IT Career Guides & Free Resources
Expert roadmaps, tutorials, salary guides and interview prep across Data Science, Generative AI, Python, Cloud & Analytics — written by GloryTecks trainers in Hyderabad.
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How Large Language Models (LLMs) Work Under the Hood
A large language model does one thing: given some text, it scores every possible next token. Everything else, from chat to code, is that step repeated. This guide follows the step with real numbers from GPT-2 running on a laptop, then explains training, temperature and why fluent text is not always true.
Aggregations in Power BI for Large Datasets
Power BI aggregations for large datasets: how an in-memory aggregation table answers summary queries over a huge DirectQuery fact table, why the grouping grain decides whether it helps, shown on real data where one grain is 345 times smaller and another barely smaller, which queries hit, and automatic aggregations.