Research
Research, Publications, and Academic Work
A research program spanning more than two decades, from computational neuroscience and agent-based social simulation to AI safety governance and the organizational conditions that determine whether alignment holds at scale.
Research Lineage
Six Phases of a Connected Research Program
1999 to 2003
Computational Neuroscience
Simon's Rock College
First computational models of neural and cognitive systems; honors thesis on attentional dynamics in the human auditory neurosystem.
2005 to 2008
Organizational Resilience and Network Science
University of Connecticut
Graduate research applying network theory and statistical mechanics to organizational continuity and sociotechnical system resilience.
2008 to 2011
Complex Adaptive Social Simulation
Naval Postgraduate School
Development and federal validation of the CASS framework for modeling whole societies; applications to counterterrorism, peacekeeping, and irregular warfare.
2011 to 2015
Applied Complexity at Scale
Northrop Grumman / DMDC
Complex adaptive systems principles applied to the architectural design of large-scale federal programs including Global Force Management and DoD/VA Electronic Health Record modernization, in a $60B+ program environment.
2015 to 2023
Applied Complexity Research, Derivatives Markets
Extension of the CASS methodology to live financial markets as an empirical validation environment. Eight years of live-system operation.
2023 to Present
AI Safety Governance and Sociotechnical Systems
1023AI / USC
Active doctoral research and professional practice applying complex adaptive systems methodology to AI governance architecture, emergent misalignment, and the organizational conditions that determine whether safety holds under institutional pressure.
The Framework
The Complex Adaptive System Simulation Framework
The CASS framework is the through-line connecting every phase of this research program. It began not as a formal system but as a set of computational intuitions developed in an undergraduate computer lab in 1999, early experiments in modeling how simple rule-following components produce complex collective behavior. Those intuitions formalized over the following decade into a federally validated, VV&A-certified agent-based simulation platform applied to some of the most consequential environments the US government was navigating: counterterrorism operations, peacekeeping dynamics, irregular warfare, and international collaboration across more than 100 countries.
CASS models the emergence of Beliefs, Values, and Interests (BVIs) across whole societies at scale. It applies network science, discrete event simulation, and behavioral data derived from population surveys to forecast group-level dynamics in high-consequence environments. The validation framework meets the US Department of Defense standard for Verification, Validation, and Accreditation, a standard designed for models that inform operational decisions.
The framework has since been extended beyond defense applications to social policy modeling (SOPHIE, the Python port under active development), financial market dynamics, and AI governance architecture. The core methodology is the same across all domains: model the agents, model their interactions, simulate the emergent dynamics, and test the predictions against real-world outcomes.
Methodological Properties
Agent-based architecture
Each entity in the system is modeled as an autonomous agent with its own behavioral rules, social network connections, and internal state. Collective behavior emerges from local interactions, not top-down specification.
Discrete event simulation
Events are processed in sequence as they occur, not at fixed time steps. This provides a traceable, rigorous representation of how societies and systems evolve, and is particularly useful for modeling the dynamics of cascading failures.
Network-theoretic social structure
Social networks are built from empirical data using homophily principles. The structure of who influences whom is a core variable in the model, not a simplifying assumption.
Behavioral grounding from survey data
Agent behavioral parameters are derived from population survey data, including the General Social Survey for current SOPHIE development, rather than assumed. This produces predictions that are testable against empirical outcomes.
Research Eras
Five Eras in Depth
Each phase of this research program built directly on the last. The through-line is not thematic similarity but methodological continuity.
Computational Neuroscience and Cognitive Systems
1999 to 2008The research lineage begins with an undergraduate honors thesis at Simon's Rock College of Bard: Attentional Intensity in the Auditory Neurosystem, Spectral Space: Background, Current Theory, and New Research. The thesis received Institutional Review Board approval for human subjects testing, involved two years of experimental work on auditory attention and cognitive decision-making, and required the development of dedicated software for three interrelated experimental trials. It was an early investigation of the question that would animate the next two decades of work: how do complex systems, biological and social, produce behavior that cannot be predicted from their components alone?
Graduate work at the University of Connecticut extended these questions to organizational systems. The master's thesis applied network science and graph theory to the problem of organizational resilience: how do institutions fail under stress, and what structural conditions make them more robust? The thesis was sponsored by the Department of Defense through the Homeland Security Leadership program and is maintained as part of the Homeland Security Digital Library. This work is the direct intellectual precursor to the AI iatrogenics and robustness gap frameworks that now anchor the 1023AI practice.
Complex Adaptive Social Simulation at the Naval Postgraduate School
2008 to 2011The NPS period produced the CASS framework in its original form and the bulk of the published research record. As a Principal Investigator and DoD civilian program leader in the MOVES Institute, the work addressed a genuine operational need: defense and policy decision-makers required tools that could model how civilian populations in conflict environments respond to military operations, political change, and information campaigns. No existing simulation framework adequately captured the emergent dynamics of these systems.
