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MLOPs Series – Part 1

Jai Vardhan Rao
Analytics Consultant

 

Introduction to MLOps

Machine learning – a tech buzz phrase that has been at the forefront of the tech industry for years. It is almost everywhere, from weather forecasts to the news feed on your social media platform of choice. It focuses on developing computer programs that can acquire data and “learn” by recognizing patterns and making decisions with them.

Although data scientists build these models to simplify and make business processes more efficient, their time is, unfortunately, split and rarely dedicated to modeling. In fact, on average, data scientists spend only 20% of their time on modeling; the other 80% is spent on the machine learning lifecycle.

Building

This exciting step is unquestionably the highlight of the job for most data scientists. This is the step where they can stretch their creative muscles and design models that best suits the application’s needs. This is where Tredence believes that data scientists ought to spend most of their time to maximize their value to the firm.

Data Preparation

Though information is easily accessible in this day and age, there is no universally accepted format. Data can come from various sources, from hospitals to IoT devices; to feed the data into models, sometimes, transformations are required. For example, machine learning algorithms generally need data to be numbers, so textual data may need to be adjusted. Statistical noise or errors in data may also need to be corrected.

Model Training

Training a model means determining good values for all the weights and bias in a model. Essentially, the data scientists are trying to find an optimal model that can minimize loss – an indication of how badly the prediction is performed on a single example.

Parameter Selection

During training, it is necessary to select some parameters that will impact the prediction of the model. Although most are selected automatically, some subsets cannot learn and require expert configuration. These are known as hyperparameters. Experts trying to configure hyperparameters have to implement various optimization strategies to tune the hyperparameters.

Transfer Learning

It is quite common to reuse machine learning models across various domains. Although models may not be directly transferrable, some can serve as excellent foundations or building blocks for developing other models.

Model Verification

At this stage, the trained model will be tested to see if the validated model can provide sufficient information to achieve its intended purpose. For example, when the trained model is presented with new data, can it still maintain its accuracy?

Deployment

At this point, the model has been thoroughly trained & tested and has passed all requirements. The step aims to use this model for the firm and ensure that it can continue to perform with a live stream of data.

Monitoring

Now that the model is deployed and live, many businesses generally consider the process to be final. Unfortunately, this is far from reality. Like any tool, the model will wear out after use. If not tested regularly, it will provide irrelevant information. To make matters worse, since most machine learning models work in a “black box,” they lack the clarity to explain the model’s predictions, making the predictions challenging to defend.

Without this entire process, models would never see the light of day. That said, the process often weighs heavily on data scientists, simply because many steps require direct actions on their end. Enter MLOps.

MLOps (Machine Learning Operations) is a set of practices, frameworks, and tools that combines Machine Learning, DevOps, and Data Engineering to deploy and maintain ML models in production reliably and efficiently. MLOps solutions provide Data engineers, scientists, and engineers with the necessary tools to make the entire process a breeze. Next time, find out how Tredence Engineers have developed a tool that targets one of these steps to make the lives of data scientists’ easier.

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