Knut Åkesson - RankMe

113 papers A* 3A 2B 2C 9Journal 47Unranked 50

Year	Rank	Type	Title / Venue / Authors
2026	—	`conf`	Collision-Free Navigation of Mobile Robots via Quadtree-Based Model Predictive Control. SII Osama Al Sheikh Ali, Sotiris Koutsoftas, Ze Zhang, Knut Åkesson, Emmanuel Dean
2026	—	`conf`	Combining High Level Scheduling and Low Level Control to Manage Fleets of Mobile Robots. SII Sabino Francesco Roselli, Ze Zhang, Knut Åkesson
2026	J	`jnl`	Decoupling Task and Behavior: A Two-Stage Reward Curriculum in Reinforcement Learning for Robotics. CoRR Kilian Freitag, Knut Åkesson, Morteza Haghir Chehreghani
2026	J	`jnl`	MVUDA: Unsupervised Domain Adaptation for Multi-view Pedestrian Detection. Mach. Vis. Appl. Erik Brorsson, Lennart Svensson, Kristofer Bengtsson, Knut Åkesson
2026	J	`jnl`	Optimal Control-Based Falsification of Learnt Dynamics via Neural ODEs and Symbolic Regression. CoRR Lasse Kötz, Jonas Sjöberg, Knut Åkesson
2026	J	`jnl`	Proactive Local-Minima-Free Robot Navigation: Blending Motion Prediction With Safe Control. IEEE Robotics Autom. Lett. Yifan Xue, Ze Zhang, Knut Åkesson, Nadia Figueroa
2026	J	`jnl`	Proactive Local-Minima-Free Robot Navigation: Blending Motion Prediction with Safe Control. CoRR Yifan Xue, Ze Zhang, Knut Åkesson, Nadia Figueroa
2025	J	`jnl`	Collision-Free Navigation of Mobile Robots via Quadtree-Based Model Predictive Control. CoRR Osama Al Sheikh Ali, Sotiris Koutsoftas, Ze Zhang, Knut Åkesson, Emmanuel Dean
2025	J	`jnl`	Combining High Level Scheduling and Low Level Control to Manage Fleets of Mobile Robots. CoRR Sabino Francesco Roselli, Ze Zhang, Knut Åkesson
2025	J	`jnl`	Falsification of Cyber-physical Systems Using Bayesian Optimization. ACM Trans. Embed. Comput. Syst. Zahra Ramezani, Kenan Sehic, Luigi Nardi, Knut Åkesson
2025	J	`jnl`	Future-Oriented Navigation: Dynamic Obstacle Avoidance With One-Shot Energy-Based Multimodal Motion Prediction. IEEE Robotics Autom. Lett. Ze Zhang, Georg Hess, Junjie Hu, Emmanuel Dean, Lennart Svensson, Knut Åkesson
2025	J	`jnl`	Future-Oriented Navigation: Dynamic Obstacle Avoidance with One-Shot Energy-Based Multimodal Motion Prediction. CoRR Ze Zhang, Georg Hess, Junjie Hu, Emmanuel Dean, Lennart Svensson, Knut Åkesson
2025	A	`conf`	Gradient Field-Based Dynamic Window Approach for Collision Avoidance in Complex Environments. IROS Ze Zhang, Yifan Xue, Nadia Figueroa, Knut Åkesson
2025	J	`jnl`	Gradient Field-Based Dynamic Window Approach for Collision Avoidance in Complex Environments. CoRR Ze Zhang, Yifan Xue, Nadia Figueroa, Knut Åkesson
2025	J	`jnl`	Infrastructure-based Autonomous Mobile Robots for Internal Logistics - Challenges and Future Perspectives. CoRR Erik Brorsson, Kristian Ceder, Ze Zhang, Sabino Francesco Roselli, Endre Erós, Martin Dahl, Beatrice Alenljung, Jessica Lindblom, Thanh Bui, Emmanuel Dean, Lennart Svensson, Kristofer Bengtsson, Per-Lage Götvall, Knut Åkesson
2025	—	`conf`	Towards Fair Employee-Job Assignments in Final Assembly Stations. ICPS Endre Erós, Atieh Hanna, Nastasja Sosdean, Knut Åkesson
2024	A	`conf`	Bird's-Eye-View Trajectory Planning of Multiple Robots using Continuous Deep Reinforcement Learning and Model Predictive Control. IROS Kristian Ceder, Ze Zhang, Adam Burman, Ilya Kuangaliyev, Krister Mattsson, Gabriel Nyman, Arvid Petersén, Lukas Wisell, Knut Åkesson
