k,method,google/embeddinggemma-300m,google/embeddinggemma-300m (retention %),Qwen/Qwen3-Embedding-0.6B,Qwen/Qwen3-Embedding-0.6B (retention %),google/gemma-3-1b-pt (mean_pooling),google/gemma-3-1b-pt (mean_pooling) (retention %),google/gemma-3-1b-pt (last_token_pooling),google/gemma-3-1b-pt (last_token_pooling) (retention %),Qwen/Qwen3.5-0.8B-Base (mean_pooling),Qwen/Qwen3.5-0.8B-Base (mean_pooling) (retention %),Qwen/Qwen3.5-0.8B-Base (last_token_pooling),Qwen/Qwen3.5-0.8B-Base (last_token_pooling) (retention %),mean_dedicated_retention_pct,mean_base_mean_retention_pct,mean_base_last_retention_pct
512,prefix,0.3314,100.0864,0.3494,99.6918,0.1781,93.3408,0.0748,103.3982,0.1976,95.0899,0.0676,96.6738,99.8891,94.2154,100.036
512,pca,0.3366,101.6854,0.3407,97.2037,0.19,99.5494,0.0694,95.9727,0.1927,92.7195,0.0699,100.0086,99.4446,96.1345,97.9907
512,whitening,0.297,89.7007,0.3079,87.8575,0.2324,121.7784,0.1018,140.7067,0.2341,112.6477,0.0963,137.6748,88.7791,117.213,139.1908
512,spectemp,0.3351,101.2079,0.3409,97.2642,0.1929,101.0605,0.071,98.1295,0.1951,93.8604,0.0715,102.1836,99.236,97.4605,100.1565
512,coast,0.3314,100.0915,0.3428,97.8066,0.2332,122.1933,0.1024,141.633,0.2354,113.2723,0.097,138.6973,98.9491,117.7328,140.1651
256,prefix,0.3227,97.4582,0.3404,97.1167,0.171,89.618,0.0788,108.9476,0.1844,88.7463,0.0625,89.408,97.2875,89.1822,99.1778
256,pca,0.3329,100.5401,0.3399,96.9974,0.1853,97.1056,0.0679,93.9308,0.1918,92.2802,0.0686,98.0881,98.7687,94.6929,96.0094
256,whitening,0.3075,92.8952,0.3221,91.9207,0.2358,123.5457,0.1063,146.982,0.2359,113.4913,0.0947,135.4226,92.4079,118.5185,141.2023
256,spectemp,0.3317,100.1933,0.3408,97.2448,0.1921,100.6607,0.072,99.5078,0.1959,94.2574,0.0716,102.3752,98.7191,97.4591,100.9415
256,coast,0.3276,98.9555,0.3419,97.5427,0.2352,123.2198,0.1057,146.1179,0.2365,113.7949,0.0942,134.7047,98.2491,118.5074,140.4113
128,prefix,0.2976,89.8771,0.33,94.1577,0.1731,90.6953,0.0693,95.8096,0.1732,83.3588,0.0572,81.7775,92.0174,87.0271,88.7935
128,pca,0.3237,97.7678,0.3311,94.4807,0.1722,90.2353,0.062,85.738,0.1837,88.4085,0.064,91.5673,96.1243,89.3219,88.6526
128,whitening,0.3076,92.9187,0.3209,91.5612,0.2158,113.0694,0.097,134.0707,0.2229,107.254,0.0894,127.7835,92.24,110.1617,130.9271
128,spectemp,0.3196,96.5382,0.3328,94.955,0.1886,98.8132,0.0696,96.2313,0.1966,94.6024,0.0681,97.3345,95.7466,96.7078,96.7829
128,coast,0.3151,95.1865,0.3344,95.4241,0.2167,113.5499,0.0977,135.0675,0.2233,107.4369,0.089,127.3216,95.3053,110.4934,131.1945
64,prefix,0.2628,79.3893,0.3034,86.5744,0.1458,76.3694,0.0568,78.4839,0.1256,60.4429,0.0441,63.0888,82.9818,68.4061,70.7864
64,pca,0.3016,91.0862,0.3092,88.235,0.1514,79.3361,0.0502,69.4063,0.1685,81.0602,0.053,75.8115,89.6606,80.1981,72.6089
64,whitening,0.2791,84.3066,0.2999,85.5663,0.1805,94.5774,0.0765,105.743,0.195,93.821,0.0659,94.1842,84.9365,94.1992,99.9636
64,spectemp,0.2842,85.838,0.308,87.8852,0.1699,89.0343,0.06,82.8817,0.1883,90.6027,0.0597,85.4354,86.8616,89.8185,84.1586
64,coast,0.2921,88.2255,0.3137,89.5119,0.1798,94.2059,0.077,106.4522,0.1935,93.1295,0.0662,94.5946,88.8687,93.6677,100.5234