elastic search — 2 Technical Articles

May 8, 2021 · Backend Development

How to Build a High‑Precision Exam Question Search Engine with BM25 and LTR

This article explains the architecture and key algorithms behind a specialized exam‑question search engine, covering query parsing, BM25‑based relevance scoring, text‑image hybrid retrieval, Learning‑to‑Rank models, and practical optimizations for long queries and large K‑12 datasets.

BM25Learning-to-Rankelastic search

0 likes · 12 min read

How to Build a High‑Precision Exam Question Search Engine with BM25 and LTR

Programmer DD

Sep 25, 2020 · Information Security

Misconfigured ElasticSearch Server Exposes Millions of Bing Mobile Users' Data

A misconfigured ElasticSearch server owned by Microsoft leaked millions of Bing mobile app search queries, location data, device IDs and other details, exposing users worldwide to phishing, ransomware and even robbery risks, while Microsoft claims the breach affected only a small amount of non‑identifiable data.

Information SecurityPrivacybing mobile

0 likes · 6 min read

Misconfigured ElasticSearch Server Exposes Millions of Bing Mobile Users' Data