[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-09-04 UTC."],[],[],null,["# Google Cloud Ai Platform V1 Client - Class ObservationNoise (1.35.0)\n\nVersion latestkeyboard_arrow_down\n\n- [1.35.0 (latest)](/php/docs/reference/cloud-ai-platform/latest/V1.StudySpec.ObservationNoise)\n- [1.34.0](/php/docs/reference/cloud-ai-platform/1.34.0/V1.StudySpec.ObservationNoise)\n- [1.33.0](/php/docs/reference/cloud-ai-platform/1.33.0/V1.StudySpec.ObservationNoise)\n- [1.32.1](/php/docs/reference/cloud-ai-platform/1.32.1/V1.StudySpec.ObservationNoise)\n- [1.31.0](/php/docs/reference/cloud-ai-platform/1.31.0/V1.StudySpec.ObservationNoise)\n- [1.30.0](/php/docs/reference/cloud-ai-platform/1.30.0/V1.StudySpec.ObservationNoise)\n- [1.26.0](/php/docs/reference/cloud-ai-platform/1.26.0/V1.StudySpec.ObservationNoise)\n- [1.23.0](/php/docs/reference/cloud-ai-platform/1.23.0/V1.StudySpec.ObservationNoise)\n- [1.22.0](/php/docs/reference/cloud-ai-platform/1.22.0/V1.StudySpec.ObservationNoise)\n- [1.21.0](/php/docs/reference/cloud-ai-platform/1.21.0/V1.StudySpec.ObservationNoise)\n- [1.20.0](/php/docs/reference/cloud-ai-platform/1.20.0/V1.StudySpec.ObservationNoise)\n- [1.19.0](/php/docs/reference/cloud-ai-platform/1.19.0/V1.StudySpec.ObservationNoise)\n- [1.18.0](/php/docs/reference/cloud-ai-platform/1.18.0/V1.StudySpec.ObservationNoise)\n- [1.17.0](/php/docs/reference/cloud-ai-platform/1.17.0/V1.StudySpec.ObservationNoise)\n- [1.16.0](/php/docs/reference/cloud-ai-platform/1.16.0/V1.StudySpec.ObservationNoise)\n- [1.15.0](/php/docs/reference/cloud-ai-platform/1.15.0/V1.StudySpec.ObservationNoise)\n- [1.14.0](/php/docs/reference/cloud-ai-platform/1.14.0/V1.StudySpec.ObservationNoise)\n- [1.13.1](/php/docs/reference/cloud-ai-platform/1.13.1/V1.StudySpec.ObservationNoise)\n- [1.12.0](/php/docs/reference/cloud-ai-platform/1.12.0/V1.StudySpec.ObservationNoise)\n- [1.11.0](/php/docs/reference/cloud-ai-platform/1.11.0/V1.StudySpec.ObservationNoise)\n- [1.10.0](/php/docs/reference/cloud-ai-platform/1.10.0/V1.StudySpec.ObservationNoise)\n- [1.9.0](/php/docs/reference/cloud-ai-platform/1.9.0/V1.StudySpec.ObservationNoise)\n- [1.8.0](/php/docs/reference/cloud-ai-platform/1.8.0/V1.StudySpec.ObservationNoise)\n- [1.7.0](/php/docs/reference/cloud-ai-platform/1.7.0/V1.StudySpec.ObservationNoise)\n- [1.6.0](/php/docs/reference/cloud-ai-platform/1.6.0/V1.StudySpec.ObservationNoise)\n- [1.5.0](/php/docs/reference/cloud-ai-platform/1.5.0/V1.StudySpec.ObservationNoise)\n- [1.4.0](/php/docs/reference/cloud-ai-platform/1.4.0/V1.StudySpec.ObservationNoise)\n- [1.3.0](/php/docs/reference/cloud-ai-platform/1.3.0/V1.StudySpec.ObservationNoise)\n- [1.2.0](/php/docs/reference/cloud-ai-platform/1.2.0/V1.StudySpec.ObservationNoise)\n- [1.1.0](/php/docs/reference/cloud-ai-platform/1.1.0/V1.StudySpec.ObservationNoise)\n- [1.0.0](/php/docs/reference/cloud-ai-platform/1.0.0/V1.StudySpec.ObservationNoise)\n- [0.39.0](/php/docs/reference/cloud-ai-platform/0.39.0/V1.StudySpec.ObservationNoise)\n- [0.38.0](/php/docs/reference/cloud-ai-platform/0.38.0/V1.StudySpec.ObservationNoise)\n- [0.37.1](/php/docs/