/// <summary>
/// Prepares the specified context.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="log">The log.</param>
/// <exception cref="ArgumentException">context</exception>
public override void Prepare(DocumentSelectResult context, ILogBuilder log)
{
/*
* String p_m = WeightDictionary.GetDictionaryFilename(, context.folder);
*
* if (File.Exists(p_m))
* {
* //objectSerialization.loadObjectFromXML<WeightDictionary>(p_m, log);
*
* }
*/
weightDictionary = WeightDictionary.LoadFile(WeightDictionary.GetDictionaryFilename(dictionaryFile, context.folder), log);
if (context.spaceModel == null)
{
String msg = "Error: TermWeight factor requires SpaceModel declared in the context for operation";
throw new ArgumentException(msg, nameof(context));
}
if (context.query.isNullOrEmpty())
{
context.query.QueryTerms = context.query.QueryTerms.Trim();
List <String> tkns = context.query.QueryTerms.getTokens(true, true, true, false, 4);
foreach (String tkn in tkns)
{
queryTerms.Add(context.stemmingContext.Stem(tkn));
}
}
}
/// <summary>
/// Scores the specified entry.
/// </summary>
/// <param name="entry">The entry.</param>
/// <param name="context">The context.</param>
/// <param name="log">The log.</param>
/// <returns></returns>
public override double Score(DocumentSelectResultEntry entry, DocumentSelectResult context, ILogBuilder log)
{
if (useMachineLearning)
{
WeightDictionary dc_vec = TermWeightModel.GetWeights(SelectedTerms.GetKeys(), entry.spaceDocument, context.spaceModel);
var n_vec = fvConstructor.ConstructFeatureVector(dc_vec, entry.AssignedID);
Double score = 0;
Int32 l_id = -1;
if (sc_id.ContainsKey(entry.AssignedID))
{
l_id = sc_id[entry.AssignedID];
}
score = classifier.DoScore(n_vec, log, l_id);
return(score);
}
else
{
if (scoreDictionary.ContainsKey(entry.AssignedID))
{
var fv = scoreDictionary[entry.AssignedID];
return(fv.CompressNumericVector(vectorCompression));
}
else
{
return(0);
}
}
}
/// <summary>
/// Filters the space model features.
/// </summary>
/// <param name="spaceModel">The space model.</param>
/// <param name="selectedFeatures">The selected features.</param>
/// <param name="log">The log.</param>
/// <returns></returns>
public static Int32 FilterSpaceModelFeatures(this SpaceModel spaceModel, WeightDictionary selectedFeatures, ILogBuilder log)
{
Int32 i = 0;
Int32 s = spaceModel.documents.Count() / 5;
Int32 c_filter_out = 0;
List <String> keys = selectedFeatures.GetKeys();
List <String> termsToRemove = spaceModel.terms.GetTokensOtherThan(keys);
for (int i2 = 0; i2 < spaceModel.documents.Count; i2++)
{
c_filter_out += spaceModel.documents[i2].FilterSelectedFeatures(termsToRemove, false);
if (i > s)
{
Double r = i2.GetRatio(spaceModel.documents.Count());
log.log("Filter SelectedFeatures [" + r.ToString("P2") + "]");
i = 0;
}
i++;
}
spaceModel.terms_known_label.FilterTokens(termsToRemove, false);
spaceModel.terms_unknown_label.FilterTokens(termsToRemove, false);
return(c_filter_out);
}
/// <summary>
/// Transforms to fv dictionary.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="TermWeightModel">The term weight model.</param>
/// <param name="function">The function.</param>
/// <returns></returns>
public static FeatureVectorSetDictionary TransformToFVDictionaryAsCategorySimilarity(this DocumentSelectResult context, FeatureWeightModel TermWeightModel, IVectorSimilarityFunction function, ILogBuilder log)
{
log.log("... Category Similarity ...");
List <string> selectedTerms = context.selectedFeatures.GetKeys(); //.entries.Select(x => x.name)?.ToList();
Dictionary <String, WeightDictionary> categoryDictionarties = new Dictionary <string, WeightDictionary>();
foreach (SpaceLabel label in context.spaceModel.labels)
{
Relationship <SpaceLabel, SpaceCategoryModel> categoryModel = context.spaceModel.LabelToCategoryLinks.GetAllRelationships(label).FirstOrDefault();
var c = TermWeightModel.GetWeights(selectedTerms, categoryModel.NodeB, context.spaceModel, label);
categoryDictionarties.Add(label.name, c);
}
FeatureVectorSetDictionary dict = new FeatureVectorSetDictionary();
String domainNameLast = "";
Double total = context.Count;
Int32 i = 0;
Int32 p = (context.Count / 20);
foreach (var entry in context.items)
{
i++;
WeightDictionary documentWeights = TermWeightModel.GetWeights(selectedTerms, entry.spaceDocument, context.spaceModel);
FeatureVector fv = new FeatureVector(entry.AssignedID);
fv.dimensions = new double[context.spaceModel.labels.Count];
Int32 c = 0;
Parallel.ForEach(context.spaceModel.labels, (label) =>
{
var docToClassSimilarity = function.ComputeSimilarity(categoryDictionarties[label.name], documentWeights);
fv.dimensions[context.spaceModel.labels.IndexOf(label)] = docToClassSimilarity;
});
Int32 r = i % p;
if (r == 0)
{
log.Append(" [" + i.GetRatio(context.Count).ToString("P2") + "] ");
}
dict.GetOrAdd(entry.DomainID).Add(fv, -1);
}
foreach (KeyValuePair <string, FeatureVectorWithLabelIDSet> pair in dict)
{
pair.Value.CloseDeploy();
}
log.log("... Preparation done...");
return(dict);
}
public override double ComputeSimilarity(WeightDictionary vectorA, WeightDictionary vectorB)
{
WeightDictionaryEntryPairs termPairs = new WeightDictionaryEntryPairs(vectorA, vectorB);
if (termPairs.Count == 0)
{
return(0);
}
return(Compute(termPairs));
}
/// <summary>
/// Gets the weights.
