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The Vektor R4 is a South African 5.56×45mm assault rifle. [8] It entered service as the standard service rifle of the South African Defence Force (SADF) in 1980. [1] In South African service, the R4 replaced the R1, a variant of the 7.62×51mm FN FAL. [7]
The FAL (French: Fusil Automatique Léger, English: Light Automatic Rifle) is a battle rifle designed in Belgium by Dieudonné Saive and manufactured by FN Herstal and others since 1953. During the Cold War the FAL was adopted by many countries of the North Atlantic Treaty Organization (NATO), with the notable exception of the United States.
A key issue with content-based filtering is whether the system can learn user preferences from users' actions regarding one content source and use them across other content types. When the system is limited to recommending content of the same type as the user is already using, the value from the recommendation system is significantly less than ...