Artificial intelligence

What is training data in AI?3 min read

14 February 2024


What is training data in AI?3 min read

Artificial Intelligence (AI) is a rapidly expanding field that has revolutionised many aspects of our daily lives and the daily life of companies in various sectors. From voice recognition to autonomous driving, through advances in medicine and education, AI is radically transforming the way we interact with technology and other people. But behind it lies a fundamental element, namely the training data.

This data represents the beating heart of any Artificial Intelligence model. It is the raw material on which algorithms are trained to make predictions and recognise patterns, from which AI will carry out operations and make decisions. Without quality training data, algorithms would not be able to learn and improve their performance over time. Let’s see in more detail what they are and why they are so important.

What Is Training Data For AI and Why Is It So Important?

Training data is “labelled” data that is used to instruct Artificial Intelligence models, or machine learning algorithms, to make appropriate decisions depending on different contexts.

Let’s take the example of an automated chatbot: if we are trying to create a customer service tool like this that is available 24 hours a day, the data could include all the different ways of asking “what is my account balance?” or “why can’t I log in to my account?” both in text and in audio, with the relevant sentence also translated into different languages.

Training data is of crucial importance for the success of any Artificial Intelligence model or project, but it must necessarily be organised in such a way as to be easily usable for AI systems. Without quality starting data, you won’t be able to get anywhere. We may have the most appropriate and advanced algorithm around, but if we train our machines with bad data, it will learn the wrong lessons, fall short of expectations, and not perform as expected. The success of an AI project, therefore, depends almost entirely on data.

The Quantity and Preparation of Data

Another crucial aspect of the training data is related to quantity. In general, the more training data you have available, the better the final output will be. However, it is important to note that it is not only the quantity of data that is important, but also its quality. A well-selected and labelled set of training data may be more effective than a larger but lower-quality set of data.

Furthermore, one of the main challenges in using training data is its collection and preparation. Collecting high-quality data can take a lot of time and resources, especially if the problem you are trying to solve is complex or previously poorly studied. Furthermore, it is often necessary to manually annotate the training data, i.e. add labels or metadata that correctly describe each example. This process can be laborious and in most cases requires human intervention. Once the training data has been collected and prepared in the correct manner, it will finally be possible to proceed with the model training phase, thus obtaining a result that is often of very high quality.


In summary, training data is crucial for the correct functioning of an AI tool, whether it is a tool for the production of texts, chatbots or images. To find out more about the various fields of application of this resource, discover the platform now: click here to activate your free trial.

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