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Getting Started With Sentiment Analysis In Python

Getting Started With Sentiment Analysis In Python

The advancements of the technological world are all directed towards achieving a single goal, which is to make users satisfied. A big chunk of the tech world is dedicated to giving customers the space to voice their opinions so that they can feel a sense of belonging and get heard by the inventors of digital products. However, since there are tons of users utilizing digital services, it gets hard for industries to stay updated with every piece of feedback. In order to combat this issue, the tech world has developed the concept of sentiment analysis. In this article, we will explore topics related to this technology and ways to get started with sentiment analysis Python. 

What Is Sentiment Analysis? – An Emerging Concept In The Tech World

First things first, what is sentiment analysis? Since a lot of people are new to this concept, it is really important to have an understanding of the term for further learning. By definition, sentiment analysis is a technical process that includes understanding the emotions of consumers through verbal input or feedback. 

A review can be either positive, negative, or neutral. However, analyzing each and every review might be time-consuming and a difficult challenge for developers. For this reason, companies and businesses utilize software systems that make sentiment analysis easier and more efficient. Without reading the whole text, a system can easily detect the emotion being expressed by analyzing the tone or series of specific words used in the text.

The process of sentiment analysis is also known as opinion mining. This technology utilized the help of many AI tools like data mining, machine learning, Natural Language Processing (NLP), and others in order to dig deep into the demands, reviews, needs, likes, and dislikes of customers. Information based on reviews really helps a business flourish and maintain its customer relationships as well as its name and place in the market. 

What Are The Types Of Sentiment Analysis?

Sentiment analysis is just not of a single type. Instead, there are multiple different kinds of this procedure. In this section, we will discuss them one by one. 

  • Intent-Based Sentiment Analysis. 
  • Aspect-Based Sentiment Analysis. 
  • Emotion-Detection Sentiment Analysis.
  • Fine-Grained Analysis.

  • Intent-Based Sentiment Analysis

The first type of sentiment analysis is intent-based analysis. With the help of this process, businesses and companies can easily identify and interpret consumers’ intentions towards the company and the goods or services they have to offer. This type of sentiment analysis helps industries know whether a customer is interested in availing of their services and products or not. 

  • Aspect-Based Sentiment Analysis

The second type of sentiment analysis is known as aspect-based sentiment analysis. This kind of analysis helps people understand the reviews of users with regard to a certain or specific aspect of a product or service. For instance, a customer review highlighting how they like the camera results of a mobile phone will fall into this category as the review is targeted to a certain aspect of the product. 

  • Emotion-Detection Sentiment Analysis

This type of sentiment analysis is targeted toward understanding the emotions and feelings customers have towards the products and services of a business or brand. With the help of NLP’s lexicons feature, this process helps in figuring out a wide range of emotions like happiness, sadness, anger, frustration, etc., in the text of a consumer. 

  • Fine-Grained Analysis

The last type of sentiment analysis is known as fine-grained analysis. This technique or procedure includes creating detailed categories and analyzing the reviews in order to allocate them to a specific category. The range of options in this procedure includes very negative, negative, neutral, positive, very positive, etc. Fine-grained analysis helps companies get detailed insights within a short period of time. 

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How Does Sentiment Analysis Work? – The Top Three Models Of Sentiment Analysis

The working procedure of sentiment analysis is different from the models of implementing the procedure in companies and businesses. Here, we will focus on the models through which the procedure actually works. The top three models of sentiment analysis are mentioned below. 

  • Rule-Based Sentiment Analysis.
  • Automatic Or Machine Learning-Based Sentiment Analysis. 
  • Hybrid Model Of Sentiment Analysis. 

  • Rule-Based Sentiment Analysis

The first working model of sentiment analysis is known as rule-based sentiment analysis. In this procedure, the lexicon system of NLP is utilized to create a list of words and define the emotions they portray. These emotions can be categorized into negative, positive, or neutral classes. The system efficiently counts the number of terms used in a review to determine which category the review represents.

For instance, if a customer leaves a review like ‘I am highly satisfied and amazed by the service and quality of food at this restaurant,’ The system will easily detect words like ‘satisfied and ‘amazed’ in order to identify the comment as a positive review. 

