data cleaning
data cleaning on Beyond Market Intelligence: a running collection of 6 stories we have gathered and hand-picked because they are worth your time. Every post here touches on data cleaning in some way — the news, the analysis, the deep dives, and the occasional surprise find. Acme AI is the next-generation, AI-powered spreadsheet platform built to replace Excel and redefine how analysts, data scientists, and enterprise teams work with data. New stories are added to this page as we find them, so check back if you want to keep up with what is happening around data cleaning, or subscribe to the RSS feed to get them as soon as they are published. Browse the collection below, or head back to the homepage to see everything Beyond Market Intelligence is covering right now.
How to xlookup/indexmatch columns with imperfect data?
Reconciling data from disparate sources—especially when formats are inconsistent—is a common challenge. You’re facing this with “first last” and “Last, First” name variations, compounded by duplicates and misspellings. While concatenation often fails in these scenarios, XLOOKUP and INDEX/MATCH can still be powerful tools. Explore leveraging fuzzy matching techniques or data cleaning steps *before* applying these functions to improve accuracy. For deeper preparation, consider reviewing our article on passing the Microsoft Excel Exam (MO 210) for valuable insights.
We got tired of trying 10 ML models every time we had a new dataset [P]
Tired of the iterative grind of testing multiple machine learning models for each new dataset? We were too. That’s why we built Arcliq (https://arcliq.app), a platform designed to streamline your ML workflow. Simply upload your tabular data, and Arcliq automatically handles preprocessing, trains and compares various models, and delivers the best-performing solution. Our goal is to empower users – regardless of expertise – to rapidly move from data to working model.

5 Python Libraries That Make Data Cleaning More Enjoyable
Data cleaning doesn’t have to be a chore. This article introduces five Python libraries designed to transform tedious data preparation into an expressive and genuinely enjoyable process. We've compiled a list of tools that empower you to streamline workflows and unlock deeper insights from your data. Discover how these libraries can simplify complex tasks and accelerate your analysis. For those working with image classification, you might find our accompanying dataset, "Starfield Fauna," a valuable resource for practical application.

Turn Any CSV into an Executive Report with Python and AI
Transform raw CSV data into compelling executive reports with this practical Python and AI pipeline. Learn to automate data cleaning, uncover key insights, and generate clear, narrative summaries—all in a repeatable process. This empowers data-driven decision-making without manual effort. Discover a future-focused approach to data storytelling, moving beyond spreadsheets to unlock actionable intelligence. For those diving deeper into AI/ML project collaboration, consider the discussion started by /u/Economy_Cicada8756 on contributing to related projects.
AI Slop Is Costing You Hours. Here's How To Stop Sending It.
AI-generated data errors – often called "AI slop" – are silently eroding productivity, costing teams countless hours in correction and rework. It’s a common problem, but not an inevitable one. Explore practical strategies to identify and mitigate these errors, reclaiming valuable time and ensuring data integrity. Discover how to refine your AI prompts and validation processes for more reliable outputs. For deeper insights into leveraging AI effectively, see our article, "Top 5 Claude Skills for Writing (Ranked by GitHub Stars)."
The qlora 2e-4 default is wrong under 10k samples and nobody talks about it [D]
Fine-tuning QLoRA models on smaller datasets—less than 10,000 samples—often leads to unexpected results. The pervasive default learning rate of 2e-4, widely promoted across tutorials and documentation, can actually trigger overfitting. Extensive experimentation reveals that a starting learning rate of 1e-4 or lower, combined with increased epochs, consistently yields significantly improved evaluation metrics. This adjustment, easily implemented, can save practitioners considerable time and frustration, as detailed in a recent discussion about ECCV expenses.