{ "model_type": "betaearth-segformer", "model_name": "betaearth-segformer", "description": "BetaEarth SegFormer-B2 no FiLM (ISPRS baseline) \u2014 no timestamp needed", "architecture": { "encoder_name": "mit_b2", "fusion_dim": 256, "embed_dim": 64, "time_embed_dim": 128, "encoder_frozen": false, "has_film": false, "in_channels": { "s2_l1c": 9, "s2_l2a": 9, "s1_rtc": 2, "cop_dem": 1 } }, "training": { "dataset": "Major-TOM (62,489 grid cells)", "split": "49,991 train / 6,248 val / 6,250 test", "loss": "cosine_similarity + 0.1 * MSE", "optimizer": "AdamW", "epochs": 20, "resolution": "10m (1068x1068 px tiles)" }, "performance": { "test_cosine_similarity": 0.88, "test_lulc_accuracy": 0.869, "trainable_params": "104.8M", "total_params": "104.8M" }, "inputs": "S2 L1C+L2A (9ch), S1 RTC (2ch), COP-DEM (1ch)", "output": "(H, W, 64) float32, L2-normalised per pixel" }