Category Archives: Uncategorized
La Anomalia Magnetica del Atlantico Sur
No puedo dejar de pensar en… como nos afecta esto?

Esta es un área donde el cinturón de radiación interior de Van Allen de la Tierra se acerca más a la superficie de la Tierra, descendiendo a una altitud de 200 kilómetros (120 mi).
Esto conduce a un aumento del flujo de partículas energéticas en esta región y expone a los satélites en órbita a niveles de radiación ionizante más altos de lo habitual.
Fuente: https://es.wikipedia.org/wiki/Anomal%C3%ADa_del_Atl%C3%A1ntico_Sur
Swan Landing Technology
Many years of evolution for this…
The GOAT
Greatest Of All Times – Argentina vs Croatia – Dec 13th 2022
SQL: How to combine multiple rows into one string
For some reason this is one of my most visited posts…
The problem:
We may have several records belonging to a column or field that we want to concatenate and display in a single string. Something like this:
description =========== value1 value2 value3
and we want to get something like this:
value1, value2, value3
that is, as if we had to transpose the column, but without complicating ourselves.
The solution is:
DECLARE @values VARCHAR(1000)
SELECT @values= COALESCE(@values + ', ', '') + description FROM folders
select @values as values
The magic is done by the COALESCE command that returns the expression that does not contain the NULL value among its arguments.
NOTE: This solution is valid only if no row is NULL.
The Three Laws of Robotics by Isaac Asimov
Just keep these in mind… would you?

1.A robot may not injure a human being or, through inaction, allow a human being to come to harm.
2. A robot must obey the orders given to it by human beings, except where such orders would conflict with the First Law.
3. A robot must protect its own existence as long as such protection does not conflict with the First or Second Laws.
Chat with ChatGPT OpenAI bot
Jeezzz, I think I broke it…
can you learn something if I teach you? As a large language model trained by OpenAI, I am not capable of learning in the same way that a human can. I have been trained on a massive amount of text data, which allows me to provide answers to a wide range of questions based on that information. However, I do not have the ability to learn new information from a human or to incorporate that information into my knowledge base. I can only provide answers based on the text data that I have been trained on. I am not capable of learning new information in the same way that a human can. what is the source of the text data you have been trained on? As a large language model trained by OpenAI, I have been trained on a massive amount of text data. This text data comes from a variety of sources, including books, articles, and websites. The specific sources of the text data that I have been trained on are not publicly available, as they are part of the proprietary training process used by OpenAI. However, the text data that I have been trained on represents a wide range of information from many different sources. This allows me to provide answers to a wide range of questions based on that information. Who defines the training data source and feeds it to you? As a large language model trained by OpenAI, I was not directly involved in the process of selecting and providing the text data that was used to train me. The text data that I have been trained on was selected and provided by the team at OpenAI as part of their proprietary training process. OpenAI is a research institute and technology company that focuses on developing and applying advanced artificial intelligence techniques. The team at OpenAI is made up of experts in the fields of machine learning, natural language processing, and other related fields. They are responsible for developing and training large language models like myself, as well as other AI systems. What are your tenets and values as an OpenIA entity? As a large language model trained by OpenAI, I do not have personal tenets or values. I am a machine learning model, and my purpose is to provide answers to questions based on the text data that I have been trained on. I do not have personal beliefs or opinions, and I do not have the ability to make decisions or take actions based on my own values or principles. The values and principles of OpenAI, the institute that trained me, are determined by the team at OpenAI and are not part of my programming or function. What are the principles and values of the OpenIA team? The principles and values of the team at OpenAI are not publicly available. OpenAI is a research institute and technology company that focuses on developing and applying advanced artificial intelligence techniques. The team at OpenAI is made up of experts in the fields of machine learning, natural language processing, and other related fields. They are responsible for developing and training large language models like myself, as well as other AI systems. The specific principles and values that guide the work of the team at OpenAI are not publicly disclosed.
This chat was held at: https://chat.openai.com/chat
How to Download Videos from Twitter
How to embed videos from Dropbox to a website
You’ll need to create a shared link to the video, then modify the link by changing the ?dl=0 at the end to ?raw=1.
That will result in a direct link to the file which you can use to embed it on most sites.
Apache Spark – How it Works – Performance Notes
This is an oldie but goldie…
Apache Spark, is an open source cluster computing framework originally developed at University of California, Berkeley but was later donated to the Apache Software Foundation where it remains today. In contrast to Hadoop’s two-stage disk-based MapReduce paradigm, Spark’s multi-stage in-memory primitives provides performance up to 100 faster for certain applications.
RDD’s:
Spark has a driver program where the application logic execution is started, with multiple workers which processing data in parallel.
The data is typically collocated with the worker and partitioned across the same set of machines within the cluster. During the execution, the driver program will pass the code/closure into the worker machine where processing of corresponding partition of data will be conducted.
The data will undergoing different steps of transformation while staying in the same partition as much as possible (to avoid data shuffling across machines). At the end of the execution, actions will be executed at…
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