/// </summary>
/// <param name="termWhiteList">The term white list.</param>
/// <param name="document">The document.</param>
/// <param name="space">The space.</param>
/// <param name="label">The label.</param>
/// <returns></returns>
public WeightDictionary GetWeights(List <String> termWhiteList, SpaceDocumentModel document, SpaceModel space, SpaceLabel label = null)
{
WeightDictionary output = new WeightDictionary();
output.name = GetSignature() + "_" + document.name;
output.description = "Feature weight table constructed by [" + GetSignature() + "] for features [" + termWhiteList.Count + "] in document [" + document.name + "]";
output.nDimensions = nDimensions;
if (KERNELOPTION_USE_WHITELISTTERMS)
{
foreach (String term in termWhiteList)
{
if (document.terms.Contains(term))
{
throw new NotImplementedException();
//output.entries.Add(entry);
}
}
}
else
{
List <String> terms = document.terms.GetTokens();
for (int i = 0; i < document.terms.Count; i++)
{
String term = terms[i];
WeightDictionaryEntry entry = new WeightDictionaryEntry(term, 0);
if (DoUseLocalFunction)
{
entry = LocalFunction.GetElementFactorEntry(term, document);
}
foreach (FeatureWeightFactor gf in GlobalFactors)
{
entry = entry * (gf.GlobalFunction.GetElementFactorEntry(term, space, label) * gf.weight);
}
if (document.weight != 1)
{
entry = entry * document.weight;
}
output.Merge(entry);
//output.AddEntry(term, entry.dimensions, false);
}
}
return(output);
}
public FeatureCWPAnalysisEntryReport(String __name, String description, folderNode _folder, FeatureCWPAnalysisSettings.AnalysisPurpose _purpose)
{
purpose = _purpose;
name = __name;
if (purpose != FeatureCWPAnalysisSettings.AnalysisPurpose.application)
{
//EntryDictionary = new WeightDictionary("DictionaryFor" + CategoryID, "Dictionary with term metrics for category " + CategoryID);
EntryDictionary = new WeightDictionary("DictionaryFor" + name, description);
EntryDictionary.nDimensions = fields().Count;
}
folder = _folder;
}
/// <summary>
/// Prepares the specified context.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="log">The log.</param>
/// <exception cref="ArgumentException">context</exception>
public override void Prepare(DocumentSelectResult context, ILogBuilder log)
{
String p_m = FeatureWeightModel.GetModelDefinitionFilename(modelDefinitionFile, context.folder);
String p_d = FeatureWeightModel.GetModelDataFilename(modelDefinitionFile, context.folder);
TermWeightModel = FeatureWeightModel.LoadModel(p_m, log);
//if (File.Exists(p_m))
//{
// //TermWeightModel = objectSerialization.loadObjectFromXML<FeatureWeightModel>(p_m, log);
//}
TermWeightModel.Deploy(log);
if (context.spaceModel == null)
{
String msg = "Error: TermWeight factor requires SpaceModel declared in the context for operation";
throw new ArgumentException(msg, nameof(context));
}
if (File.Exists(p_d) && useStoredData)
{
WeightingModelDataSet data = objectSerialization.loadObjectFromXML <WeightingModelDataSet>(p_d, log);
TermWeightModel.LoadModelDataSet(data, log);
if (useSelectedFeatures)
{
SelectedTerms = WeightDictionary.LoadFile(WeightDictionary.GetDictionaryFilename(modelDefinitionFile + "_sf", context.folder), log);
}
}
else
{
TermWeightModel.PrepareTheModel(context.spaceModel, log);
}
if (context.query.isNullOrEmpty())
{
context.query.QueryTerms = context.query.QueryTerms.Trim();
List <String> tkns = context.query.QueryTerms.getTokens(true, true, true, false, 4);
foreach (String tkn in tkns)
{
queryTerms.Add(context.stemmingContext.Stem(tkn));
}
}
}
public void DeployAndRun(ILogBuilder log, SpaceModel _space, folderNode folder)
{
filter.Deploy(log, folder);
weightedFeatures = new WeightDictionary(name + "_weg" + filter.limit.ToString(), "weighted features, before filter");
selectedFeatures = new WeightDictionary(name + "_sel" + filter.limit.ToString(), "selected weighted featyres");
var selected = filter.SelectFeatures(_space, log, folder, weightedFeatures);
foreach (var pair in selected)
{
selectedFeatures.AddEntry(pair.Key, pair.Value);
}
weightedFeatures.Save(folder, log, WeightDictionary.GetDictionaryFilename(weightedFeatures.name, folder));
selectedFeatures.Save(folder, log, WeightDictionary.GetDictionaryFilename(selectedFeatures.name, folder));
}
/// <summary>
/// Constructs global weight fictionary using global elements
/// </summary>
/// <param name="terms">The terms.</param>
/// <param name="space">The space.</param>
/// <param name="label">The label.</param>
/// <returns></returns>
public WeightDictionary GetElementFactors(IEnumerable <string> terms, SpaceModel space, SpaceLabel label = null)
{
var output = new WeightDictionary();
output.name = GetSignature() + "_globalOnly";
foreach (String term in terms)
{
Double score = GetElementFactor(term, space, label);
WeightDictionaryEntry entry = new WeightDictionaryEntry(term, score);
output.AddEntry(entry, true);
}
output.description = "Global weights for [" + output.Count + "] terms.";
return(output);
}
private void SetWeightButton_Click(object sender, EventArgs e)
{
this.allStringWeightList = new List <WeightDictionary>();
Dictionary <int, int> weightRelation = convertColumnIndex(this.weightRelation);
if (!weightAndColumnNameRelationIndexConverted)
{
convertWeightAndColumnNameRelationIndex();
this.weightAndColumnNameRelationIndexConverted = true;
}
foreach (KeyValuePair <int, int> kvp in weightRelation)
