Intro to data science on Google Cloud

While you likely know that data science is the practice of making data useful, you may not have a clear landscape around the tools that can aid each stage of the data science workflow as you use machine learning to tackle your challenges.

Read on to discover the six broad areas that are critical to the process of making data useful, and some corresponding Google Cloud products and services for those areas.

Data engineering 

Data ingestion and data preprocessing on Google Cloud

Data storage and data cataloging on Google Cloud

Learn more about data engineering on Google Cloud

• Explore the data engineering learning path
• Discover reference patterns
• Get certified by Google Cloud as a Professional Data Engineer

Data Analysis 

From descriptive statistics to visualizations, data analysis is where the value of data starts to appear.

Data exploration, data preprocessing, and data insights

Data exploration, a highly iterative process, involves slicing and dicing data via data preprocessing before data insights can start to manifest through visualizations or simply via simple group-by, order-by operations. One hallmark of this phase is that the data scientist may not yet know which questions to ask about the data. In this somewhat ephemeral phase, a data analyst or scientist has likely uncovered some aha-moments, but hasn't shared them yet. Once insights are shared, the flow enters the Insights Activation stage, where those insights become used to guide business decisions, influence consumer choices, or become embedded in other applications or services. 

On Google Cloud, there are many ways to explore, preprocess, and uncover insights in your data. If you are looking for a notebook-based end-to-end data science environment, check out Vertex AI Workbench, which enables you to access, analyze, and visualize your entire data estate: from structured data at the petabyte-scale in SQL with BigQuery, to processing data with Spark on Google Cloud and its serverless, auto-scaling, and GPU acceleration capabilities. As a unified data science environment, Vertex AI Workbench also makes it easy to do machine learning with TensorFlow, PyTorch, and Spark, with built-in MLOps capabilities.

Finally, if your focus is on analyzing structured data from data warehouses and insight activation for business intelligence, you may want to also consider using Looker, with its rich interactive analytics, visualizations, dashboarding tools, and Looker Blocks to help you accelerate your time-to-insight.

Learn more about data analysis on Google Cloud

• Learn about Vertex AI Workbench for a Jupyter-based fully managed notebook environment

• Learn about how you can use BigQuery for petabyte-scale data analysis

• Learn about Spark on Google Cloud

• Discover the data analyst learning path

• Explore reference patterns for common analytics use cases

Model development

From linear regression to XGBoost, from TensorFlow to PyTorch, the model development stage is where machine learning starts to provide new ways of unlocking value from your data. Experimentation is a strong theme here, with data scientists looking to accelerate iteration speed between models without worrying about infrastructure overhead or context-switching between tools for data analysis and tools for productionizing models with MLOps. 

To solve these challenges, once again, as a Jupyter-based fully managed, scalable, and enterprise-ready environment, Vertex AI Workbench makes it easy as the one-stop-shop for data science, combining analytics and machine learning, including Vertex AI services. Apache Spark, XGBoost, TensorFlow, and PyTorch are just some of the frameworks supported on Vertex AI Workbench. Vertex AI Workbench makes managing the underlying compute infrastructure needed for model training easy with the ability to scale vertically and horizontally, and with idle timeouts and auto shutdown capabilities to reduce unnecessary costs. Notebooks themselves can be used for distributed training and hyperparameter optimization, and they include Git integration for version control. Due to the significant reduction in context switching required, data scientists can build and train models 5x faster using Vertex AI Workbench than when using traditional notebooks. 

With Vertex AI, custom models can be trained and deployed using containers. You can take advantage of pre-built containers or custom containers to train and deploy your models.

For low-code model development, data analysts and data scientists can use SQL with BigQuery ML to train and deploy models (including XGBoost, deep neural networks, and PCA),  directly using BigQuery's built-in serverless, autoscaling capabilities. Behind-the-scenes, BigQuery ML leverages Vertex AI to enable automated hyperparameter tuning, and explainable AI. For no-code model development, Vertex AI Training provides a point-and-click interface to train powerful models using AutoML, which comes in multiple flavors: AutoML Tables, AutoML Image, AutoML Text, AutoML Video, and AutoML Translation.

