September 2024
Intermediate to advanced
472 pages
13h 4m
Spanish
Content preview from Inteligencia Artificial con Microsoft Power BI
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Capítulo 2. Una gran base: La IA y el modelado de datos
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En Power BI, el objetivo general es producir cuadros de mando y modelos para apoyar el autoservicio orientado al negocio. Por desgracia, las fuentes de datos no suelen estar documentadas desde la perspectiva de los analistas, por lo que es difícil comprender dónde encontrar los campos necesarios para satisfacer las necesidades de los usuarios. Sin embargo, los usuarios empresariales son creativos. Pueden crear un montón de soluciones alternativas, lo que da lugar a fuentes de datos "en la sombra" de TI y "en la sombra", como los libros de Excel, que no están bajo la tutela del departamento de TI. A menudo, la documentación es limitada. A veces, la empresa puede proporcionar un diccionario de datos o un esquema de base de datos a petición, pero no está claro qué significan las tablas y los campos. Con frecuencia, las fuentes de datos contienen muchas tablas, por lo que a los redactores de informes les resulta difícil encontrar la información que necesitan.
Además, las relaciones entre bases de datos, como las uniones de tablas, no siempre son evidentes. Las tablas y vistas de las bases de datos pueden ser difíciles de relacionar entre sí y, por tanto, de navegar por ellas. A menudo, las tablas son difíciles de entender porque son amplias y tienen muchas columnas. Para los usuarios empresariales, esto suele ser ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.