)]}'
{
  "commit": "bf4c1b76e4926c738fc805e9ff4be0ed584d9eee",
  "tree": "7b7b67cbd0b331590187687b2b5d4afdc977dce6",
  "parents": [
    "7124c3474cd201134c3a3350b46aca468f1edafa"
  ],
  "author": {
    "name": "Alex Stewart",
    "email": "alexs.mac@gmail.com",
    "time": "Thu Nov 14 21:27:20 2013 +0000"
  },
  "committer": {
    "name": "Alex Stewart",
    "email": "alexs.mac@gmail.com",
    "time": "Thu Nov 14 21:34:52 2013 +0000"
  },
  "message": "Decreasing threshold at which L-BFGS Hessian is updated.\n\n- Decreasing threshold at which L-BFGS Hessian is updated from 1e-10\n  to 1e-14 results in a very significant improvement in NIST scores\n  (43 -\u003e 53 for CUBIC).\n- Adding comment in FindPolynomialRoots() explaining why behaviour\n  is correct.\n\nChange-Id: If668e087e7a86d29659aa74e8528b192b604c841\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "372165f9523c70f92ef350dbe9d49253c1a0708a",
      "old_mode": 33188,
      "old_path": "internal/ceres/low_rank_inverse_hessian.cc",
      "new_id": "0bb71dc43a3cffbd059d400a1f5ef1cd1d928327",
      "new_mode": 33188,
      "new_path": "internal/ceres/low_rank_inverse_hessian.cc"
    },
    {
      "type": "modify",
      "old_id": "feec884799fd8b72227a49bd67ff289b168a45ca",
      "old_mode": 33188,
      "old_path": "internal/ceres/polynomial.cc",
      "new_id": "e548da0db0913cd73932e3d286c799e7f7c12ad0",
      "new_mode": 33188,
      "new_path": "internal/ceres/polynomial.cc"
    }
  ]
}