public static IEnumerable <TaggedWithScore> GetTaggedScoresFor(this ITagRegistry registry,
IEnumerable <ITagged> taggedElements, IReadOnlyCollection <int> sourceTags)
{
var relatedTags = GetRelatedTags(registry, sourceTags).ToArray();
return(taggedElements
.ContainingTags(sourceTags)
.Select(x => new TaggedWithScore(x, relatedTags.GetTotalWeightFor(x.Tags))));
}
public static IEnumerable <TagWeighting> GetRelatedTags(this ITagRegistry registry, IEnumerable <int> sourceTags, int depth)
{
var allRelated = new List <TagWeighting>();
var currentTags = sourceTags.ToArray();
for (var i = 0; i < depth; i++)
{
var currentDepthTagWeights = currentTags.SelectMany(registry.GetRelatedTags).ToArray();
allRelated.AddRange(currentDepthTagWeights);
currentTags = currentDepthTagWeights.Select(x => x.Tag).ToArray();
}
return(allRelated.AverageWeights());
}
public static IEnumerable <TagWeighting> GetRelatedTags(this ITagRegistry registry, params int[] sourceTags) => GetRelatedTags(registry, (IReadOnlyCollection <int>)sourceTags);
public static IEnumerable <TaggedWithScore> GetTaggedScoresFor(this ITagRegistry registry,
IEnumerable <ITagged> taggedElements, params int[] sourceTags)
=> GetTaggedScoresFor(registry, taggedElements, (IReadOnlyCollection <int>)sourceTags);
public static IEnumerable <TagWeighting> GetRelatedTags(this ITagRegistry registry, IEnumerable <int> sourceTags)
{
return(sourceTags
.SelectMany(registry.GetRelatedTags)
.AverageWeights());
}
