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What is the difference between keyword-based and concept-based search in information retrieval?

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Information retrieval is the process of finding relevant and useful information from a large collection of documents, such as reports, emails, or web pages. As an office administrator, you may need to use information retrieval tools to perform various tasks, such as researching, organizing, or summarizing data. However, not all information retrieval tools work the same way. In this article, you will learn the difference between keyword-based and concept-based search, two common methods of information retrieval, and how they affect your search results and efficiency.

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Arman Liaghat

We Build AI Agents That Book +5 Highly qualified sales calls a day Inside of your company. | Companies with $1/000/000+…
Gerry Copitch

Development Director at MKAI | LinkedIn Top Voice
Dr. Benjamin Zingsem

Physics PhD, Hard- and Software Developer, Scientist, Data Expert, AI Developer, Lecturer/Coach, Nano Materials…

1 Keyword-based search

Keyword-based search is the most widely used method of information retrieval. It involves matching the words or phrases that you enter in a search box with the words or phrases that appear in the documents. For example, if you search for "office supplies", you will get documents that contain the exact words "office supplies". Keyword-based search is fast and simple, but it also has some limitations. First, it may return irrelevant or redundant documents that happen to include the same words as your query, but do not match your intended meaning or context. Second, it may miss relevant documents that use different words or synonyms to express the same concept as your query. For example, if you search for "office supplies", you may not get documents that use terms like "stationery", "equipment", or "materials".

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Arman Liaghat

We Build AI Agents That Book +5 Highly qualified sales calls a day Inside of your company. | Companies with $1/000/000+ ARR only??Test the Agent??
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Keyword-based search operates primarily on the exact words or phrases that a user enters. For instance, if you search for "AI in healthcare," it will retrieve documents containing those specific words. This approach is straightforward but sometimes limited because it might miss out on documents that are relevant but don't use the exact keywords.

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Malar Natarajan

Senior Executive Administrator at FSS looking for a change in administration. immediately Open to work
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? Adversarial information retrieval. ? Automatic summarization. Multi-document summarization. ? Compound term processing. ? Cross-lingual retrieval. ? Document classification. ? Spam filtering. ? Question answering.

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2 Concept-based search

Concept-based search is a more advanced method of information retrieval that tries to overcome the limitations of keyword-based search. It involves understanding the meaning and context of your query and the documents, and finding documents that match your query based on the concepts or topics that they cover, rather than the exact words or phrases that they use. For example, if you search for "office supplies", you will get documents that are about office supplies, regardless of the specific terms or synonyms that they use. Concept-based search is more accurate and comprehensive, but it also requires more sophisticated and complex algorithms and technologies, such as natural language processing, semantic analysis, and machine learning.

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Dr. Benjamin Zingsem

Physics PhD, Hard- and Software Developer, Scientist, Data Expert, AI Developer, Lecturer/Coach, Nano Materials, Magnetism, Electron Microscopy, Microwave Technology, Strong Communication Skills, Leadership, Teamwork
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By focusing on the underlying concepts and meanings rather than just keywords, concept-based search can provide more accurate and relevant results. This approach leverages technologies like natural language processing and semantic analysis to understand context, making it especially valuable in scientific research, where keywords often have multiple meanings, and precision is crucial.

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Malar Natarajan

Senior Executive Administrator at FSS looking for a change in administration. immediately Open to work
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Information retrieval is the science of searching for information in a document, searching for documents themselves, and also searching for the metadata that describes data, and for databases of texts, images or sounds.

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3 How to choose between keyword-based and concept-based search

When deciding which type of search to use for your information retrieval needs, you should consider the scope and specificity of your query, the quality and quantity of documents, and the availability and accessibility of the tools. For instance, if you have a broad or general query, concept-based search may be more effective in retrieving a wider range of relevant documents. On the other hand, if you have a narrow or specific query, keyword-based search may be better in finding more precise and relevant documents. Additionally, if you have access to advanced information retrieval tools that support concept-based search, they can help to enhance your search experience and efficiency. Conversely, if you only have access to basic tools that support keyword-based search, they may be sufficient for performing your search tasks.

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Gerry Copitch

Development Director at MKAI | LinkedIn Top Voice
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The choice between keyword-based and concept-based search is crucial. Keyword searches are precise but struggle with synonyms and context. Concept-based searches delve deeper, capturing meaning and intent. A hybrid approach, combining both methods, is key for navigating the information landscape effectively. Keyword-based searches have long been the go-to method. However, a paradigm shift is underway towards concept-based search, promising more nuanced and precise results. The difference between keyword and concept-based search boils down to precision vs. context. Whilst keywords offer a straightforward path to information, concepts provide a deeper understanding. Mastering both techniques is essential.

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Malar Natarajan

Senior Executive Administrator at FSS looking for a change in administration. immediately Open to work
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With standard Keyword Search, people frequently experience “term mismatch,” where they use different terms to describe the same thing. Using concept searching, you can submit a query that is anywhere between a sentence to an entire document's length and return documents that contain the concept the query expresses.

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4 Tips and tricks for effective information retrieval

No matter what method you use for information retrieval, there are some tips and tricks to help you improve your search results and efficiency. Use specific keywords or concepts that match your information need and the documents you are searching for; avoid vague terms that may lead to irrelevant results. Quotation marks can be used to search for exact phrases, such as "office administration" or "information retrieval", narrowing down your results. Boolean operators (AND, OR, NOT) can also be used to combine or exclude keywords or concepts, such as "office administration AND information retrieval". Modifiers, like asterisks, parentheses, or brackets, can be used to expand or limit your keywords or concepts. Additionally, filters like date, format, or source can be used to sort or categorize your results. All of these tools will help you find more relevant documents.

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Malar Natarajan

Senior Executive Administrator at FSS looking for a change in administration. immediately Open to work
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1. Vary Your Search Engine. Search engines sort through about 240 million active websites to provide you with content. 2. Use Specific Keywords. 3. Simplify Your Search Terms. 4. Use Quotation Marks. 5. Remove Unhelpful Words. 6. Refine Your Search Using Operators. 7. Avoid Search Pitfalls.

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5 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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What is the difference between keyword-based and concept-based search in information retrieval?

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1 Keyword-based search

2 Concept-based search

3 How to choose between keyword-based and concept-based search

4 Tips and tricks for effective information retrieval

5 Here’s what else to consider

Office Administration

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What is the difference between keyword-based and concept-based search in information retrieval?

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1 Keyword-based search

2 Concept-based search

3 How to choose between keyword-based and concept-based search

4 Tips and tricks for effective information retrieval

5 Here’s what else to consider

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