{
WeightDictionary weightDict = new WeightDictionary();
int weightValueColumn = kvp.Key;
int weightNameColumn = kvp.Value;
weightDict.columnName = weightAndColumnNameRelation[weightValueColumn];
weightDict.variableName = selectedColumnVariableDict[weightAndColumnNameRelation[weightValueColumn]].ToString();
for (int i = 0; i < this.selectedColumnDataGridView.Rows.Count; i++)
{
if (!selectedColumnDataGridView.Rows[i].Cells[weightNameColumn].Value.ToString().Equals("") && selectedColumnDataGridView.Rows[i].Cells[weightValueColumn].Value == null)
{
DialogResult dr1 = MessageBox.Show(loadGlobalChineseCharacters.GlobalChineseCharactersDict["error_1"] + "," + weightAndColumnNameRelation[weightValueColumn] + loadGlobalChineseCharacters.GlobalChineseCharactersDict["weight"] + ":" + (i + 1) + loadGlobalChineseCharacters.GlobalChineseCharactersDict["row"], "message");
return;
}
else if (selectedColumnDataGridView.Rows[i].Cells[weightNameColumn].Value.ToString().Equals("") && selectedColumnDataGridView.Rows[i].Cells[weightValueColumn].Value == null)
{
break;
}
else if (!selectedColumnDataGridView.Rows[i].Cells[weightNameColumn].Value.ToString().Equals("") && selectedColumnDataGridView.Rows[i].Cells[weightValueColumn].Value != null)
{
string valueStr = selectedColumnDataGridView.Rows[i].Cells[weightValueColumn].Value.ToString();
float value = Convert.ToSingle(valueStr);
string name = selectedColumnDataGridView.Rows[i].Cells[weightNameColumn].Value.ToString();
weightDict.Add(name, value);
}
}
allStringWeightList.Add(weightDict);
}
printAllWeightList();
}
/// <summary>
/// Builds dictionary of global element factors
/// </summary>
/// <param name="terms">The terms.</param>
/// <param name="space">The space.</param>
/// <param name="label">The label.</param>
/// <returns></returns>
public WeightDictionary GetElementFactors(IEnumerable <String> terms, SpaceModel space, SpaceLabel label = null)
{
WeightDictionary output = new WeightDictionary();
switch (resultType)
{
case FunctionResultTypeEnum.numeric:
output.nDimensions = 1;
break;
case FunctionResultTypeEnum.numericVectorForMultiClass:
output.nDimensions = space.labels.Count;
break;
}
foreach (String term in terms)
{
output.AddEntry(GetElementFactorEntry(term, space, label));
}
return(output);
}
public void Deploy(ILogBuilder logger, folderNode folder = null)
{
if (!outputFilename.isNullOrEmpty())
{
if (folder != null)
{
String p_m = folder.pathFor(outputFilename, imbSCI.Data.enums.getWritableFileMode.none, "", false);
precompiledSelection = WeightDictionary.LoadFile(p_m, logger);
}
}
if (WeightModel != null)
{
WeightModel.DoUseLocalFunction = false;
WeightModel.Deploy(logger);
}
//function = functionSettings.GetFunction(logger);
//_isEnabled = function.IsEnabled;
}
/// <summary>
/// Constructs a feature vector - having dimension values set by <see cref="dimensionFunctionSet"/>
/// </summary>
/// <param name="vector">The vector.</param>
/// <returns></returns>
public FeatureVector ConstructFeatureVector(WeightDictionary terms, String name)
{
FeatureVector fv = new FeatureVector(name);
Int32 c = 0;
Int32 d = terms.nDimensions;
fv.dimensions = new double[dimensionFunctionSet.Count * d]; //terms.index.Select(x => x.Value.CompressNumericVector(compression)).ToArray(); // new double[dimensionFunctionSet.Count];
foreach (FeatureSpaceDimensionBase dimension in dimensionFunctionSet)
{
for (int i = 0; i < d; i++)
{
fv.dimensions[c] = dimension.ComputeDimension(terms, i);
c++;
}
}
return(fv);
}
///// <summary>
///// Transforms to fv dictionary.
///// </summary>
///// <param name="context">The context.</param>
///// <param name="TermWeightModel">The term weight model.</param>
///// <param name="function">The function.</param>
///// <returns></returns>
//public static FeatureVectorSetDictionary TransformToFVDictionaryAsPageInCategorySimilarity(this DocumentSelectResult context, FeatureWeightModel TermWeightModel, IVectorSimilarityFunction function, ILogBuilder log)
//{
// log.log("... Page Similarity ...");
// List<string> selectedTerms = context.selectedFeatures.GetKeys();
// var ByDomain = context.GetByDomain(log);
// Dictionary<string, List<string>> assignIDByLabel = context.featureSpace.labelToDocumentAssociations.GetAllRelationShipByName(true);
// var ByCategory = context.GetByAssignIDCategory(assignIDByLabel,log);
// Dictionary<String, List<DocumentSelectResultEntry>> EntryByLabel = new Dictionary<string, List<DocumentSelectResultEntry>>();
// Dictionary<String, WeightDictionary> documentDictionarties = new Dictionary<string, WeightDictionary>();
// foreach (var entry in context.items)
// {
// WeightDictionary documentWeights = TermWeightModel.GetWeights(selectedTerms, entry.spaceDocument, context.spaceModel);
// documentDictionarties.Add(entry.AssignedID, documentWeights);
// }
// FeatureVectorSetDictionary dict = new FeatureVectorSetDictionary();
// Double total = context.Count;
// Int32 i = 0;
// Int32 p = (context.Count / 10);
// //List<List<Double>> matrix = new List<List<double>>();
// //foreach (var entry in context.items)
// //{
// // matrix.Add(new List<double>());
// //}
// //for (int x = 0; x < context.items.Count; x++)
// //{
// // for (int y = 0; y < context.items.Count; x++)
// // {
// // }
// //}
// ConcurrentDictionary<String, Double> computedPairs = new ConcurrentDictionary<string, double>();
