Dr Frank Langbein

2025

• Greatrix, T. et al. 2025. High-confidence labelling of pathology reports using LLM-based unanimous ensembles with limited data. Presented at: International Conference of AI in Healthcare Cambridge 8-10 September 2025. Proceedings of the Artificial Intelligence in Healthcare. Lecture Notes in Computer Science Springer. , pp.381-395. (10.1007/978-3-032-00652-3_27)
• Weidner, C. A. et al., 2025. Energy landscape shaping for robust control of atoms in optical lattices. New Journal of Physics 27 (6) 064503. (10.1088/1367-2630/addc0d)
• Weidner, C. et al., 2025. Robust quantum control in closed and open systems: Theory and practice. Automatica 172 111987. (10.1016/j.automatica.2024.111987)
• Alwadee, E. J. et al. 2025. LATUP-Net: A lightweight 3D attention U-Net with parallel convolutions for brain tumor segmentation. Computers in Biology and Medicine 184 109353. (10.1016/j.compbiomed.2024.109353)
• Ma, Z. et al. 2025. The impact of training data on MRS metabolite quantification with deep learning. Presented at: ISMRM & ISMRT Annual Meeting & Exhibition 2025 Honolulu, Hawaii, USA 10-15 May 2025.

2024

• O'Neil, S. P. et al., 2024. Robustness of dynamic quantum control: Differential sensitivity bounds. AVS Quantum Science 6 (3) 032001. (10.1116/5.0196110)
• Muftah, A. , Shermer, S. and Langbein, F. 2024. Texture feature analysis for classification of early-stage prostate cancer in mpMRI. Presented at: First International Conference on Artificial Intelligence in Healthcare Swansea, UK 4-6 September 2024. Published in: Xie, X. et al., Artificial Intelligence in Healthcare. Vol. 14976.Lecture Notes in Computer Science Vol. 14976. Springer. (10.1007/978-3-031-67285-9_9)
• Alwadee, E. et al. 2024. Assessing and enhancing the robustness of brain tumor segmentation using a probabilistic deep learning architecture [Abstract]. Proceedings of the 2024 ISMRM & ISMRT Annual Meeting (4526), pp.1-6. (10.58530/2024/4526)
• O'Neil, S. et al., 2024. Time-domain sensitivity of the tracking error. IEEE Transactions on Automatic Control 69 (4), pp.2340-2351. (10.1109/TAC.2023.3331681)

2023

• Khalid, I. et al. 2023. Sample-efficient model-based reinforcement learning for quantum control. Physical Review Research 5 (4) 043002. (10.1103/PhysRevResearch.5.043002)
• O'Neil, S. P. et al., 2023. Robustness of energy landscape control to dephasing. Research Directions: Quantum Technologies 1 e13. (10.1017/qut.2023.6)
• O'Neil, S. P. et al., 2023. Robustness of energy landscape controllers for spin rings under coherent excitation transport. Research Directions: Quantum Technologies 1 e12. (10.1017/qut.2023.5)
• O'Neil, S. P. et al., 2023. Analyzing and unifying robustness measures for excitation transfer control in spin networks. IEEE Control Systems Letters 7 , pp.2475-1456. (10.1109/LCSYS.2023.3279797)
• Khalid, I. et al., 2023. Sample-efficient model-based reinforcement learning for quantum control. Sample-efficient Model-based Reinforcement Learning for Quantum Control (10.48550/arXiv.2304.09718)
• Khalid, I. et al. 2023. Statistically characterizing robustness and fidelity of quantum controls and quantum control algorithms. Physical Review A 107 032606. (10.1103/PhysRevA.107.032606)

