private void RunSimilarityModel(CitationPopularityModel citationModel,
SimilarityRanker similarityModel)
{
Dictionary <string, double> scoredArticles = citationModel.PopularityScoredArticles;
SortedDictionary <double, PopularGroup> result =
new SortedDictionary <double, PopularGroup>(new DescDuplicateDoubleComp());
while (scoredArticles.Count() > similarityModel.MaxNumSimilar)
{
_PrlOpt.CancellationToken.ThrowIfCancellationRequested();
KeyValuePair <string, double> thisArt = getMaxVal(scoredArticles);
var similarArt = similarityModel.GetTopSimilarArticlesTo(thisArt.Key);
PopularGroup pop = new PopularGroup();
pop.TitleArticle = thisArt.Key;
foreach (KeyValuePair <double, string> p in similarArt)
{
_PrlOpt.CancellationToken.ThrowIfCancellationRequested();
try { pop.SimilarArticles[p.Key] = p.Value; }
catch (Exception) { }
try { scoredArticles.Remove(p.Value); }
catch (Exception) { }
}
result[thisArt.Value] = pop;
// remove already ranked articles
try { scoredArticles.Remove(thisArt.Key); }
catch (Exception) { }
}
// The few left overs
foreach (string art in scoredArticles.Keys)
{
_PrlOpt.CancellationToken.ThrowIfCancellationRequested();
PopularGroup pop = new PopularGroup();
pop.TitleArticle = art;
result[scoredArticles[art]] = pop;
}
// Write the fully ranked cluster results to the database
RankerDbAccess.WritePopularitySimilarityRankedClustersToDb(
VerticalId, result, _cToken);
}
public static SortedDictionary <DateTimeOffset, PopularGroup> ReadPopularitySimilarityRankedArticlesFromDb(
Grouping verticalId,
CancellationTokenSource cancellationToken)
{
ParallelOptions prlOpt = new ParallelOptions()
{
MaxDegreeOfParallelism = System.Environment.ProcessorCount,
CancellationToken = cancellationToken.Token
};
SortedDictionary <DateTimeOffset, PopularGroup> results =
new SortedDictionary <DateTimeOffset, PopularGroup>(new DescDuplicateDateTimeOffsetComp());
SortedDictionary <string, string> dataFromDb = new SortedDictionary <string, string>();
// Lock RANKINGS table
// Read (string, string> key,value pairs from the database into dataFromDb
//unlock RANKINGS table
char[] sep = { RankingDataProcessor.Separator };
foreach (string art in dataFromDb.Keys)
{
prlOpt.CancellationToken.ThrowIfCancellationRequested();
string[] parts = dataFromDb[art].Split(sep);
if (parts[0] != "S")
{
throw new Exception("[ERROR: RankerDbAccess::ReadPopularitySimilarityRankedArticlesFromDb()]"
+ " Error in the data read in.");
}
DateTimeOffset key = DateTimeOffset.Parse(parts[1]);
PopularGroup pop = new PopularGroup();
pop.TitleArticle = art;
for (int i = 2; i < parts.Count(); i = i + 2)
{
double d = Double.Parse(parts[i + 1]);
pop.SimilarArticles[d] = parts[i];
}
results[key] = pop;
}
return(results);
}