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Home Articles

What is Data Science Life Cycle?

by Kiranlal VT
December 27, 2022
in Articles, Data Science and Machine Learning, Entri Skilling
What is Data Science Life Cycle?
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Data is gathered from many industries, channels, and platforms, such as cell phones, social media, e-commerce sites, healthcare surveys, and internet searches. The growth in data availability paved the way for a new field of research focused on big data-massive data sets that contribute to the development of improved operational tools across all industries. Advances in technology and data-gathering techniques enable ever-increasing access to data. Individual purchasing patterns and behavior can be tracked and predictions made based on the data acquired. However, the growing volume of unstructured data needs processing for efficient decision-making. This procedure is difficult and time-consuming for businesses, which is why data science has emerged.

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Since the early 1960s, when it was used interchangeably with “computer science,” the phrase “data science” has been in use. Later, the phrase was expanded to include a study of data processing methods used in a variety of applications. William S. Cleveland coined the phrase “data science” to refer to a distinct subject for the first time in 2001. Data science is a branch of applied mathematics and statistics that generates meaningful knowledge from vast volumes of complicated data, sometimes known as big data. Data science, also known as data-driven science, integrates characteristics of many areas with the use of computing to evaluate massive amounts of data for decision-making purposes. Machine learning and artificial intelligence are two methodologies used in data science to extract relevant information and forecast future patterns.

Lifecycle of Data Science

A data science life cycle is a series of iterative data science processes that you follow to complete a project or investigation. Because each data science project and team are unique, so is each data science life cycle. Most data science initiatives, however, follow the same fundamental life cycle of data science activities. Some data science life cycles concentrate just on the data, modeling, and assessment stages. The Data analytics lifecycle was created to deal with Big Data issues and data science initiatives. The procedure is repeated to display the actual projects. To meet the special needs of Big Data analysis, a step-by-step approach is necessary to organize the numerous activities connected with data capture, processing, analysis, and recycling.

1. Discovery

The data science team is trained and researches the problem. Construct context and achieve comprehension. Learn about the data sources that the project will require and have access to. The team develops an initial hypothesis that can subsequently be validated by evidence.

2. Data Preparation

Methods for investigating the potential for data pre-processing, analysis, and preparation before analysis and modeling. A sandbox for analytics is necessary. To deliver information to the data sandbox, the team conducts, loads, and transforms. Data preparation tasks can be repeated in an arbitrary order.

3. Model Planning

The team examines data to determine the relationships between variables. It then chooses the most important factors as well as the most successful models. During this phase, data science teams develop data sets that may be utilized for testing, production, and training purposes. Based on the work accomplished during the modeling planning phase, the team designs and executes models.

4. Model Building

The team develops datasets for training, testing, and production use. The team is also determining if its present tools are adequate for running the models or if a more robust environment is required.

5. Communication Results

Following the model’s execution, team members must analyze the model’s outcomes to develop criteria for the model’s success or failure. The team is exploring how to best deliver results and conclusions to team members and other stakeholders while keeping cautionary stories and preconceptions in mind. The team should identify the most relevant results, estimate their commercial value, and develop a narrative to communicate and explain the findings to all stakeholders.

6. Operationalize

The team disseminates the project’s advantages to a larger audience. It establishes a prototype project to deliver the work in a controlled manner before spreading the project to the complete business of users. This method enables the team to obtain insight into the model’s performance and restrictions in a small-scale production context and then make required improvements before full deployment.

Data Science Lifecycle

A data science life cycle is a series of iterative data science processes that you follow to complete a project or investigation. Because each data science project and team are unique, each data science life cycle is unique. Most data science initiatives, however, follow the same fundamental life cycle of data science activities. Some data science life cycles concentrate just on the data, modeling, and assessment stages. Others are more in-depth, beginning with business insight and ending with deployment. The Data Science Life Cycle begins with the identification of a problem or challenge and ends with the provision of a solution. A Data Science Life Cycle is a precise technique that contains five critical parts, beginning with data collection and ending with analysis and result presentation. Let us look into these parts:

  • Understanding Problem

Understanding the problem is one of the most important steps in any data science endeavor. Before you can set project goals, you must first understand the problem or question you are seeking to solve. In some cases, determining the problem is straightforward. The consumer may make a specific request at times, while others may ask you to fix a broad problem. In these instances, the first step is to establish specific goals and challenges.

  • Getting Data

The second step is to collect meaningful information from various data sources. This necessitates the collection of all available information. You may discover more about the available data, what data can be utilized to address the problem, and other specifics if you interact with the company’s personnel. The data must be explained, including its nature, relevance, and organization. To examine the data, visual charts are employed.

  • Cleaning Data

The following stage is to clean the data, which refers to data cleaning and filtering. This technique necessitates data translation into a new format. It is required for information processing and analysis. If the files are web locked, the lines of these files must also be filtered. Cleaning data also comprises deleting and replacing values.In the event of missing data sets, the replacement must be done correctly because they may appear to be non-values. Additionally, columns are divided, combined, and removed.

  • Exploring Data

The data must now be evaluated before it can be used. It is entirely up to the Data Scientist in a company environment to turn the given data into something usable in a corporate setting. This is why data exploration should be the initial step. The data and its qualities must be examined. It is because different data kinds, such as nominal and ordinal data, numerical data, and categorical data, require distinct treatment.

  • Modeling Data

Following the critical steps of data cleansing and exploration, follows the modeling phase. It is sometimes regarded as the most intriguing stage of the Data Science Life Cycle. The initial step in data modeling is to reduce the dimension of the data collection. Every value and characteristic is not required for outcome prediction. At this point, the Data Scientist must select the crucial attributes that will directly improve the model’s prediction.

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Wrapping up

There are several data science life cycles from which to pick. Most describe the same essential procedures required to complete a data science project, but from a different perspective. This life cycle emphasizes the requirement for agility as well as the larger data science product life cycle.

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Kiranlal VT

Kiranlal VT

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