(Under review)

Refereed ​​​​​Conference Articles

  1. M. Raza, O.U Ahmad, M. Shabbir, X. Koutsoukos, W. Abbas, "Control-based Conditions for Graph Distinguishability," SIAM Conference on Control and its Applications (SIAM CT), Montreal, Canada, 2025  
  2. M. U. Zubair, T. Johnson, K. Basu, and W. Abbas, "​Verification of Neural Network Robustness Against Weight Perturbations Using Star Sets," IEEE Conference on Artificial Intelligence (CAI), Santa Clara, CA, 2025.
  3. Y. Wei, A. Said, W. Abbas, and X. Koutsoukos, "Robust Anomaly Detection with Graph Neural Networks using Controllability," IEEE Conference on Artificial Intelligence (CAI), Santa Clara, CA, 2025.
  4. ​​​C. Lee and W. Abbas,"Resilient Distributed Vector Consensus Under Dynamic State Imprecision," American Control Conference (ACC), Denver, CO, 2025.
  5. O. U. Ahmad, A. Said, M. Shabbir, X. Koutsoukos, and W. Abbas, "Learning Backbones: Sparsifying Graphs through Zero Forcing for Effective Graph-Based Learning."  13th International Conference on Complex Networks, Istanbul, Turkey, 2024.
  6. A. Said, O. U. Ahmad, W. Abbas, M. Shabbir, X. Koutsoukos, "Improving Graph Machine Learning Performance Through Feature Augmentation Based on Network Control Theory," 32nd Mediterranean Conference on Control and Automation, Greece, 2024. 
  7. ​C. Lee and W. Abbas, "A Geometric Approach to Resilient Distributed Consensus Accounting for State Imprecision and Adversarial Agents," American Control Conference (ACC), Toronto, Canada, 2024.
  8. O. U. Ahmad, A. Said, M. Shabbir, X. Koutsoukos, and W. Abbas, "Control-based Graph Embeddings with Data Augmentation for Contrastive Learning," American Control Conference (ACC), Toronto, Canada, 2024.
  9. A. Said, M. Shabbir, T. Derr, W. Abbas, and X. Koutsoukos, "Enhanced Graph Neural Networks with Ego-Centric Spectral Subgraph Embeddings Augmentation,"  IEEE International Conference on Machine Learning and Applications, Jacksonville, FL, 2023.
  10. O. U. Ahmad, M. Shabbir, and W. Abbas, "Controllability Backbone in Networks," IEEE Conference on Decision and Control (CDC), Singapore, 2023.
  11. W. Abbas, "Resilient Strong Structural Controllability in Networks using Leaky Forcing in Graphs," American Control Conference (ACC), San Diego, CA, 2023.
  12. P. Patel, J. Suresh, and W. Abbas, "Distributed Design of Controllable and Robust Networks using Zero Forcing and Graph Grammars," American Control Conference (ACC), San Diego, CA, 2023.
  13. W. Abbas, M. Shabbir, Y. Yazicioglu, and X. Koutsoukos,  "Leader Selection for Strong Structural Controllability in Networks using Zero Forcing Sets," American Control Conference (ACC), Atlanta, GA, 2022.
  14. C. Bhowmick, M. Shabbir, W. Abbas, and X. Koutsoukos,  "Resilient Multi-Agent Reinforcement Learning Using Medoid and Soft-Medoid Based Aggregation"​ IEEE International Conference on Assured Autonomy (ICAA'22), Puerto Rico, 2022.
  15. W. Abbas, M. Shabbir, Y. Yazicioglu and X. Koutsoukos, "Edge Augmentation with Controllability Constraints in Directed Laplacian Networks," 60th IEEE Conference on Decision and Control (CDC), Austin, TX, 2021. [Presentation]
  16. ​J. Li, W. Abbas and X. Koutsoukos, "Byzantine Resilient Distributed Multi-Task Learning," 34th Conference on Neural Information Processing Systems (NeurIPS), 2020. (acceptance rate 20%). [Poster]
  17. ​A. Y. Yazicioglu, M. Shabbir, W. Abbas and X. Koutsoukos, "Strong Structural Controllability of Diffusively Coupled Networks: Comparison of Bounds Based on Distances and Zero Forcing,"  59th IEEE Conference on Decision and Control (CDC), Jeju Island, South Korea, 2020
  18. W. Abbas, M. Shabbir, J. Li and X. Koutsoukos, "Interplay Between Resilience and Accuracy in Resilient Vector Consensus in Multi-Agent Networks ",  59th IEEE Conference on Decision and Control (CDC), Jeju Island, South Korea, 2020.