// foreach (var domainPair in ByCategory)
// {
// List<DocumentSelectResultEntry> relatives = ByCategory[domainPair.Key].ToList();
// foreach (var entry in relatives)
// {
// i++;
// FeatureVector fv = new FeatureVector(entry.AssignedID);
// // List<Double> d = new List<>();
// fv.dimensions = new double[relatives.Count - 1];
// // List<String> keys = documentDictionarties.Keys.ToList();
// Int32 hostInd = relatives.IndexOf(entry);
// Int32 c = 0;
// //foreach (var pair in documentDictionarties)
// //{
// Parallel.ForEach(relatives, (pair) =>
// {
// Int32 ind = relatives.IndexOf(pair); // keys.IndexOf(pair.AssignedID);
// if (ind >= hostInd)
// {
// ind = ind - 1;
// }
// if (pair.AssignedID != entry.AssignedID)
// {
// Double docToClassSimilarity = 0;
// if (computedPairs.ContainsKey(entry.AssignedID + pair.AssignedID))
// {
// docToClassSimilarity = computedPairs[entry.AssignedID + pair.AssignedID];
// }
// else if (computedPairs.ContainsKey(pair.AssignedID + entry.AssignedID))
// {
// docToClassSimilarity = computedPairs[pair.AssignedID + entry.AssignedID];
// }
// else
// {
// var vecA = documentDictionarties[pair.AssignedID];
// var vecB = documentDictionarties[entry.AssignedID];
// docToClassSimilarity = function.ComputeSimilarity(vecA, vecB);
// if (docToClassSimilarity > 0)
// {
// }
// if (!computedPairs.ContainsKey(entry.AssignedID + pair.AssignedID))
// {
// computedPairs.GetOrAdd(entry.AssignedID + pair.AssignedID, docToClassSimilarity);
// //computedPairs.AddOrUpdate(entry.AssignedID + pair.Key, docToClassSimilarity);
// }
// else if (!computedPairs.ContainsKey(pair.AssignedID + entry.AssignedID))
// {
// computedPairs.GetOrAdd(pair.AssignedID + entry.AssignedID, docToClassSimilarity);
// }
// }
// fv.dimensions[ind] = docToClassSimilarity;
// }
// });
// Int32 r = i % p;
// if (r == 0)
// {
// log.Append(" [" + i.GetRatio(context.Count).ToString("P2") + "] ");
// }
// dict.GetOrAdd(entry.DomainID).Add(fv, -1);
// }
// }
// //foreach (KeyValuePair<string, FeatureVectorWithLabelIDSet> pair in dict)
// //{
// // pair.Value.CloseDeploy();
// //}
// log.log("... Preparation finished ...");
// return dict;
//}
/// <summary>
/// Transforms to fv dictionary.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="TermWeightModel">The term weight model.</param>
/// <param name="function">The function.</param>
/// <returns></returns>
public static FeatureVectorSetDictionary TransformToFVDictionaryAsSiteSimilarity(this DocumentSelectResult context, FeatureWeightModel TermWeightModel, IVectorSimilarityFunction function, ILogBuilder log)
{
log.log("... Site Similarity ...");
List <string> selectedTerms = context.selectedFeatures.GetKeys(); //.entries.Select(x => x.name)?.ToList();
Dictionary <String, WeightDictionary> categoryDictionarties = new Dictionary <string, WeightDictionary>();
Dictionary <String, WeightDictionary> documentDictionarties = new Dictionary <string, WeightDictionary>();
var byDomain = context.GetByDomain(log);
FeatureVectorSetDictionary dict = new FeatureVectorSetDictionary();
Double total = context.Count;
Int32 i = 0;
Int32 p = (context.Count / 10);
foreach (var pair in byDomain)
{
i++;
SpaceDocumentModel siteModel = new SpaceDocumentModel();
foreach (var ent in pair.Value)
{
WeightDictionary documentWeights = TermWeightModel.GetWeights(selectedTerms, ent.spaceDocument, context.spaceModel);
documentDictionarties.Add(ent.AssignedID, documentWeights);
siteModel.Children.Add(ent.spaceDocument);
//siteModel.terms.MergeDictionary(ent.spaceDocument.terms);
}
siteModel.Flatten(false);
categoryDictionarties.Add(pair.Key, TermWeightModel.GetWeights(selectedTerms, siteModel, context.spaceModel));
foreach (var ent in pair.Value)
{
FeatureVector fv = new FeatureVector(ent.AssignedID);
fv.dimensions = new double[context.spaceModel.labels.Count];
// documentDictionarties[ent.AssignedID].entries
var docToClassSimilarity = function.ComputeSimilarity(categoryDictionarties[pair.Key], documentDictionarties[ent.AssignedID]);
fv.dimensions[0] = docToClassSimilarity;
dict.GetOrAdd(pair.Key).Add(fv, -1);
}
Int32 r = i % p;
if (r == 0)
{
log.Append(" [" + i.GetRatio(context.Count).ToString("P2") + "] ");
}
}
foreach (KeyValuePair <string, FeatureVectorWithLabelIDSet> pair in dict)
{
pair.Value.CloseDeploy();
}
log.log("... Preparation finished ...");
return(dict);
}
public abstract double ComputeDimension(WeightDictionary vector, Int32 d = 0);
/// <summary> /// Computes the similarity. /// </summary> /// <param name="vectorA">The vector a.</param> /// <param name="vectorB">The vector b.</param> /// <returns></returns> //public abstract Double ComputeSimilarity(IEnumerable<WeightDictionaryEntry> vectorA, IEnumerable<WeightDictionaryEntry> vectorB); public abstract double ComputeSimilarity(WeightDictionary vectorA, WeightDictionary vectorB);
/// <summary>
/// Picks specified number of sample documents and constructs a demo table, showing all term weight components
/// </summary>
/// <param name="space">The space.</param>
/// <param name="weightModel">The weight model.</param>
/// <param name="sampleDocuments">The sample documents.</param>
/// <param name="name">The name.</param>
/// <param name="description">The description.</param>
/// <returns></returns>
