publications

2026

1. ACL

   

   Truth as a Trajectory: What Internal Representations Reveal About Large Language Model Reasoning

   Hamed Damirchi, I. Meza De la Jara, E. Abbasnejad, A. Shamsi, Z. Zhang, and J. Q. Shi

   In Proceedings of the 64th Annual Meeting of the Association for Computational Linguistics (Long Papers), 2026

   Oral · Best Paper nominee Bib HTML Website

   Oral presentation and Best Paper Award nominee at ACL 2026.

   @inproceedings{damirchi2026truth,
     title = {Truth as a Trajectory: What Internal Representations Reveal About Large Language Model Reasoning},
     author = {Damirchi, Hamed and {Meza De la Jara}, I. and Abbasnejad, E. and Shamsi, A. and Zhang, Z. and Shi, J. Q.},
     booktitle = {Proceedings of the 64th Annual Meeting of the Association for Computational Linguistics (Long Papers)},
     pages = {44774--44790},
     year = {2026},
   }

2. arXiv

   Reasoning Errors Have a Region and a Direction in the Residual-Stream Trajectory of LLMs

   Hamed Damirchi, I. Meza De la Jara, D. Ranasinghe, Y. Liu, and J. Shi

   arXiv preprint arXiv:2608.05660, 2026

   arXiv Bib

   @article{damirchi2026reasoning,
     title = {Reasoning Errors Have a Region and a Direction in the Residual-Stream Trajectory of LLMs},
     author = {Damirchi, Hamed and {Meza De la Jara}, I. and Ranasinghe, D. and Liu, Y. and Shi, J.},
     journal = {arXiv preprint arXiv:2608.05660},
     year = {2026},
   }

3. arXiv

   Representation Trajectories Matters: Complementary Evidence for OOD Detection and Image Classification

   I. M. De la Jara, C. Rodriguez-Opazo, Hamed Damirchi, S. Gould, and D. Ranasinghe

   arXiv preprint arXiv:2607.26565, 2026

   arXiv Bib

   @article{delajara2026trajectories,
     title = {Representation Trajectories Matters: Complementary Evidence for OOD Detection and Image Classification},
     author = {{De la Jara}, I. M. and Rodriguez-Opazo, C. and Damirchi, Hamed and Gould, S. and Ranasinghe, D.},
     journal = {arXiv preprint arXiv:2607.26565},
     year = {2026},
   }

4. arXiv

   Vertical Fusion: Condensing Internal Representations for Robust ViT Classification

   F. Di Salvo, S. N. Rai, Hamed Damirchi, I. Meza De la Jara, S. Doerrich, M. Lents, and C. Ledig

   arXiv preprint arXiv:2607.10391, 2026

   arXiv Bib

   @article{disalvo2026vertical,
     title = {Vertical Fusion: Condensing Internal Representations for Robust ViT Classification},
     author = {{Di Salvo}, F. and Rai, S. N. and Damirchi, Hamed and {Meza De la Jara}, I. and Doerrich, S. and Lents, M. and Ledig, C.},
     journal = {arXiv preprint arXiv:2607.10391},
     year = {2026},
   }

2025

1. ICLR

   

   Synergy and Diversity in CLIP: Enhancing Performance Through Adaptive Backbone Ensembling

   C. Rodriguez-Opazo, E. Abbasnejad, D. Teney, Hamed Damirchi, E. Marrese-Taylor, and A. van den Hengel

   In 13th International Conference on Learning Representations (ICLR), 2025

   Bib HTML PDF

   @inproceedings{rodriguezopazo2025synergy,
     title = {Synergy and Diversity in CLIP: Enhancing Performance Through Adaptive Backbone Ensembling},
     author = {Rodriguez-Opazo, C. and Abbasnejad, E. and Teney, D. and Damirchi, Hamed and Marrese-Taylor, E. and {van den Hengel}, A.},
     booktitle = {13th International Conference on Learning Representations (ICLR)},
     year = {2025},
   }

2. arXiv

   Decomposing Task Vectors for Refined Model Editing

   Hamed Damirchi, E. Abbasnejad, Z. Zhang, and J. Shi

   arXiv preprint arXiv:2512.22511, 2025

   arXiv Bib

   @article{damirchi2025decomposing,
     title = {Decomposing Task Vectors for Refined Model Editing},
     author = {Damirchi, Hamed and Abbasnejad, E. and Zhang, Z. and Shi, J.},
     journal = {arXiv preprint arXiv:2512.22511},
     year = {2025},
   }

3. arXiv

   The Quest for Winning Tickets in Low-Rank Adapters

   Hamed Damirchi, C. Rodriguez-Opazo, E. Abbasnejad, Z. Zhang, and J. Shi

   arXiv preprint arXiv:2512.22495, 2025

   arXiv Bib

   @article{damirchi2025quest,
     title = {The Quest for Winning Tickets in Low-Rank Adapters},
     author = {Damirchi, Hamed and Rodriguez-Opazo, C. and Abbasnejad, E. and Zhang, Z. and Shi, J.},
     journal = {arXiv preprint arXiv:2512.22495},
     year = {2025},
   }

