Sciweavers

TFS
2011
242views Education» more  TFS 2011»
12 years 10 months ago
Linguistic Summarization Using IF-THEN Rules and Interval Type-2 Fuzzy Sets
—Linguistic summarization (LS) is a data mining or knowledge discovery approach to extract patterns from databases. Many authors have used this technique to generate summaries li...
Dongrui Wu, Jerry M. Mendel
EUSFLAT
2009
262views Fuzzy Logic» more  EUSFLAT 2009»
13 years 1 months ago
Type-2 Fuzzy Arithmetic using Alpha-planes
Abstract-- This paper examines type-2 fuzzy arithmetic using interval analysis. It relies heavily on alpha-cuts and alpha-planes. Furthermore, we discuss the use of quasi type-2 fu...
Hussam Hamrawi, Simon Coupland
TSMC
2008
137views more  TSMC 2008»
13 years 3 months ago
A Type-2 Self-Organizing Neural Fuzzy System and Its FPGA Implementation
This paper proposes a type-2 self-organizing neural fuzzy system (T2SONFS) and its hardware implementation. The antecedent parts in each T2SONFS fuzzy rule are interval type-2 fuzz...
Chia-Feng Juang, Yu-Wei Tsao
ISCI
2007
138views more  ISCI 2007»
13 years 3 months ago
Uncertainty measures for interval type-2 fuzzy sets
Fuzziness (entropy) is a commonly used measure of uncertainty for type-1 fuzzy sets. For interval type-2 fuzzy sets (IT2 FSs), centroid, cardinality, fuzziness, variance and skewn...
Dongrui Wu, Jerry M. Mendel
IJAR
2008
117views more  IJAR 2008»
13 years 3 months ago
New geometric inference techniques for type-2 fuzzy sets
This paper presents new techniques for performing logical operations on type-2 fuzzy sets. These techniques make significant use of geometric methods to give, for the first time, ...
Simon Coupland, Robert John
EAAI
2006
161views more  EAAI 2006»
13 years 3 months ago
Genetic learning and performance evaluation of interval type-2 fuzzy logic controllers
Type-2 fuzzy sets, which are characterized by membership functions (MFs) that are themselves fuzzy, have been attracting interest. This paper focuses on advancing the understandin...
Dongrui Wu, Woei Wan Tan
FSS
2008
94views more  FSS 2008»
13 years 3 months ago
Lattices of convex normal functions
The algebra of truth values of type-2 fuzzy sets is the set of all functions from the unit interval into itself, with operations de ned in terms of certain convolutions of these f...
John Harding, Carol L. Walker, Elbert A. Walker
FUZZIEEE
2007
IEEE
13 years 7 months ago
A Vector Similarity Measure for Interval Type-2 Fuzzy Sets
Fuzzy logic is frequently used in computing with words (CWW). When input words to a CWW engine are modeled by interval type-2 fuzzy sets (IT2 FSs), the CWW engine's output can...
Dongrui Wu, Jerry M. Mendel
FOCI
2007
IEEE
13 years 7 months ago
Type-2 Fuzzy Sets: Geometric Defuzzification and Type-Reduction
This paper presents the geometric defuzzifier for generalised type-2 fuzzy sets. This defuzzifier can be executed in real-time and can therefore be applied to control and other rea...
Simon Coupland
FUZZIEEE
2007
IEEE
13 years 10 months ago
On the Accuracy of Type-2 Fuzzy Sets
— Geometric Type-2 Fuzzy sets allow us to model type-2 fuzzy sets using geometry providing significant improvement in speed of computation. This paper explores in detail how wel...
Simon Coupland, Robert John