# decision

(redirected from Decision theory)
Also found in: Dictionary, Thesaurus, Legal, Encyclopedia, Wikipedia.

## de·cis·ion

(dē-sizh'ŭn),
Judgment; resolution; conclusion reached after deliberation process. The act of making a choice that ends or removes uncertainty.
[M.E., fr. O.Fr., fr. L. decisio, a cutting off, fr. de, off, away, + caedo, to cut]

## de·cis·ion

(dĕ-sizh'ŭn)
A conclusion or judgment reached after consideration of an issue or proposal.
[M.E., fr. O.Fr., fr. L. decisio, a cutting off, fr. de, off, away, + caedo, to cut]

## decision

a choice between a number of possible answers to a question.

decision analysis
a systematic approach to decision making under conditions of imperfect knowledge; a practical application of probability theory. Used to calculate the optimal strategy from among a series of alternative strategies. May be expressed graphically in the form of a decision tree (below).
decision making
making a decision can be done in three principal ways and many variations and mixtures of the methods: (1) rote, the decision is made on the basis of a set of rules and no selectivity is required; (2) intuitive, decisions are made on the basis of cerebrally stored information and reasoning systems which permit a fast response. The increasing complexity of veterinary clinical questions increases the probability of error; (3) decision analysis, a means of solving complicated problems by including all of the factors that could possibly affect the outcome of the analysis in a series of sequential questions. This gives each of the factors an opportunity of affecting the outcome. The chance of error by omission can be eliminated but the process is prolonged.
decision theory
the theoretical basis for decision analysis.
decision tree
a diagrammatic representation of the possible outcomes and events used in decision analysis. The questions to be asked in an analysis of a question are arranged as a series of nodes each with a yes and no branch, creating an arborization effect. The sequential steps proceed with each step depending on the decision made in the preceding step.

## Patient discussion about decision

Q. I am confused why it’s called pregnancy…..can someone….please… I have heard of the dangerous ectopic pregnancy and want to know a little more about it as I am confused why it’s called pregnancy…..can someone….please…

A. actually it is called pregnancy because IT IS A PREGNANCY.
but, it happens NOT in normal ways it has to be. in normal condition, the conception will happen in tuba falopii, then few days later the embryo (zygote) will be implanted into the uterus.

in ectopic pregnancy, the transportation of the zygote doesn't happen normally, it can be slower or even cannot make its way into the uterus. if the implantation then occurs in other part rather than endometrium of the uterus, then it is called an ectopic pregnancy.

since it's implanted NOT in the normal place, in the future it will be more likely to develop some problems during the pregnancy.

Q. why do you call Bipolar ... Bipolar? i mean what does it mean?

A. Bipolar disorder is called this way because it is charecterized by two types of obvious mood disorders- depression on the one side, and mania, or hypomania (a manic state, or 'high'), on the other side.

Q. why does it call "cancer"?can you treat cancer?

A. the name came from the appearance of the cut surface of a solid malignant tumour, with the veins stretched on all sides as the animal the crab has its feet, whence it derives its name. Hippocrates first called it in that name after describing few types of cancer.
some of the cancers are treatable but that is a big subject. there are some very nice videos here on the site that can give you a clue about that. just search them there ^ :)

More discussions about decision
References in periodicals archive ?
As mentioned above, behavioral decision theory arguments suggest that managerial decisions are guided to a large extent by associated downside risks.
Wolpert, "Bayesian decision theory in sensorimotor control", Trends in Cognitive Science, vol.
Both ambiguity avoidance and seeking violate the axioms of decision theory including Savage's sure thing axiom and the additivity of probabilities principle.
Since value-density is a cardinal, it can be multiplied with probabilities and combined with standard decision theory (with value-density taking the place of utility).
Decision theory, Simulation, Forecasting and Investment analysis dealing with statistical tools could be included in Section-III.
The entire framework, the Bayesian Decision Theory model, is a statistical model, and mechanisms relating to any of its components are statistical.
It is interesting to note that classical decision theory remained popular for 500 years and formed the basis of many economic theories.
The decision theory school, according to Kuntz, is concerned with the making of a decision between two or more alternatives.
The theoretical approaches to decision theory can be broadly categorised as taking three approaches--normative, prescriptive and descriptive (Bekker et al.
The review of mathematical decision theory in the previous sections has highlighted two dilemmas facing the application of instrumental reasoning to planning and decision making.
So that was the case in decision theory in business developed by classical economists.
IK: Could you comment on the relationship between statistical decision theory and game theory?

Site: Follow: Share:
Open / Close