public static DataTable MakeWeightModelDemoTable(this SpaceModel space, FeatureWeightModel weightModel, WeightDictionary selectedFeatures, Int32 sampleDocuments, String name, String description)
{
DataTable table = new DataTable();
table.SetTitle(name);
table.SetDescription(description);
table.SetAdditionalInfoEntry("Documents", space.documents.Count, "Total count of document vectors");
table.SetAdditionalInfoEntry("Local function", weightModel.LocalFunction.GetSignature(), weightModel.LocalFunction.description);
var sampleIn = space.documents.Take(Math.Min(sampleDocuments, space.documents.Count)).ToList();
List <SpaceDocumentModel> sample = new List <SpaceDocumentModel>();
foreach (var s in sampleIn)
{
sample.Add(s);
}
List <String> terms = new List <String>();
var terms_in = sample.First().GetTerms(true, true).GetTokens();
foreach (var t in terms_in)
{
if (selectedFeatures.ContainsKey(t))
{
terms.Add(t);
}
if (terms.Count > 500)
{
break;
}
}
DataColumn column_token = table.Add("Name", "Name of the document vector", "Name", typeof(String), imbSCI.Core.enums.dataPointImportance.normal).SetWidth(50);
List <DataColumn> dimensions = new List <DataColumn>();
DataColumn loc = null;
List <DataColumn> localColumns = new List <DataColumn>();
for (int i = 0; i < sample.Count; i++)
{
var doc = sample[i];
localColumns.Add(
table.Add(weightModel.LocalFunction.shortName + i.ToString(),
weightModel.LocalFunction.GetSignature() + " for document: " + doc.name,
weightModel.LocalFunction.shortName, typeof(Double), imbSCI.Core.enums.dataPointImportance.normal, "F5",
weightModel.LocalFunction.GetSignature() + "[" + i.ToString("D2") + "]").SetGroup("Local"));
}
Int32 c = 0;
List <DataColumn> globalColumns = new List <DataColumn>();
foreach (FeatureWeightFactor gl in weightModel.GlobalFactors)
{
globalColumns.Add(
table.Add(gl.GlobalFunction.shortName + c.ToString(),
gl.GlobalFunction.shortName + " at w= " + gl.weight,
gl.GlobalFunction.shortName, typeof(Double), imbSCI.Core.enums.dataPointImportance.important, "F5",
gl.Settings.GetSignature() + "[" + c.ToString("D2") + "]").SetGroup("Global"));
c++;
}
Int32 ct = 0;
List <DataColumn> totalColumns = new List <DataColumn>();
foreach (var doc in sample)
{
totalColumns.Add(
table.Add("TotalScore" + ct.ToString(),
weightModel.LocalFunction.GetSignature() + " for document: " + doc.name,
weightModel.LocalFunction.shortName, typeof(Double), imbSCI.Core.enums.dataPointImportance.normal, "F5",
weightModel.LocalFunction.GetSignature() + "[" + ct.ToString("D2") + "]").SetGroup("Total"));
ct++;
}
/*
* for (int i = 0; i < sample.Count; i++)
* {
* var doc = sample[i];
*
* foreach (String term in terms)
* {
* weightModel.GetCompositeEntry(term, doc, space);
* }
*
* }*/
foreach (String term in terms)
{
var dr = table.NewRow();
dr[column_token] = term;
Int32 li = 0;
foreach (DataColumn local in localColumns)
{
dr[local] = weightModel.LocalFunction.GetElementFactor(term, sample[li]);
li++;
}
li = 0;
foreach (DataColumn local in globalColumns)
{
dr[local] = weightModel.GlobalFactors[li].GlobalFunction.GetElementFactor(term, space);
li++;
}
li = 0;
foreach (DataColumn local in totalColumns)
{
dr[local] = weightModel.GetWeight(term, sample[li], space); //. //GetElementFactor(term, sample[li]);
li++;
}
table.Rows.Add(dr);
}
return(table);
}
/// <summary>
/// Makes ranked weight table
/// </summary>
/// <param name="terms">The terms.</param>
/// <param name="name">The name.</param>
/// <param name="description">The description.</param>
/// <param name="dimension">Custom names of dimensions - for case of vector collection</param>
/// <param name="limit">The limit.</param>
/// <returns></returns>
public static DataTable MakeTable(this WeightDictionary terms, String name, String description, List <String> dimension = null, Int32 limit = 0, Int32 sortByDimension = 0, Int32 distinctBlockSize = 25)
{
DataTable table = new DataTable();
if (sortByDimension > 0)
{
if (sortByDimension < dimension.Count)
{
name = name + "_" + dimension[sortByDimension];
}
else
{
name = name + "_" + sortByDimension.ToString("D3");
}
}
table.SetTitle(name);
table.SetDescription(description);
List <WeightDictionaryEntry> ranking = terms.index.Values.OrderByDescending(x => x.dimensions[sortByDimension]).ToList();
String sortedByDimension = dimension[sortByDimension];
if (dimension == null)
{
dimension = new List <string>();
dimension.Add("Weight");
}
table.SetAdditionalInfoEntry("Count", terms.Count, "Total weighted features in the dictionary");
table.SetAdditionalInfoEntry("Dimensions", dimension.Count, "Number of dimensions");
DataColumn column_rank = table.Add("Rank", "Rank by frequency", "R", typeof(Int32), imbSCI.Core.enums.dataPointImportance.normal).SetWidth(6);
DataColumn column_token = table.Add("Token", "Token", "t", typeof(String), imbSCI.Core.enums.dataPointImportance.normal).SetWidth(20);
List <DataColumn> dimensions = new List <DataColumn>();
Dictionary <String, List <Double> > distinctValues = new Dictionary <string, List <Double> >();
Int32 cd = 1;
foreach (String dim in dimension)
{
var cn = table.Add(dim, "Associated dimension [" + cd.ToString() + "] " + dim, dim, typeof(Double), imbSCI.Core.enums.dataPointImportance.normal, "F5", dim);
cn.SetWidth(10);
distinctValues.Add(dim, new List <Double>());
dimensions.Add(cn);
cd++;
}
var list = ranking;
if (limit > 0)
{
list = ranking.Take(Math.Min(limit, ranking.Count)).ToList();
if (list.Count < terms.Count)
