Search Results for author: Onur Varol

Found 16 papers, 8 papers with code

TurkishBERTweet: Fast and Reliable Large Language Model for Social Media Analysis

1 code implementation29 Nov 2023 Ali Najafi, Onur Varol

Wide us of this language on social media platforms such as Twitter, Instagram, or Tiktok and strategic position of the country in the world politics makes it appealing for the social network researchers and industry.

Hate Speech Detection Language Modelling +5

Hidden Citations Obscure True Impact in Science

no code implementations24 Oct 2023 Xiangyi Meng, Onur Varol, Albert-László Barabási

References, the mechanism scientists rely on to signal previous knowledge, lately have turned into widely used and misused measures of scientific impact.

Interpretable Machine Learning

#Secim2023: First Public Dataset for Studying Turkish General Election

1 code implementation22 Nov 2022 Ali Najafi, Nihat Mugurtay, Ege Demirci, Serhat Demirkiran, Huseyin Alper Karadeniz, Onur Varol

It is of utmost importance to capture the upcoming Turkish elections, as social media is becoming an essential component of election propaganda, political debates, smear campaigns, and election manipulation by domestic and international actors.

Academic Support Network Reflects Doctoral Experience and Productivity

no code implementations7 Mar 2022 Ozgur Can Seckin, Onur Varol

Current practices of quantifying performance by productivity leads serious concerns for psychological well-being of doctoral students and influence of research environment is often neglected in research evaluations.

Detection of Novel Social Bots by Ensembles of Specialized Classifiers

no code implementations11 Jun 2020 Mohsen Sayyadiharikandeh, Onur Varol, Kai-Cheng Yang, Alessandro Flammini, Filippo Menczer

The ensemble of specialized classifiers (ESC) can better generalize, leading to an average improvement of 56\% in F1 score for unseen accounts across datasets.

Misinformation

Network Medicine Framework for Identifying Drug Repurposing Opportunities for COVID-19

2 code implementations15 Apr 2020 Deisy Morselli Gysi, Ítalo Do Valle, Marinka Zitnik, Asher Ameli, Xiao Gan, Onur Varol, Susan Dina Ghiassian, JJ Patten, Robert Davey, Joseph Loscalzo, Albert-László Barabási

The current pandemic has highlighted the need for methodologies that can quickly and reliably prioritize clinically approved compounds for their potential effectiveness for SARS-CoV-2 infections.

Scalable and Generalizable Social Bot Detection through Data Selection

no code implementations20 Nov 2019 Kai-Cheng Yang, Onur Varol, Pik-Mai Hui, Filippo Menczer

To ensure model accuracy, we build a rich collection of labeled datasets for training and validation.

L2P: Learning to Place for Estimating Heavy-Tailed Distributed Outcomes

1 code implementation13 Aug 2019 Xindi Wang, Onur Varol, Tina Eliassi-Rad

In its placing phase, L2P obtains a prediction by placing the new instance among the known instances.

Arming the public with artificial intelligence to counter social bots

no code implementations3 Jan 2019 Kai-Cheng Yang, Onur Varol, Clayton A. Davis, Emilio Ferrara, Alessandro Flammini, Filippo Menczer

Researchers have responded by developing AI tools to arm the public in the fight against social bots.

Computers and Society

The spread of low-credibility content by social bots

2 code implementations24 Jul 2017 Chengcheng Shao, Giovanni Luca Ciampaglia, Onur Varol, Kaicheng Yang, Alessandro Flammini, Filippo Menczer

Communication, cognitive, social, and computer scientists are engaged in efforts to study the complex causes for the viral diffusion of misinformation online and to develop solutions, while search and social media platforms are beginning to deploy countermeasures.

Social and Information Networks Computers and Society Physics and Society

Online Human-Bot Interactions: Detection, Estimation, and Characterization

4 code implementations9 Mar 2017 Onur Varol, Emilio Ferrara, Clayton A. Davis, Filippo Menczer, Alessandro Flammini

Increasing evidence suggests that a growing amount of social media content is generated by autonomous entities known as social bots.

Social and Information Networks

Predicting online extremism, content adopters, and interaction reciprocity

no code implementations2 May 2016 Emilio Ferrara, Wen-Qiang Wang, Onur Varol, Alessandro Flammini, Aram Galstyan

We present a machine learning framework that leverages a mixture of metadata, network, and temporal features to detect extremist users, and predict content adopters and interaction reciprocity in social media.

BotOrNot: A System to Evaluate Social Bots

2 code implementations2 Feb 2016 Clayton A. Davis, Onur Varol, Emilio Ferrara, Alessandro Flammini, Filippo Menczer

While most online social media accounts are controlled by humans, these platforms also host automated agents called social bots or sybil accounts.

Social and Information Networks

The DARPA Twitter Bot Challenge

no code implementations20 Jan 2016 V. S. Subrahmanian, Amos Azaria, Skylar Durst, Vadim Kagan, Aram Galstyan, Kristina Lerman, Linhong Zhu, Emilio Ferrara, Alessandro Flammini, Filippo Menczer, Andrew Stevens, Alexander Dekhtyar, Shuyang Gao, Tad Hogg, Farshad Kooti, Yan Liu, Onur Varol, Prashant Shiralkar, Vinod Vydiswaran, Qiaozhu Mei, Tim Hwang

A number of organizations ranging from terrorist groups such as ISIS to politicians and nation states reportedly conduct explicit campaigns to influence opinion on social media, posing a risk to democratic processes.

Clustering memes in social media streams

no code implementations3 Nov 2014 Mohsen JafariAsbagh, Emilio Ferrara, Onur Varol, Filippo Menczer, Alessandro Flammini

The problem of clustering content in social media has pervasive applications, including the identification of discussion topics, event detection, and content recommendation.

Clustering Event Detection

The Rise of Social Bots

1 code implementation19 Jul 2014 Emilio Ferrara, Onur Varol, Clayton Davis, Filippo Menczer, Alessandro Flammini

The Turing test aimed to recognize the behavior of a human from that of a computer algorithm.

Social and Information Networks Computers and Society Data Analysis, Statistics and Probability Physics and Society

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