/// <summary>
/// Cluster data retrieved from a search engine or some other source registered in the
/// DCS as a document source.
/// </summary>
private static void ClusterFromSearchEngine(MultipartFileUpload service, string sourceId, string query)
{
// The output format is XML.
service.AddFormValue("dcs.output.format", "XML");
// This time we will be interested in both clusters and documents.
service.AddFormValue("dcs.clusters.only", "false");
// Add query.
service.AddFormValue("query", query);
// Add the number of results.
service.AddFormValue("results", "20");
// Specify the source.
service.AddFormValue("dcs.source", sourceId);
// Perform the actual query.
byte[] response = service.Post();
// Parse the output and dump group headers.
MemoryStream input = new MemoryStream(response);
XmlDocument document = new XmlDocument();
document.PreserveWhitespace = true;
document.Load(input);
PrintResults(document);
}
/// <summary>
/// An example of clustering data from an arbitrary byte stream holding input XML for
/// the DCS (can be an in-memory stream if clustering from a string).
/// </summary>
private static void ClusterFromStream(MultipartFileUpload service, Stream xmlStream, string queryHint)
{
// The output format is XML.
service.AddFormValue("dcs.output.format", "XML");
// We don't need documents in the output, only clusters.
service.AddFormValue("dcs.clusters.only", "true");
// Pass query hint.
service.AddFormValue("query", queryHint);
// The algorithm to use for clustering. Omit to select the default. An example of
// using Lingo with custom parameters follows.
service.AddFormValue("dcs.algorithm", "lingo");
service.AddFormValue("LingoClusteringAlgorithm.desiredClusterCountBase", "10");
service.AddFormValue("LingoClusteringAlgorithm.factorizationQuality", "LOW");
service.AddFormValue("LingoClusteringAlgorithm.factorizationFactory",
"org.carrot2.matrix.factorization.PartialSingularValueDecompositionFactory");
// Add the XML stream here.
service.AddFormStream("dcs.c2stream", "anything.xml", xmlStream);
// Perform the actual query.
byte[] response = service.Post();
// Parse the output and dump group headers.
MemoryStream input = new MemoryStream(response);
XmlDocument document = new XmlDocument();
document.PreserveWhitespace = true;
document.Load(input);
PrintResults(document);
}
/// <summary>
/// An example of clustering data from an arbitrary byte stream holding input XML for
/// the DCS (can be an in-memory stream if clustering from a string).
/// </summary>
private static void ClusterFromStream(MultipartFileUpload service, Stream xmlStream, string queryHint)
{
// The output format is XML.
service.AddFormValue("dcs.output.format", "XML");
// We don't need documents in the output, only clusters.
service.AddFormValue("dcs.clusters.only", "true");
// Pass query hint.
service.AddFormValue("query", queryHint);
// The algorithm to use for clustering. Omit to select the default. An example of
// using Lingo with custom parameters follows.
service.AddFormValue("dcs.algorithm", "lingo");
service.AddFormValue("LingoClusteringAlgorithm.desiredClusterCountBase", "10");
service.AddFormValue("LingoClusteringAlgorithm.factorizationQuality", "LOW");
service.AddFormValue("LingoClusteringAlgorithm.factorizationFactory",
"org.carrot2.matrix.factorization.PartialSingularValueDecompositionFactory");
// Add the XML stream here.
service.AddFormStream("dcs.c2stream", "anything.xml", xmlStream);
// Perform the actual query.
byte[] response = service.Post();
// Parse the output and dump group headers.
MemoryStream input = new MemoryStream(response);
XmlDocument document = new XmlDocument();
document.PreserveWhitespace = true;
document.Load(input);
PrintResults(document);
}
/// <summary>
/// Cluster data retrieved from a search engine or some other source registered in the
/// DCS as a document source.
/// </summary>
private static void ClusterFromSearchEngine(MultipartFileUpload service, string sourceId, string query)
{
// The output format is XML.
service.AddFormValue("dcs.output.format", "XML");
// This time we will be interested in both clusters and documents.
service.AddFormValue("dcs.clusters.only", "false");
// Add query.
service.AddFormValue("query", query);
// Add the number of results.
service.AddFormValue("results", "20");
// Specify the source.
service.AddFormValue("dcs.source", sourceId);
// Perform the actual query.
byte[] response = service.Post();
// Parse the output and dump group headers.
MemoryStream input = new MemoryStream(response);
XmlDocument document = new XmlDocument();
document.PreserveWhitespace = true;
document.Load(input);
PrintResults(document);
}