In computing with words and perceptions (CWP), the objects of computation

Object (computer science)

In computer science, an object is any entity that can be manipulated by the commands of a programming language, such as a value, variable, function, or data structure...

 are words, perception

Perception

Perception is the process of attaining awareness or understanding of the environment by organizing and interpreting sensory information. All perception involves signals in the nervous system, which in turn result from physical stimulation of the sense organs...

s, and proposition

Proposition

In logic and philosophy, the term proposition refers to either the "content" or "meaning" of a meaningful declarative sentence or the pattern of symbols, marks, or sounds that make up a meaningful declarative sentence...

s drawn from a natural language

Natural language

In the philosophy of language, a natural language is any language which arises in an unpremeditated fashion as the result of the innate facility for language possessed by the human intellect. A natural language is typically used for communication, and may be spoken, signed, or written...

. The central theme of CWP is the concept of a generalised constraint. The meaning of a proposition is expressed as a generalised constraint.

CWP is a necessary tool when the available information is perception-based or not precise enough to use numbers.

See also

• Fuzzy set
  Fuzzy set
  Fuzzy sets are sets whose elements have degrees of membership. Fuzzy sets were introduced simultaneously by Lotfi A. Zadeh and Dieter Klaua in 1965 as an extension of the classical notion of set. In classical set theory, the membership of elements in a set is assessed in binary terms according to...
  
  
• Lotfi Zadeh
• Perceptual Computing
  Perceptual Computing
  Perceptual Computing is an application of Zadeh's theory of computing with words on the field of assisting people to make subjective judgments.-Perceptual Computer:...
  
  
• Type-2 Fuzzy Sets and Systems
  Type-2 fuzzy sets and systems
  Type-2 fuzzy sets and systems generalize fuzzy sets and systems so that more uncertainty can be handled. From the very beginning of fuzzy sets, criticism was made about the fact that the membership function of a type-1 fuzzy set has no uncertainty associated with it, something that seems to...
  
  
• Soft computing
  Soft computing
  Soft computing is a term applied to a field within computer science which is characterized by the use of inexact solutions to computationally-hard tasks such as the solution of NP-complete problems, for which an exact solution cannot be derived in polynomial time.-Introduction:Soft Computing became...