2022

• Schirmer, S. G. et al., 2022. Robust control performance for open quantum systems. IEEE Transactions on Automatic Control 67 (11), pp.6012-6024. (10.1109/TAC.2022.3181249)
• Langbein, F. 2022. Finding and characterising robust quantum controls. Presented at: Bristol Quantum Information Technologies Workshop (BQIT 2022) Bristol, England 25-28 April 2022.
• Rompokos, A. A. , Langbein, F. C. and Jonckheere, E. 2022. Information transfer in spintronics networks under worst case uncertain parameter errors. Presented at: IEEE 61st Conference on Decision and Control (CDC) Cancún, Mexico 6-9 December 2022. 2022 IEEE 61st Conference on Decision and Control (CDC). IEEE. , pp.5824-5830. (10.1109/CDC51059.2022.9993088)
• Weidner, C. A. et al., 2022. Applying classical control techniques to quantum systems: entanglement versus stability margin and other limitations. Presented at: IEEE Conference Decision and Control 2022 Cancún, Mexico 6-9 December 2022. IEEE 61st Conference on Decision and Control (CDC). IEEE. , pp.5813-5818. (10.1109/CDC51059.2022.9992337)

2021

• Khalid, I. et al. 2021. Reinforcement learning vs. gradient-based optimisation for robust energy landscape control of spin-1/2 quantum networks. Presented at: 60th IEEE Conference of Decision and Control (CDC 2021) Austin, TX, USA 13-15 December 2021.
• Langbein, F. C. 2021. Learning to control quantum systems robustly. Presented at: AI3SD Autumn Seminar 2021 - Quantum Machine Learning Virtual 10 November 2021.
• Schirmer, S. G. et al., 2021. Robustness of quantum systems subject to decoherence: structured singular value analysis?. Presented at: 60th IEEE Conference of Decision and Control (CDC 2021) Austin, TX, USA 14-17 December 2021. Proceedings of the 60th Conference on Decision and Control. IEEE. , pp.4158-4163. (10.1109/CDC45484.2021.9682796)
• Langbein, F. 2021. Finding and characterising robust quantum controls. Presented at: 2nd European Quantum Technologies Virtual Conference (EQTC 2021) Virtual 29 November - 02 December 2021.

2020

• Jonckheere, E. , Schirmer, S. and Langbein, F. 2020. Effect of quantum mechanical global phase factor on error vs sensitivity limitation in quantum routing. Presented at: 58th IEEE Conf. Decision and Control (CDC 2019) Nice, France 11th-13th December 2019. Proceedings of 58th IEEE Conference on Decision and Control (CDC 2019). IEEE. , pp.1339-1344. (10.1109/CDC40024.2019.9029913)

2019

• Thorpe, B. et al., 2019. Temperature affected non-equilibrium spin transport in nanoscale In0.3Ga0.7As transistors. Presented at: 20th International Workshop on Computational Nanotechnology (IWCN) Evanston, IL, USA 20-24 May 2019. Book of Abstracts: 20th International Workshop on Computational Nanotechnology. Wien: Institute for Microelectronics. , pp.43-44.
• Jenkins, C. et al. 2019. Quantification of edited magnetic resonance spectroscopy: a comparative phantom based study of analysis methods. Presented at: ISMRM 27th Annual Meeting & Exhibition Montréal, QC, Canada 11-16 May 2019. Proceedings of the ISMRM 27th Annual Meeting & Exhibition. Vol. 27.Vol. 2232. ISMRM
• Evans, J. E. et al., 2019. Dilute magnetic contact for a spin GaN HEMT. Presented at: Semiconductor and Integrated OptoElectronics Conference (SIOE) Conference Cardiff, UK 16-18 April 2019. Semiconductor and Integrated OptoElectronics Conference (SIOE) Conference.

