Thursday, 30 November 2023

Natural Language Text Generation: An Overview of the Techniques and Applications for Generating Natural Language Text

09 Mar 2023

At its core, Natural Language Text Generation (NLG) is the process of converting structured data into human-readable language. NLG is a subset of Artificial Intelligence (AI) that involves the automatic generation of natural language text that can convey information in a way that is similar to human-written text. In this article, we will provide an overview of the techniques and applications for generating natural language text.

NLG Techniques

NLG techniques can be broadly classified into two categories: rule-based and machine learning-based. Rule-based techniques use sets of pre-defined rules that specify how to generate text based on input data. These rules can range from simple templates to more complex grammatical rules. On the other hand, machine learning-based techniques use algorithms to learn from existing data and generate text based on patterns in that data.

Rule-Based NLG

Rule-based NLG systems are simple and straightforward to implement. They rely on a set of pre-defined templates that generate text based on input data. These templates are essentially pre-built structures that can be filled in with the relevant data to generate text. While rule-based NLG systems are relatively easy to build, they are limited in terms of their flexibility and ability to generate unique content.

Machine Learning-Based NLG

Machine learning-based NLG systems, on the other hand, are more complex and require larger amounts of data to train. These systems rely on algorithms that learn from existing data and use that learning to generate new text. The advantage of machine learning-based NLG systems is their ability to generate unique content that is not restricted by pre-defined templates. However, they require more computing power and resources to train and implement.

Applications of NLG

NLG has a wide range of applications, from automating report generation to chatbots and virtual assistants. Some of the most common applications of NLG are:

  1. Automated Report Generation: NLG can be used to automate report generation in fields such as finance, healthcare, and marketing. For example, an NLG system can be used to automatically generate financial reports based on data inputs such as revenue, expenses, and cash flow.
  2. Chatbots and Virtual Assistants: NLG can be used to create chatbots and virtual assistants that can interact with users in natural language. These systems can be used to answer customer queries, book appointments, and perform other tasks.
  3. E-Commerce Product Descriptions: NLG can be used to generate product descriptions for e-commerce websites. These descriptions can be tailored to the specific product and can help improve search engine rankings.
  4. Content Creation: NLG can be used to generate content for websites and blogs. While the quality of the content generated by NLG systems may not be as high as human-written content, it can be a useful tool for generating large amounts of content quickly.


Natural Language Text Generation (NLG) is an exciting field of Artificial Intelligence (AI) that has many applications in various fields. The techniques used in NLG are continuously evolving, with machine learning-based techniques becoming more prevalent. NLG systems can be used to automate report generation, create chatbots and virtual assistants, generate e-commerce product descriptions, and create content for websites and blogs. With the increasing use of NLG in various industries, it is essential to stay up-to-date with the latest developments and techniques in this field.