Learn more about model development on Google Cloud

• Learn about Vertex AI Workbench for a Jupyter-based fully managed notebook environment

• Learn more about Vertex AI

ML engineering 

Once a satisfactory model is developed, the next step is to incorporate all the activities of a well-engineered application lifecycle, including testing, deployment, and monitoring. And all of those activities should be as automated and robust as possible.

Managed datasets and Feature Store on Vertex AI provide shared repositories for datasets and engineered features, respectively, which provide a single source of truth for data and promote reuse and collaboration within and across teams. Vertex AI’s model serving capability enables deployment of models with multiple versions, automatic capacity scaling, and user-specified load balancing. Finally, Vertex AI Model Monitoring provides the ability to monitor prediction requests flowing into a deployed model and automatically alert model owners whenever the production traffic deviates beyond user-defined thresholds and previous historical prediction requests.

MLOps is the industry term for modern, well engineered ML services, with scalability, monitoring, reliability, automated CI/CD, and many other characteristics and functions that are now taken for granted in the application domain. The ML engineering features provided by Vertex AI are informed by Google’s extensive experience deploying and operating internal ML services. Our goal with Vertex AI is to provide everyone with easy access to essential MLOps services and best practices.

Learn more about ML engineering and MLOps on Google Cloud

• Follow the guides, tutorials and documentation for Vertex AI

• Watch this video to learn more about Vertex AI

• Discover the data scientist/machine learning engineer learning path

• Get certified as a Professional ML Engineer

Insights activation 

The insights activation stage is where your data has now become useful to other teams and processes. You can use Looker and Data Studio to enable use cases in which data is used to influence business decisions with charts, reports, and alerts.

Data can also influence customer decisions and as a result increase usage or decrease churn, for example. Finally, the data can also be used by other services to drive insights; these services can run outside Google Cloud, inside Google Cloud on Cloud Run or Cloud Functions, and/or using Apigee API Management as an interface.  

Learn more about insights activation on Google Cloud

• Watch this video to learn about building interactive ML apps using Looker and Vertex AI

• Learn about Looker, and Looker solutions for eCommerce, Digital Media and more

• Discover a gallery of interactive dashboards created with Data Studio 

• Watch this video to understand the difference between Cloud Run and Cloud Functions

Orchestration 

All of the capabilities discussed above provide the key building blocks to a modern data science solution, but a practical application of those capabilities requires orchestration to automatically manage the flow of data from one service to another. This is where a combination of data pipelines, ML pipelines, and MLOps comes into play.  Effective orchestration reduces the amount of time that it takes to reliably go from data ingestion to deploying your model in production, in a way that lets you monitor and understand your ML system.

For data pipeline orchestration, Cloud Composer and Cloud Scheduler are both used to kick off and maintain the pipeline. 

For ML pipeline orchestration, Vertex AI Pipelines is a managed machine learning service that enables you to increase the pace at which you experiment with and develop machine learning models and the pace at which you transition those models to production. Vertex Pipelines is serverless, which means that you don’t need to deal with managing an underlying GKE cluster or infrastructure. It scales up when you need it to, and you pay only for what you use. In short, it lets you just focus on building your data science pipelines. 

Learn more about orchestration on Google Cloud

• Read more about Cloud Composer for Airflow-based pipelines

• Try some example notebooks on Github with Vertex AI Pipelines

• Learn different ways to trigger Vertex AI Pipeline runs

• Read the whitepaper on Practitioners Guide to MLOps: A framework for continuous delivery and automation of machine learning

Summary

Google Cloud offers a complete suite of data management, analytics, and machine learning tools to generate insights from data. Want to learn more? Check out the following resources:

• Building the data science driven organization from the first principles

Special thanks to the following contributors to this blogpost: Alok Pattani, Brad Miro, Saeed Aghabozorgi, Diptiman Raichaudhuri, Reza Rokni.