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Sentiment Analysis For Finance

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Understanding Sentiment Analysis

Sentiment analysis, also known as opinion mining, refers to the use of natural language processing, text analysis and computational linguistics to identify and extract subjective information in source materials. (Wikipedia) Going deeper into the technical aspect, you may be wondering how does Sentiment Analysis work? What exactly is the technical tool that powers such a technology? The answer is the Sentiment Analysis API.

 

How Sentiment Analysis API Work

In layman terms, every word is given a score based on its extent of positiveness or negativeness. The Sentiment Analysis API works by calculating the algorithmic score of each word, and returning with the combined score for the given set of text.

 

How Can The Sentiment Analysis API Be Applied In The Financial Sector?

The most common use of The Sentiment Analysis API in the financial sector will be the analysis of financial news, in particular to predicting the behaviour and possible trend of stock markets.

Traditional Technical Analysis of the Financial Market with the use of tools the like of Stockastics and Bollinger bands aside, sentiment analytics has been receiving a lot of attention as it allows the integration of both Fundamental Analysis (FA) and Technical Analysis (TA).

In real life, Financial Market Analysts make predictions on the stock market based on opinions and happenings in the news. Similarly, Sentiment Analysis API is making it possible for computers to do the same job now. Further more, with advance computational linguistic and machine learning techniques, the task of opinion mining proves to be more efficient than human analysts, having the capability to scan through huge chunk of text across various news channels within seconds.

A simple example of the real application of Sentiment Analysis API for the financial sector can be explained by the task of assigning positive, negative or neutral sentiment values to the words. For instance, words such as “good“, “benefit“, “positive“, and “growth” are all tagged with positive scores while words such as “risk“, “fall“, “bankruptcy“, and “loss” are tagged with negative scores. Try out The Sentiment Analysis API Demo Page to get what I mean.

Check out this post to learn how to build your own sentiment analysis app.

 

Flow Chart

The following diagram illustrates the flow of Sentiment Analysis application in the financial world.

SentimentAnalysisForFinance

Diagram credits of Juana, Rafael, Francisco, Semantic-Based Sentiment analysis in financial news, Vol-862 

 

Other Alternatives

Other alternatives to Sentiment Analysis includes “Semantic Analysis” and “Text Analysis”. Seemingly similar, but distinguishably different, Text Analysis deals with understanding of the overall meaning of the words that appeared in a structured document based on grammatical usage, while Semantic Analysis deals with the meaning of the text, looking deeper into contextual relationships between the words.

It is not uncommon for businesses to utilize these APIs concurrently to gain a deeper insight of the texts.

 

The Trend Of Sentiment Analysis

Sentiment Analysis has been heavily used by businesses for social media opinion mining, especially in the service industry, where customers feedback are critical. In the recently year, it has been gaining popularity in the finance sector, where it has been used to analyze tweets of influential financial analysts and decision makers. It seems like there are so much potential to be unlocked for the usage of Sentiment Analysis. It is curious to what will be the next breakthrough!

Check out the free Sentiment Analysis tool online, or learn how to build your own sentiment analysis app.

 

 

 

 

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Team Twinword
Team Twinword
Based on text analysis technologies, we developed Twinword Ideas to help marketers select relevant keywords faster. Powered by A.I., Twinword Ideas groups keywords by user intent, popular topics and patterns.

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3 Comments

  1. Avatar for Rony Rony says:
    2020-07-03 at 2:42 am

    What languages this API supports?

    Reply
    • Avatar for Kono Kim Kono Kim says:
      2020-07-03 at 8:27 am

      Currently, only English is supported.

      Reply
  2. Avatar for Siva Siva says:
    2020-05-28 at 9:22 am

    Really nice and interesting post. I was looking for this kind of information and enjoyed reading this one. Keep posting. Thanks for sharing.

    Reply

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