Query parameters

• allow_no_match boolean

  Specifies what to do when the request:

  1. Contains wildcard expressions and there are no data frame analytics jobs that match.
  2. Contains the _all string or no identifiers and there are no matches.
  3. Contains wildcard expressions and there are only partial matches.

  The default value returns an empty data_frame_analytics array when there are no matches and the subset of results when there are partial matches. If this parameter is false, the request returns a 404 status code when there are no matches or only partial matches.

• from number

  Skips the specified number of data frame analytics jobs.

• size number

  Specifies the maximum number of data frame analytics jobs to obtain.

• exclude_generated boolean

  Indicates if certain fields should be removed from the configuration on retrieval. This allows the configuration to be in an acceptable format to be retrieved and then added to another cluster.

Responses

• 200 application/json
  Hide response attributes Show response attributes object

  • count number Required
  • data_frame_analytics array[object] Required

    An array of data frame analytics job resources, which are sorted by the id value in ascending order.

    Hide data_frame_analytics attributes Show data_frame_analytics attributes object

    • allow_lazy_start boolean
    • analysis object Required
      Hide analysis attributes Show analysis attributes object

      • classification object
        Hide classification attributes Show classification attributes object

        • alpha number

          Advanced configuration option. Machine learning uses loss guided tree growing, which means that the decision trees grow where the regularized loss decreases most quickly. This parameter affects loss calculations by acting as a multiplier of the tree depth. Higher alpha values result in shallower trees and faster training times. By default, this value is calculated during hyperparameter optimization. It must be greater than or equal to zero.

        • dependent_variable string Required

          Defines which field of the document is to be predicted. It must match one of the fields in the index being used to train. If this field is missing from a document, then that document will not be used for training, but a prediction with the trained model will be generated for it. It is also known as continuous target variable. For classification analysis, the data type of the field must be numeric (integer, short, long, byte), categorical (ip or keyword), or boolean. There must be no more than 30 different values in this field. For regression analysis, the data type of the field must be numeric.

        • downsample_factor number

          Advanced configuration option. Controls the fraction of data that is used to compute the derivatives of the loss function for tree training. A small value results in the use of a small fraction of the data. If this value is set to be less than 1, accuracy typically improves. However, too small a value may result in poor convergence for the ensemble and so require more trees. By default, this value is calculated during hyperparameter optimization. It must be greater than zero and less than or equal to 1.

        • early_stopping_enabled boolean

          Advanced configuration option. Specifies whether the training process should finish if it is not finding any better performing models. If disabled, the training process can take significantly longer and the chance of finding a better performing model is unremarkable.

        • eta number

          Advanced configuration option. The shrinkage applied to the weights. Smaller values result in larger forests which have a better generalization error. However, larger forests cause slower training. By default, this value is calculated during hyperparameter optimization. It must be a value between 0.001 and 1.

        • eta_growth_rate_per_tree number

          Advanced configuration option. Specifies the rate at which eta increases for each new tree that is added to the forest. For example, a rate of 1.05 increases eta by 5% for each extra tree. By default, this value is calculated during hyperparameter optimization. It must be between 0.5 and 2.

        • feature_bag_fraction number

          Advanced configuration option. Defines the fraction of features that will be used when selecting a random bag for each candidate split. By default, this value is calculated during hyperparameter optimization.

        • feature_processors array[object]

          Advanced configuration option. A collection of feature preprocessors that modify one or more included fields. The analysis uses the resulting one or more features instead of the original document field. However, these features are ephemeral; they are not stored in the destination index. Multiple feature_processors entries can refer to the same document fields. Automatic categorical feature encoding still occurs for the fields that are unprocessed by a custom processor or that have categorical values. Use this property only if you want to override the automatic feature encoding of the specified fields.

        • gamma number

          Advanced configuration option. Regularization parameter to prevent overfitting on the training data set. Multiplies a linear penalty associated with the size of individual trees in the forest. A high gamma value causes training to prefer small trees. A small gamma value results in larger individual trees and slower training. By default, this value is calculated during hyperparameter optimization. It must be a nonnegative value.

        • lambda number

          Advanced configuration option. Regularization parameter to prevent overfitting on the training data set. Multiplies an L2 regularization term which applies to leaf weights of the individual trees in the forest. A high lambda value causes training to favor small leaf weights. This behavior makes the prediction function smoother at the expense of potentially not being able to capture relevant relationships between the features and the dependent variable. A small lambda value results in large individual trees and slower training. By default, this value is calculated during hyperparameter optimization. It must be a nonnegative value.

