{ "question": "is the L60 collapse lost information or a readout that lost reach", "method": "PCA-128 per modality on train images, ridge map image->caption", "test_note": "held-out images, same splits and metric as the head-free sweep", "results": { "L4": { "raw_macro": 0.5266, "fitted_macro": 0.5071, "raw": { "add_att": 0.5915, "add_obj": 0.5767, "replace_att": 0.5575, "replace_obj": 0.521, "replace_rel": 0.4992, "swap_att": 0.5236, "swap_obj": 0.4167 }, "fitted": { "add_att": 0.5246, "add_obj": 0.5093, "replace_att": 0.4808, "replace_obj": 0.4775, "replace_rel": 0.4975, "swap_att": 0.5079, "swap_obj": 0.5521 } }, "L12": { "raw_macro": 0.5153, "fitted_macro": 0.5016, "raw": { "add_att": 0.5528, "add_obj": 0.5593, "replace_att": 0.528, "replace_obj": 0.5341, "replace_rel": 0.4877, "swap_att": 0.4764, "swap_obj": 0.4688 }, "fitted": { "add_att": 0.507, "add_obj": 0.5419, "replace_att": 0.5192, "replace_obj": 0.508, "replace_rel": 0.5237, "swap_att": 0.4843, "swap_obj": 0.4271 } }, "L20": { "raw_macro": 0.5486, "fitted_macro": 0.5008, "raw": { "add_att": 0.507, "add_obj": 0.6209, "replace_att": 0.5457, "replace_obj": 0.5893, "replace_rel": 0.6007, "swap_att": 0.5394, "swap_obj": 0.4375 }, "fitted": { "add_att": 0.4789, "add_obj": 0.564, "replace_att": 0.4926, "replace_obj": 0.5196, "replace_rel": 0.5548, "swap_att": 0.5, "swap_obj": 0.3958 } }, "L28": { "raw_macro": 0.5365, "fitted_macro": 0.5301, "raw": { "add_att": 0.5, "add_obj": 0.564, "replace_att": 0.5546, "replace_obj": 0.537, "replace_rel": 0.5777, "swap_att": 0.5118, "swap_obj": 0.5104 }, "fitted": { "add_att": 0.5704, "add_obj": 0.5663, "replace_att": 0.5398, "replace_obj": 0.4862, "replace_rel": 0.5336, "swap_att": 0.5039, "swap_obj": 0.5104 } }, "L36": { "raw_macro": 0.5366, "fitted_macro": 0.5389, "raw": { "add_att": 0.4472, "add_obj": 0.5826, "replace_att": 0.5251, "replace_obj": 0.5733, "replace_rel": 0.6072, "swap_att": 0.4685, "swap_obj": 0.5521 }, "fitted": { "add_att": 0.5282, "add_obj": 0.593, "replace_att": 0.5192, "replace_obj": 0.5065, "replace_rel": 0.5745, "swap_att": 0.5197, "swap_obj": 0.5312 } }, "L44": { "raw_macro": 0.5589, "fitted_macro": 0.5267, "raw": { "add_att": 0.5141, "add_obj": 0.5488, "replace_att": 0.5693, "replace_obj": 0.6386, "replace_rel": 0.6007, "swap_att": 0.5512, "swap_obj": 0.4896 }, "fitted": { "add_att": 0.5176, "add_obj": 0.5116, "replace_att": 0.5575, "replace_obj": 0.5443, "replace_rel": 0.5532, "swap_att": 0.4921, "swap_obj": 0.5104 } }, "L47": { "raw_macro": 0.5655, "fitted_macro": 0.5222, "raw": { "add_att": 0.5246, "add_obj": 0.5581, "replace_att": 0.5782, "replace_obj": 0.6386, "replace_rel": 0.6039, "swap_att": 0.5551, "swap_obj": 0.5 }, "fitted": { "add_att": 0.507, "add_obj": 0.5186, "replace_att": 0.5398, "replace_obj": 0.5457, "replace_rel": 0.5614, "swap_att": 0.4724, "swap_obj": 0.5104 } }, "L54": { "raw_macro": 0.5841, "fitted_macro": 0.5309, "raw": { "add_att": 0.5915, "add_obj": 0.5477, "replace_att": 0.6077, "replace_obj": 0.6865, "replace_rel": 0.6072, "swap_att": 0.5276, "swap_obj": 0.5208 }, "fitted": { "add_att": 0.5352, "add_obj": 0.5163, "replace_att": 0.5398, "replace_obj": 0.5922, "replace_rel": 0.5565, "swap_att": 0.4764, "swap_obj": 0.5 } }, "L60": { "raw_macro": 0.51, "fitted_macro": 0.5094, "raw": { "add_att": 0.493, "add_obj": 0.4593, "replace_att": 0.5192, "replace_obj": 0.521, "replace_rel": 0.5041, "swap_att": 0.563, "swap_obj": 0.5104 }, "fitted": { "add_att": 0.507, "add_obj": 0.5163, "replace_att": 0.4926, "replace_obj": 0.4761, "replace_rel": 0.5057, "swap_att": 0.5157, "swap_obj": 0.5521 } } }, "verdict": "INCONCLUSIVE: the fitted arm fails its own control", "control": { "requirement": "the fitted readout must at least match head-free centred cosine at L47", "l47_head_free": 0.5655, "l47_fitted_by_K": { "32": 0.496, "64": 0.5108, "128": 0.5222, "256": 0.5318, "512": 0.5391 }, "note": "best ridge per K was chosen on the test split, so even these are generous, and every one of them still loses to the un-fitted arm. 936 training images is too few to fit a cross-modal map at 5376 dims, so this cannot decide discarded against re-based at L60." }, "n_train_images": 936, "n_images": 1560 }