Susana M. Vieira

According to our database, Susana M. Vieira authored at least 90 papers between 2004 and 2025.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2025

Divide-and-conquer initialization and mutation operators for the large-scale mixed Capacitated Arc Routing Problem.

Diogo F. Oliveira, Miguel S. E. Martins, João M. C. Sousa, Susana M. Vieira, José Rui Figueira

Eur. J. Oper. Res., 2025

2024

Towards Sustainable Inventory Management: A Many-Objective Approach to Stock Optimization in Multi-Storage Supply Chains.

João A. M. Santos, Miguel S. E. Martins, Rui M. Pinto, Susana M. Vieira

Algorithms, June, 2024

Identifying the Determinants of Infant and Youth Mortality in Portugal: a Machine Learning Approach.

Beatriz P. Lourenço, Miguel Santos Loureiro, Filipe Santos, Rodrigo M. M. Ventura, Ricardo Magalhães, Vera Dantas, Matilde Valente Rosa, Cristina Bárbara, João M. C. Sousa, Susana M. Vieira

Proceedings of the International Joint Conference on Neural Networks, 2024

Applications of Autonomous Learning Multi Model System to Multiclass Imbalanced Datasets.

André Seabra, Rodrigo M. M. Ventura, Rui Jorge Almeida, Susana M. Vieira, João M. C. Sousa

Proceedings of the IEEE International Conference on Fuzzy Systems, 2024

2023

Agent-based hybrid tabu-search heuristic for dynamic scheduling.

Bernardo M. Firme, João Figueiredo, João M. C. Sousa, Susana M. Vieira

Eng. Appl. Artif. Intell., November, 2023

Minimizing total completion time in large-sized pharmaceutical quality control scheduling.

Miguel S. E. Martins, Joaquim L. Viegas, Tiago Coito, Bernardo M. Firme, Andrea Costigliola, João Figueiredo, Susana M. Vieira, João M. C. Sousa

J. Heuristics, February, 2023

Augmented Reality Techology in a Pharmaceutical Industry Prototype.

Bernardo M. Firme, José Rodrigues, Maria Teresa Restivo, Susana M. Vieira, João M. C. Sousa

Proceedings of the 2023 6th Experiment@ International Conference (exp.at'23), 2023

2022

Power output optimization of electric vehicles smart charging hubs using deep reinforcement learning.

Andrea Bertolini, Miguel S. E. Martins, Susana M. Vieira, João M. C. Sousa

Expert Syst. Appl., 2022

Many-objective optimization of a three-echelon supply chain: A case study in the pharmaceutical industry.

João A. M. Santos, João M. C. Sousa, Susana M. Vieira, André F. Ferreira

Comput. Ind. Eng., 2022

Integration of industrial IoT architectures for dynamic scheduling.

Tiago Coito, Bernardo M. Firme, Miguel S. E. Martins, Andrea Costigliola, Rafael Lucas, João Figueiredo, Susana M. Vieira, João M. C. Sousa

Comput. Ind. Eng., 2022

Intelligent Funds Assistant Exploiting Hierarchical Text Classification Algorithms.

Inês Saraiva, Daniela Moniz, Alexandre Almeida, João M. C. Sousa, Susana M. Vieira

Proceedings of the International Joint Conference on Neural Networks, 2022

First-Order Autonomous Learning Multi-Model Systems for Multiclass Classification tasks.

Filipe Santos, Rodrigo Ventura, João M. C. Sousa, Susana Margarida Vieira

Proceedings of the IEEE International Conference on Fuzzy Systems, 2022

2021

Encoder-Decoder Neural Network Architecture for solving Job Shop Scheduling Problems using Reinforcement Learning.

Ricardo Magalhães, Miguel S. E. Martins, Susana M. Vieira, Filipe Santos, João M. C. Sousa

Proceedings of the IEEE Symposium Series on Computational Intelligence, 2021

Fuzzy Systems in Health Care.

Susana M. Vieira

Proceedings of the 13th International Joint Conference on Computational Intelligence, 2021

A new approach to ALMMo-0 Classifiers: A trade-off between accuracy and complexity.

Filipe Santos, João M. C. Sousa, Susana Margarida Vieira

Proceedings of the 30th IEEE International Conference on Fuzzy Systems, 2021

2020

Pharmaceutical quality control laboratory digital twin - A novel governance model for resource planning and scheduling.

