- Generic expert system to generate rules and create relation between entries and knowledge base.
- Implemented using Forward Chaining and Backward chaining.
- Require to input well-formatted json files that correspond to the example in
datafolder - The clauses should relate to the Knowledge base or it won't make any sense when run.
- Parsers are built to parse the json file and create objects on runtime.
- The Rule is a string that can be compared.
- Knowledge is formed up of multiple rules
- Knowledge Base is formed up of multiple knowledge
- Clause is a set of questions
- Clause has 3 attributes clause, negative, positive
- For each clause, the knowledge base is searched, percent higher than Min Match is outputted
- The constants can be changed from
utils/constants.py - Check out the examples
data/
-
Json format file that can clearly define a structure to parse.
-
Reading the json file and building the Knowledge Base and the Clause Base.
-
The user input for each clause is converted to Knowledge Base.
-
Both Knowledge bases are compared and max percent matched is outputted.
-
There may be multiple matches, we could display details with percentage.
-
Finally answer is either True or False.
-
Knowledge base syntax
{
"target": [
{
"name": "Kidney disease",
"rules": {
"1": "head aches",
"2": "vomiting",
"3": "body ache",
"4": "no sleep"
}
},
{
"name": "Some target",
"rules": {
"1": "rule1",
"2": "rule2"
}
}
]
}- Clause base syntax
{
"1": {
"question": "State your symptoms?",
"answer": {
"positive": "Yes, you are positive for ",
"negative": "We don't see any signs of "
}
},
"2": {
"question": "question/statement",
"answer": {
"positive": "positive statement with potential to add target at end",
"negative": "negative statement, target will be added at end"
}
}
}- Backward Chaining
Chankya >>> Tell me some features of this bird? You >>> high flight, strong legs, yellow legs [DEBUG] Target :: Falcons, Eagles ---> Matched :: 33.33333333333333 [INFO] I am not sure if this is the bird Falcons, Eagles [INFO] Hope that you are satisfied with your answers !
- Forward Chaining
Chankya >>> Tell me some features of this bird? You >>> high flight, strong legs, yellow legs [DEBUG] Target :: Falcons, Eagles ---> Matched :: 33.33333333333333 [DEBUG] Target :: Peacock ---> Matched :: 0.0 [DEBUG] Target :: Hen ---> Matched :: 0.0 [DEBUG] Target :: Albatrosses ---> Matched :: 0.0 [DEBUG] Target :: Paradise birds ---> Matched :: 0.0 [DEBUG] Target :: Crows ---> Matched :: 0.0 [DEBUG] Target :: Cuckoos ---> Matched :: 0.0 [DEBUG] Target :: Ducks, Geese and Swans ---> Matched :: 0.0 [INFO] I am not sure if this is the bird Falcons, Eagles [INFO] Hope that you are satisfied with your answers !