What is esn?

esn has many meanings: 1. Electronic Serial Number, a parameter unique to each mobile device; 2. Emergency Service Number; 3. Echo status network ( Echo State Network).

esn has many meanings. This article will introduce them to you.

ESN (Electronic Serial Number)

Electronic Serial Number (English: Electronic Serial Number, abbreviation ESN), also known as ESN code, is stipulated by the Federal Communications Commission of the United States. Parameters unique to each mobile device (such as mobile phones, smartphones, tablets, etc.), uniquely identify a mobile device, and are 32 bits in length.

As early as 1980, when the analog mobile phone system was invented, it was already in use. After 1997, the United States Telecommunications Industry Association obtained the management and granting rights of ESN codes. ESN codes were initially used on AMPS and D-AMPS mobile phones, and are most common on CDMA mobile phones. Another common mobile phone code, IMEI (International Mobile Equipment Identity), is most commonly used on GSM mobile phones.

ESN (Emergency Service Abbreviation)

Emergency Service Number (ESN): A telephone number used for an emergency, such as a fire alarm number Number.

ESN (abbreviation of Echo State Network)

Echo State Network (Echo State Network, abbreviation ESN) is a new type of artificial neural network.

ESN is a new type of recursive neural network proposed by Jaeger in 2001. ESN has become a hot topic in academic circles as soon as it was proposed, and has been widely used in various fields, including dynamic pattern classification and robot control. , object tracking kernel, moving target detection, event monitoring, etc., especially in time series prediction problems, it has made outstanding contributions. In the second year after he proposed this kind of neural network, Jaeger himself published an article on using ESN network for time series prediction in an internationally renowned journal, making a huge contribution to its subsequent development. In addition, Han Min and others from Dalian University of Technology in China have also made outstanding contributions in the use of ESN.

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