2024	J	`jnl`	Conflict-free electric vehicle routing problem: an improved compositional algorithm. Discret. Event Dyn. Syst. Sabino Francesco Roselli, Martin Fabian, Knut Åkesson
2024	B	`conf`	ECAP: Extensive Cut-and-Paste Augmentation for Unsupervised Domain Adaptive Semantic Segmentation. ICIP Erik Brorsson, Knut Åkesson, Lennart Svensson, Kristofer Bengtsson
2024	J	`jnl`	ECAP: Extensive Cut-and-Paste Augmentation for Unsupervised Domain Adaptive Semantic Segmentation. CoRR Erik Brorsson, Knut Åkesson, Lennart Svensson, Kristofer Bengtsson
2024	J	`jnl`	MVUDA: Unsupervised Domain Adaptation for Multi-view Pedestrian Detection. CoRR Erik Brorsson, Lennart Svensson, Kristofer Bengtsson, Knut Åkesson
2024	J	`jnl`	On Input Generators for Cyber-Physical Systems Falsification. IEEE Trans. Comput. Aided Des. Integr. Circuits Syst. Zahra Ramezani, Alexandre Donzé, Martin Fabian, Knut Åkesson
2024	J	`jnl`	Sample-Efficient Curriculum Reinforcement Learning for Complex Reward Functions. CoRR Kilian Freitag, Kristian Ceder, Rita Laezza, Knut Åkesson, Morteza Haghir Chehreghani
2023	—	`conf`	Collision-Free Trajectory Planning of Mobile Robots by Integrating Deep Reinforcement Learning and Model Predictive Control. CASE Ze Zhang, Yao Cai, Kristian Ceder, Arvid Enliden, Ossian Eriksson, Soleil Kylander, Rajath Sridhara, Knut Åkesson
2023	C	`conf`	Fault localization for intelligent automation systems. ETFA Endre Erós, Kristofer Bengtsson, Knut Åkesson
2023	J	`jnl`	Prescient Collision-Free Navigation of Mobile Robots With Iterative Multimodal Motion Prediction of Dynamic Obstacles. IEEE Robotics Autom. Lett. Ze Zhang, Hadi Hajieghrary, Emmanuel Dean, Knut Åkesson
2023	—	`conf`	Structural Coverability for Intelligent Automation Systems. CASE Endre Erós, Kristofer Bengtsson, Knut Åkesson
2022	J	`jnl`	A Compositional Algorithm for the Conflict-Free Electric Vehicle Routing Problem. CoRR Sabino Francesco Roselli, Per-Lage Götvall, Martin Fabian, Knut Åkesson
2022	J	`jnl`	A Compositional Algorithm for the Conflict-Free Electric Vehicle Routing Problem. IEEE Trans Autom. Sci. Eng. Sabino Francesco Roselli, Per-Lage Götvall, Martin Fabian, Knut Åkesson
2022	—	`conf`	Centralized versus Distributed Nonlinear Model Predictive Control for Online Robot Fleet Trajectory Planning. CASE Filip Bertilsson, Martin Gordon, Johan Hansson, Daniel Möller, Daniel Söderberg, Ze Zhang, Knut Åkesson
2022	J	`jnl`	Falsification of Cyber-Physical Systems using Bayesian Optimization. CoRR Zahra Ramezani, Kenan Sehic, Luigi Nardi, Knut Åkesson
2022	—	`conf`	Multi-Requirement Testing Using Focused Falsification. HSCC Johan Lidén Eddeland, Alexandre Donzé, Knut Åkesson
2022	—	`conf`	Multimodal Motion Prediction Based on Adaptive and Swarm Sampling Loss Functions for Reactive Mobile Robots. CASE Ze Zhang, Emmanuel Dean, Yiannis Karayiannidis, Knut Åkesson
2022	J	`jnl`	Technical Report: The effect of Input Parameters on Falsification of Cyber-Physical Systems. CoRR Zahra Ramezani, Knut Åkesson
2022	J	`jnl`	Testing Cyber-Physical Systems Using a Line-Search Falsification Method. IEEE Trans. Comput. Aided Des. Integr. Circuits Syst. Zahra Ramezani, Koen Claessen, Nicholas Smallbone, Martin Fabian, Knut Åkesson
2021	—	`conf`	An SMT Based Compositional Algorithm to Solve a Conflict-Free Electric Vehicle Routing Problem. CASE Sabino Francesco Roselli, Martin Fabian, Knut Åkesson
