@aws-sdk/client-comprehend

What is @aws-sdk/client-comprehend?

@aws-sdk/client-comprehend is an AWS SDK for JavaScript package that allows developers to interact with Amazon Comprehend, a natural language processing (NLP) service. This package provides functionalities for text analysis, including language detection, sentiment analysis, entity recognition, key phrase extraction, and topic modeling.

What are @aws-sdk/client-comprehend's main functionalities?

Language Detection

This feature allows you to detect the dominant language in a given text. The code sample demonstrates how to use the DetectDominantLanguageCommand to identify the language of the input text.

const { ComprehendClient, DetectDominantLanguageCommand } = require('@aws-sdk/client-comprehend');

const client = new ComprehendClient({ region: 'us-east-1' });
const params = { Text: 'Hello, how are you?' };
const command = new DetectDominantLanguageCommand(params);
client.send(command).then(response => console.log(response)).catch(error => console.error(error));

Sentiment Analysis

This feature allows you to analyze the sentiment of a given text, determining whether it is positive, negative, neutral, or mixed. The code sample shows how to use the DetectSentimentCommand to analyze the sentiment of the input text.

const { ComprehendClient, DetectSentimentCommand } = require('@aws-sdk/client-comprehend');

const client = new ComprehendClient({ region: 'us-east-1' });
const params = { Text: 'I am very happy today!', LanguageCode: 'en' };
const command = new DetectSentimentCommand(params);
client.send(command).then(response => console.log(response)).catch(error => console.error(error));

Entity Recognition

This feature allows you to identify entities such as people, places, and organizations in a given text. The code sample demonstrates how to use the DetectEntitiesCommand to recognize entities in the input text.

const { ComprehendClient, DetectEntitiesCommand } = require('@aws-sdk/client-comprehend');

const client = new ComprehendClient({ region: 'us-east-1' });
const params = { Text: 'Amazon Web Services is a subsidiary of Amazon.', LanguageCode: 'en' };
const command = new DetectEntitiesCommand(params);
client.send(command).then(response => console.log(response)).catch(error => console.error(error));

Key Phrase Extraction

This feature allows you to extract key phrases from a given text. The code sample shows how to use the DetectKeyPhrasesCommand to extract key phrases from the input text.

const { ComprehendClient, DetectKeyPhrasesCommand } = require('@aws-sdk/client-comprehend');

const client = new ComprehendClient({ region: 'us-east-1' });
const params = { Text: 'Machine learning is a fascinating field of study.', LanguageCode: 'en' };
const command = new DetectKeyPhrasesCommand(params);
client.send(command).then(response => console.log(response)).catch(error => console.error(error));

Topic Modeling

This feature allows you to identify topics in a collection of documents. The code sample demonstrates how to use the StartTopicsDetectionJobCommand to start a topic detection job with input and output data stored in Amazon S3.

const { ComprehendClient, StartTopicsDetectionJobCommand } = require('@aws-sdk/client-comprehend');

const client = new ComprehendClient({ region: 'us-east-1' });
const params = { InputDataConfig: { S3Uri: 's3://your-bucket/input-data' }, OutputDataConfig: { S3Uri: 's3://your-bucket/output-data' }, DataAccessRoleArn: 'arn:aws:iam::your-account-id:role/your-role', NumberOfTopics: 10 };
const command = new StartTopicsDetectionJobCommand(params);
client.send(command).then(response => console.log(response)).catch(error => console.error(error));

Other packages similar to @aws-sdk/client-comprehend

natural

The 'natural' package is a general natural language processing (NLP) library for JavaScript. It provides functionalities such as tokenization, stemming, classification, and more. Unlike @aws-sdk/client-comprehend, which is a cloud-based service, 'natural' is a local library that does not require internet access or an AWS account.

compromise

The 'compromise' package is a lightweight NLP library for JavaScript. It offers features like part-of-speech tagging, named entity recognition, and text normalization. While it provides some similar functionalities to @aws-sdk/client-comprehend, it operates entirely on the client side and does not offer the same level of scalability or integration with other AWS services.

wink-nlp

The 'wink-nlp' package is a fast and accurate NLP library for JavaScript. It includes features such as tokenization, named entity recognition, sentiment analysis, and more. Unlike @aws-sdk/client-comprehend, 'wink-nlp' is designed for local processing and does not require cloud infrastructure, making it suitable for applications where data privacy is a concern.

README

@aws-sdk/client-comprehend

For SDK usage, please step to SDK readme.