2018

• Schirmer, S. G. , Jonckheere, E. A. and Langbein, F. C. 2018. Design of feedback control laws for information transfer in spintronics networks. IEEE Transactions on Automatic Control 63 (8), pp.2523-2536. (10.1109/TAC.2017.2777187)
• Schirmer, S. et al., 2018. Robustness of energy landscape control for spin networks under decoherence. Presented at: IEEE 57th Annual Conference on Decision and Control (CDC) Miami Beach, FL, USA 17-19 December 2018. IEEE.
• Jonckheere, E. , Schirmer, S. and Langbein, F. 2018. Jonckheere-Terpstra test for nonclassical error versus log-sensitivity relationship of quantum spin network controllers. International Journal of Robust and Nonlinear Control 28 (6), pp.2383-2403. (10.1002/rnc.4022)
• Rahimi, N. et al., 2018. CAD Model simplification error estimation for electrostatics problems. SIAM Journal on Scientific Computing 40 (1), pp.B196-B227. (10.1137/16M1078641)
• O'Neil, S. et al., 2018. Sensitivity and robustness of quantum spin-1/2 rings to parameter uncertainty. Presented at: IEEE 56th Annual Conference on Decision and Control (CDC) 2017 Melbourne, Australia 12-15 December 2017. IEEE 56th Annual Conference on Decision and Control (CDC) 2017. IEEE. , pp.6137-6142. (10.1109/CDC.2017.8264584)

2017

• Jonckheere, E. A. , Schirmer, S. G. and Langbein, F. C. 2017. Structured singular value analysis for spintronics network information transfer control. IEEE Transactions on Automatic Control 62 (12), pp.6568-6574. (10.1109/TAC.2017.2714623)
• Thorpe, B. et al., 2017. Monte Carlo simulations of spin transport in a strained nanoscale InGaAs field effect transistor. Journal of Applied Physics 122 (22) 223903. (10.1063/1.4994148)
• Thorpe, B. et al., 2017. Spin recovery in the 25nm gate length InGaAs field effect transistore. Presented at: International Workshop on Computational Nanotechnology Windermere, UK 6-9 June 2017. Proc. International Workshop on Computational Nanotechnology. , pp.168-169.

2015

• Jonckheere, E. , Langbein, F. C. and Schirmer, S. G. 2015. Information transfer fidelity in spin networks and ring-based quantum routers. Quantum Information Processing 14 , pp.4751-4785. (10.1007/s11128-015-1136-4)
• Langbein, F. C. , Schirmer, S. and Jonckheere, E. 2015. Time optimal information transfer in spintronics networks. Presented at: 2015 IEEE 54th Annual Conference on Decision and Control (CDC) Osaka, Japan 15-18 December 2015. 2015 IEEE 54th Annual Conference on Decision and Control (CDC) December 15-18, 2015. Osaka, Japan. IEEE. , pp.6454-6459.
• Niu, Z. et al., 2015. Rapidly finding CAD features using database optimization. Computer-Aided Design 69 , pp.35-50. (10.1016/j.cad.2015.08.001)
• Schirmer, S. G. and Langbein, F. C. 2015. Ubiquitous problem of learning system parameters for dissipative two-level quantum systems: Fourier analysis versus Bayesian estimation. Physical Review A 91 (2), pp.-. 022125. (10.1103/PhysRevA.91.022125)
• Niu, Z. et al. 2015. Applying database optimization technologies to feature recognition in CAD. Computer-aided design and applications 12 (3), pp.373-382. (10.1080/16864360.2014.981468)

2014

• Jonckheere, E. , Langbein, F. C. and Schirmer, S. 2014. Quantum networks: anti-core of spin chains. Quantum Information Processing 13 , pp.1607-1637. (10.1007/s11128-014-0755-5)
• Schirmer, S. and Langbein, F. C. 2014. Characterization and control of quantum spin chains and rings. Presented at: 2014 6th International Symposium on Communications, Control and Signal Processing (ISCCSP) Athens 21 - 23 May 2014. Communications, Control and Signal Processing (ISCCSP), 2014 6th International Symposium on. IEEE. , pp.615-619. (10.1109/ISCCSP.2014.6877950)

2013

• Quinn, J. A. et al. 2013. Generalized anisotropic stratified surface sampling. IEEE Transactions on Visualization and Computer Graphics 19 (7), pp.1143-1157. (10.1109/TVCG.2012.305)
• Tam, G. K. L. et al., 2013. Registration of 3D point clouds and meshes: A survey from rigid to nonrigid. IEEE Transactions on Visualization and Computer Graphics 19 (7), pp.1199-1217. (10.1109/TVCG.2012.310)
• Wu, J. et al. 2013. Making bas-reliefs from photographs of human faces. Computer-Aided Design 45 (3), pp.671-682. (10.1016/j.cad.2012.11.002)

