How to Create Training Data for Machine Learning?

September 13, 2018 No Comments Machine Learning Cogito

Training data sets are the key ingredients for machine learning to build a well-organized functional model that can work with highest relevancy and give the accurate results. And it is very hard to find such training data that can fit into your demand for machine learning. In this blog we shall discussed how we can create training data for machine learning with simple process and other alternates to gather such data at affordable cost.

How to Build Training Data Set?

To build a functional model you have to keep in mind the flow of operations involved in building a high quality dataset. To solve a particular problem in respect of the same, the data should be accurate and authenticated by specialist. Just take an example if you want to determine the height of a person, then other features like gender, age, weight or the size of clothes are among the other factors considered seriously.

In this example, the clothes, weight and height of person is important while color and fabric material will not add any value as a training data. Such irrelevant have very little weightage while predicting the height of person and as per the machine learning golden rules, the larger the data the results would be better helps to create the robust models.

 Create Training Datasets - Machine learning

Selection of Training Data

The first step towards creating machine learning data sets is selecting the right data sets with right number of features for particular datasets. Moreover, the data should be reliable and should have least number of missing values, because more than 25 to 30% missing values is not considerable during the training of machines. However, in certain conditions, there are instances where the relationship between this feature and the Y feature is high. In such cases, you have to manually imputed and handle the missing values to get better results.

For an example, if an organization has borrowed loan from the bank, and feature containing a value like GDP of country is available with only 30% missing values. If this particular feature has very high weightage to predict the institution is able to repay the loan or not then this feature need to be considered with high priority. While, if this feature don’t have any importance in developing the AI-model,then there is no need to include such data.

Processing of Training Data

Once you have selected the right data the processing of data also involves selection of the right data from the complete data set and building a training set and the entire process is given here step-by-step to process the training data service.

Organize and Format: As, the data can be distributed into different files or folders, so you need to find the relation between the datasets and preprocess to form a dataset of required dimensions. And data also need to be transformed into universal language before organizing into a particular format.

Cleaning of Data: This is one of the most important stage in data processing where you have to remove unwanted characters from the data and cleaning of the missing values. The missing values can be removed or replaced and if there are such missing values it can be replaced or removed to get more accurate results.

Extraction of Features: This stage involves the process of analysis and optimization of the number of features. Here you have to find out which features are important for prediction and select them for faster computations and low memory consumption. For an example if you are dealing with image classification, then remove all the irrelevant images.

Conversion of Training Data

After data selection and processing, you have to convert the data into a meaningful datasets. The data conversion process also involves several steps that are discussed below.

Scaling: It is very essential when dataset is placed while considering the linear data set like bank data. If the feature containing the transaction amount is important, then data has to be scaled in order to build a robust model. To perform this action, Correlation matrix, the Pearson method is used to find the relationship between such things. If data is not scaled by definite values this might lead to a misunderstanding of the data.

Disintegration and Composition: This step involves the breakup of particular feature to build a better training data for the model you understand more comprehensively. Splitting of time-series feature is one of the best example of data disintegration in which you can extract the days, months, year, hour, minutes, seconds, etc. from a particular sample.Separating and processing of such features may result in better accuracy to get a better output.

Composition: This is the last process involves combining of different features into a single feature to get the more accurate or meaningful data. The composition of data sets combined with different features can be said a true or high-quality data sets that can be used for machine learning. The more the data accurate the predictions would be also precise.


In this blog you will get to know how to create training data for machine learning with step-by-step process. It will help you to understand how processed training set helps machine learning as a service to develop the relationship between the features. However, the entire process consumes lots of time and required in-depth analysis and examination of the data to get best results. As, a well-classified and well-organized datasets helps machine learning models to train the models at faster rate and get the robust results in different scenarios.

How to Get Training Data for Machine Learning?

Nevertheless, if you don’t have time or enough facilities to create the training data for machine learning you can get such data from companies providing training data at affordable pricing. And if you are looking for machine learning training data companies get in touch with Cogito that offers best quality training datasets for machine learning and AI-oriented models required to train with such data and develop a functional model or useful business application. Cogito will give you the accurate and most relevant amount of data at lowest cost while ensuring the quality to help you to train your AI-enabled machines work with promising results.

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