  19. J. Li, W. Abbas and X. Koutsoukos, "Resilient Distributed Diffusion for Multi-Robot Systems Using Centerpoint", 16th Robotics: Science and Systems (RSS), Corvallis, OR, 2020. 
  20. Z.R. Hassan, I. Khan, M. Shabbir, and W. Abbas, "Estimating Descriptors for Large Graphs",24th Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD), Singapore, 2020 (acceptance rate 21%).
  21. W. Abbas, M. Shabbir, H. Jaleel, and X. Koutsoukos, "Improving Network Robustness through Edge Augmentation While Preserving Strong Structural Controllability",American Control Conference (ACC), Denver, CO, 2020. [Presentation]
  22. ​M. Shabbir, J. Li, W. Abbas, and X. Koutsoukos, "Resilient Vector Consensus in Multi-Agent Networks Using Centerpoints",American Control Conference (ACC), Denver, CO, 2020. [Presentation] [Video]
  23. M. Shabbir, W. Abbas, and A. Y. Yazicioglu, "On the Computation of a Lower Bound on Strong Structural Controllability in Networks," 58th IEEE Conference on Decision and Control (CDC), Nice, France, 2019.
  24. H. Jaleel and W. Abbas, and J. Shamma,"Robustness of Stochastic Learning Dynamics to Player Heterogeneity in Games,"58th IEEE Conference on Decision and Control (CDC), Nice, France, 2019.
  25. A. Y. Yazicioglu, W. Abbas, and M. Shabbir, "Structural Robustness to Noise in Consensus Networks: Impact of Average Degrees and Average Distances,"58th IEEE Conference on Decision and Control (CDC), Nice, France, 2019.
  26. F. Ghawash and W. Abbas, "Leveraging Diversity for Achieving Resilient Consensus in Sparse Networks," 8th IFAC Workshop on Distributed Estimation and Control in Networked Systems (NecSys), Chicago, IL, 2019. [Presentation]
  27. W. Abbas, M. Shabbir, A. Y. Yazicioglu, and A. Akbar, "On the Trade-off Between Controllability and Robustness in Networks of Diffusively Coupled Agents," ​American Control Conference (ACC), Philadelphia, PA, USA, 2019. [Presentation]
  28. W. Abbas, A. Laszka, and X. Koutsoukos, "Diversity and Trust to Increase Structural Robustness in Networks," ​American Control Conference (ACC), Philadelphia, PA, USA, 2019. [Presentation]
  29. A. Mitra, W. Abbas, and S.  Sundaram,"On the Impact of Trusted Nodes in Resilient Distributed State Estimation of LTI Systems,"57th IEEE Conference on Decision and Control (CDC), Miami, FL, 2018.  
  30. A. Laszka, W. Abbas, Y. Vorobeychik, X. Koutsoukos, "Synergistic Security for the Industrial Internet of Things: Integrating Redundancy, Diversity, and Hardening," IEEE International Conference on Industrial Internet (ICII), Bellevue, WA, 2018.
  31. H. Jaleel and W. Abbas, "A Connectivity Preserving Framework for Distributed Motion Coordination in Proximity Networks,"American Control Conference (ACC), Milwaukee, WI, 2018.[Presentation]
  32. M. Haque, W. Abbas, A. Rafter, and J. Adams, "Efficient Topological Distances and Comparable Metric Ranges," ​IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), Vancouver, BC, Canada, 2017.
  33. W. Abbas, A. Laszka, Y. Vorobeychik, and X. Koutsoukos,"Improving Network Connectivity using trusted nodes and edges," ​American Control Conference (ACC), Seattle, WA, 2017.[Presentation]
  34. W. Abbas, P. Sela, S. Amin, and X. Koutsoukos, "Resilient Sensor Placement for Fault Localization in Water Distribution Networks," ACM/IEEE 7th International Conference on Cyber-Physical Systems (ICCPS), Pittsburgh, PA, 2017. [Presentation]
  35. W. Abbas, A. Laszka, and X. Koutsoukos, "Graph-theoretic Approach for Increasing Participation in Social Sensing," 2nd International Workshop on Social Sensing (SocialSens), Pittsburgh, PA, 2017. [Presenation]
  36. A. Laszka, W. Abbas, Y. Vorobeychik, and X. Koutsoukos, "Synergic Security for Smart Water Networks: Redundancy, Diversity, and Hardening," 3rd Intl. Workshop on Cyber-Physical Systems for Smart Water Networks (CySWater), Pittsburgh, PA, 2017.​​[Presenation]
  37. A. Ghafouri, W. Abbas, A. Laszka, Y. Vorobeychik, X. Koutsoukos,"Optimal Thresholds for Anomaly-Based Intrusion Detection in Dynamical Environments," 7th Conference on Decision and Game Theory for Security (GameSec), New York, 2016.
