Imre J. Rudas
Orcid: 0000-0002-2067-8578
According to our database1,
Imre J. Rudas
authored at least 235 papers
between 1991 and 2024.
Collaborative distances:
Collaborative distances:
Awards
IEEE Fellow
IEEE Fellow 2002, "For contributions to the theory and applications of computational intelligence for the control of electro-mechanical and robotic systems.".
Timeline
Legend:
Book In proceedings Article PhD thesis Dataset OtherLinks
Online presence:
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on orcid.org
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on id.loc.gov
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on uni-obuda.hu
On csauthors.net:
Bibliography
2024
Parallel intelligence in three decades: a historical review and future perspective on ACP and cyber-physical-social systems.
Artif. Intell. Rev., September, 2024
Sensors, July, 2024
Event-Triggered Control for Networked Lurie Control Systems Subject to Periodic Denial-of-Service Attacks and Time Delays.
IEEE Trans. Control. Netw. Syst., June, 2024
Adaptive Extended State Observer-Based Velocity-Free Servo Tracking Control With Friction Compensation.
IEEE Trans. Syst. Man Cybern. Syst., January, 2024
IEEE Trans. Syst. Man Cybern. Syst., January, 2024
Increasing the Robustness of Deep Learning Models for Object Segmentation: A Framework for Blending Automatically Annotated Real and Synthetic Data.
IEEE Trans. Cybern., January, 2024
Hybrid Stealthy Attacks on Stochastic Event-Based Remote Estimation Under Packet Dropouts.
IEEE Trans. Netw. Sci. Eng., 2024
New Similarity Correlation Functions for Sets and Binary Data Based on Jaccard Similarity Measure.
Proceedings of the 18th IEEE International Symposium on Applied Computational Intelligence and Informatics, 2024
2023
Master-Slave Synchronous Control of Dual-Drive Gantry Stage With Cogging Force Compensation.
IEEE Trans. Syst. Man Cybern. Syst., 2023
The odyssey to next-generation computers: cognitive computers (κC) inspired by the brain and powered by intelligent mathematics.
Frontiers Comput. Sci., 2023
Computación y Sistemas (CyS), 2023
Model Predictive Control with Dynamic Positive Input Extension for Artificial Pancreas Applications.
Proceedings of the IEEE International Conference on Systems, Man, and Cybernetics, 2023
2022
Disturbance Observer-Based Adaptive Fuzzy Control for Strict-Feedback Nonlinear Systems With Finite-Time Prescribed Performance.
IEEE Trans. Fuzzy Syst., 2022
Similarity Correlation of Frequency Distributions of Categorical Data in Analysis of Cognitive Decline Severity in Asthmatics.
Computación y Sistemas, 2022
Parameter estimation of T1DM models with a particular focus on endogenous glucose production.
Proceedings of the IEEE International Conference on Systems, Man, and Cybernetics, 2022
2021
Systems Science and Engineering Research in the Context of Systems, Man, and Cybernetics: Recollection, Trends, and Future Directions.
IEEE Trans. Syst. Man Cybern. Syst., 2021
IEEE Trans. Syst. Man Cybern. Syst., 2021
Asynchronous Sampled-Data Filtering Design for Fuzzy-Affine-Model-Based Stochastic Nonlinear Systems.
IEEE Trans. Cybern., 2021
Towards a theoretical framework of autonomous systems underpinned by intelligence and systems sciences.
IEEE CAA J. Autom. Sinica, 2021
On the Philosophical, Cognitive and Mathematical Foundations of Symbiotic Autonomous Systems (SAS).
CoRR, 2021
2020
Command Filter-Based Adaptive NN Control for MIMO Nonlinear Systems With Full-State Constraints and Actuator Hysteresis.
IEEE Trans. Cybern., 2020
Comput. Appl. Eng. Educ., 2020
Appl. Soft Comput., 2020
Proceedings of the 2020 IEEE International Conference on Systems, Man, and Cybernetics, 2020
2019
Discrete LPV Based Parameter Estimation For TIDM Patients By Using Dual Extended Kalman Filtering Method.
Proceedings of the 2019 IEEE International Conference on Systems, Man and Cybernetics, 2019
Situation Awareness and System Trust Affecting Handover Processes in Self-Driving Cars up to Level 3 Autonomy.