{
table.AddExtra("Table contains top [" + list.Count + "] entries, out of [" + terms.Count + "] enumerated in the feature weighted dictionary");
}
}
Int32 sortByDimensionNonDistinct = 0;
Int32 c = 1;
foreach (var pair in list)
{
if (distinctValues[sortedByDimension].Contains(pair.dimensions[sortByDimension]))
{
sortByDimensionNonDistinct++;
}
else
{
sortByDimensionNonDistinct = 0;
}
if (sortByDimensionNonDistinct < distinctBlockSize)
{
var dr = table.NewRow();
dr[column_rank] = c;
//dr[column_id] = terms.GetTokenID(pair.Key);
dr[column_token] = pair.name;
Int32 ci = 0;
foreach (DataColumn dimCol in dimensions)
{
if (ci < pair.dimensions.Length)
{
var v = pair.dimensions[ci];
if (!distinctValues[dimCol.ColumnName].Contains(v))
{
distinctValues[dimCol.ColumnName].Add(v);
}
dr[dimCol] = v;
}
ci++;
}
//dr[column_freq] = pair.Value;
c++;
table.Rows.Add(dr);
}
}
foreach (String dim in dimension)
{
if (dim != sortedByDimension)
{
if (distinctValues[dim].Count < 2)
{
table.Columns.Remove(dim);
table.SetAdditionalInfoEntry(dim + " removed", "Removed as having no distinct values", "Automatically removed");
}
}
}
return(table);
}
//public Boolean ComputeFeatureScores(WeightDictionary featureScores, SpaceModel space, ILogBuilder log, folderNode folder = null)
//{
// return doAll;
//}
/// <summary>
/// Selects the top <see cref="limit"/> terms, ranked by <see cref="function"/>
/// </summary>
/// <param name="space">The space.</param>
/// <returns></returns>
public List <KeyValuePair <string, double> > SelectFeatures(SpaceModel space, ILogBuilder log, folderNode folder = null, WeightDictionary featureScores = null)
{
Dictionary <String, Double> rank = new Dictionary <string, double>();
Boolean doAll = false;
if (limit == -1)
{
doAll = true;
}
if (featureScores == null)
{
featureScores = new WeightDictionary();
}
var tokens = space.terms_known_label.GetTokens();
if (precompiledSelection != null && precompiledSelection.Count > 0)
{
log.log("Using precompiled selection filter from [" + outputFilename + "]");
featureScores.Merge(precompiledSelection);
}
else
{
WeightModel.PrepareTheModel(space, log);
featureScores = WeightModel.GetElementFactors(tokens, space);
}
if (tokens.Count() <= limit)
{
doAll = true;
}
if (doAll)
{
List <KeyValuePair <string, double> > outAll = new List <KeyValuePair <string, double> >();
foreach (String tkn in tokens)
{
outAll.Add(new KeyValuePair <string, double>(tkn, 1));
}
return(outAll);
}
//function.PrepareTheModel(space, log);
if (!outputFilename.isNullOrEmpty())
{
if (folder != null)
{
String p_m = folder.pathFor(outputFilename, imbSCI.Data.enums.getWritableFileMode.none, "", false);
featureScores.Save(folder, log, outputFilename);
//precompiledSelection = WeightDictionary.LoadFile(p_m, logger);
}
}
foreach (WeightDictionaryEntry en in featureScores.index.Values)
{
// rank.Add(en.name, en.weight);
Double v = 0;
if (featureScores.nDimensions > 1)
{
v = en.CompressNumericVector(nVectorValueSelectionOperation);
}
else
{
v = en.weight;
}
Boolean ok = true;
if (RemoveZero)
{
if (v == 0)
{
ok = false;
}
}
if (ok)
{
rank.Add(en.name, v);
}
}
var rankSorted = rank.OrderByDescending(x => x.Value).ToList();
List <KeyValuePair <string, double> > top = rankSorted.Take(Math.Min(limit, rankSorted.Count)).ToList();
return(top);
}
public static void SetReportDataFields(this classificationReport report, WeightDictionary selected)
{
// report.data.Add(nameof(ReportDataFieldEnum.PagePerSite), classifier.GetSignature(), "Signature of the classification algorithm");
report.data.Add(nameof(ReportDataFieldEnum.SelectedFeatures), selected.Count.ToString(), "Number of selected features");
// report.data.Add(nameof(ReportDataFieldEnum.FeatureWeighting), featureWeight.GetSignature(), "Signature of feature weight model");
}
public override double ComputeDimension(WeightDictionary vector, Int32 d = 0)
{
var entry = vector.GetValue(term, d);
return(entry);
}
public override ExperimentDataSetFoldContextPair <OperationContext> Execute(ILogBuilder logger, OperationContext executionContextMain = null, ExperimentModelExecutionContext executionContextExtra = null)
{
ExperimentDataSetFoldContextPair <OperationContext> output = new ExperimentDataSetFoldContextPair <OperationContext>(fold, executionContextMain);
Open();
String p_m = FeatureWeightModel.GetModelDefinitionFilename(setup.OutputFilename, fold_notes.folder);
String p_d = FeatureWeightModel.GetModelDataFilename(setup.OutputFilename, fold_notes.folder);
String w_t = WeightDictionary.GetDictionaryFilename(setup.OutputFilename, fold_notes.folder);
Boolean skip = false;
if (setup.skipIfExisting)
{
if (File.Exists(p_m) && File.Exists(p_d) && File.Exists(w_t))
{
logger.log("WeightTable [" + p_d + "] found, skipping the operation");
skip = true;
}
}
if (!skip)
{
output.context.DeployDataSet(fold, logger);
entityOperation.TextRendering(output.context, notes);
/*
* entityOperation.TextPreblendFilter(output.context, notes);
*
* entityOperation.TextBlending(output.context, notes);
*/
corpusOperation.SpaceModelPopulation(output.context, notes);
corpusOperation.SpaceModelCategories(output.context, notes);
corpusOperation.FeatureSelection(output.context, notes, requirements.MayUseSelectedFeatures);
output.context.SelectedFeatures.Save(fold_notes.folder, notes, setup.OutputFilename + "_fs");
//corpusOperation.weightModel.