  38. ​A. Ghafouri, W. Abbas, Y. Vorobeychik, and X. Koutsoukos, "Vulnerability of Fixed-Time Control of Signalized Intersections to Cyber-Tampering," 9th International Symp. on Resilient Control Systems (Resilience Week), Chicago, IL, 2016.
  39. A. Laszka, W. Abbas, S. Sastry, Y. Vorobeychik, and X. Koutsoukos, "Optimal Thresholds for Intrusion Detection Systems," 3rd Annual Symposium and Bootcamp on the Science of Security (HotSoS), Pittsburgh, PA, 2016. [​​Presentation]
  40. ​W. Abbas, P. Sela, S. Amin, and X. Koutsoukos, "An Efficient Approach to Fault Identification in Urban Water Networks Using Multi-Level Sensing,"2nd ACM International Conference on Embedded Systems for Energy Efficient Built Environments (BuildSys), Seoul, South Korea, 2015. [Presentation]
  41. W. Abbas, A. Laszka, Y. Vorobeychik, and X. Koutsoukos, "Scheduling Intrusion Detection Systems in Resource-Bounded Cyber-Physical Systems,"1st ACM Workshop on Cyber-Physical Systems Security and Privacy (CPS-SPC), Denver, CO, 2015.
  42. W. Abbas, S. Bhatia, and X. Koutsoukos, "Guarding Networks through Heterogeneous Mobile Guards," American Control Conference (ACC), Chicago, IL, 2015.
  43. W. Abbas, S. Bhatia, Y. Vorobeychik, and X. Koutsoukos, "Immunization against Infection Propagation In Heterogeneous Networks," 13th IEEE International Symposium on Network Computing and Applications, Cambridge (NCA), MA, 2014.
  44. W. Abbas, Y. Vorobeychik, and X. Koutsoukos, "Resilient Consensus Protocol in the Presence of Trusted Nodes,"7th IEEE International Symposium on Resilient Control Systems (ISRCS), Denver, CO, 2014.
  45. W. Abbas, H. Jaleel, M. Egerstedt, "Energy-efficient Data Collection in Heterogeneous Wireless Sensor and Actor Networks," IEEE Conference on Decision and Control, Florence (CDC), Italy, 2013.
  46. W. Abbas and M. Egerstedt, "Distribution of Agents with Multiple Capabilities in Multiagent Networks - A Graph Theoretic View," IEEE Conference on Decision and Control (CDC), Maui, HI, 2012.
  47. A. Y. Yazicioglu, W. Abbas, and M. Egerstedt, "A Tight Lower Bound on the Controllability of Networks with Multiple Leaders," IEEE Conference on Decision and Control (CDC), Maui, HI, 2012.
  48. ​W. Abbas and M. Egerstedt, "Robust Topologies for Networked Systems," IFAC Workshop on Distributed Estimation and Control in Networked Systems (NecSys), Santa Barbara, CA, 2012.
  49. W. Abbas and M. Egerstedt, "Securing Multiagent Systems against a Sequence of Intruder Attacks,"American Control Conference, Montreal (ACC), Canada, 2012. 
  50. W. Abbas and M. Egerstedt, "Distribution of Agents in Heterogeneous Multiagent Systems," 50th IEEE Conference on Decision and Control (CDC), Orlando, FL, 2011.
  51. W. Abbas and M. Egerstedt, "Hierarchical Assembly of Leader-Asymmetric, Single Leader Networks," American Control Conference (ACC), San Francisco, CA, 2011.

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​​Journal Articles

  1. W. Abbas, "Leaky Forcing in Graphs for Resilient Controllability in Networks,"  IEEE Transactions on Control of Network Systems, vol. 12, no. 1, pp. 190 - 201, 2025.
  2. L. Khalyavin and W. Abbas, "On the Non-resiliency of Subsequence Reduced Resilient Consensus in Multiagent Networks," European Journal of Control (Elsevier), 2024.
  3. P. I. Patel, S. Johir,  and  W. Abbas, "Distributed Design of Strong Structurally Controllable and Maximally Robust Networks,"           IEEE Transactions on Network Science and Engineering, vol. 11, no. 5, pp. 4428 - 4442, 2024.