  • Automatic Or Machine Learning-Based Sentiment Analysis 

In this type of model, sentiment analysis utilizes machine-learning models, which are taught using data sets that contain both positive and negative words. These models can automatically identify the tone or mood of the text. Once training is completed, these models do not require the assistance of humans in order to fulfill the task. 

  • Hybrid Model Of Sentiment Analysis

The last model of sentiment analysis is known as hybrid sentiment analysis. This procedure includes a mixture of rule-based and automatic models to generate accurate results without any errors or bugs. 

How Does Sentiment Analysis Work? 

Now that we have reviewed the working models of sentiment analysis, we will quickly review the steps or stages that make the procedure workable and successful. 

  • The first step includes collecting the data that needs to be reviewed. 
  • The second step includes clearing or cleaning the data from words or fragments that are irrelevant or do not serve any purpose in the process. 
  • The third step includes extracting features of the text that will help identify the meaning and purpose of the review. 
  • In the fourth step, professionals apply a chosen model, like a rule-based, automatic ML, or hybrid model, which allows them to carry out the procedure of determining the emotions in the text.
  • The fifth and last step includes categorizing the feedback or review into a specific category—for instance, positive, negative, neutral, etc. 

What Are Some Of The Practical Applications Of Sentiment Analysis?

Now that you are well-versed in understanding what sentiment analysis is, its types, work models, and steps to implement the model, it is time to understand and know the areas of implementation for sentiment analysis procedures. 

Since the launch of this process, sentiment analysis has gained the attention of many industries and businesses. However, the areas where each company implements sentiment analysis procedures might be different. Some of these areas of application are mentioned below. 

  • Social Media Monitoring. 
  • Brand Monitoring. 
  • Voice Of Customers. 
  • Product Analysis. 
  • Voice Of Employee.
  • Market Research. 

  • Social Media Monitoring 

The first practical implementation of sentiment analysis is in the area of social media monitoring procedures. Since social media platforms are widely utilized by users all over the world, businesses are always looking forward to keeping their social media presence stable and prominent. 

The posts and content on any sort of social networking site have the most following among users. Consumers try to connect and interact with the business by commenting on posts, sending direct messages, or sharing their own experiences. In this regard, sentiment analysis helps firms identify the emotions and intentions users are expressing in the comments or other forms of verbal communication. 

  • Brand Monitoring

Brand monitoring is one of the key aspects of a business’s ability to maintain its reputation and name in the market. It is essential for business owners to know what people think or feel about their brand. With the help of sentiment analysis and its types, businesses can easily get notified when someone shares both positive and negative reviews regarding their brand. This procedure helps them make sure they deliver top-quality products and services with regard to likes and dislikes.  

  • Voice Of Customers 

The third application of sentiment analysis is listening to what customers have to say about your brand. Here, the target of the model is not in a specific area like social media or brand reputation. Instead, in this implementation, businesses gather reviews from all over the internet, like websites, applications, social media, customer service, chat support, etc., in order to get a clear image of the way people are responding to the brand. 

  • Product Analysis

Once a company launches a new product on the market, its main concerns include knowing and monitoring what customers think about the product. In this regard, sentiment analysis is the best way to facilitate the process of product analysis. In this way, businesses can easily target the pitfalls and strengths of their new product or products in general. 

  • Voice Of Employee

Just like prioritizing the voice of customers and their opinions, a good business setup or management will also leave room for its employees to share views and reviews. Sentiment analysis is then targeted toward identifying the emotions, perceptions, and feelings that employees have toward their workspace. 

  • Market Research

Last but not least, sentiment analysis is an amazing and beneficial tool when digital marketers working for a company want to conduct market research targeting their competition in the business market. With the help of this method, businesses and brands can easily identify what people have to say about their competitors and how they can level up their game. Sentiment analysis is a great working procedure when it comes to acquiring the image of your business in the eyes of people who are related to it. Be it employees, customers, competitor’s research, marketing campaign effects, or other domains, sentiment analysis will always help people dig deep into the perceptions of the audience and how they are influencing their emotions.

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What Is Python? 

Since the article is about sentiment analysis in Python, we have covered one part of the article, which is understanding what sentiment analysis is and the topics related to it. It is now time to define and explain what Python is. 

If you are aware of what a programming language is and how it works, it might become easier for you to understand what Python is. Python is known as one of the most popular and useful programming languages among software developers worldwide. 