        • max_optimization_rounds_per_hyperparameter number

          Advanced configuration option. A multiplier responsible for determining the maximum number of hyperparameter optimization steps in the Bayesian optimization procedure. The maximum number of steps is determined based on the number of undefined hyperparameters times the maximum optimization rounds per hyperparameter. By default, this value is calculated during hyperparameter optimization.

        • max_trees number

          Advanced configuration option. Defines the maximum number of decision trees in the forest. The maximum value is 2000. By default, this value is calculated during hyperparameter optimization.

        • num_top_feature_importance_values number

          Advanced configuration option. Specifies the maximum number of feature importance values per document to return. By default, no feature importance calculation occurs.

        • prediction_field_name string

          Path to field or array of paths. Some API's support wildcards in the path to select multiple fields.

        • randomize_seed number

          Defines the seed for the random generator that is used to pick training data. By default, it is randomly generated. Set it to a specific value to use the same training data each time you start a job (assuming other related parameters such as source and analyzed_fields are the same).

        • soft_tree_depth_limit number

          Advanced configuration option. Machine learning uses loss guided tree growing, which means that the decision trees grow where the regularized loss decreases most quickly. This soft limit combines with the soft_tree_depth_tolerance to penalize trees that exceed the specified depth; the regularized loss increases quickly beyond this depth. By default, this value is calculated during hyperparameter optimization. It must be greater than or equal to 0.

        • soft_tree_depth_tolerance number

          Advanced configuration option. This option controls how quickly the regularized loss increases when the tree depth exceeds soft_tree_depth_limit. By default, this value is calculated during hyperparameter optimization. It must be greater than or equal to 0.01.

        • training_percent
        • class_assignment_objective string
        • num_top_classes number

          Defines the number of categories for which the predicted probabilities are reported. It must be non-negative or -1. If it is -1 or greater than the total number of categories, probabilities are reported for all categories; if you have a large number of categories, there could be a significant effect on the size of your destination index. NOTE: To use the AUC ROC evaluation method, num_top_classes must be set to -1 or a value greater than or equal to the total number of categories.

      • outlier_detection object
        Hide outlier_detection attributes Show outlier_detection attributes object

        • compute_feature_influence boolean

          Specifies whether the feature influence calculation is enabled.

        • feature_influence_threshold number

          The minimum outlier score that a document needs to have in order to calculate its feature influence score. Value range: 0-1.

        • method string

          The method that outlier detection uses. Available methods are lof, ldof, distance_kth_nn, distance_knn, and ensemble. The default value is ensemble, which means that outlier detection uses an ensemble of different methods and normalises and combines their individual outlier scores to obtain the overall outlier score.

        • n_neighbors number

          Defines the value for how many nearest neighbors each method of outlier detection uses to calculate its outlier score. When the value is not set, different values are used for different ensemble members. This default behavior helps improve the diversity in the ensemble; only override it if you are confident that the value you choose is appropriate for the data set.

        • outlier_fraction number

          The proportion of the data set that is assumed to be outlying prior to outlier detection. For example, 0.05 means it is assumed that 5% of values are real outliers and 95% are inliers.

        • standardization_enabled boolean

          If true, the following operation is performed on the columns before computing outlier scores: (x_i - mean(x_i)) / sd(x_i).

      • regression object
        Hide regression attributes Show regression attributes object

        • alpha number

          Advanced configuration option. Machine learning uses loss guided tree growing, which means that the decision trees grow where the regularized loss decreases most quickly. This parameter affects loss calculations by acting as a multiplier of the tree depth. Higher alpha values result in shallower trees and faster training times. By default, this value is calculated during hyperparameter optimization. It must be greater than or equal to zero.

        • dependent_variable string Required

          Defines which field of the document is to be predicted. It must match one of the fields in the index being used to train. If this field is missing from a document, then that document will not be used for training, but a prediction with the trained model will be generated for it. It is also known as continuous target variable. For classification analysis, the data type of the field must be numeric (integer, short, long, byte), categorical (ip or keyword), or boolean. There must be no more than 30 different values in this field. For regression analysis, the data type of the field must be numeric.

        • downsample_factor number

          Advanced configuration option. Controls the fraction of data that is used to compute the derivatives of the loss function for tree training. A small value results in the use of a small fraction of the data. If this value is set to be less than 1, accuracy typically improves. However, too small a value may result in poor convergence for the ensemble and so require more trees. By default, this value is calculated during hyperparameter optimization. It must be greater than zero and less than or equal to 1.