2012

• Jonckheere, E. , Langbein, F. C. and Schirmer, S. G. 2012. Curvature of quantum rings. Presented at: 5th International Symposium on Communications Control and Signal Processing (ISCCSP Rome, Italy 2-4 May 2012. Communications Control and Signal Processing (ISCCSP), 2012 5th International Symposium on. IEEE. , pp.1-6. (10.1109/ISCCSP.2012.6217863)
• Quinn, J. A. et al. 2012. Improved initialisation for centroidal Voronoi tessellation and optimal Delaunay triangulation. Computer-Aided Design 44 (11), pp.1062-1071. (10.1016/j.cad.2012.05.002)

2011

• Jonckheere, E. , Schirmer, S. G. and Langbein, F. C. 2011. Geometry and curvature of spin networks. Presented at: 2011 IEEE Multi-Conference on Systems and Control Denver, CO, USA 28-30 September 2011. 2011 IEEE International Conference on Control Applications (CCA). Los Alamitos, CA: IEEE. , pp.786-791. (10.1109/CCA.2011.6044395)

2010

• Li, M. , Langbein, F. C. and Martin, R. R. 2010. Detecting design intent in approximate CAD models using symmetry. Computer-Aided Design 42 (3), pp.183-201. (10.1016/j.cad.2009.10.001)
• Li, W. , Martin, R. R. and Langbein, F. C. 2010. Merging and smoothing machining boundaries on cutter location surfaces. Presented at: 14th ACM Symposium on Solid and Physical Modeling Haifa, Israel 1-3 September 2010. Published in: Keyser, J. and Kim, M. eds. Proceedings of the 14th ACM Symposium on Solid and Physical Modeling, 1-3 September 2010, Haifa, Israel. New York: ACM. , pp.165-170. (10.1145/1839778.1839803)
• Schirmer, S. G. and Langbein, F. C. 2010. Quantum system identification: Hamiltonian estimation using spectral and Bayesian analysis. Presented at: 4th International Symposium on Communications, Control and Signal Processing (ISCCSP 2010) Limassol, Cyprus 3-5 March 2010. Published in: Constantinides, A. G. and Mitra, S. K. eds. Proceedings of the 4th International Symposium on Communications, Control and Signal Processing (ISCCSP) 2010. Los Alamitos, CA: IEEE(10.1109/ISCCSP.2010.5463437)

2009

• Li, W. , Martin, R. R. and Langbein, F. C. 2009. Molds for meshes: computing smooth parting lines and undercut removal. IEEE Transactions on Automation Science and Engineering 6 (3), pp.423-432. (10.1109/TASE.2009.2021324)
• Sun, X. et al. 2009. Bas-relief generation using adaptive histogram equalization. IEEE Transactions on Visualization and Computer Graphics 15 (4), pp.642-653. (10.1109/TVCG.2009.21)
• Sun, X. et al. 2009. Noise analysis and synthesis for 3D laser depth scanners. Graphical Models 71 (2), pp.34-48. (10.1016/j.gmod.2008.12.002)
• Sun, X. et al. 2009. Random walks for feature-preserving mesh denoising. Computer Aided Geometric Design 25 (7), pp.437-456. (10.1016/j.cagd.2007.12.008)

