Talks

[2024-08-02] On the well-posedness of (switched) difference algebraic equations, Minicourse at VIASM, Hanoi, Vietnam. [Slides]

[2024-07-05] Contraction analysis for discrete-time singular nonlinear switched systems, The 14th Asian Control Conference (ASCC 2024), Dalian, China [Slides]

[2024-03-05] Singular Switched Systems in Discrete Time: Recent Solution Theory and Open Problems, Visiting Researcher Talk at CDSL SNU, Seoul, Korea. [Slides]

[2023-12-13] Nonlinear singular switched systems in discrete-time: solution theory and incremental stability under restricted switching signals, the 62nd IEEE Conference on Decision and Control, Singapore. [Slides]

[2023-10-30] Singular Switched Systems in Discrete Time: Solvability, Observability, and Reachability Notions, PhD Graduation Talk, Groningen, the Netherlands. [Slides]

[2023-10-16] A Hybrid Probabilistic-Fuzzy Programming for Integrated Raw Material Procurement and Production Planning in Post-pandemic Time, The 7th International Conference on Mathematical Models & Computational Techniques in Science & Engineering (MMCTSE 2023), Athens, Greece. [Slides]

[2023-07-06] Probabilistic Piecewise-objective Optimization Model for Integrated Supplier Selection and Production Planning Problems Involving Discounts and Probabilistic Parameters, The 5th International Conference on Research in Engineering, Technology and Science (ICRETS 2023), Budapest, Hungary. [Slides]

[2023-04-27] Development of a Decision-making Support Model for Order Allocation and Production Planning in Uncertain Environment, The 9th International Conference on Modeling Simulation and Applied Optimization (ICMSAO'23), Marrakech, Morocco. [Slides]

[2023-04-26] A Chance constrained Fuzzy Optimization Model for Enhancing Facultative Ponds: A Case Study at Bantul Wastewater Treatment Plant, The 9th International Conference on Modeling Simulation and Applied Optimization (ICMSAO'23), Marrakech, Morocco. [Slides]

[2022-10-22] A Piecewise-objective Fuzzy-probabilistic Programming Approach for Supplier Selection Problems Involving Discounted Prices/Costs and Uncertain Parameters, The 6th International Symposium on Multidisciplinary Studies and Innovative Technologies (ISMSIT 2022), Ankara, Turkey. [Slides]

[2022-10-19] Chance-constrained Fuzzy Optimization Model for Enhancing Facultative Ponds: A Case Study at BantulWastewater Treatment Plant, The International Seminar on New Paradigm and Innovation on Natural Science and Its Application (ISNPINSA 2022), Semarang, Indonesia. [Slides]

[2022-10-6] The Probabilistic Programming Approach for Procurement and Production Planning in Recovery Time after a Pandemic, The 2022 Interdisciplinary Conference on Mechanics, Computers and Electrics (ICMECE 2022), Barcelona, Spain. [Slides]

[2022-10-03] The Integrated Decision-Making Support for Integrated Supplier Selection and Production Planning Problems with Discounted Prices, The AEIT 2022 International Annual Conference, Rome, Italy. [Slides]

[2022-09-16] A time-varying approach for model reduction of singular linear switched systems in discrete time, the 25th International Symposium on Mathematical Theory of Networks and Systems (MTNS), Bayreuth, Germany. [Slides]

[2021-11-24] The Decision-making Support for Supplier Selection Problems Involving Price Discounts Under Fuzzy Uncertainty Settings: A Single Period Case, International Conference on Informatics and Computational Sciences (ICICoS), Semarang, Indonesia. [Slides]

[2021-10-28] Decision-making Support via (Multi-objective) Fuzzy Programming for Order Allocation and Production Planning: Static Case, The 2021 International Conference on Computer Science, Information Technology and Electrical Engineering (ICOMITEE 2021), Virtual Conference. [Slides]

