| 2009 | An Introduction to Parameterized IFAM Models with Applications in Prediction. | Peter Sussner, Rodolfo Miyasaki, Marcos Eduardo Valle |
| 2009 | Operational Semantics for a Fuzzy Logic Programming System with Defaults and Constructive Answers. | Hannes Strass, Susana Muoz-Hernndez, Victor Pablos Ceruelo |
| 2009 | Time Series Analysis and Prediction Based on Fuzzy Rules and the Fuzzy Transform. | Martin Stepnicka, Viktor Pavliska, Vilm Novk, Irina Perfilieva, Lenka Vavrickova, Iva Tomanova |
| 2009 | The Bandler-Kohout Subproduct as a Suitable Inference. | Martin Stepnicka, Balasubramaniam Jayaram |
| 2009 | Fuzzy Descriptions to Identify Temporal Substructure Changes of Cooccurrence Graphs. | Matthias Steinbrecher, Rudolf Kruse |
| 2009 | Fuzzy Arithmetic with Parametric LR Fuzzy Numbers. | Luciano Stefanini, Laerte Sorini |
| 2009 | Fuzzy Transform and Smooth Functions. | Luciano Stefanini |
| 2009 | On M-Approximative Operators and M-Approximative Systems. | Alexander P. Sostak |
| 2009 | A Desktop Calculator for Parametric Fuzzy Arithmetic. | Laerte Sorini |
| 2009 | Real-Time Segmentation of Moving Objects in H.264 Compressed Domain with Dynamic Design of Fuzzy Sets. | Cayetano J. Solana-Cipres, Luis Rodriguez-Benitez, Juan Moreno Garca, Luis Jimnez, Gerardo Fernndez-Escribano |
| 2009 | Overlap Index, Overlap Functions and Migrativity. | Humberto Bustince Sola, Javier Fernndez, Radko Mesiar, Javier Montero, Raul Orduna |
| 2009 | Around Fuzziness. Some Philosophical Thoughts. | Alejandro Sobrino, Martn Pereira |
| 2009 | Definition of Fuzzy Pareto-Optimality by Using Possibility Theory. | Ricardo C. Silva, Akebo Yamakami |
| 2009 | A Parametric Method to Solve Quadratic Programming Problems with Fuzzy Costs. | Ricardo C. Silva, Carlos Cruz Corona, Akebo Yamakami |
| 2009 | Minimal Combination for Incremental Grammar Fragment Learning. | Nurfadhlina Mohd Sharef, Trevor Martin, Yun Shen |
| 2009 | On Classical, Fuzzy Classical, Quantum and Fuzzy Quantum Systems. | Rudolf Seising |
| 2009 | 60 years "A Mathematical Theory of Communication" - Towards a "Fuzzy Information Theory". | Rudolf Seising |
| 2009 | On Interval and Fuzzy Calculations of Economic Uncertainty. | Hans Schjr-Jacobsen |
| 2009 | Soft Computing Confronting Philosophical and Sociological Critiques to Classical AI. | Veronica Sanz |
| 2009 | Terrain Morphology Classification over Fuzzy Digital Elevation Models. | Jorge Santos |
| 2009 | A Fuzzy Set Approach to Ecological Knowledge Discovery. | Arkadiusz Salski |
| 2009 | Stability Analysis of Continuous PI-like Fuzzy Control Systems based on Vector Norms Approach. | Anis Sakly, Basma Zahra, Mohamed Benrejeb |
| 2009 | Reasoning about Actions in Fuzzy Environment. | Emad Saad, Shamiaa Elmorsy, Mahmoud Gabr, Yasser Hassan |
| 2009 | A construction of an L-fuzzy valued measure of L-fuzzy sets. | Vechislav Ruzha, Svetlana V. Asmuss |
| 2009 | Fuzzy c-Means Herding. | Thomas A. Runkler |