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Did you know that dozens of different operations happen with datasets before you can create something as simple as a graph? Behind the scenes, data preparation, data integration, validation, and more happen so you have clean data that can be turned into insights you can understand.
This all starts with something called a data science pipeline. Today, we’ll explain what it is, why it’s important, and what makes it different from similar terms in data engineering.
A data science pipeline is a series of processes that data scientists collect, process, analyze, visualize, and interpret data and derive insights from it. It’s a structured process that helps them go from raw data to information someone else can use for decision-making.
Having a well-established data science pipeline workflow makes sure that data projects are consistent, efficient, and scalable.
Your specific data science pipeline will depend on your business requirements and the complexity of your data science projects. However, most of them have similar steps.
Data is collected from various sources, including data warehouses, APIs, business tools, or web scraping apps.
Incomplete, irrelevant, and unstructured data is cleaned and formatted properly so there are no issues with processes like exploratory data analysis later on. Missing values are added to unstructured data.
Data is transformed into a format that is suitable for analysis later on. At this point, data goes through normalization, aggregation, or encoding categorical variables.
Data distributions and relationships are explored, typically through data visualization such as graphs, dashboards, and reports. This allows even end users who are not familiar with data analytics to understand the relationships between data points.
New variables are created or existing ones are modified to improve the performance of the model and get essential information.
Machine learning algorithms are selected and trained to make predictions or classify data.
Assessing how accurate the model is and how it performs based on metrics such as precision, recall, or F1 score.
The model is deployed in a real-life production environment where it can be used across apps and different platforms in various use cases.
The model performance is tracked continuously so you can make adjustments and ensure it stays accurate over time.
Through the automation and optimization of these processes, data-driven companies can speed up the time it takes to go from raw data to actionable insights.
A data science pipeline and an ETL (extract, transform, load) pipeline revolve around data processing but have different purposes, structures, and stages.
Data science pipeline focuses on the entire process of developing and deploying machine learning models, from collecting data from various data sources, cleaning and evaluating it.
ETL pipelines are concerned with moving data from source systems to a centralized data storage system such as a data lake or a data warehouse, for analysis or reporting.
A data science pipeline typically consists of nine different stages, as outlined above. Data exploration, feature engineering, and others. It’s specifically designed to support the machine learning and data science lifecycle.
The stages involved in ETL are fairly simple: Extract, Transform, and Load.
The end product of a data science pipeline is a machine learning model or analytical insight that can be used for decision making or integrated into a product.
The end product of an ETL pipeline is a dataset, usually stored in a data warehouse, ready for querying, exporting, analysis, visualization, and interpretation.
A data science pipeline is typically more complex because of the iterative nature of machine learning models. It’s also more flexible to accommodate the different needs of data analysts and to adapt to changes of models or data sources.
ETL pipelines are straightforward and more linear, focusing on moving and transforming data without requiring iterative processes.
Tools commonly used for creating a data science pipeline include Python, TensorFlow, Scikit-Learn, Jupyter Notebooks, and cloud platforms for deploying models, such as AWS Sagemaker.
ETL processes typically use ETL tools such as Talend, Apache NiFi, Informatica or cloud services such as AWS Glue. In the end, data is stored in warehouses such as Google BigQuery or Amazon Redshift.
Data science pipelines require real-time data processing, especially in industries where time is of the essence, such as fraud detection in finance.
ETL pipelines usually function in batch processing mode, where large amounts of data are moved at intervals, such as hourly or daily. However, some ETL pipelines also function in real time.
Data science pipelines have significant benefits for anyone in data analytics and engineering, and eventually for the end-users using tools such as artificial intelligence and natural language processing to explore data on their terms. Here are a few more upsides of data science pipelines.
Efficiency and automation: time-consuming and repetitive tasks can be automated, which allows data scientists to focus on more complex analyses. Once a clear workflow is established, new data can get through the pipeline more easily, eliminating the need for intervention.
Consistency and reproducibility: pipelines enforce a standardized approach to data processing and data modeling, which ensures that the same procedures are applied to all types of data. And when each step is properly documented and automated, it can be reproduced without fear of error.
Scalability: data science pipelines can handle large volumes of data, which supports end-to-end data analytics needs as your organization grows. They can also be modified and adapted to include new data sources, models, or analytics technologies.
Error reduction and quality assurance: pipelines reduce manual intervention, which in turn minimizes chances for error. The data quality is consistently high, which is crucial for accurate data modeling and relevant insights.
Easier collaboration: a data science pipeline that is defined well can be understood by multiple team members, making it easier to work in real-time as well as onboard new team members.
Faster deployment and iteration: deploying models and regularly updating them becomes easier with a good data science pipeline. You also introduce a continuous cycle of monitoring, evaluation and retraining, which makes sure that models are constantly updated and improved.
Data science pipelines can be used across different industries, with various sources of data and end goals.
In healthcare: for predictive analytics, to analyze patient data, medical histories, and real-time data monitoring to predict patient outcomes, prevent readmissions, and improve treatment plans.
In finance: for fraud detection, risk assessment, and algorithmic trading. You can use data science pipelines to identify patterns in real time and spot fraud attempts, and potential risks and execute trades based on market trends.
In retail and e-commerce: to segment customers based on purchase behavior, do inventory management based on historical trends, and implement recommendation systems by analyzing user interactions and preferences.
In manufacturing: to do preventative maintenance based on historical records, to do quality control for defects and inefficiencies, as well as optimize your supply chain based on demand forecasts and past performance.
Data science pipelines are the foundation for accurate and timely data analysis. Once you’ve taken care of this crucial step, you can visualize and analyze your data, and this is where Luzmo comes in.
We specialize in helping software companies provide analytics capabilities to their end-users. They don’t need to be data scientists to analyze and visualize data. Simply add an embedded analytics dashboard to your platform and watch as your customers unlock the power of data in seconds.
Don’t take our word for it - grab a free demo and see how Luzmo fits into your data analytics strategy.
Experience the power of Luzmo. Talk to our product experts for a guided demo or get your hands dirty with a free 10-day trial.
