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Showing posts from November, 2023

Popular Methods for Machine Learning

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Machine Learning involves the programmatic training of applications to predict outcomes. Numerous algorithms and techniques are available for addressing prediction challenges in machine learning. In this discussion, we will explore three popular methods: Logistic Regression, Decision Tree, Random Forests, and Neural Networks. Logistic Regression Logistic Regression, a supervised machine learning algorithm, employs a binary classification approach, yielding a result based on two possible values while outputting only one, such as a Boolean (true or false). Despite its historical roots dating back to the 19th century, this method remains popular in machine learning. The resulting function displays an "S"-shaped graph, utilizing the logit function to constrain probabilities between 0 and 1. For instance, consider the scenario where we are trying to predict the likelihood of a person being approved for a mortgage based on their credit score and income. In the provided colored data...

Planning a Data Warehouse

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Setting up a data warehouse is a strategic move for businesses aiming to leverage historical data for informed decision-making. In this blog post, we'll dive into the essential planning phase, emphasizing the need for efficient data extraction, transformation, and loading processes to ensure optimal functionality. Let's explore the key steps to plan a data warehouse successfully. 1. Defining and Documenting Requirements for Data Warehouse During the planning phase, it's imperative to define and document requirements meticulously. This not only sets clear expectations for stakeholders but also facilitates seamless onboarding for new team members. The documentation should encompass various aspects, with a focus on the sources of data.  Key details include: Historical Data : Identify the duration of available historical data, spanning from months to years, providing valuable insights into the business's evolution. Data Sources : Specify diverse sources, such as websites, m...

Big Data Characteristics Explained

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Big Data is a hot topic in business, and it's not just a buzzword – it's a part of our daily lives everywhere. It goes beyond just having heaps of data; it includes how the data is structured, how fast we can process it, and, most importantly, what we can achieve with it. Two major factors driving the surge in data are improved computer capacity and increased data generation. Nowadays, our hard drives are not only bigger but also faster, allowing us to handle more data at lightning speed. This has led to a significant rise in data from various sources over the past decade. The value of Big Data for businesses today is immense, as it allows for improvements in various departments by recognizing common patterns, analyzing data, and delving into artificial intelligence and machine learning. Big data has four key characteristics, known as the 4 Vs: Volume: Receiving large amounts of data from various sources, often posing challenges when processed on personal compu...