Proceedings of the IEEE International Work Conference on Bioinspired Intelligence, 2019
2018
IEEE Robotics Autom. Mag., 2018
J. Medical Robotics Res., 2018
A Feasible Genetic Optimization Strategy for Parametric Interval Type-2 Fuzzy Logic Systems.
Int. J. Fuzzy Syst., 2018
Corrigendum to "Receding Horizon Control of Type 1 Diabetes Mellitus by Using Nonlinear Programming".
Complex., 2018
Complex., 2018
Proceedings of the IEEE International Conference on Systems, Man, and Cybernetics, 2018
2017
Editorial: Complimentary Address.
J. Adv. Comput. Intell. Intell. Informatics, 2017
Proceedings of the New Trends in Intelligent Software Methodologies, Tools and Techniques, 2017
Proceedings of the 2017 IEEE International Conference on Systems, Man, and Cybernetics, 2017
Proceedings of the 2017 IEEE International Conference on Systems, Man, and Cybernetics, 2017
Proceedings of the 2017 IEEE International Conference on Systems, Man, and Cybernetics, 2017
Proceedings of the Advances in Service and Industrial Robotics, 2017
Stiffness Characterization of Biological Tissues by Means of MEMS-Technology Based Micro Grippers Under Position Control.
Proceedings of the Advances in Service and Industrial Robotics, 2017
Proceedings of the Fuzzy Logic in Intelligent System Design, 2017
2016
Teacher's Kit: Development, Usability, and Communities of Modular Robotic Kits for Classroom Education.
IEEE Robotics Autom. Mag., 2016
Surface deformation and reaction force estimation of liver tissue based on a novel nonlinear mass-spring-damper viscoelastic model.
Medical Biol. Eng. Comput., 2016
Proceedings of the Recent Developments and the New Direction in Soft-Computing Foundations and Applications, 2016
New Approach to Multidisciplinary Content Driving of Engineering Model System Component Generation.
Proceedings of the New Trends in Software Methodologies, Tools and Techniques, 2016
Tackling complexity and missing information in adaptive control by fixed point transformation-based approach.
Proceedings of the 2016 IEEE International Conference on Systems, Man, and Cybernetics, 2016
Proceedings of the 2016 IEEE International Conference on Systems, Man, and Cybernetics, 2016
Proceedings of the 2016 IEEE International Conference on Systems, Man, and Cybernetics, 2016
Proceedings of the 2016 IEEE International Conference on Systems, Man, and Cybernetics, 2016
Investigation of the TP-based modeling possibility of a nonlinear ICU diabetes model.
Proceedings of the 2016 IEEE International Conference on Systems, Man, and Cybernetics, 2016
Proceedings of the 11th IEEE International Symposium on Applied Computational Intelligence and Informatics, 2016
2015
Proceedings of the Springer Handbook of Computational Intelligence, 2015
Int. J. Fuzzy Syst., 2015
Int. J. Fuzzy Syst., 2015
Proceedings of the 2015 IEEE International Conference on Systems, 2015
LMI-Based Feedback Regulator Design via TP Transformation for Fluid Volume Control in Blood Purification Therapies.
Proceedings of the 2015 IEEE International Conference on Systems, 2015
Proceedings of the 2015 IEEE International Conference on Systems, 2015
Tensor Product Based Convex Polytopic Modeling of Nonlinear Insulin-Glucose Dynamics.
Proceedings of the 2015 IEEE International Conference on Systems, 2015
Proceedings of the 2015 IEEE International Conference on Systems, 2015
Proceedings of the 13th IEEE International Symposium on Intelligent Systems and Informatics, 2015
Proceedings of the 13th IEEE International Symposium on Intelligent Systems and Informatics, 2015
Proceedings of the 10th IEEE Jubilee International Symposium on Applied Computational Intelligence and Informatics, 2015
The Hungarian NASA researcher in the field of space robotics - Life work of Antal K. Bejczy.
