)]}'
{
  "commit": "54fcbf893852272ba2158d6a56572a2eb3ccc41f",
  "tree": "8b077811ee29f810e0675d86b7be75bcac195b5a",
  "parents": [
    "db98425b94c9eff9b125bf4a854545162e8c1aec"
  ],
  "author": {
    "name": "Sameer Agarwal",
    "email": "sameeragarwal@google.com",
    "time": "Tue Nov 19 10:12:05 2013 -0800"
  },
  "committer": {
    "name": "Sameer Agarwal",
    "email": "sameeragarwal@google.com",
    "time": "Tue Nov 19 10:41:27 2013 -0800"
  },
  "message": "Relax the requirements on loss functiond derivatives.\n\nWe now require that the first derivative of the loss function\nbe positive only if the second derivative is non-zero. This is\nbecause when the second derivative is non-positive, we do not use\nthe second order correction suggested by BANS and instead use\na simpler first order strategy which does not use a division by\nthe gradient of the loss function.\n\nChange-Id: I3d65713f152611998e196ff389a7081acfdfd8c1\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "955feb5ef586969d4b3f5b7990c2c4ab1771af93",
      "old_mode": 33188,
      "old_path": "internal/ceres/corrector.cc",
      "new_id": "cbf49ec42eea922cd3f0c98fae5830654fb8a9c9",
      "new_mode": 33188,
      "new_path": "internal/ceres/corrector.cc"
    }
  ]
}