Technical Interview Questions
Map-reduce is a framework to process large data sets, splitting them into subsets, processing each subset on a different server and then blending results obtained on each. MapReduce is a programming model and framework for processing and generating large datasets in parallel across a distributed cluster of computers. It was popularized by Google and later … Read more
KPI: It stands for Key Performance Indicator, it is a metric that consists of any combination of spreadsheets, reports or charts about business process Design of experiments: It is the initial process used to split your data, sample and set up of a data for statistical analysis 80/20 rules: It means that 80 percent of … Read more
Tools used in Big Data includes Hadoop Hive Pig Flume Mahout Sqoop In the realm of Big Data, various tools and technologies are employed to store, process, analyze, and visualize massive volumes of data efficiently. Here’s a list of some commonly used tools: Hadoop: An open-source framework that facilitates distributed storage and processing of large … Read more
Collaborative filtering is a simple algorithm to create a recommendation system based on user behavioral data. The most important components of collaborative filtering are users- items- interest. A good example of collaborative filtering is when you see a statement like “recommended for you” on online shopping sites that’s pops out based on your browsing history. … Read more
A data scientist must have the following skills Database knowledge Database management Data blending Querying Data manipulation Predictive Analytics Basic descriptive statistics Predictive modeling Advanced analytics Big Data Knowledge Big data analytics Unstructured data analysis Machine learning Presentation skill Data visualization Insight presentation Report design