public static CatDistResult search(Category one, Category two, Dictionary <Category, Dictionary <Category, int> > distMap, int threshhold)
{
var result = oneIsParentOfTwo(one, two, distMap);
if (result != null)
{
return(result);
}
result = oneIsParentOfTwo(two, one, distMap);
if (result != null)
{
return(result);
}
var commonParents = allCommonParents(one, two, distMap, threshhold);
if (commonParents.Any())
{
var maxDist = commonParents.Max(r => r.dist());
result = commonParents.First(r => r.dist() == maxDist);
}
else
{
result = new CatDistResult(new Category()
{
Name = "Not found"
}, -1, -1);
}
return(result);
}
private static CatDistResult oneIsParentOfTwo(Category one, Category two, Dictionary <Category, Dictionary <Category, int> > distMap)
{
if (distMap.ContainsKey(one))
{
if (distMap[one].ContainsKey(two))
{
var result = new CatDistResult(one, 0, distMap[one][two]);
return(result);
}
}
return(null);
}
private static List <CatDistResult> allCommonParents(Category one, Category two, Dictionary <Category, Dictionary <Category, int> > distMap, int threshhold)
{
var results = new List <CatDistResult>();
int size = 0;
foreach (var parent in distMap.Reverse())
{
if (parent.Value.ContainsKey(one) && parent.Value.ContainsKey(two))
{
var r = new CatDistResult(parent.Key, parent.Value[one], parent.Value[two]);
results.Add(r);
if (++size >= threshhold)
{
break;
}
}
}
return(results);
}
public static IEnumerable <CatLinkResult> groupSimilarWords(Category parent, IEnumerable <Tuple <Category, double> > similarCategories, int searchDistThreshhold, Dictionary <Category, Dictionary <Category, int> > realCatMap)
{
var thisGroupSimilar = similarCategories.Select(x => new CatLinkResult()
{
category = parent, similarCategory = x.Item1, val = x.Item2, num = 1, dist = CatDistResult.search(parent, x.Item1, realCatMap, searchDistThreshhold)
});
return(thisGroupSimilar);
}