It was developed in 1991 by Guido Van Rossum. Python is not just a basic programming language. Instead, it is an interpreted, high-level programming language that is also known to be object-oriented. Python is used by developers to create unique, appealing, and functional web applications, websites, and software programs, as well as for system scripting. In other words, Python is a useful tool when it comes to the development of software systems that are meant to be deployed on multiple platforms, including user-friendly syntax writing, and is a beginner-friendly tool when it comes to learning or implementing. 

Python Sentiment Analysis: Analyzing The Relationship Between Both 

Up until now, we all knew what sentiment analysis and Python were. But is there any connection between the two? Are they related in any way? Does one facilitate the other? These types of questions have yet to be explored and answered. 

There is an obvious connection between sentiment analysis and Python. The former terminology refers to a procedure that requires functional software to be designed and developed to carry out the task. The latter terminology is used to create the software, which would make the working of sentiment analysis possible and functional. 

With the help of sentiment analysis Python, companies and businesses can easily carry out the task of data analysis that is included in identifying the emotions and intentions of people when they leave a comment or review regarding their products and services. The system basically helps them carry out the task in an organized and effective manner without wasting any time, effort, or resources. 

Python Tools That Facilitate The Process Of Sentiment Analysis

Now comes the part where we will actually dig deep into the concept and methodology of sentiment analysis in Python. This programming language provides various tools to developers in order to get the procedure started. Some of these tools are mentioned below in the list. 

  • Text Blob.
  • VADER. 
  • Transform-Based Models.
  • Bag Of Words Vectorization-Based Models.
  • NLTK. 

  • Text Blob

The first in the list is known as Text Blob, which is a Python Library used to carry out the task of sentiment analysis by utilizing NLP frameworks. This tool takes a text or comment as input and identifies the polarity and subjectivity in the text. 

Polarity is the element that helps determine if the text is positive or negative. On the other hand, subjectivity allows businesses to understand whether a comment is based on factual information or a personal opinion. 

  • VADER

VADER is the abbreviated form of Valence-Aware Dictionary and Sentiment Reasoner. This Python sentiment analysis toolkit utilizes and implements a rule-based approach to the process of identifying emotions and meanings in user reviews and comments. Its application is also simple, like Text Blob. 

  • Transform-Based Models

Next, sentiment analysis in the Python toolkit is also known as one of the most sophisticated Natural Language Processing (NLP) techniques. The name of this tool is transformer-based modeling. Businesses and companies get outstanding outcomes by using TSM, as it utilizes self-attention principles and an architecture based on encoder-decoders.

Industries can spend their time creating a transformer model from scratch. However, doing so might be time-consuming for them. To cater to this issue, there are also pre-trained transformer models available on the market.  For instance, the models available on Hugging Face, which is an open-source AI community, can be utilized as-is or customized for certain needs.

  • Bag Of Words Vectorization-Based Models

Unlike Text Blob and VADER, which are known as Python libraries, Python sentiment analysis utilized another approach to carry out the task. This approach is known as the vectorization-based model. In this process, a model is trained from scratch to carry out the process of identifying the emotions and meanings of a text. 

  • NLTK

Last in line to discuss is the tool known as the Natural Language Toolkit, available in Python. With the help of this open-source library, sentiment analysis Python has been simplified and made more convenient for developers. It helps developers conduct various tasks included in sentiment analysis, like tokenization, stemming, parsing, etc. This library has a wide range of data in terms of text that has been derived from different sources all over the world. 

What Are The Exceptional Benefits Of Sentiment Analysis?

Now that we have analyzed the tools and models for getting started with sentiment analysis in  Python, it is time to quickly analyze the benefits that the process provides. 

  • The process of sentiment analysis helps in developing data-based and creative marketing campaigns and strategies. 
  • Sentiment analysis opens the doors for businesses to understand their customers in a better and clearer way. 
  • This procedure enables companies and brands to take a look at their reputation as well as their place in the market. 
  • With the help of sentiment analysis, brands can make an impact on famous celebrities and influencers to generate leads and sales.

To Wrap Up

Sentiment analysis is known to be a powerful and useful procedure when it comes to building a sophisticated and charming reputation among users and consumers. Since the procedure yields beneficial outcomes for industries and businesses, more and more owners are looking forward to availing themselves of the services of developers in this regard. On the other hand, developers are more interested in discovering sentiment analysis Python in a deeper way, as it has made the process simple yet accurate.

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