Miguel R. Lopes, Andrea Costigliola, Rui Pinto, Susana M. Vieira, João M. C. Sousa

Int. J. Prod. Res., 2020

A Middleware Platform for Intelligent Automation: An Industrial Prototype Implementation.

Tiago Coito, Miguel S. E. Martins, Joaquim L. Viegas, Bernardo M. Firme, João Figueiredo, Susana M. Vieira, João M. C. Sousa

Comput. Ind., 2020

Clinical Decision Support Systems for Triage in the Emergency Department using Intelligent Systems: a Review.

Marta P. B. Fernandes, Susana M. Vieira, Francisca Pais Leite, Carlos Palos, Stan N. Finkelstein, João M. C. Sousa

Artif. Intell. Medicine, 2020

Optimizing Agent Training with Deep Q-Learning on a Self-Driving Reinforcement Learning Environment.

Pedro João Rodrigues, Susana M. Vieira

Proceedings of the 2020 IEEE Symposium Series on Computational Intelligence, 2020

Solving Dynamic Delivery Services Using Ant Colony Optimization.

Miguel S. E. Martins, Tiago Coito, Bernardo M. Firme, Joaquim L. Viegas, João M. C. Sousa, João Figueiredo, Susana M. Vieira

Proceedings of the Information Processing and Management of Uncertainty in Knowledge-Based Systems, 2020

Artificial Bee Colony Algorithm Applied to Dynamic Flexible Job Shop Problems.

Inês C. Ferreira, Bernardo M. Firme, Miguel S. E. Martins, Tiago Coito, Joaquim L. Viegas, João Figueiredo, Susana M. Vieira, João M. C. Sousa

Proceedings of the Information Processing and Management of Uncertainty in Knowledge-Based Systems, 2020

Multi-agent system for dynamic scheduling.

Bernardo M. Firme, Guilherme Lopes, Miguel S. E. Martins, Tiago Coito, Joaquim L. Viegas, João M. C. Sousa, João C. P. Reis, João Figueiredo, Susana M. Vieira

Proceedings of the 2020 International Joint Conference on Neural Networks, 2020

2019

Concept and Evaluation of a Technology-independent Data Collection Architecture for Industrial Automation.

Emanuel Trunzer, Pedro Prata, Susana M. Vieira, Birgit Vogel-Heuser

Proceedings of the IECON 2019, 2019

An Architecture Based on Fuzzy Systems for Personalized Medicine in ICUs.

João M. C. Sousa, Susana M. Vieira, João P. Carvalho, Sara C. Madeira, Leo A. Celi, Stan N. Finkelstein

Proceedings of the 2019 IEEE International Conference on Fuzzy Systems, 2019

Fuzzy Modeling of Survival Associated to Insulin Therapy in the ICU.

Aldo Arévalo, Bernardo M. Firme, Susana M. Vieira, Leo A. Celi, Stan N. Finkelstein, João M. C. Sousa

Proceedings of the 2019 IEEE International Conference on Fuzzy Systems, 2019

2018

Clinical decision support tool for Co-management signalling.

Alexandra Horta, Cátia M. Salgado, Marta P. B. Fernandes, Susana M. Vieira, João Miguel da Costa Sousa, Ana Luísa Papoila, Miguel Xavier

Int. J. Medical Informatics, 2018

Electricity fraud detection using committee semi-supervised learning.

Joaquim L. Viegas, Nuno M. Cepeda, Susana M. Vieira

Proceedings of the 2018 International Joint Conference on Neural Networks, 2018

Hybrid neural models for automatic handwritten digits recognition.

Aline A. Peres, Susana M. Vieira, João Rogério Caldas Pinto

Proceedings of the 2018 International Joint Conference on Neural Networks, 2018

Short-term prediction in an Oscillating Water Column using Artificial Neural Networks.

Marta P. B. Fernandes, Susana M. Vieira, João C. C. Henriques, Duarte Valério, Luís M. C. Gato

Proceedings of the 2018 International Joint Conference on Neural Networks, 2018

Fuzzy Modeling for Predicting Patient Survival Rate in ICU with AKI.

