TY - JOUR
T1 - Tabula in Action
T2 - A Sampling Middleware for Interactive Geospatial Visualization Dashboards
AU - Yu, Jia
AU - Chowdhury, Kanchan
AU - Sarwat, Mohamed
N1 - Funding Information:
This work is supported by the National Science Foundation (NSF) under Grant 1845789.
Publisher Copyright:
© VLDB Endowment. All rights reserved.
PY - 2020
Y1 - 2020
N2 - In this paper, we demonstrate Tabula, a middleware that sits between the data system and the geospatial visualization dashboard to increase user interactivity. The proposed system adopts a sampling cube approach that stores pre-materialized spatial samples and allows data scientists to define their own accuracy loss function such that the produced samples can be used for various user-defined visualization tasks. The system ensures that the difference between the sample fed into the dashboard and the raw query answer never exceeds the user-specified loss threshold. For demonstration purposes, we connect Apache Zeppelin, a visualization dashboard, to the system and show how Tabula accelerates interactive visualizations on NYC Taxi Trip data, Yelp review data and San Diego Smart Streetlights data.
AB - In this paper, we demonstrate Tabula, a middleware that sits between the data system and the geospatial visualization dashboard to increase user interactivity. The proposed system adopts a sampling cube approach that stores pre-materialized spatial samples and allows data scientists to define their own accuracy loss function such that the produced samples can be used for various user-defined visualization tasks. The system ensures that the difference between the sample fed into the dashboard and the raw query answer never exceeds the user-specified loss threshold. For demonstration purposes, we connect Apache Zeppelin, a visualization dashboard, to the system and show how Tabula accelerates interactive visualizations on NYC Taxi Trip data, Yelp review data and San Diego Smart Streetlights data.
UR - http://www.scopus.com/inward/record.url?scp=85135007291&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85135007291&partnerID=8YFLogxK
U2 - 10.14778/3415478.3415510
DO - 10.14778/3415478.3415510
M3 - Article
AN - SCOPUS:85135007291
SN - 2150-8097
VL - 13
SP - 2925
EP - 2928
JO - Proceedings of the VLDB Endowment
JF - Proceedings of the VLDB Endowment
IS - 12
ER -