bbn v0.7.0

bbn v0.7.0

Bayesian Belief Network CLI/TUI tool and Go module.

Changelog

Breaking changes

• Simplifies return types of bbn.FromFile function (#88)

Performance

• Speed up factor operations by up to factor 2, through faster factor indexing (#90)
• Optimize rearranging factors, with 10-20% speedup, also in methods using it (#92)

Other

• Removes unused type ConflictingEvidenceError (#87)
• Adds profiling for variable elimination (#89)
• Adds benchmarks for the most crucial operations (#90, #92)
• Adds more unit tests (#93)

bbn v0.6.0

bbn v0.6.0

Bayesian Belief Network CLI/TUI tool and Go module.

Changelog

Features

• Makes sub-package ve for low-level variable elimination public (#73)
• Solve utility nodes even when there are ignored policies, overwritten by "evidence" (#74, #75)
• Adds a logic factor to combine bits from parents to a decimal integer (#83)

Documentation

• Adds more documentation and code examples for library usage (#78, #79, #80, #81)
• Adds a decision example for selecting a diagnostic test (#82)
• Adds more logic example (#83, #84)

bbn v0.5.0

bbn v0.5.0

Bayesian Belief Network CLI/TUI tool and Go module.

Highlights

• Uses variable elimination instead of the importance sampling for inference.
• Supports decision networks (aka influence diagrams), including sequential decisions.
• Adds logic nodes for logical reasoning, using simple keywords like and or if-then instead of CPTs.
• Loads of improvements of the TUI app

Changelog

Features

• Reworked library and apps to use Variable Elimination for inference (#42, #43, #44, #45, #46, #47, #48)
• Implement multi-stage decision networks (#45, #60, #61)
• Adds network training to the TUI app (#54)
• Adds a toggle to the TUI app to ignore policies of decision nodes with evidence (#56)
• Nodes can be moved in the TUI app with WASD keys (#57)
• Save network from TUI app using Ctrl+S (#57)
• Adds a help dialog to the TUI app (#58)
• Optional total utility node for weighting individual utilities (#59)
• Adds support for custom node colors in YAML files (#64)
• Adds shortcuts for logic nodes like, and, or, if-then, etc. (#65)
• Networks can have a longer info text, also shown in TUI app (#66)

Documentation

• Adds oil drilling decision example (#48)
• Adds robot decision example (#50)
• Adds medical treatment decision example (#60)
• Adds disease control decision example (#61)
• Adds three examples for logic induction using well-known logical puzzles (#65, #66)
• All examples have a detailed description that shows up in the TUI app (#66, #67)

bbn v0.4.0

Features

• Uses likelihood-weighted sampling instead of simple rejection sampling (#39)

Documentation

• Adds an earthquake sensor decision network example (#38, #40)

Other

• Consistently check whether a new network is an acyclic graph (#40)

bbn v0.3.0

Features

• Adds mouse support for setting outcomes and showing tables (#33)
• Adds utility and decision nodes to form decision networks (#34)
• Color nodes by type (nature, decision, utility) (#35)

bbn v0.2.0

Features

• Support reading BIF-XML file format (#25)

Documentation

• Adds "Dog Problem" example in BIF-XML format (#25)
• Adds "Native Fish" example in YAML format (#28)
• Adds "Mendel Genetics" example in YAML format (#29)
• Extend Monty-Hall problem example by "Change Door" variable (#30)

bbn v0.1.0

Initial release of BBN, the Bayesian Belief Network library and CLI/TUI tool for Go.