Big Data Concepts and Analysis

Flashcards covering key vocabulary and concepts related to Big Data, data usability, analysis methods, and data storage.

Big Data

Extremely large sets of data that cannot be easily managed or analyzed using traditional tools.

Usable Data

Data that is clean, well-organized, and accessible, easily understood and processed.

Useful Data

Data that is relevant, timely, and appropriate for solving a specific problem or answering a question.

Structured Data

Organized data formatted into rows and columns, such as spreadsheets and databases.

Unstructured Data

Data that has no predefined format, like emails, images, and social media posts.

Data Extraction

The process of pulling specific, meaningful information from raw or unstructured data.

Metadata

Data about data; information that helps in organizing, finding, and understanding stored data.

Data Persistence

The ability of data to be saved and retained over time, even after a program or device is shut off.

PII

Personally Identifiable Information; data that can identify a person, such as name or social security number.

Descriptive Analysis

Analysis that summarizes what happened, with high confidence but low future utility.

Predictive Analysis

Estimates what might happen, with moderate confidence and medium utility.

Prescriptive Analysis

Suggests actions based on data, with lower confidence but high decision-making utility.

Classification

A data mining strategy that assigns data to predefined categories.

Clustering

A data mining strategy that groups similar data points based on features.

Regression

A predictive analysis method that predicts continuous values based on trends.

Model

A simplified representation of a system used to understand complex systems and predict outcomes.

Simulation

Dynamic models that allow testing in virtual environments safely and cost-effectively.

Web Scraping

Method of automatically extracting data from the visual content of websites.

Screen Scraping

A process that captures data from the display output of a computer program.