CASS addressed this by treating societies as complex adaptive systems: modeling the beliefs, values, and interests of population segments as agent-level state variables, building social network structures from empirical survey data, and simulating how information, events, and interventions propagate through those networks to produce collective behavioral outcomes. The framework was applied to counterterrorism, counterinsurgency, peacekeeping, and stability operations contexts, with validation conducted against real-world outcomes in multiple international environments.
The research was presented at major international venues including the Winter Simulation Conference, the AAAI Spring Symposium, the Spring Simulation Multi-Conference, and the International Network for Social Network Analysis Sunbelt conferences in Italy and the United States. Publications appeared in peer-reviewed journals including Simulation and the Journal of Defense Modeling and Simulation, and in Springer's Lecture Notes in Computer Science series.
Applied Complexity at Scale — Defense and Health Systems at Northrop Grumman / DMDC
2011 to 2015The transition from NPS to Northrop Grumman was not a departure from the research program. It was its largest-scale application. As Senior Manager and Senior Analyst supporting the Defense Manpower Data Center, the same complex adaptive systems principles developed for the CASS framework were applied directly to the design and architecture of enterprise-scale federal systems operating within a funding environment exceeding $60 billion.
Two programs stand out as direct applications of complexity science at institutional scale. The Global Force Management (GFM) system and the GFM Data Initiative (GFM-DI) are DoD enterprise systems responsible for tracking, allocating, and managing the full scope of US military forces globally, a genuinely complex adaptive system with thousands of interdependent entities, nonlinear interaction dynamics, and emergent force posture outcomes that no single component produces alone. The architectural decisions made during this period, including the transition from legacy relational structures toward flat-file and document-based storage systems such as MongoDB, were grounded in an understanding of how complex data relationships behave at scale and under stress, specifically, the brittleness of tightly coupled relational schemas when the system they model does not itself behave relationally.
The Department of Defense and Department of Veterans Affairs Electronic Health Record modernization programs presented a parallel set of complexity challenges at the intersection of technical architecture and human systems. EHR systems are not software problems. They are sociotechnical systems problems: the technical architecture determines what clinicians can see and do, the organizational dynamics around the system determine whether what they see is accurate and timely, and the compliance and security infrastructure determines whether the whole system holds under the adversarial pressure federal health data systems face continuously. The consistent thread across all programs was a design philosophy grounded in complex systems thinking: favor modularity over tight coupling, build for the unexpected interaction rather than the anticipated one, and treat the human system operating around the technical system as a core architectural variable.
Applied Complexity Research in Derivatives Markets
2015 to 2023See the full treatment at Live Market Operations →. In brief: the CASS methodology was extended to live US equity index derivatives markets as an empirical validation environment for the core theoretical claims. Three years of simulation-only operation preceded live capital deployment. The system operated across ES and NQ futures and futures options from 2015 to 2023, producing validated performance results across multiple market regimes including the March 2020 COVID crash.
The connection to the broader research program is methodological, not analogical. The same agent-based framework that modeled emergent behavior in conflict dynamics was applied to emergent behavior in financial markets. The same pre-deployment simulation discipline that the AI safety community advocates for capable AI systems was applied before any live capital was risked. The results validated the central thesis: that complex adaptive systems producing emergent behavior under stress are modelable in advance, governable through disciplined simulation, and fundamentally different from what static testing frameworks can detect.
AI Safety Governance and Sociotechnical Systems
2023 to PresentThe current research program applies complex adaptive systems methodology directly to the governance of capable AI. Two parallel tracks are active simultaneously: doctoral research at USC's Suzanne Dworak-Peck School of Social Work, and independent theoretical work on AI alignment fragility and governance architecture through 1023AI.
The doctoral track centers on a capstone examining LLM governance in professional social work practice environments. The core argument: the decisive barrier to safe AI integration in high-stakes professional contexts is a governance architecture problem, not a technical one. The intervention point is not better models or better prompts. It is the design of the institutional and social structures that determine whether safety frameworks hold under real operational pressure. The capstone applies antifragile systems theory, drawing centrally on Taleb's fragility framework, alongside established community-based participatory research and co-design methodology and the current AI safety literature, to argue for a specific governance architecture: antifragile, community-based participatory co-design as the necessary mechanism for safe LLM deployment in professional practice. Expected completion: 2027.
The theoretical track is described in the Theoretical Contributions section below.
Publications
Selected Publications
H-index: 7 · Citations: 100+ · Highly influential papers: 8 · Source: Semantic Scholar (as of 2023)
* Denotes lead or corresponding authorship
Journal Articles
Lieberman, S.* (2012). Extensible Software for Modeling Whole Societies: Framework and Preliminary Results. Simulation, 88(5). (Republished with permission.)
