Components of an information retrieval system

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Now we know what information retrieval is and how it works. Let's break down the key blocks of an IR system. →

1. Database
It all starts with the database. It's a collection of interrelated data points, such as text documents, emails, web pages, images, and videos. When you enter a query , the RI system searches through these database comparisons to retrieve the most relevant information for your needs.

2. Indexer
Before the system can retrieve anything, the indexer organizes the data. It's like preparing a hong kong whatsapp number data library catalog to make searching faster. The indexer processes documents by:

Tokenization: Breaks content into smaller pieces, such as sentences into words or phrases (called tokens)
**Simplifying words to their base form (e.g. "run" becomes "correr")
**Removing filler words: Omitting filler words such as "and", "or", and "the" to focus on the main query
Keyword Extraction: Identifying the main keywords in the text
Metadata Extraction: Obtaining additional details such as author, publication date, or title
3. Search interface
The search interface acts as the gateway to the RI system. This is where you type in your query using simple keywords or more detailed filters. Designed to be user-friendly, it ensures that you can easily communicate your information access needs and get the relevant results you are looking for.

4. Query processor
Once you hit “find,” the query processor takes over. It refines the data by applying the techniques listed in the indexer section. Additionally, it also handles boolean operators like “AND,” “OR,” and “NOT” to make your query smarter.