In connection-oriented communication, a data stream is a sequence of digitally encoded coherent signals (packets of data or data packets) used to transmit or receive information that is in the process of being transmitted. A data stream is a set of extracted information from a data provider. It contains raw data that was gathered out of users' browser behavior from websites, where a dedicated pixel is placed. Data streams are useful for data scientists for big data and AI algorithms supply. The main data stream providers are data technology companies.