reference/cloud-ai-platform/0.37.1/V1.StudySpec.ObservationNoise)\n- [0.32.0](/php/docs/reference/cloud-ai-platform/0.32.0/V1.StudySpec.ObservationNoise)\n- [0.31.0](/php/docs/reference/cloud-ai-platform/0.31.0/V1.StudySpec.ObservationNoise)\n- [0.30.0](/php/docs/reference/cloud-ai-platform/0.30.0/V1.StudySpec.ObservationNoise)\n- [0.29.0](/php/docs/reference/cloud-ai-platform/0.29.0/V1.StudySpec.ObservationNoise)\n- [0.28.0](/php/docs/reference/cloud-ai-platform/0.28.0/V1.StudySpec.ObservationNoise)\n- [0.27.0](/php/docs/reference/cloud-ai-platform/0.27.0/V1.StudySpec.ObservationNoise)\n- [0.26.2](/php/docs/reference/cloud-ai-platform/0.26.2/V1.StudySpec.ObservationNoise)\n- [0.25.0](/php/docs/reference/cloud-ai-platform/0.25.0/V1.StudySpec.ObservationNoise)\n- [0.24.0](/php/docs/reference/cloud-ai-platform/0.24.0/V1.StudySpec.ObservationNoise)\n- [0.23.0](/php/docs/reference/cloud-ai-platform/0.23.0/V1.StudySpec.ObservationNoise)\n- [0.22.0](/php/docs/reference/cloud-ai-platform/0.22.0/V1.StudySpec.ObservationNoise)\n- [0.21.0](/php/docs/reference/cloud-ai-platform/0.21.0/V1.StudySpec.ObservationNoise)\n- [0.20.0](/php/docs/reference/cloud-ai-platform/0.20.0/V1.StudySpec.ObservationNoise)\n- [0.19.0](/php/docs/reference/cloud-ai-platform/0.19.0/V1.StudySpec.ObservationNoise)\n- [0.18.0](/php/docs/reference/cloud-ai-platform/0.18.0/V1.StudySpec.ObservationNoise)\n- [0.17.0](/php/docs/reference/cloud-ai-platform/0.17.0/V1.StudySpec.ObservationNoise)\n- [0.16.0](/php/docs/reference/cloud-ai-platform/0.16.0/V1.StudySpec.ObservationNoise)\n- [0.15.0](/php/docs/reference/cloud-ai-platform/0.15.0/V1.StudySpec.ObservationNoise)\n- [0.13.0](/php/docs/reference/cloud-ai-platform/0.13.0/V1.StudySpec.ObservationNoise)\n- [0.12.0](/php/docs/reference/cloud-ai-platform/0.12.0/V1.StudySpec.ObservationNoise)\n- [0.11.1](/php/docs/reference/cloud-ai-platform/0.11.1/V1.StudySpec.ObservationNoise)\n- [0.10.0](/php/docs/reference/cloud-ai-platform/0.10.0/V1.StudySpec.ObservationNoise) \nReference documentation and code samples for the Google Cloud Ai Platform V1 Client class ObservationNoise.\n\nDescribes the noise level of the repeated observations.\n\n\"Noisy\" means that the repeated observations with the same Trial parameters\nmay lead to different metric evaluations.\n\nProtobuf type `google.cloud.aiplatform.v1.StudySpec.ObservationNoise`\n\nNamespace\n---------\n\nGoogle \\\\ Cloud \\\\ AIPlatform \\\\ V1 \\\\ StudySpec\n\nMethods\n-------\n\n### static::name\n\n### static::value\n\nConstants\n---------\n\n### OBSERVATION_NOISE_UNSPECIFIED\n\n Value: 0\n\nThe default noise level chosen by Vertex AI.\n\nGenerated from protobuf enum `OBSERVATION_NOISE_UNSPECIFIED = 0;`\n\n### LOW\n\n Value: 1\n\nVertex AI assumes that the objective function is (nearly)\nperfectly reproducible, and will never repeat the same Trial\nparameters.\n\nGenerated from protobuf enum `LOW = 1;`\n\n### HIGH\n\n Value: 2\n\nVertex AI will estimate the amount of noise in metric\nevaluations, it may repeat the same Trial parameters more than once.\n\nGenerated from protobuf enum `HIGH = 2;`"]]