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              ],
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              "label": "Erreur interpolation / r\u00e9\u00e9chantillonnage",
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                  "level": 1.0,
                  "signal": "PCA Q"
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              ],
              "interpretation": "Combinaison possible changement de sonde + splice, amplifi\u00e9e par g\u00e9om\u00e9trie, fond ou calibration.",
              "key": "vera25_like",
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                  "level": 1.0,
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                  "level": 1.0,
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              "interpretation": "M\u00e9lange de campagnes, op\u00e9rateurs, lots, setups ou sous-populations spectrales.",
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                  "level": 1.0,
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                  "level": 1.0,
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                  "level": 1.0,
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              "key": "white_calibration",
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              "interpretation": "Modification de l'illumination, collecte, angle ou distance sonde-\u00e9chantillon.",
              "key": "probe_geometry",
              "label": "Diff\u00e9rence de sonde / g\u00e9om\u00e9trie",
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              "evidence": [
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              "key": "out_of_domain",
              "label": "Spectre hors domaine valide",
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                  "level": 1.0,
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                {
                  "level": 0.5014035039545154,
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              "interpretation": "Effet syst\u00e9matique du support, blanc/noir, transflectance ou environnement de mesure.",
              "key": "background_shift",
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