2021	J	`jnl`	An SMT Based Compositional Algorithm to Solve a Conflict-Free Electric Vehicle Routing Problem. CoRR Sabino Francesco Roselli, Martin Fabian, Knut Åkesson
2021	—	`conf`	Modelling and analysis of product platforms and assembly sequences with respect to variability. CASE Amir Hossein Ebrahimi, Knut Åkesson
2021	—	`conf`	Motion Prediction Based on Multiple Futures for Dynamic Obstacle Avoidance of Mobile Robots. CASE Ze Zhang, Emmanuel Dean, Yiannis Karayiannidis, Knut Åkesson
2021	J	`jnl`	On the Use of Equivalence Classes for Optimal and Suboptimal Bin Packing and Bin Covering. IEEE Trans Autom. Sci. Eng. Sabino Francesco Roselli, Fredrik Hagebring, Sarmad Riazi, Martin Fabian, Knut Åkesson
2021	—	`conf`	Solving the Conflict-Free Electric Vehicle Routing Problem Using SMT Solvers. MED Sabino Francesco Roselli, Martin Fabian, Knut Åkesson
2021	J	`jnl`	Solving the Conflict-Free Electric Vehicle Routing Problem Using SMT Solvers. CoRR Sabino Francesco Roselli, Martin Fabian, Knut Åkesson
2021	—	`conf`	Temporal Logic Falsification of Cyber-Physical Systems using Input Pulse Generators. ARCH@ADHS Zahra Ramezani, Alexandre Donzé, Martin Fabian, Knut Åkesson
2021	—	`conf`	Trajectory Generation for Mobile Robots in a Dynamic Environment using Nonlinear Model Predictive Control. CASE Jonas Berlin, Georg Hess, Anton Karlsson, William Ljungbergh, Ze Zhang, Knut Åkesson, Per-Lage Götvall
2020	—	`conf`	Compact Representation of Time-Index Job Shop Problems Using a Bit-Vector Formulation. CASE Sabino Francesco Roselli, Kristofer Bengtsson, Knut Åkesson
2020	—	`conf`	Comparison of Exact and Approximate methods for the Vehicle Routing Problem with Time Windows. CASE Elinor Jernheden, Carl Lindström, Rickard Persson, Max Wedenmark, Endre Erós, Sabino Francesco Roselli, Knut Åkesson
2020	J	`jnl`	Enhancing Temporal Logic Falsification With Specification Transformation and Valued Booleans. IEEE Trans. Comput. Aided Des. Integr. Circuits Syst. Johan Lidén Eddeland, Koen Claessen, Nicholas Smallbone, Zahra Ramezani, Sajed Miremadi, Knut Åkesson
2020	—	`conf`	Evaluating Optimization Solvers and Robust Semantics for Simulation-Based Falsification. ARCH Johan Lidén Eddeland, Sajed Miremadi, Knut Åkesson
2020	—	`conf`	Industrial Temporal Logic Specifications for Falsification of Cyber-Physical Systems. ARCH Johan Lidén Eddeland, Alexandre Donzé, Sajed Miremadi, Knut Åkesson
2019	—	`conf`	Comparative Case Studies of Reactive Synthesis and Supervisory Control. ECC Zahra Ramezani, Jonas Krook, Zhennan Fei, Martin Fabian, Knut Åkesson
2019	J	`jnl`	Enhancing Temporal Logic Falsification with Specification Transformation and Valued Booleans. CoRR Johan Lidén Eddeland, Koen Claessen, Nicholas Smallbone, Zahra Ramezani, Sajed Miremadi, Knut Åkesson
2019	C	`conf`	Evaluating Two Semantics for Falsification using an Autonomous Driving Example. INDIN Zahra Ramezani, Nicholas Smallbone, Martin Fabian, Knut Åkesson
2019	—	`conf`	On the Use of Equivalence Classes for Optimal and Sub-Optimal Bin Covering. CASE Sabino Francesco Roselli, Fredrik Hagebring, Sarmad Riazi, Martin Fabian, Knut Åkesson
2019	—	`conf`	SMT Solvers for Flexible Job-Shop Scheduling Problems: A Computational Analysis. CASE Sabino Francesco Roselli, Kristofer Bengtsson, Knut Åkesson
