Techtalks: Data Science
About Data Science
Data is no longer a trend or a buzzword, it’s a part of the growth strategy for every business. Machine Learning, Artificial Intelligence, Business Intelligence, Big Data – these tools help us analyze the past, understand the present, and look into the future with unmatched accuracy. Join the Techtalks community to explore these possibilities, find answers to your questions, and share your experience with others.
What is the difference between OLAP database and relational database?
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Zaid md
answered Mar 18, 2022
Relational Database (RDBMS)
- RDBMS is a DBMS that enables the organization of aggregated data.
- Relational DBMS is the most widely used database like Oracle, SQL Server. It is characterized by handling data in tables with basic keys that make it possible to identify the rows in each table separately. And an external key that allows you to associate the table with other tables.
OLAP (Online Analytical Processing)
- OLAP is a collection of software tools that provide information to business decision-makers.
- OLAP usually works on a standardized database to facilitate OLAP, not OLTP. These databases are often referred to as data warehouses.
- You can check the comparison and key differences between OLAP vs OLTP here
Is there any free open source image recognition API?
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anonymous
asked Jun 14, 2021
What is data profiling in ETL?
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Zaid md
answered Mar 18, 2022
Data Profiling in ETL
The ETL data source is a collection of detailed data. It seeks to understand the structure, value, and significance of information and its relation to other information. This is done through Extraction, Conversion, and Upload (ETL) and helps companies find the information they need for their purposes.
How much training data is required for machine learning?
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anonymous
asked Nov 12, 2021
Is it possible to use unsupervised learning for labeled data?
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anonymous
asked Oct 29, 2021
What is the cost of RPA certification?
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anonymous
asked Apr 4, 2022