TFuzzyHedge Enumeration

Delphi

type
  TFuzzyHedge = (
  fhNot,
  fhSomewhat,
  fhMoreOrLess,
  fhGreatly,
  fhPlus,
  fhVery,
  fhExtremely,
  fhAbove,
  fhBelow,
  fhSlightly,
  fhNormalize,
  fhAbout,
  fhVicinity,
  fhClose,
  fhNear,
  fhNeighboring,
  fhPositively,
  fhAbsolutely,
  fhDefinitely,
  fhGenerally
  );

	Name	Description
	fhAbout	Represents constant fhAbout.
	fhAbove	Represents constant fhAbove.
	fhAbsolutely	Represents constant fhAbsolutely.
	fhBelow	Represents constant fhBelow.
	fhClose	Represents constant fhClose.
	fhDefinitely	Represents constant fhDefinitely.
	fhExtremely	Represents constant fhExtremely.
	fhGenerally	Represents constant fhGenerally.
	fhGreatly	Represents constant fhGreatly.
	fhMoreOrLess	Represents constant fhMoreOrLess.
	fhNear	Represents constant fhNear.
	fhNeighboring	Represents constant fhNeighboring.
	fhNormalize	Represents constant fhNormalize.
	fhNot	Represents constant fhNot.
	fhPlus	Represents constant fhPlus.
	fhPositively	Represents constant fhPositively.
	fhSlightly	Represents constant fhSlightly.
	fhSomewhat	Represents constant fhSomewhat.
	fhVery	Represents constant fhVery.
	fhVicinity	Represents constant fhVicinity.

Top

Hedges modify the shape of a fuzzy set in predictable ways. For example, the very hedge modifies a fuzzy set by pushing all values less than one towards zero. This has the effect of shrinking the boundary, the fuzzy portion, of the set closer to the area that is completely in the set.

Hedges are very powerful because they are predictable as well as intuitive. Intuitively, if we think about a temperature being very cold we want the value to be the proto-typical value of cold, closer to cold. A temperature of 30 is certainly a member of cold, but it should definitely be less of a member of very cold, which is what occurs.

Note that the hedges about, vicinity (of), close, near, and neighboring are called approximation hedges. They are excellent hedges for modify scalar values, e.g., about 50 degrees. The hedges positively, absolutely, and definitely are called contrast intensification hedges as they intensify the contrast; all Y values are pushed closer to 0 or 1. The Generally hedge is the oppositie, it is a constrast diffusion hedge.

Reference

•FuzzyConsts

RiverSoftAVG Products Help

Reference