2019	C	`conf`	Training Convolutional Neural Networks with Synthesized Data for Object Recognition in Industrial Manufacturing. ETFA Jason Li, Per-Lage Götvall, Julien Provost, Knut Åkesson
2018	—	`conf`	Applying Valued Booleans in Testing of Cyber-Physical Systems. MT@CPSWeek Koen Claessen, Nicholas Smallbone, Johan Lidén Eddeland, Zahra Ramezani, Knut Åkesson, Sajed Miremadi
2018	—	`conf`	Evaluation of Photogrammetry for Use in Industrial Production Systems. CASE Jason Li, Jonatan Berglund, Felix Auris, Atieh Hanna, Johan Vallhagen, Knut Åkesson
2018	—	`conf`	SMT Solvers for Job-Shop Scheduling Problems: Models Comparison and Performance Evaluation. CASE Sabino Francesco Roselli, Kristofer Bengtsson, Knut Åkesson
2017	J	`jnl`	Guest Editorial Special Section on the 2015 International Conference on Automation Science and Engineering. IEEE Trans Autom. Sci. Eng. Martin Fabian, Bengt Lennartson, Knut Åkesson
2017	—	`conf`	Objective functions for falsification of signal temporal logic properties in cyber-physical systems. CASE Johan Lidén Eddeland, Sajed Miremadi, Martin Fabian, Knut Åkesson
2016	J	`jnl`	Formulating constraint satisfaction problems for the inspection of configuration rules. Artif. Intell. Eng. Des. Anal. Manuf. Anna Tidstam, Johan Malmqvist, Alexey Voronov, Knut Åkesson, Martin Fabian
2015	J	`jnl`	A BDD-Based Approach for Designing Maximally Permissive Deadlock Avoidance Policies for Complex Resource Allocation Systems. IEEE Trans Autom. Sci. Eng. Zhennan Fei, Spyros A. Reveliotis, Sajed Miremadi, Knut Åkesson
2015	C	`conf`	Formal analysis of product variability and the effects on assembly operations. ETFA Amir Hossein Ebrahimi, Knut Åkesson, Pierre E. C. Johansson, Thomas Lezama
2015	J	`jnl`	Symbolic Supervisory Control of Timed Discrete Event Systems. IEEE Trans. Control. Syst. Technol. Sajed Miremadi, Zhennan Fei, Knut Åkesson, Bengt Lennartson
2015	—	`conf`	Symbolic computation of boundary unsafe states in complex resource allocation systems using partitioning techniques. CASE Zhennan Fei, Knut Åkesson, Spyros A. Reveliotis
2014	—	`conf`	A Symbolic Approach for Maximally Permissive Deadlock Avoidance in Complex Resource Allocation Systems. WODES Zhennan Fei, Spyros A. Reveliotis, Knut Åkesson
2014	J	`jnl`	An empirical study of control logic specifications for programmable logic controllers. Empir. Softw. Eng. Oscar Ljungkrantz, Knut Åkesson, Martin Fabian, Amir Hossein Ebrahimi
2014	—	`conf`	Challenges in product family knowledge modeling and analysis: from product design to manufacturing. FOSD Amir Hossein Ebrahimi, Pierre E. C. Johansson, Knut Åkesson
2014	J	`jnl`	Efficient Symbolic Supervisor Synthesis for Extended Finite Automata. IEEE Trans. Control. Syst. Technol. Zhennan Fei, Sajed Miremadi, Knut Åkesson, Bengt Lennartson
2014	J	`jnl`	Supervisory Control for State-Vector Transition Models - A Unified Approach. IEEE Trans Autom. Sci. Eng. Bengt Lennartson, Francesco Basile, Sajed Miremadi, Zhennan Fei, Mona Noori Hosseini, Martin Fabian, Knut Åkesson
2014	J	`jnl`	Symbolic Representation and Computation of Timed Discrete-Event Systems. IEEE Trans Autom. Sci. Eng. Sajed Miremadi, Zhennan Fei, Knut Åkesson, Bengt Lennartson
2014	—	`conf`	Symbolic computation and representation of deadlock avoidance policies for complex resource allocation systems with application to multithreaded software. CDC Zhennan Fei, Knut Åkesson, Spyros A. Reveliotis