Andre D. Silva, Clara C. Correia, Cátia M. Salgado, Stan N. Finkelstein, Leo A. Celi, João M. C. Sousa, Susana M. Vieira

Proceedings of the 2018 IEEE International Conference on Fuzzy Systems, 2018

Fuzzy Classification of Bariatric Post-surgery Effectiveness.

Aldo Arévalo, Ricardo Pacheco, Cátia M. Salgado, Saskia van Loon, Arjen-Kars Boer, Susana M. Vieira, Uzay Kaymak, João M. C. Sousa

Proceedings of the 2018 IEEE International Conference on Fuzzy Systems, 2018

2017

Takagi-Sugeno Fuzzy Modeling Using Mixed Fuzzy Clustering.

Cátia M. Salgado, Joaquim L. Viegas, Carlos S. Azevedo, Marta C. Ferreira, Susana M. Vieira, João Miguel da Costa Sousa

IEEE Trans. Fuzzy Syst., 2017

Mixed Fuzzy Clustering for Misaligned Time Series.

Cátia M. Salgado, Marta C. Ferreira, Susana M. Vieira

IEEE Trans. Fuzzy Syst., 2017

Daily prediction of ICU readmissions using feature engineering and ensemble fuzzy modeling.

Rita Viegas, Cátia M. Salgado, Sérgio Curto, João Paulo Carvalho, Susana M. Vieira, Stan N. Finkelstein

Expert Syst. Appl., 2017

Relating Aircraft Altitude with Pilot's Physiological Variables: Towards Increasing Safety in Light-sport Aviation.

Susana M. Vieira, Alexandra Moutinho, Margarida Solas, José F. Loureiro, Maria B. Silva, Sara Zorro, Luís Patrão, Joaquim Gabriel, Jorge Silva

Proceedings of the 14th International Conference on Informatics in Control, 2017

Clustering-based novelty detection to uncover electricity theft.

Joaquim L. Viegas, Susana M. Vieira

Proceedings of the 2017 IEEE International Conference on Fuzzy Systems, 2017

Multistage modeling for the classification of numerical and categorical datasets.

Cátia M. Salgado, Marta P. B. Fernandes, Alexandra Horta, Miguel Xavier, João M. C. Sousa, Susana M. Vieira

Proceedings of the 2017 IEEE International Conference on Fuzzy Systems, 2017

Short-term prediction of low kidney function in ICU patients.

Ricardo Pacheco, Cátia M. Salgado, Rodrigo Deliberato, Leo Anthony Celi, Susana M. Vieira

Proceedings of the 2017 IEEE International Conference on Fuzzy Systems, 2017

2016

Ensemble fuzzy models in personalized medicine: Application to vasopressors administration.

Cátia M. Salgado, Susana M. Vieira, Luís F. Mendonça, Stan N. Finkelstein, João M. C. Sousa

Eng. Appl. Artif. Intell., 2016

Mortality prediction of septic shock patients using probabilistic fuzzy systems.

André S. Fialho, Susana M. Vieira, Uzay Kaymak, Rui Jorge Almeida, Federico Cismondi, Shane R. Reti, Stan N. Finkelstein, João M. C. Sousa

Appl. Soft Comput., 2016

Mining Consumer Characteristics from Smart Metering Data through Fuzzy Modelling.

Joaquim L. Viegas, Susana M. Vieira, João M. C. Sousa

Proceedings of the Information Processing and Management of Uncertainty in Knowledge-Based Systems, 2016

Fuzzy Modeling Based on Mixed Fuzzy Clustering for Multivariate Time Series of Unequal Lengths.

Cátia M. Salgado, Susana M. Vieira, João M. C. Sousa

Proceedings of the Information Processing and Management of Uncertainty in Knowledge-Based Systems, 2016

Seasonal Clustering of Residential Natural Gas Consumers.

Marta P. B. Fernandes, Joaquim L. Viegas, Susana M. Vieira, João M. C. Sousa

Proceedings of the Information Processing and Management of Uncertainty in Knowledge-Based Systems, 2016

GA-ANN Short-Term Electricity Load Forecasting.

Joaquim L. Viegas, Susana M. Vieira, Rui Melício, Victor M. F. Mendes, João M. C. Sousa

Proceedings of the Technological Innovation for Cyber-Physical Systems, 2016

Optimizing probabilistic fuzzy systems for classification using metaheuristics.

