En esta clase vamos a dar respuesta a una gran duda: ¿Cómo funcionan los motores de búsqueda?
Como sabemos un motor de búsqueda es una herramienta que localiza contenidos web rápidamente para presentarle al usuario, en función de su petición de búsqueda, la mejor respuesta, los resultados más adecuados a sus necesidades.
¿Cómo funcionan los motores de búsqueda?
Los motores de búsqueda funcionan de la siguiente manera: éstos encuentran sitios utilizando un robot o web crawler que las rastrea y sigue a los enlaces recogidas en estos sitios para construir una super red. La araña salta de un link a otro navegando por diferentes sitios web y almacenando los datos en una gran base de datos.
Una vez esto, es hora de la indexación. El spider encuentra la información y crea un índice con la información más relevante de un sitio web que almacena en su base de datos. Esta información es la única que se muestra al realizar una búsqueda.
Después toca el momento en que el usuario realiza una petición de búsqueda en el motor de búsqueda. En este instante, un algoritmo trabaja para encontrar dentro de esa gran base de datos indexados, los resultados más relevantes para esa petición. Y todo en cuestión de segundo. Si se piensa, es algo asombroso.
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