meld / meld_config.json
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{
"model_type": "meld",
"architecture": "MeldV7Detector",
"version": "v8",
"backbone": "jhu-clsp/ettin-encoder-1b",
"backbone_hidden_size": 1792,
"style_rank": 48,
"n_human_anchors": 8,
"n_families": 7,
"families": [
"openai_gpt",
"anthropic_claude",
"google_gemini_gemma",
"meta_llama",
"mistral",
"qwen",
"others"
],
"n_ops": 6,
"ops": [
"generate",
"polish_formalize",
"paraphrase_rewrite",
"humanize_mimic",
"summarize",
"expand"
],
"rho": 0.25,
"tau_agg": 1.0,
"max_length": 2048,
"backbone_max_length": 8192,
"cap_tokens": 16384,
"null_reduction": "max",
"score_offsets": {
"overall": {
"fpr_0.01": 2.008819580078125,
"fpr_0.05": -0.4406634569168091,
"fpr_0.1": -1.7987771034240723
},
"n_human": 22190,
"strata": {
"consumer_opinion": {
"n": 2490,
"fpr_0.01": 1.5814101696014404,
"fpr_0.05": -0.3111945688724518,
"fpr_0.1": -1.286853551864624
},
"creative": {
"n": 2500,
"fpr_0.01": 0.45580801367759705,
"fpr_0.05": -2.677462100982666,
"fpr_0.1": -3.904209613800049
},
"general_web": {
"n": 2500,
"fpr_0.01": 1.5588948726654053,
"fpr_0.05": -1.170554280281067,
"fpr_0.1": -2.748509168624878
},
"news": {
"n": 2500,
"fpr_0.01": 2.726632833480835,
"fpr_0.05": 1.2478327751159668,
"fpr_0.1": 0.1839705854654312
},
"peer_review": {
"n": 2500,
"fpr_0.01": -4.437159061431885,
"fpr_0.05": -5.963565826416016,
"fpr_0.1": -6.306556701660156
},
"reference_howto": {
"n": 2500,
"fpr_0.01": -1.06562077999115,
"fpr_0.05": -3.6017556190490723,
"fpr_0.1": -4.638963222503662
},
"scientific_paper": {
"n": 2500,
"fpr_0.01": 2.3307437896728516,
"fpr_0.05": 0.10951182246208191,
"fpr_0.1": -1.107822299003601
},
"social_qa_chat": {
"n": 2490,
"fpr_0.01": 2.3400607109069824,
"fpr_0.05": -0.013203833252191544,
"fpr_0.1": -0.9907770752906799
},
"student_essay": {
"n": 2210,
"fpr_0.01": 3.0058677196502686,
"fpr_0.05": 0.2508733570575714,
"fpr_0.1": -1.1999095678329468
}
}
},
"released_step": 15629,
"checkpoint_sha12": "2d6ec6314168",
"scoring_contract": {
"schema": "meld-canonical-scorer-v1",
"window_tokens": 2048,
"content_tokens_per_window": 2046,
"window_overlap": "none",
"fresh_special_tokens_per_window": true,
"special_tokens_excluded": true,
"precision": "fp32",
"autocast": "disabled",
"input_cap_tokens": 16384,
"pooling": "top_quantile_mean_over_all_windows_jointly",
"rho": 0.25
}
}