  4. O.U. Ahmad, M. Shabbir, W. Abbas, and X. Koutsoukos, "A Graph Machine Learning Framework to Compute Zero Forcing Sets in Graphs," IEEE Transactions on Network Science and Engineering, vol. 11, no. 2, pp. 2110 - 2123, 2024.
  5. W. Abbas, M. Shabbir, A. Y. Yazicioglu, and X. Koutsoukos, "On Zero Forcing Sets and Network Controllability- Computation and Edge Augmentation," IEEE Transactions on Control of Network Systems, vol. 11, no. 1, pp. 402 - 413, 2024.
  6. ​A. Said, O.U. Ahmad, W. Abbas, M. Shabbir, and X. Koutsoukos, "Network Controllability Perspectives on Graph Representation," IEEE Transactions on Knowledge and Data Engineering, vol. 36, no. 8, pp. 4116 - 4128, 2024.
  7. J. Li, W. Wang, W. Abbas, and X. Koutsoukos, "Distributed Clustering for Cooperative Multi-Task Learning Networks." IEEE Transactions on Network Science and Engineering, vol. 10, no. 6, pp. 3933 - 3942, 2023.
  8. Z. Hassan, S. Ali, I. Khan, M. Shabbir, and W. Abbas, "Computing Graph Descriptors on Edge Streams​​." ACM Transactions on Knowledge Discovery from Data (TKDD), vol. 17, no. 8, pp. 112:1 - 112:25, 2023.​​​​
  9.  A. Said, M. Shabbir, B. Broll, W. Abbas, P. Volgyesi, and X. Koutsoukos, "Circuit Design Completion using Graph Neural  Networks,"  Neural Computing and Applications (Springer), vol. 35, pp. 12145–12157, 2023. 
  10. ​A. Akbar, H. Jaleel, W. Abbas, and J. Shamma, "Robustness of Learning in Games With Heterogeneous Players," IEEE Transactions on Automatic Control, vol 68, no. 3, pp. 1553 - 1567, 2023.
  11. M. Shabbir, W. Abbas, A. Y. Yazicioglu and X. Koutsoukos, "Computation of the Distance-based Bound on Strong Structural Controllability in Networks," IEEE Transactions on Automatic Control, vol. 68, no. 3, pp. 1768 - 1775, 2023.
  12. A. Y. Yazicioglu, M. Shabbir, W. Abbas, and X. Koutsoukos,"Strong Structural Controllability of Networks: Comparison of Bounds Using Distances and Zero Forcing,"Automatica (Elsevier), vol. 146, 2022.
  13. J. Li, W. Abbas, M. Shabbir, and X. Koutsoukos, "Byzantine Resilient Distributed Learning in Multi-Robot Systems," IEEE Transactions on Robotics, vol. 38, no. 6, pp. 3550 - 3563, 2022.
  14. ​W. Abbas, M. Shabbir, J. Li and X. Koutsoukos,  "Resilient Distributed Vector Consensus Using Centerpoint" Automatica (Elsevier), vol. 136, 2022.
  15. W. Abbas, M. Shabbir, A. Y. Yazicioglu, and X. Koutsoukos, "Edge Augmentation with Controllability Constraints in Directed Laplacian Networks,"  IEEE Control System Letters, vol. 6, pp. 1106 - 1111, 2022.
  16. A. Mitra, F. Ghawash, S.  Sundaram and W. Abbas, "On the Impacts of Redundancy, Diversity, and Trust in Resilient Distributed State Estimation,"  IEEE Transactions on Control of Network Systems, vol. 8, no. 2, pp. 713 - 724, 2021.
  17. A. Said, S. Hassan, W. Abbas and, M. Shabbir, "NetKI: A Kirchhoff Index Based Statistical Graph Embedding in Nearly Linear Time,"  Neurocomputing (Elsevier), vol. 433, pp. 108 - 118, 2021.
  18. Y. Yazicioglu, W. Abbas, M. Shabbir, "Structural Robustness to Noise in Consensus Networks: Impact of Degrees and Distances, Fundamental Limits, and Extremal Graphs,"  IEEE Transactions on Automatic Control, vol. 66, no. 10, pp. 4777 - 4784, 2021.
  19. W. Abbas, M. Shabbir, A. Y. Yazicioglu, and A. Akber, "Trade-off Between Controllability and Robustness in Diffusively Coupled Networks" IEEE Transactions on Control of Network Systems, vol. 7, no. 4, pp. 1891 - 1902, 2020.
  20. W. Abbas, A. Laszka, M. Shabbir, and X. Koutsoukos, "Graph-Theoretic Approach for Increasing Participation in Networks with Assorted Resources," IEEE Transactions on Network Science and Engineering, vol. 7, no. 3, pp. 930 - 946, 2020.
