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2. QR code - Wikipedia

   en.wikipedia.org/wiki/QR_code

   The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. [5] [6] [7] The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; [8] the pattern of position detection was found and determined by applying the least-used ratio (1:1:3 ...

3. List of Facebook features - Wikipedia

   en.wikipedia.org/wiki/List_of_Facebook_features

   Listen with Friends. Listen with Friends allows Facebook users to listen to music and discuss the tunes using Facebook Chat with friends at the same time. Users can also listen in as a group while one friend acts as a DJ. Up to 50 friends can listen to the same song at the same time, and chat about it.

4. QR algorithm - Wikipedia

   en.wikipedia.org/wiki/QR_algorithm

   In numerical linear algebra, the QR algorithm or QR iteration is an eigenvalue algorithm: that is, a procedure to calculate the eigenvalues and eigenvectors of a matrix. The QR algorithm was developed in the late 1950s by John G. F. Francis and by Vera N. Kublanovskaya, working independently. [1] [2] [3] The basic idea is to perform a QR ...

5. fastText - Wikipedia

   en.wikipedia.org/wiki/FastText

   fastText is a library for learning of word embeddings and text classification created by Facebook's AI Research (FAIR) lab. [3] [4] [5] [6] The model allows one to ...

6. QR decomposition - Wikipedia

   en.wikipedia.org/wiki/QR_decomposition

   QR decomposition. In linear algebra, a QR decomposition, also known as a QR factorization or QU factorization, is a decomposition of a matrix A into a product A = QR of an orthonormal matrix Q and an upper triangular matrix R. QR decomposition is often used to solve the linear least squares (LLS) problem and is the basis for a particular ...

7. List of criminal enterprises, gangs, and syndicates - Wikipedia

   en.wikipedia.org/wiki/List_of_criminal...

   The following is a listing of enterprises, gangs, mafias, and criminal syndicates that are involved in organized crime.Tongs and outlaw motorcycle gangs, as well as terrorist, militant, and paramilitary groups, are mentioned if they are involved in criminal activity for funding.