2013	—	`conf`	Multi-view hand tracking using epipolar geometry-based consistent labeling for an industrial application. ICDSC Yixiao Yun, Irene Yu-Hua Gu, Julien Provost, Knut Åkesson
2013	—	`conf`	Online Support for Shop-Floor Operators Using Body Movements Tracking. IFAC HMS Julien Provost, Amir Hossein Ebrahimi, Knut Åkesson
2012	J	`jnl`	A BDD-Based Approach for Modeling Plant and Supervisor by Extended Finite Automata. IEEE Trans. Control. Syst. Technol. Sajed Miremadi, Bengt Lennartson, Knut Åkesson
2012	—	`conf`	A symbolic approach to large-scale discrete event systems modeled as finite automata with variables. CASE Zhennan Fei, Sajed Miremadi, Knut Åkesson, Bengt Lennartson
2012	J	`jnl`	Sequence Planning Using Multiple and Coordinated Sequences of Operations. IEEE Trans Autom. Sci. Eng. Kristofer Bengtsson, Patrik Bergagard, Carl Thorstensson, Bengt Lennartson, Knut Åkesson, Chengyin Yuan, Sajed Miremadi, Petter Falkman
2012	C	`conf`	State-vector transition model applied to supervisory control. ETFA Bengt Lennartson, Sajed Miremadi, Zhennan Fei, Mona Noori Hosseini, Martin Fabian, Knut Åkesson
2012	—	`conf`	Symbolic computation of nonblocking control function for timed discrete event systems. CDC Sajed Miremadi, Zhennan Fei, Knut Åkesson, Bengt Lennartson
2012	J	`jnl`	Towards Industrial Formal Specification of Programmable Safety Systems. IEEE Trans. Control. Syst. Technol. Oscar Ljungkrantz, Knut Åkesson, Chengyin Yuan, Martin Fabian
2012	—	`conf`	Verification of Item Usage Rules in Product Configuration. PLM Alexey Voronov, Anna Tidstam, Knut Åkesson, Johan Malmqvist
2011	—	`conf`	BDD-based supervisory control on extended finite automata. CASE Sajed Miremadi, Bengt Lennartson, Knut Åkesson
2011	—	`conf`	Efficient Symbolic Supervisory Synthesis and Guard Generation - Evaluating Partitioning Techniques for the State-space Exploration. ICAART (1) Zhennan Fei, Sajed Miremadi, Knut Åkesson, Bengt Lennartson
2011	—	`conf`	Enumeration of Valid Partial Configurations. Configuration Workshop Alexey Voronov, Knut Åkesson, Fredrik Ekstedt
2011	—	`conf`	Modeling sequential resource allocation systems using Extended Finite Automata. CASE Zhennan Fei, Sajed Miremadi, Knut Åkesson
2011	J	`jnl`	Nonblocking and Safe Control of Discrete-Event Systems Modeled as Extended Finite Automata. IEEE Trans Autom. Sci. Eng. Lucien Ouedraogo, Ratnesh Kumar, Robi Malik, Knut Åkesson
2011	J	`jnl`	Symbolic Computation of Reduced Guards in Supervisory Control. IEEE Trans Autom. Sci. Eng. Sajed Miremadi, Knut Åkesson, Bengt Lennartson
2011	—	`conf`	Symbolic State-Space Exploration and Guard Generation in Supervisory Control Theory. ICAART (Revised Selected Papers) Zhennan Fei, Sajed Miremadi, Knut Åkesson, Bengt Lennartson
2011	A*	`conf`	Symbolic reachability computation using the disjunctive partitioning technique in Supervisory Control Theory. ICRA Zhennan Fei, Knut Åkesson, Bengt Lennartson
2010	J	`jnl`	Formal Specification and Verification of Industrial Control Logic Components. IEEE Trans Autom. Sci. Eng. Oscar Ljungkrantz, Knut Åkesson, Martin Fabian, Chengyin Yuan
2010	—	`conf`	Modular specification of forbidden states for supervisory control. WODES Patrik Magnusson, Martin Fabian, Knut Åkesson
2010	J	`jnl`	On Formal Analysis of IEC 61499 Applications, Part A: Modeling. IEEE Trans. Ind. Informatics Goran Cengic, Knut Åkesson
