The Maven Analytics course on " Data Prep & Exploratory Data Analysis " by Alice Zhao is a beginner-friendly introduction to machine learning with Python. It covers the key steps of the data science workflow, including: Gathering Data Scoping a Project Modeling Data Sharing Insights Cleaning Data Exploring Data Modeling Data Sharing Insights The presentation deck which is available as a download crisply summarizes the essential details and is a great reference to keep going back to. The course is well-suited for aspiring data scientists looking to get hands-on experience with the data prep and EDA stages of the machine learning workflow using Python and Jupyter Notebook.
In the Maven Crash Course " Learn Power Query, Power Pivot & DAX in 15 Minutes ", Chris Dutton walks through a hypothetical business case while showcasing the power of modern Excel tools like Power Query, Power Pivot and DAX. Power Query is used to extract, transform, and load data from external sources like SQL databases, PDF and CSV files. A relational model is created to join the tables without writing a single formula. Exploratory analysis is done using Power Pivot and Data Analysis Expressions (DAX). Data Analysis Expressions is the language that we can use to define new calculated columns and measures to enhance our Data Model instead of the traditional cell formulas that we'd typically use if our data was stored in worksheets. Pivot Charts and slicers are used to design a simple interactive report that the sales managers can use to analyze revenue trends and product performance.
This Week I Learned - * How does ChatGPT-like system work? * AI storytelling is a pivotal shift in the creative process. * In July 2023, Google Labs unleashed NotebookLM , an AI assistant that chews through a buffet of up to 50 sources, from documents to YouTube videos and even whole books. It then cooks up summaries, dishes out study guides, and serves follow-up questions on a silver platter. In September, a new feature was launched that transforms source material into a podcast so realistic, you'd think the AI hosts might just invite you over for coffee after the show. * Mukesh Ambani - Jio is the largest data company in the world. Its volumes are equivalent to AT&T mobile and Verizon combined. Jio delivered approximately 16 exabytes of data in this year. * Your bathroom geyser consumes only 2kW. It takes about five to 10 kilowatts (kW) to power a single rack of servers in a typical data centre, but a rack filled with advanced AI computing chips can demand well over 10
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