Impala Documentation

void Impala::Application::CheckQuids	(	Feature::FeatureTable *	f,
		RawDataSet *	set,
		RawDataSet *	set2,
		String	resultname,
		int	part,
		int	partcount
	)

This function does two things:

store the quid table of the part of the matrix processed by this node
- so the whole table in case of single process
if there are more than one feature table, check that the quids are consistent.

Definition at line 216 of file mainPrecomputeKernelMatrix.cpp.

References Impala::Core::Training::Equals(), Impala::Core::Feature::FeatureTable::GetQuidTable(), ILOG_ERROR, ILOG_VAR, Impala::MakeString(), Impala::Core::Table::Read(), and Impala::Core::Table::Write().

Referenced by ComputeMatrix().

00218 {
00219     ILOG_VAR(Application.mainPrecomputeKernelMatrix.CheckQuids);
00220     bool equal = true;
00221     bool fileExists = true;
00222 
00223     String basename = resultname + MakeString(part) + "of" + 
00224                       MakeString(partcount) + ".quids";
00225     String filename;
00226     if (set2)
00227     {
00228         // try to open for reading
00229         filename = set2->GetFilePathPrecomputedKernels
00230             (basename, set->GetSetName(), false, true);
00231         if (filename.empty())
00232         {
00233             fileExists = false;
00234             filename = set2->GetFilePathPrecomputedKernels
00235                 (basename, set->GetSetName(), true, false);
00236         }
00237     }
00238     else
00239     {
00240         // try to open for reading
00241         filename = set->GetFilePathPrecomputedKernels(basename, "", false,
00242                                                       true);
00243         if (filename.empty())
00244         {
00245             fileExists = false;
00246             filename = set->GetFilePathPrecomputedKernels(basename, "", true,
00247                                                           false);
00248         }
00249     }
00250     Table::QuidTable* quids = f->GetQuidTable();
00251     Table::QuidTable* prevquids = new Table::QuidTable;
00252     if (fileExists)
00253     {
00254         Read(prevquids, filename, set->GetDatabase());
00255         equal = Equals(quids, prevquids);
00256     }
00257     else //we could not read so we try to write
00258     {
00259         if (!Write(quids, filename, set->GetDatabase(), true))
00260             ILOG_ERROR("could neither read nor write " << filename);
00261     }
00262     delete prevquids;
00263     delete quids;
00264     if(!equal)
00265     {
00266         ILOG_ERROR("the input tables do not have the same Quids");
00267         exit(0);
00268     }
00269 }

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