Proceedings of the 10th IEEE Jubilee International Symposium on Applied Computational Intelligence and Informatics, 2015
Proceedings of the 10th IEEE Jubilee International Symposium on Applied Computational Intelligence and Informatics, 2015
Proceedings of the 10th IEEE Jubilee International Symposium on Applied Computational Intelligence and Informatics, 2015
Proceedings of the 10th IEEE Jubilee International Symposium on Applied Computational Intelligence and Informatics, 2015
Proceedings of the Advances in Robot Design and Intelligent Control, 2015
Proceedings of the 2015 Annual Conference of the North American Fuzzy Information Processing Society (NAFIPS) held jointly with 2015 5th World Conference on Soft Computing (WConSC), 2015
Proceedings of the International Conference on Recent Achievements in Mechatronics, 2015
Proceedings of the Technological Innovation for Cloud-Based Engineering Systems, 2015
Proceedings of the New Trends on System Sciences and Engineering, 2015
Proceedings of the Computer Aided Systems Theory - EUROCAST 2015, 2015
Proceedings of the 14th European Control Conference, 2015
Adaptive PD fuzzy control with dynamic learning rate for two-wheeled balancing six degrees of freedom robotic arm.
Proceedings of the IEEE International Conference on Automation Science and Engineering, 2015
2014
Learning the optimal parameter of the Hamacher t-norm applied for fuzzy-rule-based model extraction.
Neural Comput. Appl., 2014
Model-based angiogenic inhibition of tumor growth using modern robust control method.
Comput. Methods Programs Biomed., 2014
Proceedings of the Intelligent Software Methodologies, Tools and Techniques, 2014
Proceedings of the New Trends in Software Methodologies, Tools and Techniques, 2014
Proceedings of the 2014 IEEE International Conference on Systems, Man, and Cybernetics, 2014
Proceedings of the 2014 IEEE International Conference on Systems, Man, and Cybernetics, 2014
Proceedings of the 2014 IEEE International Conference on Systems, Man, and Cybernetics, 2014
Proceedings of the IEEE 12th International Symposium on Intelligent Systems and Informatics, 2014
Proceedings of the IEEE 12th International Symposium on Intelligent Systems and Informatics, 2014
Proceedings of the IEEE 12th International Symposium on Intelligent Systems and Informatics, 2014
Proceedings of the IEEE 12th International Symposium on Intelligent Systems and Informatics, 2014
Proceedings of the 9th IEEE International Symposium on Applied Computational Intelligence and Informatics, 2014
Proceedings of the 9th IEEE International Symposium on Applied Computational Intelligence and Informatics, 2014
Proceedings of the 23rd International Conference on Robotics in Alpe-Adria-Danube Region, 2014
Robust Fixed Point Transformation based design for Model Reference Adaptive Control of a modified TORA system.
Proceedings of the 2014 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2014
Merged physical and virtual reality in collaborative virtual workspaces: The VirCA approach.
Proceedings of the IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society, Dallas, TX, USA, October 29, 2014
Proceedings of the 2014 IEEE International Symposium on Intelligent Control, 2014
2013
Knowl. Based Syst., 2013
Knowl. Based Syst., 2013
On the monotone sum of basic t-norms in the construction of parametric families of digital conjunctors for fuzzy systems with reconfigurable logic.
Knowl. Based Syst., 2013
J. Adv. Comput. Intell. Intell. Informatics, 2013
Int. J. Adv. Intell. Paradigms, 2013
Proceedings of the Advance Trends in Soft Computing, 2013
Proceedings of the Advance Trends in Soft Computing, 2013
Proceedings of the Advance Trends in Soft Computing, 2013
Proceedings of the 8th International Conference on System of Systems Engineering, 2013
Proceedings of the IEEE International Conference on Systems, 2013
A novel method for new membership function calculation in HOSVD-based reduction to improve the operation needs.
Proceedings of the IEEE 11th International Symposium on Intelligent Systems and Informatics, 2013
On the simulation of RFPT-based adaptive control of systems of 4<sup>th</sup> order response.
Proceedings of the IEEE 11th International Symposium on Intelligent Systems and Informatics, 2013
Proceedings of the IEEE 11th International Symposium on Intelligent Systems and Informatics, 2013
Proceedings of the IEEE 8th International Symposium on Applied Computational Intelligence and Informatics, 2013
Robust radial basis function networks based on least trimmed squares-support vector regression.
Proceedings of the Joint IFSA World Congress and NAFIPS Annual Meeting, 2013
Proceedings of the Joint IFSA World Congress and NAFIPS Annual Meeting, 2013
Elevated level design intent and behavior driven feature definition for product modeling.
