Bayesian Network software with the simplest, easiest and modern Graphical Interface.

Video Demonstration for Rational Will

Bayesian Doctor - for Bayesian Network and Bayesian Inference.

Rich visual modeling using the Bayesian Network Software

Bayesian Doctor is a tool for analyzing Bayesian Network and Bayesian Inference using a directed graphical model. Create a Bayesian network in a very intuitive way, and diagnoses the Root cause.

Instantiate Observation

When you observe a state of a variable, instantiate the state of the Variable. For example, we observed that Grass is Wet, so we instantiated the Grass Variable = True. Based on the Observation, the Probability of Rain = True is updated.
Instantiate Bayesian network variable

Multi-State Variables

Not only just Yes/No or True/False type boolean states, rather a variable can have more than 2 states. The Conditional Probability tables are easy to use and scaling of probabilities is easily done.
multiple state random variable

Apply Bayesian Inference to update beliefs upon observations from experiments.

When you have many random variables to work with, a Bayesian Network Conditional Probability Table can be very complicated and becomes fairly impractical in real life diagnostics. Therefore, you need to incorporate one observation at a time and update the beliefs accordingly. Here, the diachronic interpretation comes into play.

“Diachronic” means that something is happening over time; When we receive new data (new observation), the probability of our hypotheses changes. Diachronic Interpretation is a systematic way to update our beliefs as we get new data. In a lab-like setting, you can add as many mutually exclusive and non-exclusive hypotheses, add as many experiments and observations you want, and run a causal discovery session to find out the probability of your hypotheses. Diachronic interpretation tools can be used for various diagnostics from healthcare to daily problems.

Bayesian Inference

Diagnose complicated diseases based on symptoms arrive

An example of understanding the cause of Nausea / Vomiting. Initial Hypotheses were Peptic Ulcer and Viral Gastroenteritis. The diachronic interpretation can be used to update the belief on Peptic Ulcer and Viral Gastroenteritis based on symptoms.
Bayesian Inference belief update

A Part of our Rational Will software.

This Bayesian Network Software (a.k.a. Bayesian Doctor) is also available in our composite (bundled) product Rational Will®, where you get a streamlined user experience of many decision modeling tools. Therefore, if you get Rational WIll, you won't need to acquire this software separately.