DeepAI AI Chat
Log In Sign Up

Probabilistic Re-aggregation Algorithm [First Draft]

07/13/2018
by   Alistair Reid, et al.
0

Spatial data about individuals or businesses is often aggregated over polygonal regions to preserve privacy, provide useful insight and support decision making. Given a particular aggregation of data (say into local government areas), the re-aggregation problem is to estimate how that same data would aggregate over a different set of polygonal regions (say electorates) without having access to the original unit records. Data61 is developing new re-aggregation algorithms that both estimate confidence intervals of their predictions and utilize additional related datasets when available to improve accuracy. The algorithms are an improvement over the current re-aggregation procedure in use by the ABS, which is manually applied by the data user, less accurate in validation experiments and provides a single best guess answer. The algorithms are deployed in an accessible web service that automatically learns a model and applies it to user-data. This report formulates the re-aggregation problem, describes Data61's new algorithms, and presents preliminary validation experiments.

READ FULL TEXT

page 1

page 2

page 3

page 4

05/31/2022

Weight Set Decomposition for Weighted Rank Aggregation: An interpretable and visual decision support tool

The problem of interpreting or aggregating multiple rankings is common t...
08/13/2019

Private Rank Aggregation under Local Differential Privacy

In typical collective decision-making scenarios, rank aggregation aims t...
01/25/2021

A fusion method for multi-valued data

In this paper we propose an extension of the notion of deviation-based a...
04/14/2022

Online Aggregation based Approximate Query Processing: A Literature Survey

In the current world, OLAP (Online Analytical Processing) is used intens...
12/13/2018

Toward incremental FIB aggregation with quick selections (FAQS)

Several approaches to mitigating the Forwarding Information Base (FIB) o...
10/03/2022

Aggregator Reuse and Extension for Richer Web Archive Interaction

Memento aggregators enable users to query multiple web archives for capt...