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Kathleen M. Carley

Professor Carnegie Mellon University

  • Pittsburgh PA

Kathleen M Carley employs network science, AI & simulation to address organizational, information, social cyber security & influence issues.

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Biography

Kathleen M. Carley, Ph.D. Sociology – Harvard, does research involves applying computational social science, cognitive science, organization science, dynamic network analysis, social network analysis, and AI to complex social and organizational problems such as social cybersecurity, disinformation, disease contagion, disaster response, and terrorism. She develops social and dynamic network analytical and visual techniques, agent-based models, network-based text mining and AI tools, all predicated on blending socio-cognitive theory with advanced computation. She and members of her center have developed novel tools and technologies for analyzing large-scale geo-centric dynamic-networks, scenario creation and synthetic data creation at scale, and various agent-based simulation systems. These tools include ORA which is a statistical and graphical toolkit for analyzing and visualizing multi-dimensional networks, social networks, dynamic-networks, geo-spatial networks with special features for social media analytics; NetMapper and AutoMap which are text-mining systems for extracting semantic networks from texts and then cross-classifying them using an organizational ontology into the underlying social, knowledge, resource, and task networks, as well as sentiment. Her simulation models meld agent-based technology with network dynamics, empirical data and LLMs. For example, AESOP and SynSM support creating scenarios and simulating adaptive populations. Dr. Carley is the director of the center for Computational Analysis of Social and Organizational Systems (CASOS) and the center for Informed Democracy and Social-Cybersecurity (IDeaS). She is the founding co-editor of the journal Computational Organization Theory and has co-edited several books in the computational organizations and dynamic network area. She has led multiple applied projects, e.g., identifying disinformation aimed at at-risk populations in SW PA that was used by the public health groups, OMEN a train as you play system for recognizing. detecting and learning how to respond to online harms, and her work on insider threat. Many of the algorithms and tools she has led the development of, are now in use in corporations and the military. Her work has led to changes in doctrine in the US military, to new courses at various universities, and to new funding priorities in US research sponsors.

Areas of Expertise

Social Network Analysis
Network Science
Social Applications of AI
Online Harms
Social Cybersecurity
Organizational Design
Influence Operations
Information Operations

Media Appearances

AI-Generated Election Ads Are Flooding Your Feed – Why AI Is Making the Truth the First Casualty of Future Elections

Yahoo! News  online

2026-07-27

As Carnegie Mellon's Kathleen Carley advises, when content triggers sudden strong emotion, that reaction may signal you're "being played by the story."

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CMU expert on AI: There's a constant battle between disinformation and those thwarting it

TribLive  online

2025-10-12

Kathleen Carley, a professor in Carnegie Mellon University’s Software and Societal Systems Department, laid out the good and bad side of AI during a presentation Thursday for the American Association of University Women’s Murrysville chapter.

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Musk and X are epicenter of US election misinformation, experts say

Daily Mail  online

2024-11-04

Kathleen Carley (School of Computer Science) says Musk’s wide reach on X helps spread false election information to other platforms, like Reddit and Telegram. She explains that X acts as a “conduit,” allowing misleading content to move easily from one social media site to another.

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Media

Social

Industry Expertise

Research
Education/Learning

Accomplishments

National Geospatial-Intelligence Agency Academic Award

2018

GEOINT

Simmel Award

2011

International Network for Social Network Analysis

Education

University of Zurich

H.D.

Business, Economics and Informatics

2019

Harvard University

Ph.D.

Mathematical Sociology

1984

Massachusetts Institute of Technology

S.B.

Political Science

1978

Affiliations

  • ACM
  • IEEE
  • Academy of Management
  • INFORMS [ORSA/TIMS]
  • AAAS

Event Appearances

Socially Influence Campaigns: The Coordination of Events Using Bots and Misinformation,

NSF Prepare workshop: Social, Behavioral, economic and governance aspects of pandemics  Virtual

Online Terrorism and Insider Threat

7th Workshop on Research for Insider Threats  Virtual

Orchestrating Change with Disinformation and Influence

IEEE 2021  

Articles

#WhatIsDemocracy: finding key actors in a Chinese influence campaign

Computational and Mathematical Organization Theory

2023

The rapid increase in China’s outward digital presence on western social media platforms highlights China’s priorities for promoting pro-Chinese narratives and stories in recent years. Simultaneously, China has increasingly been accused of launching information operations using bot activity, puppet accounts, and other inauthentic activity to amplify its messaging. This paper provides a comprehensive network analysis characterization of the hashtag influence campaign China promoted against the US-hosted Summit on Democracy in December 2021, in addition to methods to identify different types of actors within this type of influence campaign.

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A Weakly Supervised Classifier and Dataset of White Supremacist Language

arXiv:2306.15732

2023

We present a dataset and classifier for detecting the language of white supremacist extremism, a growing issue in online hate speech. Our weakly supervised classifier is trained on large datasets of text from explicitly white supremacist domains paired with neutral and anti-racist data from similar domains. We demonstrate that this approach improves generalization performance to new domains. Incorporating anti-racist texts as counterexamples to white supremacist language mitigates bias.

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Bridging online and offline dynamics of the face mask infodemic

BMC Digital Health

2023

Online infodemics have represented a major obstacle to the offline success of public health interventions during the COVID-19 pandemic. Offline contexts have likewise fueled public susceptibility to online infodemics. We combine a large-scale dataset of Twitter conversations about face masks with high-performance machine learning tools to detect low-credibility information, bot activity, and stance toward face masks in online conversations. We match these digital analytics with offline data regarding mask-wearing and COVID-19 cases to investigate the bidirectional online-offline dynamics of the face mask infodemic in the United States.

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