public StudySpec.Types.ObservationNoise ObservationNoise { get; set; }
The observation noise level of the study.
Currently only supported by the Vertex AI Vizier service. Not supported by
HyperparameterTuningJob or TrainingPipeline.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["\u003cp\u003e\u003ccode\u003eStudySpec\u003c/code\u003e is a class in the Vertex AI v1beta1 API that represents the specification of a Study, with the latest version being 1.0.0-beta21.\u003c/p\u003e\n"],["\u003cp\u003eThis class inherits from \u003ccode\u003eobject\u003c/code\u003e and implements interfaces such as \u003ccode\u003eIMessage\u003c/code\u003e, \u003ccode\u003eIEquatable\u003c/code\u003e, \u003ccode\u003eIDeepCloneable\u003c/code\u003e, and \u003ccode\u003eIBufferMessage\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eStudySpec\u003c/code\u003e class has properties like \u003ccode\u003eAlgorithm\u003c/code\u003e, \u003ccode\u003eMetrics\u003c/code\u003e, \u003ccode\u003eParameters\u003c/code\u003e, \u003ccode\u003eObservationNoise\u003c/code\u003e, and various automated stopping specifications, allowing for detailed configuration of a Study.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eStudySpec\u003c/code\u003e class contains information relating to the configuration of automated stopping, specifying the use of the convex stopping rule, the decay curve rule, and the median rule.\u003c/p\u003e\n"],["\u003cp\u003eThis class supports the configuration of a study, including the specification of search algorithms, metrics, parameters to tune, the observation noise level, and conditions for automated stopping, and it is used with the Vertex AI Vizier service.\u003c/p\u003e\n"]]],[],null,["# Vertex AI v1beta1 API - Class StudySpec (1.0.0-beta47)\n\nVersion latestkeyboard_arrow_down\n\n- [1.0.0-beta47 (latest)](/dotnet/docs/reference/Google.Cloud.AIPlatform.V1Beta1/latest/Google.Cloud.AIPlatform.V1Beta1.StudySpec)\n- [1.0.0-beta46](/dotnet/docs/reference/Google.Cloud.AIPlatform.V1Beta1/1.0.0-beta46/Google.Cloud.AIPlatform.V1Beta1.StudySpec) \n\n public sealed class StudySpec : IMessage\u003cStudySpec\u003e, IEquatable\u003cStudySpec\u003e, IDeepCloneable\u003cStudySpec\u003e, IBufferMessage, IMessage\n\nReference documentation and code samples for the Vertex AI v1beta1 API class StudySpec.\n\nRepresents specification of a Study. \n\nInheritance\n-----------\n\n[object](https://learn.microsoft.com/dotnet/api/system.object) \\\u003e StudySpec \n\nImplements\n----------\n\n[IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage-1.html)[StudySpec](/dotnet/docs/reference/Google.Cloud.AIPlatform.V1Beta1/latest/Google.Cloud.AIPlatform.V1Beta1.StudySpec), [IEquatable](https://learn.microsoft.com/dotnet/api/system.iequatable-1)[StudySpec](/dotnet/docs/reference/Google.Cloud.AIPlatform.V1Beta1/latest/Google.Cloud.AIPlatform.V1Beta1.StudySpec), [IDeepCloneable](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IDeepCloneable-1.html)[StudySpec](/dotnet/docs/reference/Google.Cloud.AIPlatform.V1Beta1/latest/Google.Cloud.AIPlatform.V1Beta1.StudySpec), [IBufferMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IBufferMessage.html), [IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage.html) \n\nInherited Members\n-----------------\n\n[object.GetHashCode()](https://learn.microsoft.com/dotnet/api/system.object.gethashcode) \n[object.GetType()](https://learn.microsoft.com/dotnet/api/system.object.gettype) \n[object.ToString()](https://learn.microsoft.com/dotnet/api/system.object.tostring)\n\nNamespace\n---------\n\n[Google.Cloud.AIPlatform.V1Beta1](/dotnet/docs/reference/Google.Cloud.AIPlatform.V1Beta1/latest/Google.Cloud.AIPlatform.V1Beta1)\n\nAssembly\n--------\n\nGoogle.Cloud.AIPlatform.V1Beta1.dll\n\nConstructors\n------------\n\n### StudySpec()\n\n public StudySpec()\n\n### StudySpec(StudySpec)\n\n public StudySpec(StudySpec other)\n\nProperties\n----------\n\n### Algorithm\n\n public StudySpec.Types.Algorithm Algorithm { get; set; }\n\nThe search algorithm specified for the Study.\n\n### AutomatedStoppingSpecCase\n\n public StudySpec.AutomatedStoppingSpecOneofCase AutomatedStoppingSpecCase { get; }\n\n### ConvexAutomatedStoppingSpec\n\n public StudySpec.Types.ConvexAutomatedStoppingSpec ConvexAutomatedStoppingSpec { get; set; }\n\nThe automated early stopping spec using convex stopping rule.\n\n### ConvexStopConfig\n\n [Obsolete]\n public StudySpec.Types.ConvexStopConfig ConvexStopConfig { get; set; }\n\nDeprecated.\nThe automated early stopping using convex stopping rule.\n\n### DecayCurveStoppingSpec\n\n public StudySpec.Types.DecayCurveAutomatedStoppingSpec DecayCurveStoppingSpec { get; set; }\n\nThe automated early stopping spec using decay curve rule.\n\n### MeasurementSelectionType\n\n public StudySpec.Types.MeasurementSelectionType MeasurementSelectionType { get; set; }\n\nDescribe which measurement selection type will be used\n\n### MedianAutomatedStoppingSpec\n\n public StudySpec.Types.MedianAutomatedStoppingSpec MedianAutomatedStoppingSpec { get; set; }\n\nThe automated early stopping spec using median rule.\n\n### Metrics\n\n public RepeatedField\u003cStudySpec.Types.MetricSpec\u003e Metrics { get; }\n\nRequired. Metric specs for the Study.\n\n### ObservationNoise\n\n public StudySpec.Types.ObservationNoise ObservationNoise { get; set; }\n\nThe observation noise level of the study.\nCurrently only supported by the Vertex AI Vizier service. Not supported by\nHyperparameterTuningJob or TrainingPipeline.\n\n### Parameters\n\n public RepeatedField\u003cStudySpec.Types.ParameterSpec\u003e Parameters { get; }\n\nRequired. The set of parameters to tune.\n\n### StudyStoppingConfig\n\n public StudySpec.Types.StudyStoppingConfig StudyStoppingConfig { get; set; }\n\nConditions for automated stopping of a Study. Enable automated stopping by\nconfiguring at least one condition.\n\n### TransferLearningConfig\n\n public StudySpec.Types.TransferLearningConfig TransferLearningConfig { get; set; }\n\nThe configuration info/options for transfer learning. Currently supported\nfor Vertex AI Vizier service, not HyperParameterTuningJob"]]