2023

1. IROS

   Graph-Based Visual-Kinematic Fusion and Monte Carlo Initialization for Fast-Deployable Cable-Driven Robots

   R. Khorrambakht, Hamed Damirchi, M. R. Dindarloo, A. Saki, S. A. Khalilpour, H. D. Taghirad, and S. Weiss

   In IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2023

   Bib HTML

   @inproceedings{khorrambakht2023graph,
     title = {Graph-Based Visual-Kinematic Fusion and Monte Carlo Initialization for Fast-Deployable Cable-Driven Robots},
     author = {Khorrambakht, R. and Damirchi, Hamed and Dindarloo, M. R. and Saki, A. and Khalilpour, S. A. and Taghirad, H. D. and Weiss, S.},
     booktitle = {IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)},
     pages = {1832--1839},
     year = {2023},
   }

2. CVIU

   Action Capsules: Human skeleton action recognition

   A. F. Bavil, Hamed Damirchi, and H. D. Taghirad

   Computer Vision and Image Understanding, 2023

   Bib HTML

   @article{bavil2023action,
     title = {Action Capsules: Human skeleton action recognition},
     author = {Bavil, A. F. and Damirchi, Hamed and Taghirad, H. D.},
     journal = {Computer Vision and Image Understanding},
     volume = {233},
     pages = {103722},
     year = {2023},
   }

3. ICRA

   

   A Consistency-Based Loss for Deep Odometry Through Uncertainty Propagation

   Hamed Damirchi, R. Khorrambakht, H. D. Taghirad, and B. Moshiri

   In IEEE International Conference on Robotics and Automation (ICRA), 2023

   arXiv Bib HTML

   @inproceedings{damirchi2023consistency,
     title = {A Consistency-Based Loss for Deep Odometry Through Uncertainty Propagation},
     author = {Damirchi, Hamed and Khorrambakht, R. and Taghirad, H. D. and Moshiri, B.},
     booktitle = {IEEE International Conference on Robotics and Automation (ICRA)},
     pages = {11756--11762},
     year = {2023},
   }

4. Workshop

   Independent Modular Networks

   Hamed Damirchi, F. Agostinelli, and P. Jamshidi

   In ICRA 2023 Workshop on effective Representations, Abstractions, and Priors for Robot Learning (RAP4Robots), 2023

   arXiv Bib

   @inproceedings{damirchi2023modular,
     title = {Independent Modular Networks},
     author = {Damirchi, Hamed and Agostinelli, F. and Jamshidi, P.},
     booktitle = {ICRA 2023 Workshop on effective Representations, Abstractions, and Priors for Robot Learning (RAP4Robots)},
     year = {2023},
   }

5. arXiv

   Unveiling Backbone Effects in CLIP: Exploring Representational Synergies and Variances

   C. Rodriguez-Opazo, E. Marrese-Taylor, E. Abbasnejad, Hamed Damirchi, I. M. Jara, F. Bravo-Marquez, and A. van den Hengel

   arXiv preprint arXiv:2312.14400, 2023

   arXiv Bib

   @article{rodriguezopazo2023unveiling,
     title = {Unveiling Backbone Effects in CLIP: Exploring Representational Synergies and Variances},
     author = {Rodriguez-Opazo, C. and Marrese-Taylor, E. and Abbasnejad, E. and Damirchi, Hamed and Jara, I. M. and Bravo-Marquez, F. and {van den Hengel}, A.},
     journal = {arXiv preprint arXiv:2312.14400},
     year = {2023},
   }

6. arXiv

   Zero-shot Retrieval: Augmenting Pre-trained Models with Search Engines

   Hamed Damirchi, C. Rodriguez-Opazo, E. Abbasnejad, D. Teney, J. Q. Shi, S. Gould, and A. van den Hengel

   arXiv preprint arXiv:2311.17949, 2023

   arXiv Bib

   @article{damirchi2023zeroshot,
     title = {Zero-shot Retrieval: Augmenting Pre-trained Models with Search Engines},
     author = {Damirchi, Hamed and Rodriguez-Opazo, C. and Abbasnejad, E. and Teney, D. and Shi, J. Q. and Gould, S. and {van den Hengel}, A.},
     journal = {arXiv preprint arXiv:2311.17949},
     year = {2023},
   }

2022

1. tinyML

   

   IMU Preintegrated Features for Efficient Deep Inertial Odometry

   R. Khorrambakht, Hamed Damirchi, and H. D. Taghirad

   In tinyML Research Symposium, 2022

   arXiv Bib

   @inproceedings{khorrambakht2022imu,
     title = {IMU Preintegrated Features for Efficient Deep Inertial Odometry},
     author = {Khorrambakht, R. and Damirchi, Hamed and Taghirad, H. D.},
     booktitle = {tinyML Research Symposium},
     year = {2022},
   }

2021

1. MSD

   Tip-trajectory tracking control of a deployable cable-driven robot via output redefinition

