otsustamisvõrgustiku

Otsustamisvõrgustik, also known as a decision network, is a graphical model used to represent and analyze decisions under uncertainty. It is a type of Bayesian network that includes decision nodes and utility nodes in addition to the standard probability nodes. The primary purpose of a decision network is to aid in decision-making by providing a structured approach to evaluating different options and their potential outcomes.

The structure of a decision network typically includes:

1. Decision Nodes: These represent the choices or actions that can be taken. Each decision node has a set of possible actions that can be selected.

2. Chance Nodes: These represent random variables or events whose outcomes are uncertain. They are connected to other nodes in the network and are influenced by the decisions made.

3. Utility Nodes: These represent the preferences or objectives of the decision-maker. They are used to quantify the desirability of different outcomes.

The process of using a decision network involves defining the structure of the network, specifying the probabilities and utilities, and then using algorithms to compute the expected utility of each decision option. This allows the decision-maker to compare the different options and choose the one that maximizes their expected utility.

Decision networks are widely used in various fields, including operations research, management science, and artificial intelligence, to support decision-making in complex and uncertain environments. They provide a systematic way to integrate information, model uncertainty, and evaluate the consequences of different decisions.