Carnegie Mellon University

Kathleen M. Carley

Kathleen M. Carley

Computer Science, Engineering and Public Policy, Social and Decision Sciences, The Heinz College, and Tepper School of Business

  • TCS Hall Room 425
  • 412-268-6016
Institute of Software Research
Carnegie Mellon University
5000 Forbes Avenue
Pittsburgh, PA 15213


  • Carnegie Mellon 1984-
  • IEEE Fellow 2013

Professor Carley specializes in network science, agent-based modeling, and text-mining within a complex socio-technical system, organizational and social theory framework. In her work, she examines how cognitive, social and institutional factors come together to impact individual, organizational and societal outcomes. Using this lens she has addressed a number of policy issues including counter-terrorism, human and narcotic trafficking, cyber and nuclear threat, organizational resilience and design, natural disaster preparedness, cyber threat in social media, and leadership. She has written 4 books, edited 2 books, been on 10 NRC panels resulting in monographs, and published over 430 journal articles and chapters. She is the recipient of the lifetime achievement award in Mathematical Sociology, the Simmel award in Social Networks from the International Network for Social Network Analysis, and the Allen Newell Award for Research Excellence - “For the creation of empirical methods to rigorously establish the impact of human communication on software quality.” She is a member of the IEEE, ACM, ASA, the Academy of Management and INSNA. She has served as a task force member of the Defense Science Board and committee member on the Department of Homeland Security Science and Technology. She is the developer of the ORA software for network analytics and visualization that is widely used in academics, organizations and government.


  • Ph.D. (Sociology) 1984, Harvard
  • S.B. (Economics, Political Science) 1978, Massachusetts Institute of Technology


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 social network analysis, dynamic network analysis, agent-based modeling, computational social and organization theory, adaptation and evolution, social network text mining, cyber security 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 members of her center have developed novel tools and technologies for analyzing large-scale geo-centric dynamic-networks and various multi-agent simulation systems.  These tools include: ORA, a statistical and graphical toolkit for analyzing and visualizing multi-dimensional networks and time-varying networks;  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; CEMAP, a system for extracting networks from email and blogs; and SORASCS, a service oriented plus architecture for designing and sharing workflows in the human socio-cultural space. 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 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; Construct  an agent-based dynamic-network based model for assessing network evolution and the diffusion of information and beliefs under diverse socio-demographic and media environments; 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, both students and research staff. 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.


(Selected from over 420)
  1. Kathleen M. Carley, 2014, ORA: A Toolkit for Dynamic Network Analysis and Visualization, In Reda Alhajj and Jon Rokne (Eds.) Encyclopedia of Social Network Analysis and Mining, Springer.
  2. Michael J. Lanham, Geoffrey P. Morgan, and Kathleen M. Carley. 2014, “Social Network Modeling and Agent-Based Simulation in Support of Crisis De-escalation.” IEEE Transactions on Systems, Man, and Cybernetics: Systems. 44(1): 103-110. DOI: 10.1109/TSMCC.2012.2230255
  3. Craig Schreiber and Kathleen M. Carley, 2013, “Validating Agent Interactions in Construct Against Empirical Communication Networks Using the Calibrated Grounding Technique,” IEEE Transactions on Systems, Man and Cybernetics-Part A, 43(1): 208-214.
  4. Kenny Joseph, Chun How Tan and Kathleen M. Carley, 2012, “Beyond 'Local', 'Socal' and 'Category': Clustering foursquare Users Using Latent 'Topics'” 4th International Workshop on Location-Based Social Networks (LBSN 2012) at UBICOM Sept 8, 2012 - Pittsburgh, PA. Best Paper Award.
  5. Ghita Mezzour, L. Richard Carley and Kathleen M. Carley.2014 (forthcoming) Longitudinal Analysis of a Large Corpus of Cyber Threat Descriptions. Journal of Computer Virology and Hacking Techniques
  6. Kathleen M. Carley, Jürgen Pfeffer, Fred Morstatter, and Huan Liu, 2014-forthcoming, Embassies Burning: Toward a Near Real Time Assessment of Social Media Using Geo-Temporal Dynamic Network Analytics, Social Network Analysis and Mining, DOI: 10.1007/s13278-014-0195-3
  7. Miray Kas, Kathleeen M. Carley, L.Richard Carley, 2013, Incremental Closeness Centrality for Dynamically Changing Social Networks. Workshop on the Semantic and Dynamic Analysis of Information Networks (SDAIN'13). In Proceedings of the 2013 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM), August 25-28, 2013, Niagara Falls, Canada.
  8. Marcelo Cataldo, Patrick Wagstrom, James Herbsleb and Kathleen M. Carley, 2006, "Identification of Coordination Requirements: Implications for the design of collaboration and awareness tools", Computer Supported Cooperative Work, Banff, Alberta, Canada, 2006: 353 - 362. Available from: Best Paper CSCW 2006, Awarded by ACM SIGCHI.
  9. Kathleen M. Carley, Michael K. Martin and Brian Hirshman, 2009, “The Etiology of Social Change,” Topics in Cognitive Science, 1.4:621-650.
  10. Yuqing Ren, Kathleen M. Carley and Linda Argote, 2006, “The Contingent Effects of Transactive Memory: When Is It More Beneficial to Know What Others Know?,” Management Science, 52(5): 671-682.
  11. Miray Kas, Alla Khadka, William Frankenstein, Ahmed Y. Abdulla, Frank Kunkel, L. Richard Carley and Kathleen M. Carley, 2012, “Analyzing scientific networks for nuclear capabilities assessment.” Journal of the American Society for Information Science and Technology, 63.7: 1294–1312. DOI: 10.1002/asi.22678

Courses Currently Being Taught

Dynamic Network Analysis:  Covers graph and statistical approaches to
understanding networks connecting people, ideas, countries, resources,
and so forth.

Computational Modeling of Complex Socio-Technical Systems: Covers Agent
based simulation and system dynamic simulation.

Research Interests

Network Science, dynamic network analysis, computer simulation, social media analytics, text mining, computational social science, social-cyber security, global cbrne threat, complex socio-technical systems, information diffusion, organizational design, adaptation, and evolution