Proceedings of the IECON 2013, 2013
Managing Dynamism of Multimodal Detection in Machine Vision Using Selection of Phenotypes.
Proceedings of the Computer Aided Systems Theory - EUROCAST 2013, 2013
Proceedings of the 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2013
2012
Coordinated and Recorded Human Interactions for Enhanced Intelligence in Product Model.
Proceedings of the Recent Advances in Intelligent Engineering Systems, 2012
Proceedings of the IEEE International Conference on Systems, Man, and Cybernetics, 2012
Proceedings of the IEEE International Conference on Systems, Man, and Cybernetics, 2012
Proceedings of the 10th IEEE Jubilee International Symposium on Intelligent Systems and Informatics, 2012
Proceedings of the 10th IEEE Jubilee International Symposium on Intelligent Systems and Informatics, 2012
Proceedings of the 10th IEEE Jubilee International Symposium on Intelligent Systems and Informatics, 2012
Mental Ontology model for medical diagnosis based on some intuitionistic fuzzy functions.
Proceedings of the 10th IEEE Jubilee International Symposium on Intelligent Systems and Informatics, 2012
Proceedings of the 7th IEEE International Symposium on Applied Computational Intelligence and Informatics, 2012
Proceedings of the 7th IEEE International Symposium on Applied Computational Intelligence and Informatics, 2012
Proceedings of the 7th IEEE International Symposium on Applied Computational Intelligence and Informatics, 2012
Pusher reheating furnace control via fuzzy-neural model predictive control synthesis.
Proceedings of the 6th IEEE International Conference on Intelligent Systems, 2012
Proceedings of the 6th IEEE International Conference on Intelligent Systems, 2012
A min-max control synthesis for uncertain nonlinear systems based on fuzzy T-S model.
Proceedings of the 6th IEEE International Conference on Intelligent Systems, 2012
Proceedings of the 38th Annual Conference on IEEE Industrial Electronics Society, 2012
Proceedings of the IEEE 3rd International Conference on Cognitive Infocommunications, 2012
Proceedings of the IEEE 3rd International Conference on Cognitive Infocommunications, 2012
2011
Proceedings of the IEEE International Conference on Systems, 2011
Proceedings of the IEEE International Conference on Systems, 2011
Proceedings of the 6th IEEE International Symposium on Applied Computational Intelligence and Informatics, 2011
Decentralized Adaptive Control with Fractional Order Elimination of Obsolete Information.
Proceedings of the 4th International Conference on Emerging Trends in Engineering and Technology, 2011
Proceedings of the 4th International Conference on Emerging Trends in Engineering and Technology, 2011
Proceedings of the Computer Aided Systems Theory - EUROCAST 2011, 2011
2010
FPGA Implementation of Fuzzy System with Parametric Membership Functions and Parametric Conjunctions.
Proceedings of the Advances in Soft Computing, 2010
Proceedings of the FUZZ-IEEE 2010, 2010
Proceedings of the FUZZ-IEEE 2010, 2010
2009
Proceedings of the Towards Intelligent Engineering and Information Technology, 2009
Engineering Objective-Driven Product Lifecycle Management with Enhanced Human Control.
Proceedings of the Towards Intelligent Engineering and Information Technology, 2009
Proceedings of the Towards Intelligent Engineering and Information Technology, 2009
Approximation by Shepard type pseudo-linear operators and applications to Image Processing.
Int. J. Approx. Reason., 2009
Proceedings of the IEEE International Conference on Systems, 2009
Proceedings of the 5th International Symposium on Applied Computational Intelligence and Informatics, 2009
Proceedings of the 5th International Symposium on Applied Computational Intelligence and Informatics, 2009
Proceedings of the 5th International Symposium on Applied Computational Intelligence and Informatics, 2009
Proceedings of the MICAI 2009: Advances in Artificial Intelligence, 2009
Proceedings of the Joint 2009 International Fuzzy Systems Association World Congress and 2009 European Society of Fuzzy Logic and Technology Conference, 2009
Proceedings of the Joint 2009 International Fuzzy Systems Association World Congress and 2009 European Society of Fuzzy Logic and Technology Conference, 2009
Proceedings of the Computer Aided Systems Theory, 2009
Decoupled fixed point transformation based adaptive control of the generalized 2 DOF Φ<sup>6</sup>-type Van der Pol oscillator.