2008

• Sun, X. et al. 2008. Noise in 3D laser range scanner data. Presented at: 10th International Conference on Shape Modeling and Applications Stony Brook, NY, USA 4-6 June 2008. Published in: Michela Spagnuolo, M. , Cohen-Or;, D. and Gu, X. D. G. eds. Shape Modeling and Applications, 2008. SMI 2008. IEEE International Conference. Los Alamitos, CA: IEEE Computer Society. , pp.37-45. (10.1109/SMI.2008.4547945)
• Langbein, F. C. , Li, M. and Martin, R. R. 2008. A comment on 'constructing regularity feature trees for solid models'. Lecture Notes in Computer Science 4975 , pp.603. (10.1007/978-3-540-79246-8_53)
• Li, M. , Langbein, F. C. and Martin, R. R. 2008. Detecting approximate symmetries of discrete point subsets. Computer-Aided Design 40 (1), pp.76-93. (10.1016/j.cad.2007.06.007)

2007

• Sun, X. et al. 2007. Fast and Effective Feature-Preserving Mesh Denoising. IEEE Transactions on Visualization and Computer Graphics 13 (5), pp.925-938. (10.1109/TVCG.2007.1065)
• Li, M. , Langbein, F. C. and Martin, R. R. 2007. Detecting approximate incomplete symmetries in discrete point sets. Presented at: ACM Symposium on Solid and Physical Modeling Beijing, China 4-6 June 2007. Proceedings, SPM 2007 : ACM Symposium on Solid and Physical Modeling : Beijing, China, June 04-06, 2007. New York, USA: Association for Computing Machinery. , pp.335-340. (10.1145/1236246.1236294)
• Li, W. , Martin, R. R. and Langbein, F. C. 2007. Generating smooth parting lines for mold design for meshes. Presented at: ACM Symposium on Solid and Physical Modeling Beijing, China 4-6 June 2007. Proceedings, SPM 2007: ACM Symposium on Solid and Physical Modeling : Beijing, China, June 04-06, 2007. New York, USA: Association for Computing Machinery. , pp.193-204. (10.1145/1236246.1236274)
• Liu, S. et al. 2007. Background surface estimation for reverse engineering of reliefs. International Journal of CAD/CAM 7 (1), pp.1-17.
• Liu, S. et al. 2007. Segmenting geometric reliefs from textured background surfaces. Computer-aided design and applications 4 (5), pp.565-583.
• Liu, S. et al. 2007. Segmenting periodic reliefs on triangle meshes. Presented at: 12th IMA International Conference Sheffield, UK 4-6 September 2007. Mathematics of surfaces XII : 12th IMA international conference, Sheffield, UK, September 4-6, 2007 : proceedings. Lecture notes in computer science Vol. 4647. Berlin, Germany: Springer. , pp.290-306. (10.1007/978-3-540-73843-5_18)
• Quinn, J. A. , Langbein, F. C. and Martin, R. R. 2007. Low-discrepancy point sampling of meshes for rendering. Presented at: Eurographics/IEEE VGTC Symposium on Point-based graphics 2007 Prague, Czech Republic 2-3 September 2007. Point-based graphics 2007 : Eurographics/IEEE VGTC Symposium proceedings, Prague, Czech Republic, September 2-3, 2007. Aire-la-Ville, Switzerland: Eurographics. , pp.19-28. (10.2312/SPBG/SPBG07/019-028)
• Sun, X. et al. 2007. Random walks for mesh denoising. Presented at: SPM 2007: ACM Symposium on Solid and Physical Modeling Beijing, China 4-6 June 2007. Proceedings, SPM 2007 : ACM Symposium on Solid and Physical Modeling : Beijing, China, June 04-06, 2007. New York, USA: Association for Computing Machinery. , pp.11-22. (10.1145/1236246.1236252)

