Kathleen M. Carley profile photo

Kathleen M. Carley

Professor Carnegie Mellon University

  • Pittsburgh PA

Kathleen M. Carley's research combines cognitive science and computer science to address complex social and organizational problems.

Contact
Carnegie Mellon University logo

Carnegie Mellon University

View more experts managed by Carnegie Mellon University

Biography

Kathleen M. Carley is a professor in the Software and Societal Systems Department in Carnegie Mellon's School of Computer Science. She is the director of the Center for Computational Analysis of Social and Organizational Systems (CASOS), a university wide interdisciplinary center that brings together network analysis, computer science, and organization science (www.casos.ece.cmu.edu). Kathleen M. Carley's research combines cognitive science, social networks and computer science to address complex social and organizational problems. Her specific research areas are dynamic network analysis, computational social and organization theory, adaptation and evolution, text mining, and the impact of telecommunication technologies and policy on communication, information diffusion, disease contagion and response within and among groups particularly in disaster or crisis situations. She and her lab have developed infrastructure tools for analyzing large scale dynamic networks and various multi-agent simulation systems. The infrastructure tools include ORA, a statistical toolkit for analyzing and visualizing multi-dimensional networks. ORA results are organized into reports that meet various needs such as the management report, the mental model report, and the intelligence report. Another tool is AutoMap, a text-mining system for extracting semantic networks from texts and then cross-classifying them using an organizational ontology into the underlying social, knowledge, resource and task networks. Her simulation models meld multi-agent technology with network dynamics and empirical data. Three of the large-scale multi-agent network models she and the CASOS group have developed in the counter-terrorism area are: BioWar a city-scale dynamic-network agent-based model for understanding the spread of disease and illness due to natural epidemics, chemical spills, and weaponized biological attacks; DyNet a model of the change in covert networks, naturally and in response to attacks, under varying levels of information uncertainty; and RTE a model for examining state failure and the escalation of conflict at the city, state, nation, and international as changes occur within and among red, blue, and green forces. Dr. Carley is the director of the center for Computational Analysis of Social and Organizational Systems (CASOS) which has over 25 members, including students, post doctoral fellows, research staff, and faculty.

Areas of Expertise

Dynamic Network Analysis
Cognitive Science
Cybersecurity and Privacy
Computer Science
Social Networks

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."

View More

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.

View More

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.

View More

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.

Economics & 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.

View more

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.

View more

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.

View more