# A Topical Crawler for Uncovering Hidden Communities of Extremist Micro-Bloggers on Tumblr

> Research article (2015) · cited 13× · AI/ML

**Wikidata**: [openalex:W2292977015](https://www.wikidata.org/wiki/openalex:W2292977015)  
**Source**: https://4ort.xyz/entity/a-topical-crawler-for-uncovering-hidden-communities-of-extremist-micro-bloggers-on-tumblr