corpusOperation.weightModel.PrepareTheModel(output.context.spaceModel, logger);
var wt_s = corpusOperation.weightModel.GetElementFactors(output.context.SelectedFeatures.GetKeys(), output.context.spaceModel);
wt_s.Save(fold_notes.folder, notes, setup.OutputFilename);
corpusOperation.weightModel.Save(setup.OutputFilename, fold_notes.folder, notes);
OperationContextReport reportOperation = new OperationContextReport();
reportOperation.DeploySettingsBase(notes);
reportOperation.GenerateReports(output.context, setup.reportOptions, notes);
}
Close();
return(output);
}
/// <summary>
/// Prepares the specified context.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="log">The log.</param>
/// <exception cref="ArgumentException">context</exception>
public override void Prepare(DocumentSelectResult context, ILogBuilder log)
{
//context.folder.GetOrFindFiles("*", dictionaryFile + "*.xml");
scoreDictionary = FeatureVectorDictionaryWithDimensions.LoadFile(context.folder, dictionaryFile, log); // WeightDictionary.LoadFile(WeightDictionary.GetDictionaryFilename(dictionaryFile, context.folder), log);
if (scoreDictionary == null)
{
String msg = "Error: Failed to find score dictionary [" + dictionaryFile + "] in " + context.folder.path;
throw new ArgumentException(msg, nameof(context));
}
if (useMachineLearning)
{
#region --------------- PREPARING TERM WEIGHT MODEL
String p_m = FeatureWeightModel.GetModelDefinitionFilename(modelDefinitionFile, context.folder);
String p_d = FeatureWeightModel.GetModelDataFilename(modelDefinitionFile, context.folder);
if (TermWeightModel == null)
{
TermWeightModel = FeatureWeightModel.LoadModel(p_m, log);
}
TermWeightModel.Deploy(log);
if (context.spaceModel == null)
{
String msg = "Error: TermWeight factor requires SpaceModel declared in the context for operation";
throw new ArgumentException(msg, nameof(context));
}
if (File.Exists(p_d) && useStoredData)
{
WeightingModelDataSet data = objectSerialization.loadObjectFromXML <WeightingModelDataSet>(p_d, log);
TermWeightModel.LoadModelDataSet(data, log);
if (useSelectedFeatures)
{
SelectedTerms = WeightDictionary.LoadFile(WeightDictionary.GetDictionaryFilename(modelDefinitionFile + "_sf", context.folder), log);
}
}
else
{
TermWeightModel.PrepareTheModel(context.spaceModel, log);
}
if (SelectedTerms.Count == 0)
{
SelectedTerms = context.selectedFeatures;
}
List <String> sel_tkns = new List <String>();
sel_tkns.AddRange(SelectedTerms.index.Values.Select(x => x.name));
if (!sel_tkns.Any())
{
sel_tkns.AddRange(context.spaceModel.terms_known_label.GetTokens());
}
#endregion
fvConstructor.Deploy(featureMethod.constructor, sel_tkns);
classifier = featureMethod.classifierSettings.GetClassifier();
sc_id = scoreDictionary.GetVectorsWithLabelID(null, criterion).ToNameVsLabelID();
List <FeatureVectorWithLabelID> trainingSet = new List <FeatureVectorWithLabelID>();
foreach (var item in context.items)
{
if (sc_id.ContainsKey(item.AssignedID))
{
WeightDictionary dc_vec = TermWeightModel.GetWeights(sel_tkns, item.spaceDocument, context.spaceModel);
var n_vec = fvConstructor.ConstructFeatureVector(dc_vec, item.AssignedID);
FeatureVectorWithLabelID id_vec = new FeatureVectorWithLabelID(n_vec, sc_id[item.AssignedID]);
trainingSet.Add(id_vec);
}
}
log.log("Training [" + classifier.name + "] with [" + sc_id.Count + "] feature vectors.");
classifier.DoTraining(trainingSet, log);
}
}
public override double ComputeDimension(WeightDictionary vector, Int32 d = 0)
{
var entry = similarityFunction.ComputeSimilarity(vector, classVector.terms); //vector.GetValue(term, d);
return(entry);
}
public override ExperimentDataSetFoldContextPair <OperationContext> Execute(ILogBuilder logger, OperationContext executionContextMain = null, ExperimentModelExecutionContext executionContextExtra = null)
{
ExperimentDataSetFoldContextPair <OperationContext> output = new ExperimentDataSetFoldContextPair <OperationContext>(fold, executionContextMain);
Open();
Boolean skip = false;
// String fn = setup.OutputFilename;
String p_m = WeightDictionary.GetDictionaryFilename(setup.OutputFilename, fold_notes.folder); //FeatureWeightModel.GetModelDefinitionFilename(setup.OutputFilename, fold_notes.folder);
//String p_d = FeatureWeightModel.GetModelDataFilename(setup.OutputFilename, fold_notes.folder);
if (setup.skipIfExisting)
{
if (File.Exists(p_m))
{
logger.log("WeightTable [" + p_m + "] found, skipping the operation");
skip = true;
}
}
if (!skip)
{
notes.log("Rendering primary view");
// ------------------- PRIMARY CONTEXT
output.context.DeployDataSet(fold, logger);
primaryEntityOperation.TextRendering(output.context, notes);
//primaryEntityOperation.TextPreblendFilter(output.context, notes);
//primaryEntityOperation.TextBlending(output.context, notes);
corpusOperation.SpaceModelPopulation(output.context, notes);
corpusOperation.SpaceModelCategories(output.context, notes);
corpusOperation.FeatureSelection(output.context, notes, requirements.MayUseSelectedFeatures);
OperationContext primaryContext = output.context;
// ------------------- SECONDARY CONTEXT
output.context = new OperationContext();
notes.log("Rendering secondary view");
output.context.DeployDataSet(fold, logger);
secondaryEntityOperation.TextRendering(output.context, notes);
// secondaryEntityOperation.TextPreblendFilter(output.context, notes);
