From 1b8181bf0d6e9137e6b9ccdbe414aec37377a1a9 Mon Sep 17 00:00:00 2001
From: Chris Dyer <cdyer@allegro.clab.cs.cmu.edu>
Date: Sun, 18 Nov 2012 13:35:42 -0500
Subject: major restructure of the training code

---
 training/optimize.cc | 102 ---------------------------------------------------
 1 file changed, 102 deletions(-)
 delete mode 100644 training/optimize.cc

(limited to 'training/optimize.cc')

diff --git a/training/optimize.cc b/training/optimize.cc
deleted file mode 100644
index 41ac90d8..00000000
--- a/training/optimize.cc
+++ /dev/null
@@ -1,102 +0,0 @@
-#include "optimize.h"
-
-#include <iostream>
-#include <cassert>
-
-#include "lbfgs.h"
-
-using namespace std;
-
-BatchOptimizer::~BatchOptimizer() {}
-
-void BatchOptimizer::Save(ostream* out) const {
-  out->write((const char*)&eval_, sizeof(eval_));
-  out->write((const char*)&has_converged_, sizeof(has_converged_));
-  SaveImpl(out);
-  unsigned int magic = 0xABCDDCBA;  // should be uint32_t
-  out->write((const char*)&magic, sizeof(magic));
-}
-
-void BatchOptimizer::Load(istream* in) {
-  in->read((char*)&eval_, sizeof(eval_));
-  in->read((char*)&has_converged_, sizeof(has_converged_));
-  LoadImpl(in);
-  unsigned int magic = 0;           // should be uint32_t
-  in->read((char*)&magic, sizeof(magic));
-  assert(magic == 0xABCDDCBA);
-  cerr << Name() << " EVALUATION #" << eval_ << endl;
-}
-
-void BatchOptimizer::SaveImpl(ostream* out) const {
-  (void)out;
-}
-
-void BatchOptimizer::LoadImpl(istream* in) {
-  (void)in;
-}
-
-string RPropOptimizer::Name() const {
-  return "RPropOptimizer";
-}
-
-void RPropOptimizer::OptimizeImpl(const double& obj,
-                              const vector<double>& g,
-                              vector<double>* x) {
-  for (int i = 0; i < g.size(); ++i) {
-    const double g_i = g[i];
-    const double sign_i = (signbit(g_i) ? -1.0 : 1.0);
-    const double prod = g_i * prev_g_[i];
-    if (prod > 0.0) {
-      const double dij = min(delta_ij_[i] * eta_plus_, delta_max_);
-      (*x)[i] -= dij * sign_i;
-      delta_ij_[i] = dij;
-      prev_g_[i] = g_i;
-    } else if (prod < 0.0) {
-      delta_ij_[i] = max(delta_ij_[i] * eta_minus_, delta_min_);
-      prev_g_[i] = 0.0;
-    } else {
-      (*x)[i] -= delta_ij_[i] * sign_i;
-      prev_g_[i] = g_i;
-    }
-  }
-}
-
-void RPropOptimizer::SaveImpl(ostream* out) const {
-  const size_t n = prev_g_.size();
-  out->write((const char*)&n, sizeof(n));
-  out->write((const char*)&prev_g_[0], sizeof(double) * n);
-  out->write((const char*)&delta_ij_[0], sizeof(double) * n);
-}
-
-void RPropOptimizer::LoadImpl(istream* in) {
-  size_t n;
-  in->read((char*)&n, sizeof(n));
-  assert(n == prev_g_.size());
-  assert(n == delta_ij_.size());
-  in->read((char*)&prev_g_[0], sizeof(double) * n);
-  in->read((char*)&delta_ij_[0], sizeof(double) * n);
-}
-
-string LBFGSOptimizer::Name() const {
-  return "LBFGSOptimizer";
-}
-
-LBFGSOptimizer::LBFGSOptimizer(int num_feats, int memory_buffers) :
-  opt_(num_feats, memory_buffers) {}
-
-void LBFGSOptimizer::SaveImpl(ostream* out) const {
-  opt_.serialize(out);
-}
-
-void LBFGSOptimizer::LoadImpl(istream* in) {
-  opt_.deserialize(in);
-}
-
-void LBFGSOptimizer::OptimizeImpl(const double& obj,
-                                  const vector<double>& g,
-                                  vector<double>* x) {
-  opt_.run(&(*x)[0], obj, &g[0]);
-  if (!opt_.requests_f_and_g()) opt_.run(&(*x)[0], obj, &g[0]);
-  // cerr << opt_ << endl;
-}
-
-- 
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