How to Choose: Reasoning vs. Search Engines for Best Results

In this blog post, we will explore when to use reasoning engines or search engines to achieve the best possible outcome for your queries.

What are Reasoning Engines

Reasoning engine is a system that can infer new facts from existing knowledge, using logical rules and algorithms. It is also known as a reasoner, semantic reasoner, or rules engine. Additionally, it is a software component that can perform logical inference on a given set of facts and rules. It can answer queries, make recommendations, and solve problems based on the knowledge it has. A reasoning engine learns also from new data and update its knowledge base accordingly.

Some examples of reasoning engines are:

  • Cyc inference engine: a forward and backward chaining inference engine with numerous specialized modules for high-order logic.
  • RDFox: a highly-optimised in-memory knowledge graph and semantic reasoning engine that can handle massive data sets and infer new knowledge based on rules.
  • Drools: a forward-chaining inference-based rules engine which uses an enhanced implementation of the Rete algorithm.

Reasoning engines are often used for applications such as artificial intelligence, knowledge representation and reasoning, semantic web, and expert systems. They can help to provide accurate, consistent, and explainable results based on data and logic. Reasoning engine such as the ChatGPT and Bing are the most common these days.

What is Search Engine

A search engine is a software that searches a database of information according to the user’s query. The engine provides a list of results that best match what the user is trying to find. Today, there are many different search engines available on the Internet, each with its own abilities as well as their unique features. To name a few, the first search engine ever developed is considered Archie, which was used to search for FTP (file transfer protocol) files, and the first text-based search engine is considered Veronica. Most popular search engines include:

  • Google
  • AOL (America Online)
  • Baidu
  • Bing
  • DuckDuckGo
  • Yahoo
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In addition to the above, there are several other search engines that cater to specific needs and interests of users. These include academic search engines like Google Scholar, medical search engines like PubMed, and job search engines like Indeed.

Reasoning Engine or Search Engine?

Search engines and reasoning engines serve different purposes. Search engines quickly find specific details but have limitations. Reasoning engines specialize in analyzing data, recognizing patterns, and drawing conclusions. They handle complex tasks better than search engines. Search engines excel at quickly finding specific information than reasoning engines. They are ideal for tasks like finding a phone number or answering trivia questions. However, they struggle with complex tasks such as analyzing large datasets or making predictions based on available data. Reasoning engines, on the other hand, are explicitly designed for these sophisticated tasks. They can scrutinize data, recognize patterns, as well as draw informed conclusions. Beyond data analysis, reasoning engines possess the ability to learn and adapt over time also. This particular characteristic sets them apart from search engines that rely on fixed algorithms as well as databases for generating results.

Search Engines:


  • Quick retrieval of specific pieces of information.
  • Perfect for tasks such as searching for contact details or uncovering answers to trivia questions, a search engine excels in these quick information retrievals.
  • Efficient for straightforward, well-defined queries.
  • Reliance on pre-existing algorithms and databases ensures fast results.


  • Limited effectiveness in analyzing large datasets.
  • Despite its efficiency in retrieving information, a search engine faces limitations, such as the inability to draw complex conclusions or make predictions based on data.
  • Additionally, it lacks adaptability, relying on fixed algorithms without learning capabilities.
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Reasoning Engines:


  • Designed for analyzing data, identifying patterns, and drawing conclusions.
  • Effective in handling complex tasks such as data analysis and predictive modeling.
  • Ability to learn and adapt over time, improving accuracy with exposure to more data.
  • Well-suited for tasks requiring critical thinking and inference.


  • May have a longer response time compared to search engines for simple queries.
  • Complexity and resource-intensive nature may limit real-time processing for certain applications.
  • Dependence on continuous exposure to data for ongoing learning and improvement.

Choosing between a search engine and a reasoning engine hinges on the nature of the task. If you need a quick answer to a specific question, a search engine is likely the better choice. However, for tasks involving data analysis, predictions, or drawing conclusions, a reasoning engine proves to be a more potent tool. Ultimately, the decision between these engines depends on the specific task and the objectives you aim to achieve.

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