What is Text Mining in Data Mining?

What is Text Mining in Data Mining?

Text mining is the process of removing valuable data and complex patterns from massive text datasets. The process of synthesizing information through the examination of relationships, trends, and rules amongst textual material is known as text mining. 

One of the most popular types of data in databases is text. These data may be arranged as follows, depending on the database:

• Unstructured data: This data lacks a predetermined data structure. It may contain text taken from reviews of products or social media platforms, as well as rich media formats, including audio and video files.
• Structured Data: Data that is organized into a tabular format with many rows and columns is said to be structured, and this arrangement makes it simpler to store and handle the data for analysis and algorithms for machine learning. Input data, such as phone numbers, addresses, and names, can be found in structured data.
• Semi-structured: Data that is a combination of both structured and unstructured information types, as the name implies. It has some organization but not enough structure to satisfy a relational database's criteria. XML, JSON, and HTML files are examples of semi-structured data.

For the purpose of creating predictions and making decisions, there are numerous methods and tools for text mining. The appropriate and accurate text analysis method choice contributes to increased speed and time complexity. 

Now, we will be exploring the difference between Text Mining and Text Analytics.

Text Mining vs. Text Analytics

Text analytics and text mining are frequently used interchangeably. While text analytics produces numbers, text mining is the process of extracting qualitative information from unstructured text.

By examining customer evaluations and surveys, text mining, for instance, can be used to determine whether consumers are satisfied with a product. Textual data is used to gain a deeper understanding, for example, by spotting patterns or trends in unstructured text. Text analytics, for instance, can be utilized to comprehend a negative rise in consumer satisfaction or product popularity.

The outcomes of text analytics can then be combined with data visualization strategies to facilitate decision-making and facilitate understanding.

Let us now explore the benefits of Text Mining.

Benefits of Text Mining

Text analytics can benefit corporations, organizations, and social movements in a variety of ways, including the following:

• Organize relevant information into categories to improve user content recommendation algorithms.
• Assist companies in recognizing consumer trends, performance metrics, and service excellence. As a result, decisions are made quickly, business intelligence is improved, productivity is raised, and costs are reduced.
• Helps governments and political bodies make decisions by assisting in the knowledge of societal trends and opinions.
• Search engines and information retrieval systems can perform better with the aid of text analytics tools, leading to quicker user experiences.
• Aids scholars in quickly exploring a large amount of existing literature and obtaining the information that is pertinent to their inquiry. This promotes quicker scientific advancements.

Now that we have explored the benefits of Text Mining, we will now go through its various techniques.

Text Mining Techniques

The analysis of unstructured text can be done using a variety of methods. There are several use case possibilities for each of these strategies.

Information Retrieval

Document retrieval is considered to be an extension of information retrieval that a condensing procedure is used to treat returned documents. So, document retrieval is followed by a stage of text summary. That concentrates on the user's question. 

The collection of papers that are pertinent to a certain issue can be reduced with the aid of IR systems. Due to the fact that text mining uses extremely sophisticated algorithms on big document sets. By limiting the quantity of documents, IR can also considerably speed up the analysis.

Natural Language Processing (NLP)

One of the biggest and most difficult issues is NLP. The study of language in general. These computers can comprehend natural languages just as people do. The general subject of how we interpret the meaning of a sentence or document is the focus of the NLP study. 

What clues do we look for to determine who committed what to whom? NLP's function in text mining is to provide the system with input during the information extraction stage.

Information Extraction

The process of automatically extracting organized information from unstructured data is known as information extraction. The majority of the time, this activity involves using NLP to process texts written in human languages.

Data Mining

Large data sets are sorted through data mining in order to find patterns and connections that may be used in data analysis to assist solve business challenges. Enterprises can forecast future trends and make more educated business decisions thanks to data mining techniques and technologies.

Want to learn about the Text Mining Process? Up next, we are going to cover the process overview of Text Mining.

Text Mining Process

A number of tasks must be completed as part of the text-mining process in order to extract the information. These are the pursuits:

Text Pre-processing

It involves a succession of the following steps:

Cleanup

Text cleanup refers to getting rid of any extraneous or unneeded information, such as removing advertisements from websites and converting text from binary formats to a normalized form.

Tokenization

Simply dividing the text into white spaces will tokenize it.

Tagging Part of Speech

Each token is assigned a word class by part-of-speech (POS) tagging. It receives its input from the tokenized text. Unknown terms (the OOV problem) and unclear word-tag mappings are challenges for taggers.

Text Transformation (Attribute Generation)

The words and instances of those words that make up a text document serve as its representation. 

There are two primary methods for representing documents:

1. Words in a bag
2. Vector Space

Feature Selection (Attribute Selection)

Variable selection is another name for feature selection. In order to create a model, a subset of crucial features must be chosen. Redundant features are those that don't offer any further information. Features that are irrelevant offer no information that is pertinent or beneficial in any situation.

Data Mining

The text mining procedure now combines with the standard procedure. In the structured database, traditional data mining techniques are applied. It also came about as a result of the earlier phases.

Evaluate

After you've evaluated the outcome, throw it away.

We have come a long way, but what about the applications of Text Mining? Let us explore them now!

Applications

There are several applications for text mining. Among the most typical regions are:

Resume Filtering

Each day, large companies and job agencies receive hundreds of thousands of applications from job seekers. It is difficult to extract data from resumes with good recall and precision. The first step for filtering resumes might be automated information extraction. Consequently, it is crucial to automate the resume screening process.