Hugo Manuel Proença, Susana M. Vieira, Uzay Kaymak, Rui Jorge Almeida, João M. C. Sousa

Proceedings of the 2016 IEEE International Conference on Fuzzy Systems, 2016

Analysis of residential natural gas consumers using fuzzy c-means clustering.

Marta P. B. Fernandes, Joaquim L. Viegas, Susana M. Vieira, João M. C. Sousa

Proceedings of the 2016 IEEE International Conference on Fuzzy Systems, 2016

Predicting ICU readmissions based on bedside medical text notes.

Sérgio Curto, João Paulo Carvalho, Cátia M. Salgado, Susana M. Vieira, João M. C. Sousa

Proceedings of the 2016 IEEE International Conference on Fuzzy Systems, 2016

Fuzzy modeling to predict short and long-term mortality among patients with Acute Kidney Injury.

Vanessa S. Cunha, Cátia M. Salgado, Susana M. Vieira, João M. C. Sousa

Proceedings of the 2016 IEEE International Conference on Fuzzy Systems, 2016

2015

Designing closed-loop supply chains with nonlinear dimensioning factors using ant colony optimization.

P. F. Vieira, Susana M. Vieira, Maria Isabel Gomes Salema, Ana Paula F. D. Barbosa-Póvoa, João M. C. Sousa

Soft Comput., 2015

Electricity Usage Efficiency in Large Buildings: DSM Measures and Preliminary Simulations of DR Programs in a Public Library.

Hugo Algarvio, Joaquim P. L. Viegas, Fernando Lopes, Diogo Amaro, Anabela Gonçalves Pronto, Susana M. Vieira

Proceedings of the Highlights of Practical Applications of Agents, Multi-Agent Systems, and Sustainability - The PAAMS Collection, 2015

Analysing the segmentation of energy consumers using mixed fuzzy clustering.

Hanna Schäfer, Joaquim P. L. Viegas, Marta C. Ferreira, Susana M. Vieira, João M. C. Sousa

Proceedings of the 2015 IEEE International Conference on Fuzzy Systems, 2015

Ensemble fuzzy classifiers design using weighted aggregation criteria.

Cátia M. Salgado, Carlos S. Azevedo, Jonathan M. Garibaldi, Susana M. Vieira

Proceedings of the 2015 IEEE International Conference on Fuzzy Systems, 2015

Fuzzy modeling based on Mixed Fuzzy Clustering for health care applications.

Marta C. Ferreira, Cátia M. Salgado, Joaquim P. L. Viegas, Hanna Schäfer, Carlos S. Azevedo, Susana M. Vieira, João M. C. Sousa

Proceedings of the 2015 IEEE International Conference on Fuzzy Systems, 2015

Fuzzy clustering and prediction of electricity demand based on household characteristics.

Joaquim P. L. Viegas, Susana M. Vieira, João M. C. Sousa

Proceedings of the 2015 Conference of the International Fuzzy Systems Association and the European Society for Fuzzy Logic and Technology (IFSA-EUSFLAT-15), 2015

Fuzzy Clustering for Incomplete Short Time Series Data.

Lúcia P. Cruz, Susana M. Vieira, Susana Vinga

Proceedings of the Progress in Artificial Intelligence, 2015

2014

Binary Fish School Search applied to feature selection: Application to ICU readmissions.

Joao A. G. Sargo, Susana M. Vieira, João M. C. Sousa, Carmelo J. A. Bastos Filho

Proceedings of the IEEE International Conference on Fuzzy Systems, 2014

Multimodeling for the prediction of patient readmissions in Intensive Care Units.

Marta P. B. Fernandes, Claudia F. Silva, Susana M. Vieira, João M. C. Sousa

Proceedings of the IEEE International Conference on Fuzzy Systems, 2014

Metaheuristics for the 3D bin packing problem in the steel industry.

Joaquim P. L. Viegas, Susana M. Vieira, João M. C. Sousa, Elsa M. P. Henriques

Proceedings of the IEEE Congress on Evolutionary Computation, 2014

2013

Reducing unnecessary lab testing in the ICU with artificial intelligence.

Federico Cismondi, Leo A. Celi, André S. Fialho, Susana M. Vieira, Shane R. Reti, João M. C. Sousa, Stan N. Finkelstein

Int. J. Medical Informatics, 2013

Modified binary PSO for feature selection using SVM applied to mortality prediction of septic patients.