// secondaryEntityOperation.TextBlending(output.context, notes);
corpusOperation.SpaceModelPopulation(output.context, notes);
corpusOperation.SpaceModelCategories(output.context, notes);
corpusOperation.FeatureSelection(output.context, notes, requirements.MayUseSelectedFeatures);
OperationContext secondaryContext = output.context;
ProjectionDictionary projectionPairs = DocumentRankingTools.ConstructPairDictionary(primaryContext.spaceModel.documents, secondaryContext.spaceModel.documents);
DocumentSelectResult drmContext = output.context.PrepareContext(rankingOperation, fold_notes.folder, logger);
drmContext = rankingOperation.ExecuteEvaluation(drmContext, logger);
drmContext.description = "Document score assigned to the primary text render" + name;
drmContext.saveObjectToXML(fold_notes.folder.pathFor("DS_" + name + "_projection_score.xml", imbSCI.Data.enums.getWritableFileMode.overwrite, "Projection within [" + name + "] operation"));
TokenFrequencyAndScoreDictionary tokenFrequencyAndScoreDictionary = ProjectionTools.ProjectPrimaryTermsToScores(projectionPairs, drmContext, logger);
WeightDictionary wt = tokenFrequencyAndScoreDictionary.ConstructWeightDictionary();
wt.name = setup.OutputFilename;
wt.description = "Projected PrimaryView to ScoreTable - WeightTable, constructed from [" + projectionPairs.Count + "] render pairs. Document ranking: " + drmContext.description;
wt.Save(fold_notes.folder, logger, setup.OutputFilename);
// wt.saveObjectToXML(p_m);
}
Close();
return(output);
}
/// <summary>
/// Transforms to fv dictionary.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="TermWeightModel">The term weight model.</param>
/// <param name="function">The function.</param>
/// <returns></returns>
public static FeatureVectorSetDictionary TransformToFVDictionaryAsPageSimilarity(this DocumentSelectResult context, FeatureWeightModel TermWeightModel, IVectorSimilarityFunction function, ScoreComputationModeEnum groupmode, ILogBuilder log)
{
List <string> selectedTerms = context.selectedFeatures.GetKeys();
Dictionary <String, WeightDictionary> documentDictionarties = new Dictionary <string, WeightDictionary>();
foreach (var entry in context.items)
{
WeightDictionary documentWeights = TermWeightModel.GetWeights(selectedTerms, entry.spaceDocument, context.spaceModel);
documentDictionarties.Add(entry.AssignedID, documentWeights);
}
FeatureVectorSetDictionary dict = new FeatureVectorSetDictionary();
Double total = context.Count;
Int32 i = 0;
Int32 p = (context.Count / 10);
Dictionary <string, List <DocumentSelectResultEntry> > relative_groups = null;
if (groupmode == ScoreComputationModeEnum.category)
{
Dictionary <string, List <string> > assignIDByLabel = context.spaceModel.LabelToDocumentLinks.GetAllRelationShipByName(true);
relative_groups = context.GetByAssignIDCategory(assignIDByLabel, log);
if (assignIDByLabel.ContainsKey(SpaceLabel.UNKNOWN))
{
assignIDByLabel.Remove(SpaceLabel.UNKNOWN);
}
log.log("... Page Similarity ... Groups by category");
}
else if (groupmode == ScoreComputationModeEnum.site)
{
relative_groups = context.GetByDomain(log);
log.log("... Page Similarity ... Groups by site");
}
else if (groupmode == ScoreComputationModeEnum.dataset)
{
relative_groups = new Dictionary <string, List <DocumentSelectResultEntry> >();
relative_groups.Add("dataset", context.items);
log.log("... Page Similarity ... dataset");
}
ConcurrentDictionary <String, Double> computedPairs = new ConcurrentDictionary <string, double>();
foreach (var domainPair in relative_groups)
{
List <DocumentSelectResultEntry> relatives = domainPair.Value; //relative_groups[domainPair.Key].ToList();
foreach (var entry in relatives)
{
i++;
FeatureVector fv = new FeatureVector(entry.AssignedID);
// List<Double> d = new List<>();
fv.dimensions = new double[relatives.Count - 1];
// List<String> keys = documentDictionarties.Keys.ToList();
Int32 hostInd = relatives.IndexOf(entry);
Int32 c = 0;
//foreach (var pair in documentDictionarties)
//{
Parallel.ForEach(relatives, (pair) =>
{
Int32 ind = relatives.IndexOf(pair); // keys.IndexOf(pair.AssignedID);
if (ind >= hostInd)
{
ind = ind - 1;
}
if (pair.AssignedID != entry.AssignedID)
{
Double docToClassSimilarity = 0;
if (computedPairs.ContainsKey(entry.AssignedID + pair.AssignedID))
{
docToClassSimilarity = computedPairs[entry.AssignedID + pair.AssignedID];
}
else if (computedPairs.ContainsKey(pair.AssignedID + entry.AssignedID))
{
docToClassSimilarity = computedPairs[pair.AssignedID + entry.AssignedID];
}
else
{
var vecA = documentDictionarties[pair.AssignedID];
var vecB = documentDictionarties[entry.AssignedID];
docToClassSimilarity = function.ComputeSimilarity(vecA, vecB);
if (docToClassSimilarity > 0)
{
}
if (!computedPairs.ContainsKey(entry.AssignedID + pair.AssignedID))
{
computedPairs.GetOrAdd(entry.AssignedID + pair.AssignedID, docToClassSimilarity);
//computedPairs.AddOrUpdate(entry.AssignedID + pair.Key, docToClassSimilarity);
}
else if (!computedPairs.ContainsKey(pair.AssignedID + entry.AssignedID))
{
computedPairs.GetOrAdd(pair.AssignedID + entry.AssignedID, docToClassSimilarity);
}
}
fv.dimensions[ind] = docToClassSimilarity;
}
});
Int32 r = i % p;
if (r == 0)
{
log.Append(" [" + i.GetRatio(context.Count).ToString("P2") + "] ");
}
dict.GetOrAdd(domainPair.Key).Add(fv, -1);
}
}
log.log("... Preparation finished ...");
return(dict);
}