Keyword Extraction | Understanding Search Algorithms
Posted: Wed Apr 30, 2025 5:27 am
⏲ Reading time: 19 minutes
All semantic analysis tools use keyword extraction to create writing guides. Using the right extraction method for your purpose helps you find the most relevant terms for SEO writing.
Keyword mining (also called keyword analysis) is a method of studying a text that automatically extracts the most important words and terms . This allows you to summarize the content of a text and identify the main topics covered.
Keyword mining helps search engines analyze the content of online pages. It helps sort through all the data and determine which words best describe each page . This way, Google creates clusters of keywords, saving hours of processing time if it had to query its entire index for each query.
One of the main tasks of SEO is to determine which strategic keywords we want to target on our website, so that we can create content around these keywords.
This article uses examples and references to the Stargate SG-1 universe
What is the purpose of keyword extraction in SEO?
There are at least 3 good reasons to research a page's keywords !
Know the opinions
Monitor the competition
Finding new ideas
1. Extract keywords and reviews from a page
Screenshot of the SEOQuantum tool
First, we'll look at a page's rating of the Stargate series . By extracting keywords, it's easy to see which reviews are mentioned (good; remarkable series; promising, etc.).
You can use SEOQuantum's keyword mining software to find single words (keywords) or groups of two or more words that create a sentence (keyphrases).
2. Monitor the competition
There are a myriad of tools available for keyword research. However, you can also take advantage of keyword mining to automatically crawl website content and extract their most frequently used keywords . If you identify the most relevant keywords used by your competitors, for example, you can spot excellent content writing opportunities.
Especially thanks to SEOQuantum's competitive analysis, I love this graph (heatmap) which allows you to see at a glance the topics covered by competitors on the TOP 10 of the SERP.
Here, for the query " stargate actors ", we note that:
The first site positioned mainly addresses the series and its key actors (Richard Dean Anderson, Amanda Tapping, Michael Shanks)
The other topics on the SERP pages are either focused on the series or on the actors from the first film (Kurt Russell and James Spader).
Learn more about SEO competitor analysis.
3. Find new keyword ideas
Product reviews and other types of user-generated content can be excellent sources for discovering new keywords . Mining keywords to identify strategic keywords among consumers can be used for SEO purposes through long-tail strategies .
As you can see, the keywords are already present in the original text. This is the main difference between belgium phone number data keyword extraction and topic modeling [1] , which consists of choosing keywords from a vocabulary list or categorizing a text based on the keywords used.
How is keyword mining useful?
Considering that over 80% of the data we generate every day is unstructured—that is, it's not organized in a predefined way and is therefore difficult to analyze and process—keyword mining is very appealing. It's a powerful tool that can help you understand data about a page, customer reviews, a comment, etc. In short, any unstructured data.
Some of the major benefits of keyword mining include:
Scalability
Automated keyword extraction allows you to analyze as much data as you want . While you could read the texts yourself and identify keywords manually, this would be time-consuming. Automating this task gives you the freedom to focus on other tasks.
All semantic analysis tools use keyword extraction to create writing guides. Using the right extraction method for your purpose helps you find the most relevant terms for SEO writing.
Keyword mining (also called keyword analysis) is a method of studying a text that automatically extracts the most important words and terms . This allows you to summarize the content of a text and identify the main topics covered.
Keyword mining helps search engines analyze the content of online pages. It helps sort through all the data and determine which words best describe each page . This way, Google creates clusters of keywords, saving hours of processing time if it had to query its entire index for each query.
One of the main tasks of SEO is to determine which strategic keywords we want to target on our website, so that we can create content around these keywords.
This article uses examples and references to the Stargate SG-1 universe
What is the purpose of keyword extraction in SEO?There are at least 3 good reasons to research a page's keywords !
Know the opinions
Monitor the competition
Finding new ideas
1. Extract keywords and reviews from a page
Screenshot of the SEOQuantum tool
First, we'll look at a page's rating of the Stargate series . By extracting keywords, it's easy to see which reviews are mentioned (good; remarkable series; promising, etc.).
You can use SEOQuantum's keyword mining software to find single words (keywords) or groups of two or more words that create a sentence (keyphrases).
2. Monitor the competition
There are a myriad of tools available for keyword research. However, you can also take advantage of keyword mining to automatically crawl website content and extract their most frequently used keywords . If you identify the most relevant keywords used by your competitors, for example, you can spot excellent content writing opportunities.
Especially thanks to SEOQuantum's competitive analysis, I love this graph (heatmap) which allows you to see at a glance the topics covered by competitors on the TOP 10 of the SERP.
Here, for the query " stargate actors ", we note that:
The first site positioned mainly addresses the series and its key actors (Richard Dean Anderson, Amanda Tapping, Michael Shanks)
The other topics on the SERP pages are either focused on the series or on the actors from the first film (Kurt Russell and James Spader).
Learn more about SEO competitor analysis.
3. Find new keyword ideas
Product reviews and other types of user-generated content can be excellent sources for discovering new keywords . Mining keywords to identify strategic keywords among consumers can be used for SEO purposes through long-tail strategies .
As you can see, the keywords are already present in the original text. This is the main difference between belgium phone number data keyword extraction and topic modeling [1] , which consists of choosing keywords from a vocabulary list or categorizing a text based on the keywords used.
How is keyword mining useful?Considering that over 80% of the data we generate every day is unstructured—that is, it's not organized in a predefined way and is therefore difficult to analyze and process—keyword mining is very appealing. It's a powerful tool that can help you understand data about a page, customer reviews, a comment, etc. In short, any unstructured data.
Some of the major benefits of keyword mining include:
Scalability
Automated keyword extraction allows you to analyze as much data as you want . While you could read the texts yourself and identify keywords manually, this would be time-consuming. Automating this task gives you the freedom to focus on other tasks.