--- title: "Vaishnavi (@vaishnavi9) | Hashnode" description: "Vaishnavi (@vaishnavi9) writes on Hashnode. Read their latest articles and follow their work." url: "https://hashnode.com/@vaishnavi9" --- @vaishnavi9 # Vaishnavi @vaishnavi9 · Joined November 2025 ### [Inverted Index Explained: From Simple Idea to Scalable Engineering](https://govidivenivici.com/inverted-index-explained-from-simple-idea-to-scalable-engineering?utm_source=hashnode&utm_medium=feed) What Is an Inverted Index? (Explained Like You’re Not an Engineer) Imagine a book. At the end of the book, there’s an index: Apple → Page 5, 12Banana → Page 3Carrot → Page 7, 12 Instead of listing pages and their words, the index lists words and thei... 4 min read · [govidivenivici.com](https://govidivenivici.com/inverted-index-explained-from-simple-idea-to-scalable-engineering?utm_source=hashnode&utm_medium=feed) [Jan 12](https://hashnode.com/posts/inverted-index-explained-from-simple-idea-to-scalable-engineering/696543b66020632e13873f3d) ### [The First Time I Questioned Everything: Working With IBM HATS](https://govidivenivici.com/the-first-time-i-questioned-everything-working-with-ibm-hats?utm_source=hashnode&utm_medium=feed) And Why Some Industries Still Depend on It 3 min read · [govidivenivici.com](https://govidivenivici.com/the-first-time-i-questioned-everything-working-with-ibm-hats?utm_source=hashnode&utm_medium=feed) [Dec 28, 2025](https://hashnode.com/posts/the-first-time-i-questioned-everything-working-with-ibm-hats/69510a95a4fb820805e2ca20) ### [Choosing the Right Database for a Flight Plan System](https://govidivenivici.com/choosing-the-right-database-for-a-flight-plan-system?utm_source=hashnode&utm_medium=feed) A Metrics-Driven, Safety-Focused Guide for Architects 6 min read · [govidivenivici.com](https://govidivenivici.com/choosing-the-right-database-for-a-flight-plan-system?utm_source=hashnode&utm_medium=feed) [Dec 20, 2025](https://hashnode.com/posts/choosing-the-right-database-for-a-flight-plan-system/694645cda8139bfd94d62593) ### [Why Data Gets Overwritten: A Beginner’s Guide to Database Design for Ingestion Systems](https://govidivenivici.com/why-data-gets-overwritten-a-beginners-guide-to-database-design-for-ingestion-systems?utm_source=hashnode&utm_medium=feed) Learn why data gets overwritten in real systems and how good database design prevents it. A beginner-friendly guide with simple examples. 3 min read · [govidivenivici.com](https://govidivenivici.com/why-data-gets-overwritten-a-beginners-guide-to-database-design-for-ingestion-systems?utm_source=hashnode&utm_medium=feed) [Dec 18, 2025](https://hashnode.com/posts/why-data-gets-overwritten-a-beginners-guide-to-database-design-for-ingestion-systems/694465de55beab34e7e9ff99) ### [How Search Engines Think: Understanding the Term–Document Index Matrix](https://govidivenivici.com/how-search-engines-think-understanding-the-termdocument-index-matrix?utm_source=hashnode&utm_medium=feed) We have more data than understanding We live in a data-rich situation.Documents, webpages, PDFs, emails, and logs are created every second. But much of this data is never analysed at all. This creates a gap: Data is generated quickly Understanding ... 3 min read · [govidivenivici.com](https://govidivenivici.com/how-search-engines-think-understanding-the-termdocument-index-matrix?utm_source=hashnode&utm_medium=feed) [Dec 18, 2025](https://hashnode.com/posts/how-search-engines-think-understanding-the-termdocument-index-matrix/6943ff6cfffabe5c3cfbed22)