{"collection":"grad-noise-175k","coord":"t19_x13_u5_b20","data":{"index":148283,"ordinal":"154817657","topo":"o2(x,o2(o1(x),x))","expression":"sub(D,dot(sgn(D),D))","image":"frame_expr-148283.png","measured":true,"step":66271,"globalStep":66271,"value_mean":-0.5712844729423523,"value_positive_fraction":0,"value_abs_mean":0.5712844729423523,"value_variance":0.06235690414905548,"value_stddev":0.24971364438533783,"value_min":-1,"value_max":-0.03208676725625992,"value_range":0.9679132103919983,"histogram_probability_sum":1,"histogram_entropy_bits":3.8732750415802,"gradient_energy_x":0.005765403155237436,"gradient_energy_y":0.004118758253753185,"gradient_magnitude_mean":0.09438089281320572,"gradient_axis_bias":0.16659429669380188,"gradient_nonzero_flag":1,"laplacian_mean":0.0012250455329194665,"laplacian_energy":0.0019411977846175432,"laplacian_abs_mean":0.0354139506816864,"gradient_magnitude_variance":0.0009779352694749832,"gradient_magnitude_stddev":0.031271956861019135,"gradient_magnitude_cv":0.3313377797603607,"gradient_magnitude_max":0.1491108387708664,"gradient_energy_over_variance":0.1585095077753067,"laplacian_energy_over_variance":0.031130438670516014,"variance_normalization_valid_flag":1,"gradient_cv_valid_flag":1,"scale_diff2_near":0.018878979608416557,"scale_diff2_mid":0.12283743917942047,"scale_diff2_far":0,"scale_diff2_near_over_variance":0.3027568459510803,"scale_diff2_mid_over_variance":1.9699091911315918,"scale_diff2_far_over_variance":0,"value_histogram":[[[0.09375,0.09375,0.09375],[0.046875,0.046875,0.046875],[0.046875,0.046875,0.046875],[0.0703125,0.0703125,0.0703125],[0.078125,0.078125,0.078125],[0.0859375,0.0859375,0.0859375],[0.09375,0.09375,0.09375],[0.1015625,0.1015625,0.1015625],[0.0859375,0.0859375,0.0859375],[0.0703125,0.0703125,0.0703125],[0.0546875,0.0546875,0.0546875],[0.046875,0.046875,0.046875],[0.046875,0.046875,0.046875],[0.03125,0.03125,0.03125],[0.03125,0.03125,0.03125],[0.015625,0.015625,0.015625],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0],[0,0,0]]],"scale_curve":[[[0.015625,0.018878979608416557,0.3027568459510803],[0.0625,0.12283743917942047,1.9699091911315918],[0.25,0,0]]]},"renderer":1,"first_seen":"2026-09-23T00:00:00.000Z","last_seen":"2026-09-23T00:00:00.000Z","sightings":[{"at":"2026-09-23T00:00:00.000Z","data":null}],"axes":"[\"19\",\"13\",\"5\",\"20\"]"}