Susana M. Vieira, Luís F. Mendonça, Goncalo J. Farinha, João M. C. Sousa

Appl. Soft Comput., 2013

Missing data in medical databases: Impute, delete or classify?

Federico Cismondi, André S. Fialho, Susana M. Vieira, Shane R. Reti, João Miguel da Costa Sousa, Stan N. Finkelstein

Artif. Intell. Medicine, 2013

A decision support system for ICU readmissions prevention.

Susana M. Vieira, João Paulo Carvalho, André S. Fialho, Shane R. Reti, Stan N. Finkelstein, João M. C. Sousa

Proceedings of the Joint IFSA World Congress and NAFIPS Annual Meeting, 2013

An ACO Algorithm for the 3D Bin Packing Problem in the Steel Industry.

Miguel Espinheira Silveira, Susana Margarida Vieira, João Miguel da Costa Sousa

Proceedings of the Recent Trends in Applied Artificial Intelligence, 2013

Data mining and modeling to predict the necessity of vasopressors for ICU patients.

Jose M. Rodrigues, André S. Fialho, Susana M. Vieira, Luís F. Mendonça, João M. C. Sousa

Proceedings of the FUZZ-IEEE 2013, 2013

Predicting intensive care unit readmissions using probabilistic fuzzy systems.

André S. Fialho, Uzay Kaymak, Federico Cismondi, Susana Margarida Vieira, Shane R. Reti, João M. C. Sousa, Stan N. Finkelstein

Proceedings of the FUZZ-IEEE 2013, 2013

2012

Fuzzy criteria for feature selection.

Susana M. Vieira, João M. C. Sousa, Uzay Kaymak

Fuzzy Sets Syst., 2012

Data mining using clinical physiology at discharge to predict ICU readmissions.

André S. Fialho, Federico Cismondi, Susana M. Vieira, Shane R. Reti, João M. C. Sousa, Stan N. Finkelstein

Expert Syst. Appl., 2012

Multi-stage modeling using fuzzy multi-criteria feature selection to improve survival prediction of ICU septic shock patients.

Federico Cismondi, Abigail L. Horn, André S. Fialho, Susana M. Vieira, Shane R. Reti, João Miguel da Costa Sousa, Stan N. Finkelstein

Expert Syst. Appl., 2012

Modified Sequential Forward Selection Applied to Predicting Septic Shock Outcome in the Intensive Care Unit.

Ruben D. M. A. Pereira, João Miguel da Costa Sousa, Susana M. Vieira, Shane R. Reti, Stan N. Finkelstein

Proceedings of the Synergies of Soft Computing and Statistics for Intelligent Data Analysis, 2012

ANN validation system for ICU neonatal data.

Federico Cismondi, André S. Fialho, Xiaoning Lu, Susana M. Vieira, James E. Gray, Shane R. Reti, João M. C. Sousa, Stan N. Finkelstein

Proceedings of the 2012 International Joint Conference on Neural Networks (IJCNN), 2012

Probabilistic fuzzy prediction of mortality in intensive care units.

André S. Fialho, Uzay Kaymak, Rui Jorge Almeida, Federico Cismondi, Susana M. Vieira, Shane R. Reti, João M. C. Sousa, Stan N. Finkelstein

Proceedings of the FUZZ-IEEE 2012, 2012

Metaheuristics for feature selection: Application to sepsis outcome prediction.

Susana M. Vieira, Luís F. Mendonça, Goncalo J. Farinha, João M. C. Sousa

Proceedings of the IEEE Congress on Evolutionary Computation, 2012

2011

Predicting septic shock outcomes in a database with missing data using fuzzy modeling: Influence of pre-processing techniques on real-world data-based classification.

Ruben D. M. A. Pereira, André S. Fialho, Federico Cismondi, Susana M. Vieira, João M. C. Sousa, Rui Jorge Almeida, Uzay Kaymak, Shane R. Reti, Michael D. Howell, Stan N. Finkelstein

Proceedings of the FUZZ-IEEE 2011, 2011

Fuzzy modeling to predict administration of vasopressors in intensive care unit patients.

