval · Computer Science 2023-08-07 Yitong Ji , Aixin Sun , Jie Zhang , Chenliang Li

Nowadays, rating systems play a crucial role in the attraction of customers for different services. However, as it is difficult to detect a fake rating, attackers can potentially impact the rating's aggregated score unfairly. This malicious…

Computer Science and Game Theory · Computer Science 2022-08-05 Iman Vakilinia , Peyman Faizian , Mohammad Mahdi Khalili

Many online applications, such as online social networks or knowledge bases, are often attacked by malicious users who commit different types of actions such as vandalism on Wikipedia or fraudulent reviews on eBay. Currently, most of the…

Machine Learning · Computer Science 2018-06-07 Panpan Zheng , Shuhan Yuan , Xintao Wu , Jun Li , Aidong Lu

Every year, thousands of people receive consumer product related injuries. Research indicates that online customer reviews can be processed to autonomously identify product safety issues. Early identification of safety issues can lead to…

Machine Learning · Computer Science 2018-07-24 Graham Bleaney , Matthew Kuzyk , Julian Man , Hossein Mayanloo , H. R. Tizhoosh

The spread of fake news on online social networks (OSNs) has become a matter of concern. These platforms are also used for propagating important authentic information. Thus, there is a need for mitigating fake news without significantly…

Social and Information Networks · Computer Science 2022-07-18 Suyog Kapsikar , Indrajit Saha , Khushboo Agarwal , Veeraruna Kavitha , Quanyan Zhu