9 citations · 15 across the 4 of their papers we have counts for
3 papers · 1 filter
Real-Time Visual Analysis of High-Volume Social Media Posts
Johannes Knittel, Steffen Koch, Tan Tang +4
Breaking news and first-hand reports often trend on social media platforms before traditional news outlets cover them. The real-time analysis of posts on such platforms can reveal…
Efficient Sparse Spherical k-Means for Document Clustering
Johannes Knittel, Steffen Koch, Thomas Ertl
Spherical k-Means is frequently used to cluster document collections because it performs reasonably well in many settings and is computationally efficient. However, the time comple…
ELSKE: Efficient Large-Scale Keyphrase Extraction
Johannes Knittel, Steffen Koch, Thomas Ertl
Keyphrase extraction methods can provide insights into large collections of documents such as social media posts. Existing methods, however, are less suited for the real-time analy…