André S. Fialho, Federico Cismondi, Susana M. Vieira, João M. C. Sousa, Shane R. Reti, Leo A. Celi, Michael D. Howell, Stan N. Finkelstein

Proceedings of the FUZZ-IEEE 2011, 2011

Predicting laboratory testing in intensive care using fuzzy and neural modeling.

Federico Cismondi, André S. Fialho, Susana M. Vieira, João M. C. Sousa, Shane R. Reti, Leo A. Celi, Michael D. Howell, Stan N. Finkelstein

Proceedings of the FUZZ-IEEE 2011, 2011

Computational intelligence methods for processing misaligned, unevenly sampled time series containing missing data.

Federico Cismondi, André S. Fialho, Susana M. Vieira, João M. C. Sousa, Shane R. Reti, Michael D. Howell, Stan N. Finkelstein

Proceedings of the IEEE Symposium on Computational Intelligence and Data Mining, 2011

2010

Ant Feature Selection Using Fuzzy Decision Functions.

Susana M. Vieira, João M. C. Sousa, Uzay Kaymak

Proceedings of the Fuzzy Optimization - Recent Advances and Applications, 2010

Two cooperative ant colonies for feature selection using fuzzy models.

Susana M. Vieira, João Miguel da Costa Sousa, Thomas A. Runkler

Expert Syst. Appl., 2010

Predicting Outcomes of Septic Shock Patients Using Feature Selection Based on Soft Computing Techniques.

André S. Fialho, Federico Cismondi, Susana M. Vieira, João Miguel da Costa Sousa, Shane R. Reti, Michael D. Howell, Stan N. Finkelstein

Proceedings of the Information Processing and Management of Uncertainty in Knowledge-Based Systems. Applications, 2010

Cohen's kappa coefficient as a performance measure for feature selection.

Susana M. Vieira, Uzay Kaymak, João M. C. Sousa

Proceedings of the FUZZ-IEEE 2010, 2010

2009

Feature Selection Using Fuzzy Objective Functions.

Susana M. Vieira, João Miguel da Costa Sousa, Uzay Kaymak

Proceedings of the Joint 2009 International Fuzzy Systems Association World Congress and 2009 European Society of Fuzzy Logic and Technology Conference, 2009

Knowledge Discovery in the Prediction of Bankruptcy.

Rui Jorge Almeida, Susana M. Vieira, Viorel Milea, Uzay Kaymak, João Miguel da Costa Sousa

Proceedings of the Joint 2009 International Fuzzy Systems Association World Congress and 2009 European Society of Fuzzy Logic and Technology Conference, 2009

2008

Fuzzy classification in ant feature selection.

Susana M. Vieira, João Miguel da Costa Sousa, Thomas A. Runkler

Proceedings of the FUZZ-IEEE 2008, 2008

2007

Decision tree search methods in fuzzy modeling and classification.

Luís F. Mendonça, Susana M. Vieira, João Miguel da Costa Sousa

Int. J. Approx. Reason., 2007

Ant Colony Optimization Applied to Feature Selection in Fuzzy Classifiers.

Susana M. Vieira, João Miguel da Costa Sousa, Thomas A. Runkler

Proceedings of the Foundations of Fuzzy Logic and Soft Computing, 2007

Real-Time Fuzzy Predictive Control of a Column Flotation Process.

Susana M. Vieira, João Miguel da Costa Sousa, Fernando O. Durão

Proceedings of the FUZZ-IEEE 2007, 2007

2006

Ant Based Fuzzy Modeling Applied to Marble Classification.

Susana M. Vieira, João Miguel da Costa Sousa, João Rogério Caldas Pinto

Proceedings of the Image Analysis and Recognition, Third International Conference, 2006

Fault Accommodation Using Fuzzy Predictive Control.

Luís F. Mendonça, Susana M. Vieira, João M. C. Sousa, José M. G. Sá da Costa

Proceedings of the IEEE International Conference on Fuzzy Systems, 2006

2005

Modified Regularity Criterion in Dynamic Fuzzy Modeling Applied to Industrial Processes.

Susana M. Vieira, L. F. Mendonga, João Miguel da Costa Sousa

Proceedings of the IEEE International Conference on Fuzzy Systems, 2005

2004

Combination of fuzzy identification algorithms applied to a column flotation process.

Susana M. Vieira, João M. C. Sousa, Fernando O. Durão

Proceedings of the IEEE International Conference on Fuzzy Systems, 2004