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-rw-r--r--utils/lbfgs.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/utils/lbfgs.h b/utils/lbfgs.h
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+++ b/utils/lbfgs.h
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+#ifndef _LBFGS_H_
+#define _LBFGS_H_
+
+#include <vector>
+
+// template<class FuncGrad>
+// std::vector<double>
+// perform_LBFGS(FuncGrad func_grad, const std::vector<double> & x0);
+
+std::vector<double> perform_LBFGS(
+ double (*func_grad)(const std::vector<double> &, std::vector<double> &),
+ const std::vector<double> &x0);
+
+std::vector<double> perform_OWLQN(
+ double (*func_grad)(const std::vector<double> &, std::vector<double> &),
+ const std::vector<double> &x0, const double C);
+
+const int LBFGS_M = 10;
+
+#endif