Lieberman, S.*, Alt, J., and Anderson, T. (2011). Human Terrain Systems Modeling Information Requirements: Informing the Operational Commander and Social Simulations with a Unified Data Collection Instrument. Journal of Defense Modeling and Simulation (Special Issue: Modeling and Simulation in Human Terrain Systems).
Lieberman, S.* (2010). Extensible Software for Modeling Whole Societies: Framework and Preliminary Results. Journal of Simulation (Special Issue: Whole of Society Modeling).
Alt, J., Jackson, L., Hudak, D., and Lieberman, S. (2009). The Cultural Geography Model: Evaluating the Impact of Tactical Operational Outcomes on a Civilian Population in an Irregular Warfare Environment. Journal of Defense Modeling and Simulation: Applications, Methodology, Technology.
Book Chapters
Lieberman, S.* and Alt, J. (2010). Developing Social Networks for Artificial Societies from Survey Data. In S. Chai, J. Salerno, and P. Mabry (Eds.), Advances in Social Computing, Lecture Notes in Computer Science, Vol. 6007. New York: Springer.
Alt, J. and Lieberman, S.* (2010). Developing Cognitive Models for Social Simulations from Survey Data. In S. Chai, J. Salerno, and P. Mabry (Eds.), Advances in Social Computing, Lecture Notes in Computer Science, Vol. 6007. New York: Springer.
Conference Proceedings
AlRowaei, A., Lieberman, S.*, and Buss, A. (2011). The Impacts of the Time Advance Mechanism on Simple Agent Behaviors in Combat Simulations. Proceedings of the 2011 Winter Simulation Conference.
Alt, J., Lieberman, S., and AlRowaei, A. (2010). Exploring the Implications of Time in Discrete Event Social Simulations. Proceedings of the AAAI Spring Symposium.
Alt, J. and Lieberman, S.* (2010). Representing Dynamic Social Networks in Discrete Event Social Simulation. Proceedings of the 2010 Winter Simulation Conference.
Alt, J. and Lieberman, S.* (2010). Agent Frameworks for Discrete Event Social Simulations. Proceedings of the Behavior Representation in Modeling and Simulation Symposium.
Alt, J. and Lieberman, S. (2010). Modeling the Theory of Planned Behavior from Survey Data for Action Choice in Social Simulations. Proceedings of the Behavior Representation in Modeling and Simulation Symposium.
Alt, J., Lieberman, S.*, and Everton, S. (2010). Violent Extremist Network Representation and Attack the Network Course of Action Analysis in Social Simulation. Proceedings of the Spring Simulation Multi-Conference.
Alt, J., Lieberman, S.*, and Blais, C. (2010). A Use-Case Approach to the Validation of Social Modeling and Simulation. Proceedings of the Spring Simulation Multi-Conference.
Alt, J., Lieberman, S.*, and Anderson, T. (2010). Visualizing the Human, Social, Cultural, and Behavioral Components of a Complex Conflict Ecosystem. Proceedings of the Spring Simulation Multi-Conference.
Alt, J., Jackson, L., and Lieberman, S. (2009). The Cultural Geography Model: An Agent Based Modeling Framework for Analysis of the Impact of Culture in Irregular Warfare. Proceedings of the International Conference on Computational Cultural Dynamics.
Doctoral Research (In Progress)
Lieberman, S. (in progress, expected 2027). [DSW Capstone Title — to be added upon completion]. Doctoral capstone, USC Suzanne Dworak-Peck School of Social Work. Argues that the decisive barrier to safe LLM integration in professional practice is a governance architecture problem; proposes antifragile community-based participatory co-design as the necessary governance mechanism.
Theory
Theoretical Contributions to AI Safety
The following frameworks are original contributions developed through the intersection of complex systems research, empirical trading experience, and AI safety study. They are actively applied in the 1023AI practice and available for collaboration.
The Robustness Gap
A system can appear safe in theory and still fail under real deployment pressure.
The robustness gap describes the distance between nominal safety and real-world resilience in AI deployment environments. Static controls, compliance checklists, and point-in-time evaluations measure performance in controlled conditions. They do not measure performance under shifting institutional incentives, adversarial pressure, context drift, or the organizational fragmentation that characterizes real deployment. The robustness gap is not a measurement error. It is a structural feature of complex sociotechnical systems. Closing it requires leadership that can hold the technical system and the human system around it in view simultaneously.
Emergent Misalignment
Alignment that holds at one capability level can degrade quietly at the next.
