Hybrid soft computing systems: industrial and commercial applications

P.P. Bonissone, Yu-To Chen, K. Goebel, P.S. Khedkar
1999 Proceedings of the IEEE  
Soft computing (SC) is an association of computing methodologies that includes as its principal members fuzzy logic, neuro-computing, evolutionary computing and probabilistic computing. We present a collection of methods and tools that can be used to perform diagnostics, estimation, and control. These tools are a great match for real-world applications that are characterized by imprecise, uncertain data, and incomplete domain knowledge. We outline the advantages of applying SC techniques and in
more » ... particular the synergy derived from the use of hybrid SC systems. We illustrate some combinations of hybrid SC systems, such as fuzzy logic controllers (FLCs) tuned by neural networks (NNs) and evolutionary computing (EC), NNs tuned by EC or FLCs, and EC controlled by FLCs. We discuss three successful real-world examples of SC applications to industrial equipment diagnostics, freight train control, and residential property valuation. Probabilistic Computing Rather than retracing the history of probability, we will focus on the development of probabilistic computing (PC) and illustrate the way it complements fuzzy computing. As depicted in Figure 1 , we can divide probabilistic computing into two classes: single-valued and interval-valued systems.
doi:10.1109/5.784245 fatcat:ntpjdm3exbgudlxqi62ikvsvuu