oracle.dmt.odm.model
Class NaiveBayesModel

java.lang.Object
  |
  +--oracle.dmt.odm.MiningObject
        |
        +--oracle.dmt.odm.LocatableObject
              |
              +--oracle.dmt.odm.model.MiningModel
                    |
                    +--oracle.dmt.odm.model.SupervisedModel
                          |
                          +--oracle.dmt.odm.model.NaiveBayesModel

All Implemented Interfaces:

java.io.Serializable

public abstract class NaiveBayesModel

extends SupervisedModel

An instance of NaiveBayesModel contains the metadata and Bayes statistics from the training run (see class MiningBuildTask). The metadata information is sufficient to determine whether a model can be applied to given data. The Bayes statistics, which make up the Naive Bayes model, reside in the database and are sufficient to make predictions by applying the model to new data (via the classes MiningApplyTask, MiningTestTask, and MiningLiftTask). A NaiveBayesModel uses Bayes' Theorem, together with a simplifying assumption of conditional independence, to gather statistics about co-occurrences of predictor values and target classification; these statistics are used for predicting the classification based on the predictors.

See Also:

Serialized Form

Method Summary

static RecordInstance	apply(Connection dmsConn, RecordInstance record, java.lang.String modelName) Performs the apply mining operation on a single record represented by an instance of RecordInstance.
static RecordInstance	apply(Connection dmsConn, RecordInstance record, java.lang.String modelName, MiningApplyOutput applyOutput) Performs the apply mining operation on a single record represented by an instance of RecordInstance.

Methods inherited from class oracle.dmt.odm.model.SupervisedModel

apply, computeLift, getConditionsTableName, getCostMatrixTableName, getNumberOfConditions, getNumberOfPriors, getPriorsTableName, getTargetCategorySet, getTargetValueCount, restore, restore, test

Methods inherited from class oracle.dmt.odm.model.MiningModel

build, getBinCategoricalTableName, getBinNumericTableName, getMiningAlgorithm, getMiningFunction, getMiningFunctionSettings, getModelAlgorithm, getModelMiningFunction, getModelName, getSignature, listContents, listContents, listContents, listContents, remove, rename, storeLocationdata

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

apply

public static RecordInstance apply(Connection dmsConn,
RecordInstance record,
                                   java.lang.String modelName)
                                                  throws InvalidArgumentException,
                                                         java.sql.SQLException,
ODMException

Performs the apply mining operation on a single record represented by an instance of RecordInstance. The result of this method is also returned in an instance of RecordInstance, which contains the top prediction and its probability (i.e., its probability is the highest among all predictions). The returned RecordInstance contains the default attribute instance values: score and probability. Note that no mining result is persisted for the result of this operation.

Parameters:

record - An instance of RecordInstance for input to apply

modelName - The model name to be used for apply

Returns:

An instance of RecordInstance that contains two attribute instances: score and probability of the top prediction.

Throws:

InvalidArgumentException -

• when dmsConn is null,
• when record is null, or
• when modelName is null.

ODMException - when modelName is empty or exceeds 30 bytes in length.

java.sql.SQLException - when an error occurs during the execution of apply operation.

See Also:

RecordInstance, AttributeInstance

apply

public static RecordInstance apply(Connection dmsConn,
RecordInstance record,
                                   java.lang.String modelName,
MiningApplyOutput applyOutput)
                                                  throws InvalidArgumentException,
                                                         java.sql.SQLException,
ODMException

Performs the apply mining operation on a single record represented by an instance of RecordInstance. The result of this method is also returned in an instance of RecordInstance, which contains attribute instances based on the specification in applyOutput. Note that no mining result is persisted for the result of this operation.

Parameters:

record - An instance of RecordInstance for input to apply

modelName - The model name to be used for apply

applyOutput - A specification on the format of apply output

Returns:

An instance of RecordInstance that contains attribute instances based on the specification in applyOutput

Throws:

InvalidArgumentException -

• when dmsConn is null,
• when record is null,
• when modelName is null, or
• when applyOutput is null.

ODMException - when modelName is empty or exceeds 30 bytes in length.

java.sql.SQLException - when an error occurs during the execution of apply operation.

Since:

9.2.0

See Also:

RecordInstance, AttributeInstance, MiningApplyOutput