Big data "Big data"

Vocabulary.

Statistical power-The power of any test of statistical significance is defined as the probability that it will reject a false null hypothesis. 

Internet-A web search engine or Internet search engine is a software system that is designed to carry out web search, which means to search the World Wide Web in a systematic way for particular information specified in a textual web search query. 

Relational database-is a digital database based on the relational model of data, as proposed by E. F. Codd in 1970. A software system used to maintain relational databases is a relational database management system (RDBMS). 

Wireless sensor network (WSN) refers to a group of spatially dispersed and dedicated sensors for monitoring and recording the physical conditions of the environment and organizing the collected data at a central location. 

Urban informatics refers to the study of people creating, applying and using information and communication technology and data in the context of cities and urban environments.