static public List <string> SetupFacts(List <string> true_facts, string provable)
{
facts = Parser.getFactsInput("..\\..\\FACTS.txt");
rules = Parser.getRulesInput("..\\..\\RULES.txt");
List <Fact> trueFacts = facts.FindAll(x => true_facts.Any(x.description.ToLower().Contains));
if (provable != "")
{
ProofNodeCF proven = directProofCF(provable,
trueFacts,
new HashSet <Rule>());
List <string> proofstrings = new List <string>();
printProofNodeCF(new List <ProofNodeCF> {
proven
}, proofstrings);
return(proofstrings);
}
else
{
List <ProofNodeCF> proofNodeCFs = directProofAllCF(trueFacts, new HashSet <Rule>());
List <string> proofstrings = new List <string>();
foreach (ProofNodeCF node in proofNodeCFs)
{
foreach (var fact in node.nextFacts)
{
if (fact.id.Contains("Игра"))
{
proofstrings.Add(fact.description);
}
}
//printProofNodeCF(proofNodeCFs, proofstrings);
}
return(proofstrings);
}
}
static ProofNodeCF directProofCF(string provable, List <Fact> trueFacts, HashSet <Rule> appliedRules, int depth = 0)
{
HashSet <Rule> iterationAppliedRules = new HashSet <Rule>();
foreach (Rule rule in rules)
{
if (!appliedRules.Contains(rule))
{
List <string> trueFactsIds = trueFacts.Select(x => x.id).ToList();
var intersection = trueFactsIds.Intersect(rule.premises).ToList();
intersection.Sort();
if (rule.premises.SequenceEqual(intersection))
{
if (rule.conclusions.Contains(provable))
{
List <Fact> premises = trueFacts.FindAll(x => rule.premises.Contains(x.id));
string desc = facts.Find(x => x.id == rule.conclusions[0]).description;
List <Fact> nextFacts = new List <Fact> {
new Fact(rule.conclusions[0], desc, calcCF(trueFacts, rule))
};
return(new ProofNodeCF(rule, premises, nextFacts, null, depth));
}
iterationAppliedRules.Add(rule);
appliedRules.Add(rule);
}
}
}
if (iterationAppliedRules.Count == 0)
{
return(null);
}
foreach (Rule rule in rules)
{
if (iterationAppliedRules.Contains(rule))
{
double CF = 0.0;
Fact possible = trueFacts.Find(x => x.id == rule.conclusions[0]);
if (possible == null)
{
CF = calcCF(trueFacts, rule);
}
else
{
double CF1 = calcCF(trueFacts, rule);
double CF2 = possible.CF;
if (CF1 >= 0 && CF2 >= 0)
{
CF = CF1 + CF2 - CF1 * CF2;
}
else if (CF1 < 0 && CF2 < 0)
{
CF = CF1 + CF2 + CF1 * CF2;
}
else
{
CF = (CF1 + CF2) / (1 - Math.Min(Math.Abs(CF1), Math.Abs(CF2)));
}
}
string desc = facts.Find(x => x.id == rule.conclusions[0]).description;
Fact conclusion = new Fact(rule.conclusions[0], desc, CF);
List <Fact> premises = trueFacts.FindAll(x => rule.premises.Contains(x.id));
ProofNodeCF res = directProofCF(provable, trueFacts.Append(conclusion).ToList(), appliedRules, depth + 1);
if (res != null)
{
return(new ProofNodeCF(rule, premises, new List <Fact> {
conclusion
}, new List <ProofNodeCF> {
res
}, depth));
}
}
}
return(null);
}