{
  "protocol": "Vision side held fixed (DINOv2-base segments). Only the text encoder varies. All encoders are trained on text alone; no vision-language model is admissible. Priced by the anchor bound, since field correlation was shown not to govern recovery.",
  "vg_part_oracle_ceiling": 0.359,
  "rows": [
    {
      "encoder": "PPMI (incumbent)",
      "dimension": 128,
      "correlation": 0.7154847097529566,
      "anchor_bound": 0.2890625
    },
    {
      "encoder": "MiniLM-L6 (22M)",
      "dimension": 384,
      "correlation": 0.7181425459501315,
      "anchor_bound": 0.328125
    },
    {
      "encoder": "mpnet-base (110M)",
      "dimension": 768,
      "correlation": 0.725563692615733,
      "anchor_bound": 0.340625
    },
    {
      "encoder": "bert-base (110M)",
      "dimension": 768,
      "correlation": 0.7420831753105741,
      "anchor_bound": 0.340625
    },
    {
      "encoder": "BGE-large (335M)",
      "dimension": 1024,
      "correlation": 0.7283621429669194,
      "anchor_bound": 0.3078125
    },
    {
      "encoder": "Qwen2.5-0.5B",
      "dimension": 896,
      "correlation": 0.7278852227261461,
      "anchor_bound": 0.325
    },
    {
      "encoder": "Qwen2.5-1.5B",
      "dimension": 1536,
      "correlation": 0.7281876334842069,
      "anchor_bound": 0.3109375
    }
  ]
}