        • early_stopping_enabled boolean

          Advanced configuration option. Specifies whether the training process should finish if it is not finding any better performing models. If disabled, the training process can take significantly longer and the chance of finding a better performing model is unremarkable.

        • eta number

          Advanced configuration option. The shrinkage applied to the weights. Smaller values result in larger forests which have a better generalization error. However, larger forests cause slower training. By default, this value is calculated during hyperparameter optimization. It must be a value between 0.001 and 1.

        • eta_growth_rate_per_tree number

          Advanced configuration option. Specifies the rate at which eta increases for each new tree that is added to the forest. For example, a rate of 1.05 increases eta by 5% for each extra tree. By default, this value is calculated during hyperparameter optimization. It must be between 0.5 and 2.

        • feature_bag_fraction number

          Advanced configuration option. Defines the fraction of features that will be used when selecting a random bag for each candidate split. By default, this value is calculated during hyperparameter optimization.

        • feature_processors array[object]

          Advanced configuration option. A collection of feature preprocessors that modify one or more included fields. The analysis uses the resulting one or more features instead of the original document field. However, these features are ephemeral; they are not stored in the destination index. Multiple feature_processors entries can refer to the same document fields. Automatic categorical feature encoding still occurs for the fields that are unprocessed by a custom processor or that have categorical values. Use this property only if you want to override the automatic feature encoding of the specified fields.

        • gamma number

          Advanced configuration option. Regularization parameter to prevent overfitting on the training data set. Multiplies a linear penalty associated with the size of individual trees in the forest. A high gamma value causes training to prefer small trees. A small gamma value results in larger individual trees and slower training. By default, this value is calculated during hyperparameter optimization. It must be a nonnegative value.

        • lambda number

          Advanced configuration option. Regularization parameter to prevent overfitting on the training data set. Multiplies an L2 regularization term which applies to leaf weights of the individual trees in the forest. A high lambda value causes training to favor small leaf weights. This behavior makes the prediction function smoother at the expense of potentially not being able to capture relevant relationships between the features and the dependent variable. A small lambda value results in large individual trees and slower training. By default, this value is calculated during hyperparameter optimization. It must be a nonnegative value.

        • max_optimization_rounds_per_hyperparameter number

          Advanced configuration option. A multiplier responsible for determining the maximum number of hyperparameter optimization steps in the Bayesian optimization procedure. The maximum number of steps is determined based on the number of undefined hyperparameters times the maximum optimization rounds per hyperparameter. By default, this value is calculated during hyperparameter optimization.

        • max_trees number

          Advanced configuration option. Defines the maximum number of decision trees in the forest. The maximum value is 2000. By default, this value is calculated during hyperparameter optimization.

        • num_top_feature_importance_values number

          Advanced configuration option. Specifies the maximum number of feature importance values per document to return. By default, no feature importance calculation occurs.

        • prediction_field_name string

          Path to field or array of paths. Some API's support wildcards in the path to select multiple fields.

        • randomize_seed number

          Defines the seed for the random generator that is used to pick training data. By default, it is randomly generated. Set it to a specific value to use the same training data each time you start a job (assuming other related parameters such as source and analyzed_fields are the same).

        • soft_tree_depth_limit number

          Advanced configuration option. Machine learning uses loss guided tree growing, which means that the decision trees grow where the regularized loss decreases most quickly. This soft limit combines with the soft_tree_depth_tolerance to penalize trees that exceed the specified depth; the regularized loss increases quickly beyond this depth. By default, this value is calculated during hyperparameter optimization. It must be greater than or equal to 0.

        • soft_tree_depth_tolerance number

          Advanced configuration option. This option controls how quickly the regularized loss increases when the tree depth exceeds soft_tree_depth_limit. By default, this value is calculated during hyperparameter optimization. It must be greater than or equal to 0.01.

        • training_percent
        • loss_function string

          The loss function used during regression. Available options are mse (mean squared error), msle (mean squared logarithmic error), huber (Pseudo-Huber loss).

        • loss_function_parameter number

          A positive number that is used as a parameter to the loss_function.

    • analyzed_fields object
      Hide analyzed_fields attributes Show analyzed_fields attributes object

      • includes array[string] Required

        An array of strings that defines the fields that will be excluded from the analysis. You do not need to add fields with unsupported data types to excludes, these fields are excluded from the analysis automatically.

