AlchemyAPI – Sentiment Analysis and Personality Insights

AlchemyAPI – Sentiment Analysis and Personality Insights

The housekeeping items

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• Webinar slides, recording and Q&A will be emailed• Enter questions in chat on webinar panel • Or ask your questions on Twitter @alchemyapi

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What will be covered today?

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• Approaches to sentiment analysis• Watson Personality Insights: The Big 5• Sample calls• Parameter explanation

• Document-level, entity-targeted, and keyword-targeted sentiment mining.• Understands negations, amplifiers, diminishers, typos, hashtags and slang.

• Examples:

– Overall Text Sentiment• So happy I found this pizza

– Targeted Sentiment• So happy I found this pizza, I really don't like hot dogs

Extract positive and negative opinions from any text.

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Sentiment Analysis

Watson Personality Insights: The Big 5

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• Agreeableness• A person's tendency to be compassionate and cooperative toward others

• Conscientiousness• A person's tendency to act in an organized or thoughtful way

• Extraversion• A person's tendency to seek stimulation in the company of others

• Emotional Range• The extent to which a person's emotions are sensitive to the

individual's environment

• Openness• The extent to which a person is open to experiencing a variety of

activities

Watson Personality Insights: The Big 5

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Making Sentiment Calls - cURL

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curl 'http://access.alchemyapi.com/calls/text/TextGetTextSentiment?outputMode=json&text=That%20pizza%20was%20delicious&apikey=YOUR_API_KEY'

{ "status": "OK", "totalTransactions": "1", "language": "english", "docSentiment": { "score": "0.660833", "type": "positive" }}

Sentiment Parameters

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• url – url of text to be analyzed

• only used with endpoints URLGetTextSentiment and URLGetTargetedSentiment

• text – text to be analyzed

• only used with endpoints TextGetTextSentiment and TextGetTargetedSentiment

• target – target phrase

• apikey – your API key

• outputMode –xml, json

• jsonp – desired JSONP callback (requires json outputMode)

• showSourceText – whether to include the original 'source text' the sentiment was extracted from

Additional info for Sentiment Analysis

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• Maximum document size for HTML documents is 600kb. Remaining text after HTML cleaning must be less than 50kb.

• Sentiment analysis is supported for eight languages: English, Spanish, Italian, German, French, Portuguese, Swedish, and Russia

• If the sentiment target is not found, a "cannot-locate-keyphrase" error response will be returned

Making Personality Insights Calls - cURL

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curl -v -X POST -d @personality.txt -u USERNAME:PASSWORD -H "Accept-Language: en" -H "Content-Type: text/plain" -H "Accept: application/json" "Content-Language: en" "https://gateway.watsonplatform.net/personality-insights/api/v2/profile"

{ "id": "Openness", "name": "Openness", "category": "personality", "percentage": 0.8925013538451143, }, { "id": "Conscientiousness", "name": "Conscientiousness", "category": "personality", "percentage": 0.7348076938514495, }, { "id": "Extraversion", "name": "Extraversion", "category": "personality", "percentage": 0.4771565706306179, }, { "id": "Agreeableness", "name": "Agreeableness", "category": "personality", "percentage": 0.4130282366306227, }, { "id": "Neuroticism", "name": "Emotional range", "category": "personality", "percentage": 0.09469501678631477, }

Personality Insights Header Parameters

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• Content-Type – text/plain, text/html, application/json

• Accept – application/json, text/csv

• Accept-Language – en (english response only)

• Content-Language – en, es (english or spanish input)• include_raw - if true, will return a raw score for each

characteristic in addition to a normalized score

• headers – if true, column labels are returned with CSV

response

Are you ready to get started?

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• Get an AlchemyAPI key and sign up on Bluemix

• Download the Alchemy and Watson SDKs• Check out the Getting Started Guides and

WDC Documentation for examples• Ask me questions!

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Q&A

• Look out for a follow up email with a copy of these slides, a recording of the webinar, Q&A recap, and additional resources

• View and share this presentation on SlideShare

• Follow us for more webinars

• The series continues bi-weekly on Wednesdays @ 12pm ET / 9am PT

• August 5 - Cognitive News

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What’s next?

Contact us1-877-253-0308

zach@alchemyapi.comwww.alchemyapi.com

Thank you for attending!

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