   S. A. Khalilpour, R. Khorrambakht, Hamed Damirchi, H. D. Taghirad, and P. Cardou

   Multibody System Dynamics, 2021

   Bib HTML

   @article{khalilpour2021tip,
     title = {Tip-trajectory tracking control of a deployable cable-driven robot via output redefinition},
     author = {Khalilpour, S. A. and Khorrambakht, R. and Damirchi, Hamed and Taghirad, H. D. and Cardou, P.},
     journal = {Multibody System Dynamics},
     volume = {52},
     number = {1},
     pages = {31--58},
     year = {2021},
   }

2. arXiv

   Deep Inertial Odometry with Accurate IMU Preintegration

   R. Khorrambakht, C. X. Lu, Hamed Damirchi, Z. Chen, and Z. Li

   arXiv preprint arXiv:2101.07061, 2021

   arXiv Bib

   @article{khorrambakht2021deep,
     title = {Deep Inertial Odometry with Accurate IMU Preintegration},
     author = {Khorrambakht, R. and Lu, C. X. and Damirchi, Hamed and Chen, Z. and Li, Z.},
     journal = {arXiv preprint arXiv:2101.07061},
     year = {2021},
   }

2020

1. ICMLA

   

   ARC-Net: Activity Recognition Through Capsules

   Hamed Damirchi, R. Khorrambakht, and H. D. Taghirad

   In 19th IEEE International Conference on Machine Learning and Applications (ICMLA), 2020

   arXiv Bib HTML Code

   @inproceedings{damirchi2020arcnet,
     title = {ARC-Net: Activity Recognition Through Capsules},
     author = {Damirchi, Hamed and Khorrambakht, R. and Taghirad, H. D.},
     booktitle = {19th IEEE International Conference on Machine Learning and Applications (ICMLA)},
     pages = {1382--1388},
     year = {2020},
   }

2. arXiv

   Exploring Self-Attention for Visual Odometry

   Hamed Damirchi, R. Khorrambakht, and H. D. Taghirad

   arXiv preprint arXiv:2011.08634, 2020

   arXiv Bib

   @article{damirchi2020attention,
     title = {Exploring Self-Attention for Visual Odometry},
     author = {Damirchi, Hamed and Khorrambakht, R. and Taghirad, H. D.},
     journal = {arXiv preprint arXiv:2011.08634},
     year = {2020},
   }

2019

1. ICRoM

   

   ARAS-IREF: An Open-Source Low-Cost Framework for Pose Estimation

   Hamed Damirchi, R. Khorrambakht, and H. D. Taghirad

   In 7th International Conference on Robotics and Mechatronics (ICRoM), 2019

   Best Paper Award Bib HTML

   Best Paper Award at ICRoM 2019.

   @inproceedings{damirchi2019arasiref,
     title = {ARAS-IREF: An Open-Source Low-Cost Framework for Pose Estimation},
     author = {Damirchi, Hamed and Khorrambakht, R. and Taghirad, H. D.},
     booktitle = {7th International Conference on Robotics and Mechatronics (ICRoM)},
     pages = {303--308},
     year = {2019},
   }

2. ICRoM

   

   A Calibration Framework for Deployable Cable Driven Parallel Robots with Flexible Cables

   R. Khorrambakht, Hamed Damirchi, S. A. Khalilpour, and H. D. Taghirad

   In 7th International Conference on Robotics and Mechatronics (ICRoM), 2019

   Bib HTML

   @inproceedings{khorrambakht2019calibration,
     title = {A Calibration Framework for Deployable Cable Driven Parallel Robots with Flexible Cables},
     author = {Khorrambakht, R. and Damirchi, Hamed and Khalilpour, S. A. and Taghirad, H. D.},
     booktitle = {7th International Conference on Robotics and Mechatronics (ICRoM)},
     pages = {552--557},
     year = {2019},
   }

3. ICRoM

   Stabilization of Cable Driven Robots Using Interconnection Matrix: Ensuring Positive Tension

   M. R. J. Harandi, S. A. Khalilpour, Hamed Damirchi, and H. D. Taghirad

   In 7th International Conference on Robotics and Mechatronics (ICRoM), 2019

   Bib HTML

   @inproceedings{harandi2019stabilization,
     title = {Stabilization of Cable Driven Robots Using Interconnection Matrix: Ensuring Positive Tension},
     author = {Harandi, M. R. J. and Khalilpour, S. A. and Damirchi, Hamed and Taghirad, H. D.},
     booktitle = {7th International Conference on Robotics and Mechatronics (ICRoM)},
     pages = {235--240},
     year = {2019},
   }

4. ICEE

   Point-to-Point Motion Control of an Underactuated Planar Cable Driven Robot

   M. R. Jafari Harandi, Hamed Damirchi, S. A. Khalilpour Seyedi, and H. D. Taghirad

   In 27th Iranian Conference on Electrical Engineering (ICEE), 2019

   Bib HTML

   @inproceedings{harandi2019point,
     title = {Point-to-Point Motion Control of an Underactuated Planar Cable Driven Robot},
     author = {{Jafari Harandi}, M. R. and Damirchi, Hamed and {Khalilpour Seyedi}, S. A. and Taghirad, H. D.},
     booktitle = {27th Iranian Conference on Electrical Engineering (ICEE)},
     pages = {979--984},
     year = {2019},
   }