Emergent misalignment is the most significant expression of the robustness gap. As AI systems become more capable, the interaction between their expanded capability and the organizational and social contexts in which they are deployed produces behavior that was not present at lower capability thresholds. This process is not catastrophic in the way alignment discourse often imagines. It is quiet, incremental, and invisible to standard evaluation pipelines. The parallel from complex systems: phase transitions do not announce themselves. They occur when aggregate interactions cross a threshold, and the system that emerges is qualitatively different from the one that entered.
AI Iatrogenics
Safety interventions can introduce the failure modes they were designed to prevent.
In medicine, iatrogenics refers to harm caused by the treatment itself. In AI safety governance, an intervention that reduces one visible risk while creating new failure modes elsewhere, distorting incentives, increasing brittleness, or destabilizing the broader sociotechnical system, is an iatrogenic intervention. Narrow safety measures applied without understanding the full system they are embedded in reliably produce iatrogenic effects. This framework draws on Taleb's work on fragility and intervention in complex systems, and on the empirical record of safety interventions in other high-consequence domains including medicine, financial regulation, and nuclear safety.
Emergent Foresight
Governing AI systems requires anticipatory leadership, not retrospective review.
Emergent foresight is the capacity to govern for what a system is becoming, not just what it currently is. Capability levels shift. Risk surfaces expand. The alignment properties that held at one threshold can degrade quietly at the next. Standard evaluation frameworks are retrospective by design: they measure what the system has done, not what it will do as it crosses the next capability threshold. Building governance structures with emergent foresight requires explicit anticipatory modeling, scenario planning grounded in complex systems principles, and institutional capacity to act on weak signals before they become cascading failures.
This framework extends the established literature on anticipatory governance, which holds that technologies are easiest to govern early, when their effects are uncertain, and hardest to govern late, when their effects are visible but their adoption is entrenched. Emergent foresight grounds that tradition explicitly in complex adaptive systems theory, where the relevant question is not just "when do we intervene?" but "what dynamics are producing the system we will face at the next capability threshold?" Answering that question requires modeling emergence directly, not waiting for it to arrive.
Service
Peer Recognition and Academic Service
Editorial and Peer Review
Selected Reviewer (2008 to 2012): Journal of Defense Modeling and Simulation: Applications, Methodology, Technology — Sage Publications
Selected Reviewer (2008 to 2012): Simulation: Transactions of the Society for Modeling and Simulation International — Society for Modeling and Simulation International
Conference Leadership
Program Chair (2011): Agent-Based Models and Multi-Agent Systems track, International Network of Social Network Analysis (INSNA) Sunbelt XXXI Conference
Program Committee Member (2015): Agent-Based Simulation track, Winter Simulation Conference
Doctoral Advising
Advisor (2008 to 2011): Mentorship to PhD and Master's students in MOVES, Computer Science, Operations Research, and Defense Analysis programs at the Naval Postgraduate School, primarily on dissertation and thesis research
Education
Doctoral Training and Current Research
Doctor of Social Work (in progress, expected 2027)
USC Suzanne Dworak-Peck School of Social Work
The DSW is a practice-focused doctorate designed for real institutional contexts. The Grand Challenges for Social Work, modeled after the National Academy of Engineering's Grand Challenges initiative, identify major social problems where concentrated research and practice investment can produce population-level change. The Grand Challenge to Harness Technology for Social Good anchors the doctoral research program here: not technology for technology's sake, but the governance architecture that determines whether technology produces good or harm at scale.
Doctoral research centers on LLM governance in professional social work practice. The capstone argument: the decisive barrier to safe AI integration is a governance architecture problem. The technical system shapes what the human system can do; the human system determines whether the technical system stays aligned with its intended purpose under operational pressure. Antifragile governance design and community-based participatory co-design are the proposed mechanisms. Expected contribution: a governance architecture framework applicable beyond social work to any institutional context deploying capable AI systems with direct impact on vulnerable populations.
PhD, Computer Science, Modeling and Simulation (ABD)
Naval Postgraduate School, MOVES Institute | GPA 4.0
Doctoral work focused on the modeling and simulation of social and sociotechnical systems, artificial intelligence and machine learning, big data, and human-computer interaction. National Security Institute Scholar Fellowship Award, sole recipient 2008.
Master's Degree, Organizational Behavior / Industrial Psychology
University of Connecticut | GPA 4.0 | DoD-sponsored
Applied network science and graph theory to organizational resilience and continuity of operations. Full text maintained in the Homeland Security Digital Library. Additional emphasis on Critical Infrastructure Protection in networked banking and finance systems, an early investigation of the financial system resilience questions that would be extended, a decade later, to the live derivatives research program.
This work is ongoing. If you are building in this space and would benefit from a collaborator with this research lineage, or if your organization is facing the governance architecture problems this work is designed to address, let's talk.
Start a Confidential Conversation →