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diff --git a/casa/covering/filter/CoveringArrayAnnealingFilter.H b/casa/covering/filter/CoveringArrayAnnealingFilter.H
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+// Copyright 2008, 2009 Brady J. Garvin
+
+// This file is part of Covering Arrays by Simulated Annealing (CASA).
+
+// CASA is free software: you can redistribute it and/or modify it
+// under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// CASA is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with CASA.  If not, see <http://www.gnu.org/licenses/>.
+
+
+#ifndef COVERING_ARRAY_ANNEALING_FILTER_H
+#define COVERING_ARRAY_ANNEALING_FILTER_H
+
+#include "annealing/AnnealingFilter.H"
+
+#include "covering/state/CoveringArray.H"
+#include "covering/cost/CoverageCost.H"
+
+#ifndef MULTIPLE_COVERAGE_WEIGHT
+#define MULTIPLE_COVERAGE_WEIGHT 0.1L
+#endif
+
+class CoveringArrayAnnealingFilter :
+  public AnnealingFilter<CoveringArray, CoverageCost> {
+public:
+  CoveringArrayAnnealingFilter(double temperature, double decay) :
+    AnnealingFilter<CoveringArray, CoverageCost>(temperature, decay) {}
+
+  double convertToDelta(CoverageCost childEstimate, CoverageCost parentEstimate)
+    const {
+    unsigned childNoncoverage = childEstimate.getNoncoverage();
+    unsigned parentNoncoverage = parentEstimate.getNoncoverage();
+    unsigned childMultipleCoverage = childEstimate.getMultipleCoverage();
+    unsigned parentMultipleCoverage = parentEstimate.getMultipleCoverage();
+    return -(double)(childNoncoverage - parentNoncoverage) -
+      MULTIPLE_COVERAGE_WEIGHT *
+        (childMultipleCoverage - parentMultipleCoverage);
+  }
+};
+
+#endif