Web Mining

These days, the internet is a gold mine of knowledge. Examples include people, businesses, organizations, and goods that might be of general interest. Data mining techniques are used in web mining. The desire to glean unknown and hidden patterns from the web. Web mining is the process of finding terms that are indicated in a big collection of documents. 

Medical

Users communicate with one another to exchange information on relevant topics. Everyone wants to learn about particular ailments and novel treatments. Additionally, these expert forums serve as seismographs for medicinal purposes. Emails, online chats, and inquiries seeking medical counsel. Internet-based data has been examined using quantitative and qualitative techniques.

Text Mining Applications

Business Intelligence

Text mining techniques are now being heavily utilized by businesses and commercial enterprises as part of their business intelligence. Text mining tactics let businesses examine the strengths and weaknesses of their rivals, giving them a competitive edge in the market in addition to offering important insights about customer behavior and trends.

Risk Management

Analyzing, detecting, treating, and keeping track of the risks associated with any process or action in a company is known as risk management. A major contributor to disappointment is typically a lack of adequate risk analysis. 

This is especially true for financial institutions, where the use of text mining-based risk management software can significantly improve the capacity to reduce risk. It makes it possible to connect the data and allows for the management of petabytes of text data and millions of sources. It is beneficial to have timely access to the right information.

Social Media Analysis

Online data can be tracked with the aid of social media analysis, and many text-mining tools have been created specifically for this purpose. These technologies make it easier to keep track of and decipher content that is generated online by things like emails, news, blogs, etc. 

Text mining technologies can carefully examine the total amount of likes, followers, and posts your brand receives on a social media site, allowing you to understand how people are reacting to your content and brand.

Customer Care Service

NLP-focused text mining techniques, in particular, are becoming more and more important in the customer service industry. By obtaining textual data from many sources, like consumer calls, surveys, customer feedback, etc., businesses are investing in text analytics programming to enhance their entire experience. 

Text analysis' main goal is to assist businesses in responding to consumer concerns more quickly and effectively while cutting down on response times.

We will now explore the approaches of Text Mining in Data Mining.

Text Mining Approaches in Data Mining

The following text-mining techniques are applied in data mining:

1. Automatic Document Classification Analysis
2. Keyword-based Association Analysis

Let us dive deeper into these.

Automatic Document Classification Analysis

This technique is used to automatically classify the vast majority of online text documents, such as emails and web pages. As document databases are not arranged according to attribute value pairs, the categorization of text documents differs from the classification of relational data.

Keyword-Based Association Analysis

It gathers groups of terms or keywords that frequently appear together and then determines the correlation between them. The text data is first preprocessed by parsing, stemming, deleting stop words, etc. After preprocessing the data, association mining methods are introduced. Since no human effort is necessary in this case, fewer undesirable results are obtained, and the time of execution is shorter.

How to incorporate Text Mining Results? Let's learn about them!

Incorporating Text Mining Results

Data mining projects that incorporate text mining results after important words have been culled from a collection of input documents. And after salient semantic characteristics were extracted using singular value decomposition. Utilizing the information that has been retrieved is typically the next and most crucial step.

Graphics (Visual Data Mining Approaches)

In some cases, depending on the goal of the analyses. We only require the extraction of semantic dimensions. Because if it reveals the underlying structure, it might be a valuable result.

Factoring and Clustering

Methods for cluster analysis can be used to pinpoint collections of documents to locate collections of related input texts. The backdrop of marketing research studies can also benefit from this kind of study. Owners of new cars, for instance. You can also utilize classification analysis, factor analysis, and principal components analysis.

Mining of Predictive Data

Utilizing the raw as predictor factors in mining projects is another option.

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In this article, we discussed Text Mining, its usage with Data Mining, the difference between Text Mining and Text Analytics, the Benefits and Techniques of Text Mining, their applications, approaches, and incorporation. 

If you have followed through with the entire article, you have gained solid preliminary knowledge. However, to gain deeper insights into Data Mining and Data Analytics, do consider checking out Simplilearn’s Data Analytics Certification Training Course and train yourself to better career opportunities in the field of Data Analytics!

FAQs

1. What is text mining with examples?

Text data mining is another name for text mining. The goal is to extract useful numerical indices from the text from the unstructured material. Make the text's information accessible to the different algorithms as a result. The documents' information can be extracted to create summaries. As a result, you can examine individual words and word groups in texts. Text mining, to put it simply, "turns text into numbers." such involves the use of unsupervised learning techniques in predictive data mining initiatives.

2. What are the types of text mining?

The following are some of the types of Text Mining:

• Topic modeling
• Event extraction
• Named Entity Recognition (NER)
• Term frequency-inverse document frequency

3. What are text mining and web mining?

Processing unstructured text files into a structured format is called text mining, a subset of data mining. Data mining has a subset called web mining that deals with processing web-related data. Web logs, web data, or web contact info are some examples.

4. Why is text mining used?

Finding pertinent insights from massive amounts of unprocessed data is made easier with text mining. It can provide text analysis algorithms that learn to classify or extract certain information depending on prior training when combined with machine learning.

5. What are text mining tools?

There are various forms of text mining software for digital libraries, including GATE, Net Owls, and Aylien.

6. What are the two methods of text mining?

The following are the two text-mining methods are applied in data mining:

• Keyword-based Association Analysis
• Automatic Document Classification Analysis