      • excludes array[string] Required

        An array of strings that defines the fields that will be included in the analysis.

    • authorization object
      Hide authorization attributes Show authorization attributes object

      • api_key object
        Hide api_key attributes Show api_key attributes object

        • id string Required

          The identifier for the API key.

        • name string Required

          The name of the API key.

      • roles array[string]

        If a user ID was used for the most recent update to the job, its roles at the time of the update are listed in the response.

      • service_account string

        If a service account was used for the most recent update to the job, the account name is listed in the response.

    • create_time number

      Time unit for milliseconds

    • description string
    • dest object Required
      Hide dest attributes Show dest attributes object

      • index string Required
      • results_field string

        Path to field or array of paths. Some API's support wildcards in the path to select multiple fields.

    • id string Required
    • max_num_threads number
    • model_memory_limit string
    • source object Required
      Hide source attributes Show source attributes object

      • index string | array[string] Required
      • query object
        Hide query attributes Show query attributes object

        • bool object
        • boosting object
        • common object Deprecated
        • combined_fields object
        • constant_score object
        • dis_max object
        • distance_feature
        • exists object
        • function_score object
        • fuzzy object

          Returns documents that contain terms similar to the search term, as measured by a Levenshtein edit distance.

        • geo_bounding_box object
        • geo_distance object
        • geo_polygon object
        • geo_shape object
        • has_child object
        • has_parent object
        • ids object
        • intervals object

          Returns documents based on the order and proximity of matching terms.

        • knn object
        • match object

          Returns documents that match a provided text, number, date or boolean value. The provided text is analyzed before matching.

        • match_all object
        • match_bool_prefix object

          Analyzes its input and constructs a bool query from the terms. Each term except the last is used in a term query. The last term is used in a prefix query.

        • match_none object
        • match_phrase object

          Analyzes the text and creates a phrase query out of the analyzed text.

        • match_phrase_prefix object

          Returns documents that contain the words of a provided text, in the same order as provided. The last term of the provided text is treated as a prefix, matching any words that begin with that term.

        • more_like_this object
        • multi_match object
        • nested object
        • parent_id object
        • percolate object
        • pinned
        • prefix object

          Returns documents that contain a specific prefix in a provided field.

        • query_string object
        • range object

          Returns documents that contain terms within a provided range.

        • rank_feature object
        • regexp object

          Returns documents that contain terms matching a regular expression.

        • rule object
        • script object
        • script_score object
        • semantic object
        • shape object
        • simple_query_string object
        • span_containing object
        • span_field_masking object
        • span_first object
        • span_multi object
        • span_near object
        • span_not object
        • span_or object
        • span_term object

          Matches spans containing a term.

        • span_within object
        • sparse_vector
        • term object

          Returns documents that contain an exact term in a provided field. To return a document, the query term must exactly match the queried field's value, including whitespace and capitalization.

        • terms object
        • terms_set object

          Returns documents that contain a minimum number of exact terms in a provided field. To return a document, a required number of terms must exactly match the field values, including whitespace and capitalization.

        • text_expansion object Deprecated

          Uses a natural language processing model to convert the query text into a list of token-weight pairs which are then used in a query against a sparse vector or rank features field.

        • weighted_tokens object Deprecated

          Supports returning text_expansion query results by sending in precomputed tokens with the query.

        • wildcard object

          Returns documents that contain terms matching a wildcard pattern.

        • wrapper object
        • type object
      • runtime_mappings object
        Hide runtime_mappings attributes Show runtime_mappings attributes object

        • Additional properties
        • fields
        • fetch_fields array[object]

          For type lookup

        • format string

          A custom format for date type runtime fields.

        • input_field string

          Path to field or array of paths. Some API's support wildcards in the path to select multiple fields.

        • target_field string

          Path to field or array of paths. Some API's support wildcards in the path to select multiple fields.

        • target_index string
        • script object
        • type string Required

          Values are boolean, composite, date, double, geo_point, ip, keyword, long, or lookup.

      • _source object
        Hide _source attributes Show _source attributes object

        • includes array[string] Required

          An array of strings that defines the fields that will be excluded from the analysis. You do not need to add fields with unsupported data types to excludes, these fields are excluded from the analysis automatically.

        • excludes array[string] Required

          An array of strings that defines the fields that will be included in the analysis.

    • version string