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Cyclic redundancy check. A cyclic redundancy check ( CRC) is an error-detecting code commonly used in digital networks and storage devices to detect accidental changes to digital data. [ 1][ 2] Blocks of data entering these systems get a short check value attached, based on the remainder of a polynomial division of their contents.
Social profiling is the process of constructing a social media user's profile using his or her social data. In general, profiling refers to the data science process of generating a person's profile with computerized algorithms and technology. [ 1] There are various platforms for sharing this information with the proliferation of growing popular ...
The original information may or may not appear literally in the encoded output; codes that include the unmodified input in the output are systematic, while those that do not are non-systematic. A simplistic example of ECC is to transmit each data bit 3 times, which is known as a (3,1) repetition code. Through a noisy channel, a receiver might ...
The Facebook Platform is the set of services, tools, and products provided by the social networking service Facebook for third-party developers to create their own applications and services that access data in Facebook. [1] The current Facebook Platform was launched in 2010. [2] The platform offers a set of programming interfaces and tools ...
A negacyclic code is a constacyclic code with λ=-1. [8] A quasi-cyclic code has the property that for some s, any cyclic shift of a codeword by s places is again a codeword. [9] A double circulant code is a quasi-cyclic code of even length with s=2. [9] Quasi-twisted codes and multi-twisted codes are further generalizations of constacyclic ...
Example Name Notes App Clip Code: Apple-proprietary code for launching "App Clips", a type of applet. 5 concentric rings of three colors (light, dark, middle). [46] AR Code: A type of marker used for placing content inside augmented reality applications. Some AR Codes can contain QR codes inside, so that AR content can be linked to. [47] See ...
Preliminary name Final name Notes Ref Razzle NT OS/2, Advanced Windows Windows NT 3.1: Is also the name of a script that sets up the Windows NT development environment. NT OS/2 reflected the first purpose of Windows NT to serve as the next version of OS/2, before Microsoft and IBM split up. Microsoft used the NT OS/2 code to release Windows NT 3.1.
The first element of a CIRC decoder is a relatively weak inner (32,28) Reed–Solomon code, shortened from a (255,251) code with 8-bit symbols. This code can correct up to 2 byte errors per 32-byte block. More importantly, it flags as erasures any uncorrectable blocks, i.e., blocks with more than 2 byte errors.