2006

• Li, M. , Langbein, F. C. and Martin, R. R. 2006. Constructing regularity feature trees for solid models. Presented at: Geometric Modeling and Processing (GMP 2006) Pittsburgh, PA, USA 26-28 July 2006. Published in: Kim, M. S. and Shimada, K. eds. Geometric Modeling and Processing-GMP 2006. Lecture notes in computer science Vol. 4077. Berlin-Heidelberg: Springer Verlag. , pp.267-286. (10.1007/11802914_19)
• Liu, S. et al. 2006. Segmenting reliefs on triangle meshes. Presented at: SPM 2006: ACM Symposium on Solid and Physical Modeling Cardiff, UK 6-8 June 2006. Proceedings, SPM 2006 : ACM Symposium on Solid and Physical Modeling : Cardiff, Wales, United Kingdom, June 06-08, 2006. Vol. SPM06.New York, USA: Association for Computing Machinery. , pp.7-16. (10.1145/1128888.1128890)
• Quinn, J. A. et al. 2006. Density-controlled sampling of parametric surfaces using adaptive space-filling curves. Presented at: Geometric Modeling and Processing (GMP 2006) Pittsburgh, PA, USA 26-28 July 2006. Published in: Kim, M. and Shimada, K. eds. Geometric Modeling and Processing - GMP 2006. Lecture notes in computer science Vol. 4077. Berlin-Heidelberg: Springer Verlag. , pp.465-484. (10.1007/11802914_33)

2004

• Langbein, F. C. , Marshall, A. D. and Martin, R. R. 2004. Choosing Consistent Constraints for Beautification of Reverse Engineered Geometric Models. Computer-Aided Design 36 (3), pp.261-278. (10.1016/S0010-4485(03)00108-8)
• Gao, C. H. et al., 2004. Local topological beautification of reverse engineered models. Computer-Aided Design 36 (13), pp.1337-1355. (10.1016/j.cad.2004.02.004)
• Gao, C. et al., 2004. Partial approximate symmetry detection of geometric model. Materials Science Forum 471/2 , pp.702-706. (10.4028/www.scientific.net/MSF.471-472.702)
• Langbein, F. C. et al. 2004. Topological and geometric beautification of reverse engineered geometric models. Presented at: 9th ACM Symposium on Solid Modeling and Applications Genoa, Italy 9-11 June 2004. Published in: Fellner, D. W. et al., Solid Modeling 2004. Aire- la- Ville, Switzerland: Eurographics Association. , pp.255-260.

2003

• Gao, C. et al., 2003. Approximate congruence detection of model features for reverse engineering. Presented at: Shape Modeling International Conference 2003 12-15 May 2003. Proceedings of the Shape Modeling International Conference 2003. IEEE. , pp.69-77. (10.1109/SMI.2003.1199603)

2002

• Langbein, F. C. , Marshall, A. D. and Martin, R. R. 2002. Numerical methods for beautification of reverse engineered geometric models. Presented at: Geometric Modeling and Processing Wako, Saitama, Japan 10-12 July 2002. Proceedings of Geometric Modeling and Processing. IEEE. , pp.159-168. (10.1109/GMAP.2002.1027507)

2001

• Langbein, F. C. et al. 2001. Approximate Geometric Regularities. International Journal of Shape Modeling 7 (2), pp.129-162. (10.1142/S0218654301000096)
• Mills, B. I. et al., 2001. Approximate Symmetry Detection for Reverse Engineering. Presented at: Proceedings of the 6th ACM Symposium on Solid Modeling and Applications(10.1145/376957.376985)
• Langbein, F. C. et al. 2001. Finding approximate shape regularities for reverse engineering. Journal of Computing and Information Science in Engineering 1 (4), pp.282-290. (10.1115/1.1430232)
• Langbein, F. C. et al. 2001. Recognizing geometric patterns for beautification of reconstructed solid models. Presented at: SMI 2001 International Conference on Shape Modeling and Applications Genova, Italy 7-11 May 2001. Proceedings of the SMI 2001 International Conference on Shape Modeling and Applications. IEEE. , pp.10-19. (10.1109/SMA.2001.923370)
• Langbein, F. C. et al. 2001. Finding approximate shape regularities in reverse engineered solid models bounded by simple surfaces. Presented at: ACM Symposium on Solid and Physical Modeling Ann Arbor, MI, USA 4-8 June 2001. Published in: Anderson, D. C. ed. Proceedings of the sixth ACM symposium on Solid modeling and applications (SMA '01). New York: ACM. , pp.206-215. (10.1145/376957.376981)