{
  "label": "教学等级与相似度；非商业排序测量",
  "ndcg_before": 0.5188972012643011,
  "ndcg_after": 1.0,
  "mmr_after_selecting_A": {
    "B": 0.30999999999999994,
    "C": 0.49999999999999994
  },
  "next_by_mmr": "C"
}