[2021-10-27] Robust Model Predictive Control Implementation to the Decision-Making Process in Inventory System with Uncertain Demands, The International Conference on Converging Technology in Electrical and Information Engineering (ICCTEIE 2021), Online. [Slides]

[2021-10-20]  Optimization-based Decision-Making Support for Fuzzy and Probabilistic Order Allocation Planning, The 8th International Conference on Electrical Engineering, Computer Science and Informatics (EECSI 2021), Semarang, Indonesia. [Slides]

[2021-10-6] The Fuzzy-programming-based Decision-making Support for Production Planning Problems in Excess Demand and Uncertain Prices in Recovery Time After a Pandemic, The Information Technology International Seminar (ITIS), Surabaya , Indonesia. [Slides]

[2020-09-22] Probabilistic programming with piecewise objective function for solving supplier selection problem with price discount and probabilistic demand, Ahmad Dahlan International Conference Series on Engineering, Science, and Information Technology (ADICS-ESIT 2020), Yogyakarta, Indonesia. [Slides]

[2020-08-12] Determining the Best Optimization Method for Large Scale Probabilistic Supplier Selection Problem Integrated with Inventory Management, The 5th International Conference on Energy, Environment, Epidemiology and Information System (ICENIS), Semarang, Indonesia. [SLides]

[2020-07-29] Control of inventory system with random demand and product damage on delivery via linear quadratic gaussian, The 1st Conference on Internet of Things and Embedded Intelligence (CITEI 2020), Yogyakarta, Indonesia. [Slides]

[2019-10-09] Probabilistic quadratic programming model for Sewon-Bantul facultative ponds optimization, International Conference on Mathematics, Science, and Education (ICMSE 2019), Semarang, Indonesia. [Slides]

[2019-08-07] Algal concentration dynamical model simulation in Sewon, Bantul, Yogyakarta facultative wastewater treatment pond, The 4th International Conference on Energy, Environment, Epidemiology and Information System (ICENIS 2019), Semarang, Indonesia. [Slides]

[2019-07-24] Robust Predictive Control Application and Simulation of Inventory Controlling with Imperfect Delivery Process, International Conference on Information and Communications Technology (ICoIACT 2019), Yogyakarta, Indonesia. [Slides]

[2019-07-12] Probabilistic multi-objective optimization approach to solve production planning and raw material supplier selection problem under probabilistic demand value, THE 6th International Conference on Research, Implementation & Education of Mathematics and Sciences, Yogyakarta, Indonesia. [Slides]

[2019-06-20] Genetic algorithm approach for large scale quadratic programming of probabilistic supplier selection and inventory management problem, International Conference on Science and Science Education (ICONSSE), Salatiga, Indonesia. [SLides]

[2018-09-28] Predictive Control Approach for Restricted Areas Avoidance of Autonomous System,  The 5th International Conference on Information Technology, Computer, and Electrical Engineering (ICITACEE 2018), Semarang, Indonesia. [Slides]

[2018-09-26] Quadratic Programming Model to Solve Integrated Supplier Selection and Inventory Control, International Seminar on New Paradigm and Innovation on Natural Science and Its Application (ISNPINSA), Semarang, Indonesia. [Slides]

[2018-09-04] Comparison of Several Numerical Optimization Methods for Large Scale Probabilistic Supplier Selection Problem with Inventory Management, International Seminar on Mathematics in Industry & International Conference on Theoretical and Applied Statistics (ISMI-ICTAS18), Kuala Lumpur, Malaysia. [Slides]

[2018-08-30] Application of Robust Linear Quadratic Control for Inventory System with Unknown Demand: Single Product Case, The 2nd International Conference on Informatics and Computational Sciences (ICICoS 2018), Semarang, Indonesia. [Slides]

[2018-08-10] Single Product Inventory Control Considering Unknown Demand Using Linear Quadratic Gaussian, The 3th Int. Con. on Robotics, Biomimetics, & Intelligent Computational Systems (ROBIONETICS 2018), Bandung, Indonesia. [Slides]