  21. J. Li, W. Abbas, X. Koutsoukos, "Resilient Distributed Diffusion in Networks with Adversaries,"  IEEE Transactions on Signal and Information Processing over Networks, vol. 26, pp. 1 - 17, 2020.
  22. ​A. Laszka, W. Abbas, Y. Vorobeychik, and X. Koutsoukos, "Integrating Redundancy, Diversity, and Hardening to Improve Security of Industrial Internet of Things,"   Cyber-Physical Systems (Taylor & Francis), vol. 6, no. 1, pp. 1 - 32, 2020.
  23. A. Laszka, W. Abbas, Y. Vorobeychik, and X. Koutsoukos, "Detection and Mitigation of Attacks on Transportation Networks as a Multi-Stage Security Game,"Computers & Security (Elsevier), vol. 87, 2019.
  24. A. Ghafouri, A. Laszka, W. Abbas, Y. Vorobeychik, and X. Koutsoukos, "A Game-Theoretic Approach for Selecting Optimal Thresholds for Attack Detection in Dynamical Environments," Autonomous Agents and Multi-Agent Systems (Springer), vol. 33, no. 4, pp. 430 - 456, 2019.​
  25. ​M. Atif et al., "Soft Computing Techniques for Dependable Cyber-Physical Systems,"  IEEE Access, vol. 7, 2019.
  26. W. Abbas, A. Laszka, and X. Koutsoukos, "Improving Network Connectivity and Robustness Using Trusted Nodes with Application to Resilient Consensus," IEEE Transactions on Control of Network Systems, vol. 5, no. 4, pp. 2036 - 2048, 2018.
  27. W. Abbas, A. Laszka, Y. Vorobeychik, and X. Koutsoukos,"Scheduling Resource-Bounded Monitoring Devices for the Detection and Isolation of Events in Networks,"  IEEE Transactions on Network Science and Engineering, vol. 5, no. 1, pp. 65 - 78, 2018.
  28. A. Laszka, W. Abbas, and X. Koutsoukos, "Scheduling Battery-Powered Sensor Networks for Minimizing Detection Delays," IEEE Communications Letters, vol. 21, no. 4, pp. 789 - 792, 2017.
  29. A. Y. Yazicioglu, W. Abbas, and M. Egerstedt, "Graph Distances and Network Controllability," IEEE Transactions on Automatic Control, vol. 61, no. 12, pp. 4125 - 4130, 2016.
  30. P. Sela, W. Abbas, X. Koutsoukos, and S. Amin, "Fault Location Identification in Water Distribution Networks - A Minimum Test Cover Based Approach," Automatica, vol. 72, pp. 166 - 176, 2016. 
  31. W. Abbas, M. Egerstedt, C.-H. Liu, R. Thomas, and P. Whalen, "Deploying Robots with Two Sensors in K(1,6)-free Graphs," Journal of Graph Theory (Wiley), vol. 82, no. 3, pp. 236 - 252, 2016.
  32. ​W. Abbas and X. Koutsoukos, "Efficient Complete Coverage through Heterogeneous Sensing Nodes," IEEE Wireless Communication Letters, vol. 4, pp. 14 - 17, 2015.
  33. W. Abbas and M. Egerstedt, "Characterizing Heterogeneity in Cooperative Networks from a Resource Distribution View-point," Communications in Information and Systems, vol. 14,, pp. 1 - 22, 2014.
  34. ​S. Mohsin, N. Sheikh, and W. Abbas, "MRI Induced Heating of Artificial Bone Implants,"Journal of Electromagnetic Waves and Applications (Taylor & Francis),vol. 23, pp. 799 - 808, 2009.​​​

Book Chapters

  1. L. Sela and W. Abbas, "Sensing Technologies for Water Distribution Networks," Encyclopedia of Systems and Control, J. Baillieul and T. Samad (Eds.), Springer, London, 2020.
  2. W. Abbas, A. Laszka, and X. Koutsoukos, "Resilient Wireless Sensor Networks for Cyber-Physical Systems," Cyber-Physical System Design with Sensor Networking Technologies, S. Zeadally and N. Jabeur (Eds.), The Institution of Engineering and Technology (IET), 2016.

Technical Reports

  1. M. Shabbir. W. Abbas, and A.Y. Yazicioglu, "On the Computation of a Lower Bound on Strong Structural Controllability in Networks" , 2019.
  2. ​F. Ghawash and W. Abbas,  "Leveraging Diversity for Achieving Resilient Consensus in Sparse Networks," 2019.