TY - JOUR
T1 - ESTIMATING OBSERVER AND DATA REPUTATION IN MARINER VOLUNTEERED BATHYMETRY
AU - Calder, D. B.
JO - The International Hydrographic Review
VL - 25
PY - 2021
DA - 2021/06/16
UR - https://ihr.iho.int/articles/estimating-observer-and-data-reputation-in-mariner-volunteered-bathymetry/
AB - Volunteered Bathymetric Information (more commonly called Crowd-sourced 
Bathymetry, CSB) has the potential to assist authoritative charting but a lack of 
formal assessment methods has limited uptake of this idea.  This paper proposes a reputation system for observers (and data) to estimate the observer’s ability to match authoritative depths; a time-sequence estimate of vertical bias is also 
computed.  This reputation can form the basis for decisions on how many observations are required from a VBI source before charting actions could be considered.  Using data from the IHO DCDB and NOAA surveys from the Puget Sound area (U.S. west coast), bias estimate and reputation assessment are demonstrated for archetypal observers.

Keywords: Observer Reputation, Crowdsourced Bathymetry, Volunteered Geographic Information, Volunteered Bathymetric Information, Mobile Crowd Sensing, Ranking System