[2018-08-07] Stock Control of Single Product Inventory System with Imperfect Delivery by Using Robust Linear Quadratic Regulator, the 4th International Conference on Science and Technology (ICST 2018), Yogyakarta, Indonesia. [Slides] 

[2018-07-24] Optimal Decision Making on Raw Material Supplier Selection and Production Planning via MultiobjectiveOptimization Model, 3rd International Conference on Mathematics, Engineering & Industrial Applications 2018 (ICoMEIA2018), Kuala Lumpur, Malaysia. [Slides]

[2018-05-07] Application of Active-set Optimization Method to Solve Stochastic Optimization Problem of Supplier Selection and Inventory Control Problem, The 5th International Conference on Research, Implementation & Education of Mathematics and Sciences, Yogyakarta, Indonesia. [Slides]

[2017-08-21] Expected value based fuzzy programming approach to solve integrated supplier selection and inventory control problem with fuzzy demand, International Conference on Operation Research (INTERIOR), Medan, Indonesia. [Slides]

[2017-08-15] Numerical Solution of a 3-D Advection-Dispersion Model for Dissolved Oxygen Distribution in Facultative Ponds, International Conference on Energy, Environment And Information System, Semarang, Indonesia. [Slides]

[2017-08-2] Expected Value Analysis for Integrated Supplier Selection and Inventory Control of Multi-product Inventory System with Fuzzy Cost,  International Conference and Workshop on Mathematical Analysis and Its Application, Malang, Indonesia. [Slides]

[2016-10-05] Deterministic Dynamic Programming Approach to Solve an Integrated Dynamic Supplier Selection and Inventory Control, International Seminar on New Paradigm and Innovation of Natural Sciences and its Application (ISNPINSA), Semarang, Indonesia. [Slides]

[2016-08-27] Integrated Supplier Selection and Inventory Control of Probabilistic Single Product Inventory System with Product Discount and Its Optimal Strategy via Stochastic Dynamic Programming, IORA - International Conference on Operations Research 2016, Bogor, Indonesia. [Slides]

[2016-08-27] Dynamic Optimization Approach for Integrated  Supplier Selection and Tracking Control of Single  Product Inventory System with Product Discount, IORA - International Conference on Operations Research 2016, Bogor, Indonesia. [Slides]

[2016-07-25] Optimal Strategy for Supplier Selection Problem Integrated with Optimal Control Problem of Single Product Inventory System with Piecewise Holding Cost,  Asian Mathematical Conference, Bali, Indonesia. [Slides]

[2016-04-24] Optimal Strategy for Integrated Dynamic Inventory Control and Supplier Selection in Unknown Environment via Stochastic Dynamic Programming, The 2016 International Congress on Theoretical and Applied Mathematics, Physics and Chemistry ( The Science 2016), Bandung, Indonesia. [Slides]

[2015-09-15] Hybrid Mathematical Model of Inventory System with Piecewise Holding Cost and Its Optimal Strategy, International Conference on Advanced Mechatronics, Intelligent Manufacture and Industrial Automation (ICAMIMIA), Surabaya, Indonesia. [Slides]

[2015-08-18] Hybrid Dynamic Modeling and Simulation of an Autonomous System to Avoid Several Restricted States, South East Asian Mathematics Society (SEAMS) Conference, Yogyakarta, Indonesia. [Slides]

[2013-11-25] Tracking Control for Hybrid System of Unmanned Small Scale Helicopter Using Predictive Control, ROBIONETICS, November 25-27, 2013, Yogyakarta, Indonesia. [Slides]

[2013-06-18] Application Of Model Predictive Control To Reduce The Vibration Of Two Connected Buildings, 2013 East Asia Section of Society of Industrial and Financial Mathematics-the Conference on Industrial and Applied Mathematics (EASIAM-CIAM ITB), Bandung, Indonesia. [Slides]