2010	J	`jnl`	On Formal Analysis of IEC 61499 Applications, Part B: Execution Semantics. IEEE Trans. Ind. Informatics Goran Cengic, Knut Åkesson
2010	—	`conf`	Relations identification and visualization for sequence planning and automation design. CASE Kristofer Bengtsson, Carl Thorstensson, Bengt Lennartson, Knut Åkesson, Chengyin Yuan, Sajed Miremadi, Petter Falkman
2010	J	`jnl`	Sequence Planning for Integrated Product, Process and Automation Design. IEEE Trans Autom. Sci. Eng. Bengt Lennartson, Kristofer Bengtsson, Chengyin Yuan, Kristin Andersson, Martin Fabian, Petter Falkman, Knut Åkesson
2010	—	`conf`	Supervisor computation and representation: A case study. WODES Sajed Miremadi, Knut Åkesson, Bengt Lennartson, Martin Fabian
2010	—	`conf`	Symbolic approach to nonblocking and safe control of Extended Finite Automata. CASE Lucien Ouedraogo, Ratnesh Kumar, Robi Malik, Knut Åkesson
2009	J	`jnl`	SAT-Solving in Practice, with a Tutorial Example from Supervisory Control. Discret. Event Dyn. Syst. Koen Claessen, Niklas Eén, Mary Sheeran, Niklas Sörensson, Alexey Voronov, Knut Åkesson
2009	—	`conf`	Verification of process operations using model checking. CASE Alexey Voronov, Knut Åkesson
2008	—	`conf`	Formal specification and verification of components for industrial logic control programming. CASE Oscar Ljungkrantz, Knut Åkesson, Martin Fabian
2007	—	`conf`	A Study of Industrial Logic Control Programming using Library Components. CASE Oscar Ljungkrantz, Knut Åkesson
2007	J	`jnl`	Compositional Synthesis of Maximally Permissive Supervisors Using Supervision Equivalence. Discret. Event Dyn. Syst. Hugo Flordal, Robi Malik, Martin Fabian, Knut Åkesson
2007	A*	`conf`	Implementing a Control System Framework for Automatic Generation of Manufacturing Cell Controllers. ICRA Oscar Ljungkrantz, Knut Åkesson, Johan Richardsson, Kristin Andersson
2007	—	`conf`	Minimization of Expected Cycle Time in Manufacturing Cells with Uncontrollable Behavior. CASE Avenir Kobetski, Johan Richardsson, Knut Åkesson, Martin Fabian
2007	—	`conf`	Modeling of discrete event systems using finite automata with variables. CDC Markus Sköldstam, Knut Åkesson, Martin Fabian
2007	—	`conf`	PLC-based Implementation of Process Observation and Fault Detection for Discrete Event Systems. CASE Tord Alenljung, Markus Sköldstam, Bengt Lennartson, Knut Åkesson
2006	C	`conf`	A Framework for Component Based Distributed Control Software Development Using IEC 61499. ETFA Goran Cengic, Oscar Ljungkrantz, Knut Åkesson
2006	C	`conf`	Formal Modeling of Function Block Applications Running in IEC 61499 Execution Runtime. ETFA Goran Cengic, Oscar Ljungkrantz, Knut Åkesson
2005	—	`conf`	Implementation of full synchronous composition using IEC 61499 function blocks. CASE Goran Cengic, Knut Åkesson, Bengt Lennartson, Chengyin Yuan, Placid Mathew Ferreira
2004	C	`conf`	Supervision of multiple industrial robots: optimal and collision free work cycles. CCA Hugo Flordal, Domenico Spensieri, Knut Åkesson, Martin Fabian
2002	A*	`conf`	Hybrid Computer-Human Supervision of Discrete Event Systems. ICRA Knut Åkesson, S. Jain, Placid M. Ferreira
2000	C	`conf`	Coordination of batches in flexible production. ACC Knut Åkesson, Martin Fabian, Arash Vahidi
1998	B	`conf`	Modular supervisors for deadlock avoidance in batch processes. SMC Michael Tittus, Knut Åkesson