What is the work of a Data Scientist?


work-of-data-scientist





Work of Data Scientist

1. Goal of Data Scientist

  1. The data scientist works with business stakeholders to define goals and objectives for the analysis. 
  2. These goals can be defined specifically, such as optimizing an advertising campaign, or broadly, such as improving overall production efficiency.


2. Data Collection

  1. Data collection is one of the most important responsibilities of a data scientist. 
  2. It involves gathering relevant data from various sources for analysis and modeling.
  3. Effective data collection is essential for generating valuable insights and making informed decisions in data science projects. 
  4. It requires careful planning, attention to detail, and a systematic approach to gathering, cleaning, and managing data effectively.
  5. When data collection and storing systems are not in place, the data scientists establish a systematic process for data collection.


Data Integration & Management

  1. The data scientist applies best data integration practices to transform raw data into clean information, that’s ready for analysis.
  2. Data integration and management process involves data replication, ingestion, and transformation to combine different types of data into standardized formats which are then stored in a repository such as a data lake or data warehouse.


4. Data Investigation & Exploration

  1. In this step, the data scientist performs an initial investigation of the data and exploratory data analysis. 
  2. Data investigation and exploration involve understanding and analyzing a dataset to uncover patterns, relationships, and insights.
  3. It includes tasks like calculating summary statistics, visualizing data with charts and graphs, identifying outliers, and cleaning the data to prepare it for analysis. 
  4. These steps help data scientists gain a deeper understanding of the data and inform further analysis and decision-making.
  5. This investigation and exploration is typically performed using a data analytics platform or business intelligence tool, such as Tableau or Power BI.


5. Model Development

  1. Based on the business objective and the data exploration, the data scientist chooses one or more potential analytical models and algorithms. 
  2. Then build these models using languages such as SQL, R, or Python and apply data science techniques, such as machine learning, statistical modeling, and artificial intelligence. 
  3. Then the models are "trained" via iterative testing until they operate as required.


6. Model Deployment and Presentation

  1. Once the models have been selected and refined, they are run using the available data to produce insights. 
  2. These insights are then shared with all stakeholders using sophisticated data visualization and dashboards. 
  3. Based on feedback from stakeholders, the data scientist makes any necessary adjustments to the model.