Proceedings of the 10th European Control Conference, 2009
2008
Proceedings of the 3rd IEEE International Conference on System of Systems Engineering, 2008
Proceedings of the IEEE International Conference on Systems, 2008
Proceedings of the MICAI 2008: Advances in Artificial Intelligence, 2008
Proceedings of the 8th International Conference on Hybrid Intelligent Systems (HIS 2008), 2008
Proceedings of the FUZZ-IEEE 2008, 2008
2007
Comparison of Fractional Robust- and Fixed Point Transformations- Based Adaptive Compensation of\Dynamic Friction.
J. Adv. Comput. Intell. Intell. Informatics, 2007
Inf. Sci., 2007
Proceedings of the 2nd IEEE International Conference on System of Systems Engineering, 2007
Proceedings of the IEEE International Conference on Systems, 2007
Proceedings of the 4th International Symposium on Applied Computational Intelligence and Informatics, 2007
Proceedings of the 4th International Symposium on Applied Computational Intelligence and Informatics, 2007
Proceedings of the 4th International Symposium on Applied Computational Intelligence and Informatics, 2007
Proceedings of the Robot Motion and Control 2007, 2007
Proceedings of the Foundations of Fuzzy Logic and Soft Computing, 2007
2006
J. Univers. Comput. Sci., 2006
Geometric Identification and Control of Nonlinear Dynamic Systems Based on Floating Basis Vector Representation.
J. Adv. Comput. Intell. Intell. Informatics, 2006
J. Adv. Comput. Intell. Intell. Informatics, 2006
Int. J. Comput. Commun. Control, 2006
Communication and corporate information intensive integrated modeling for engineering at extended companies.
Proceedings of the 1st IEEE/SMC International Conference on System of Systems Engineering, 2006
An Integrated Description for Intelligent Processing of Closely Related Engineering Objects.
Proceedings of the IEEE International Conference on Systems, 2006
Proceedings of the IEEE International Conference on Fuzzy Systems, 2006
2005
Nonconventional processing of noisy signals in the adaptive control of hydraulic differential servo cylinders.
IEEE Trans. Instrum. Meas., 2005
J. Adv. Comput. Intell. Intell. Informatics, 2005
J. Adv. Comput. Intell. Intell. Informatics, 2005
Intelligent Computing for the Management of Changes in Industrial Engineering Modeling Processes.
Comput. Artif. Intell., 2005
Proceedings of the IEEE International Conference on Systems, 2005
Associativity, Adaptivity and Behavior Aspects in Modeling for Manufacturing Related Robot Systems.
Proceedings of the 2005 IEEE International Conference on Robotics and Automation, 2005
Proceedings of the Computer Aided Systems Theory, 2005
2004
A Combined Solution of the Inverse Kinematic Task in the Vicinity of the Singularities.
J. Adv. Comput. Intell. Intell. Informatics, 2004
Possibilities for Application of Associative Objects with Built-in Intelligence in Engineering Modeling.
J. Adv. Comput. Intell. Intell. Informatics, 2004
Adaptive Nonlinear Vibration Damping Inspired by the Concept of Fractional Derivatives.
Proceedings of the Second Workshop on Intelligent Solutions in Embedded Systems, 2004
Proceedings of the IEEE International Conference on Systems, 2004
Adaptive control of a dynamic system having unmodeled and unconstrained internal degree of freedom.
Proceedings of the Fourth International Workshop on Robot Motion and Control, 2004
Proceedings of the 2004 IEEE International Conference on Robotics and Automation, 2004
2003
Proceedings of the IEEE International Conference on Systems, 2003
Novel approach in the adaptive control of systems having strongly nonlinear coupling between their umnodeled internal degrees of freedom.
Proceedings of the 2003 IEEE International Conference on Robotics and Automation, 2003
2002
IEEE Trans. Fuzzy Syst., 2002
Proceedings of the IEEE International Conference on Systems, Man and Cybernetics, Yasmine Hammamet, Tunisia, October 6-9, 2002, 2002
Feature Driven Associative Part and Machining Process Models.
Proceedings of the Knowledge and Technology Integration in Production and Services: Balancing Knowledge in Product and Service Life Cycle, 2002
Novel Adaptive Control of Mechanical Systems Driven by Electromechanical Hydraulic Drives.
