Language detector, which is used to perform language detection on supplied text. The on-cloud API is called, and the detection model runs on the cloud. You can create a language detector in two ways based on the site requirements.

Sample Code

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 // Obtain the language detector.
 // Method 1: Use default parameter settings.
 MLRemoteLangDetector mlRemoteLangDetector = MLLangDetectorFactory.getInstance()
.getRemoteLangDetector();
 // Method 2: Use customized parameter settings.
 // setTrustedThreshold: Set the minimum confidence threshold for language detection.
 MLRemoteLangDetectorSetting mlRemoteLangDetectorSetting = new MLRemoteLangDetectorSetting.Factory()
.setTrustedThreshold(0.01f)
.create();
 MLRemoteLangDetector mlRemoteLangDetector = MLLangDetectorFactory.getInstance()
.getRemoteLangDetector(mlRemoteLangDetectorSetting);
 // Return the detection results of multiple languages, including language codes and confidences, sourceText: text to be detected.
 Task<List<MLDetectedLang>> probabilityDetectTask = mlRemoteLangDetector.probabilityDetect(sourceText);
 probabilityDetectTask.addOnSuccessListener(new OnSuccessListener<List<MLDetectedLang>>() {
     public void onSuccess(List<MLDetectedLang> result) {
         // Processing logic for success.
     }
 }).addOnFailureListener(new OnFailureListener() {
     public void onFailure(Exception e) {
         // Processing logic for failure.
     }
 });
 // Return the language code with the highest confidence, sourceText: text to be detected.
 Task<String> firstBestDetectTask = mlRemoteLangDetector.firstBestDetect(sourceText);
 firstBestDetectTask.addOnSuccessListener(new OnSuccessListener<String>() {
     public void onSuccess(String s) {
         // Processing logic for success.
     }
 }).addOnFailureListener(new OnFailureListener() {
     public void onFailure(Exception e) {
         // Processing logic for failure.
     }
 });
 // Release the resources.
 mlRemoteLangDetector.stop();

Constant Summary

Type	Name	Desc
float	FIRST_BEST_DETECTION_LANGUAGE_TRUSTED_THRESHOLD	Confidence threshold in the scenario where the language detection result with the highest confidence is returned.
float	PROBABILITY_DETECTION_LANGUAGE_TRUSTED_THRESHOLD	Confidence threshold in the scenario where detection results of multiple languages are returned.
String	UNDETECTION_LANGUAGE_TRUSTED_THRESHOLD	Undetected language code.

Public Method Summary

Return type	Method name
MLRemoteLangDetector	create(MLApplication app, MLRemoteLangDetectorSetting setting)
com.huawei.hmf.tasks.Task	firstBestDetect(String text)
com.huawei.hmf.tasks.Task	probabilityDetect(String text)
void	stop()

Constants

Constant

public static final float FIRST_BEST_DETECTION_LANGUAGE_TRUSTED_THRESHOLD

Confidence threshold in the scenario where the language detection result with the highest confidence is returned.
Constant value: 0.5f

Constant

public static final float PROBABILITY_DETECTION_LANGUAGE_TRUSTED_THRESHOLD

Confidence threshold in the scenario where detection results of multiple languages are returned.
Constant value: 0.01f

Constant

public static final String UNDETECTION_LANGUAGE_TRUSTED_THRESHOLD

Undetected language code.
Constant value: unknown

Public Methods

Method

public static synchronized MLRemoteLangDetector create(MLApplication app, MLRemoteLangDetectorSetting setting)

Creates a language detector object.

Parameters

Parameter name	Parameter desc
app	MLApplication instance.
setting	Instance of the language detection configurator.

Return

Type	desc
MLRemoteLangDetector	Returns a language detector object.

Method

public com.huawei.hmf.tasks.TaskfirstBestDetect(String text)

Returns the language detection result with the highest confidence based on the supplied text.

Parameters

Parameter name	Parameter desc
text	Text.

Return

Type	desc
com.huawei.hmf.tasks.Task	Language detection result with the highest confidence.

Method

public com.huawei.hmf.tasks.Task<list> probabilityDetect(String text)

Returns multi-language detection results based on the supplied text.

Parameters

Parameter name	Parameter desc
text	Text.

Return

Type	desc
com.huawei.hmf.tasks.Task<list>	Task object of the multi-language detection results.

Method

public void stop()

Releases resources, including input and output streams.

Overview

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