TODS4401-02
https://cse.buffalo.edu/~zzhao35/files/papers/a2-li.pdf
23 Jan 2019:
2. Wander Join and XDB: Online Aggregationvia Random Walks. FEIFEI LI, University of Utah, USABIN WU and KE YI, Hong Kong University of Science and Technology, ChinaZHUOYUE ZHAO, University of Utah, USA. Joins are expensive, and online aggregation