Proceedings of the Knowledge and Technology Integration in Production and Services: Balancing Knowledge in Product and Service Life Cycle, 2002
Proceedings of the 2002 IEEE International Conference on Robotics and Automation, 2002
Proceedings of the 2002 IEEE International Conference on Fuzzy Systems, 2002
2001
Symplectic Geometry Based Simple Algebraic Possibilities for Developing Adaptive Control for Mechanical Systems.
J. Adv. Comput. Intell. Intell. Informatics, 2001
J. Adv. Comput. Intell. Intell. Informatics, 2001
J. Adv. Comput. Intell. Intell. Informatics, 2001
J. Adv. Comput. Intell. Intell. Informatics, 2001
Integration of Human Intent Model Descriptions in Product Models.
Proceedings of the Digital Enterprise Challenges: Life-Cycle Approach to Management and Production, IFIP TC5 / WG5.2 & WG5.3 Eleventh International PROLAMAT Conference on Digital Enterprise, 2001
Proceedings of the IEEE/RSJ International Conference on Intelligent Robots and Systems, 2001
Proceedings of the 2001 IEEE International Conference on Robotics and Automation, 2001
2000
Simultaneous Optimization of the External Loop Parameters in an Adaptive Control Based on the Co-operation of Uniform Procedures.
J. Adv. Comput. Intell. Intell. Informatics, 2000
J. Adv. Comput. Intell. Intell. Informatics, 2000
J. Adv. Comput. Intell. Intell. Informatics, 2000
Proceedings of the IEEE International Conference on Systems, 2000
Non-Conventional Integration of the Fundamental Elements of Soft Computing and Traditional Methods in Adaptive Robot Control.
Proceedings of the 2000 IEEE International Conference on Robotics and Automation, 2000
1999
A New Utilization of the Hamiltonian Formalism in the Adaptive Control of Mechanical Systems Under External Perturbation.
Intell. Autom. Soft Comput., 1999
Formally Non-Exact Analytical Modeling of Mechanical Systems and Environmental Interactions in an Adaptive Control.
Proceedings of the 1999 IEEE International Conference on Robotics and Automation, 1999
A Novel Computationally Intelligent Architecture for Identification and Control of Nonlinear Systems.
Proceedings of the 1999 IEEE International Conference on Robotics and Automation, 1999
1998
Intelligent Computer Methods for Modeling of Manufacturing Processes and Human Intent.
J. Adv. Comput. Intell. Intell. Informatics, 1998
Proceedings of the IEEE International Conference on Systems, Man and Cybernetics, 1998
Evaluation of Petri net process model representation as a tool of virtual manufacturing.
Proceedings of the IEEE International Conference on Systems, Man and Cybernetics, 1998
Representation of human intent in product models.
Proceedings of the Intelligent Systems for Manufacturing: Multi-Agent Systems and Virtual Organizations, Proceedings of the BASYS, 1998
1997
Group theoretical approach in using canonical transformations and symplectic geometry in the control of approximately modelled mechanical systems interacting with an unmodelled environment.
Robotica, 1997
Fuzzy parameter adaptation for a sliding mode controller as applied to the control of an articulated arm.
Proceedings of the 1997 IEEE International Conference on Robotics and Automation, 1997
On the tuning of the free parameters of a new adaptive robot control based on geometric principles of Hamiltonian mechanics.
Proceedings of the Proceedings 1997 IEEE International Symposium on Computational Intelligence in Robotics and Automation CIRA'97, 1997
1996
Robotica, 1996
Robotics Auton. Syst., 1996
Improvement of fuzzy logic robot controllers using inverse entropy based T-operations.
Proceedings of the 1996 IEEE International Conference on Robotics and Automation, 1996
1993
Proceedings of 1993 IEEE/RSJ International Conference on Intelligent Robots and Systems, 1993
Possibilities of Application of Machine Learning in Manufacturing Process Planning.
Proceedings of the Knowledge Based Hybrid Systems, 1993
1992
Proceedings of the IEEE/RSJ International Conference on Intelligent Robots and Systems, 1992
1991
Proceedings of the IEEE/RSJ International Conference on Intelligent Robots and Systems, 1991