Interactive publication
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GPS-derived location accuracy
A GPS fix's reported horizontal accuracy (often tens to hundreds of meters, worse indoors/urban canyon) is frequently discarded downstream, letting a low-accuracy fix be indexed at a resolution finer than it can support.
Class
Case to account for
Affects
1 conversion
01
Detection
Fix accuracy radius greater than the edge length of the H3 resolution being indexed to.
02
Mitigation
01
Cap H3 indexing resolution to the fix's reported accuracy radius
02
Drop or down-weight fixes with accuracy worse than a defined ceiling (e.g. > 500 m)
03
Affected conversions
PointH3
OPENMore in Advertising semantics
Bidstream truncationCarrier NAT / multi-family IP poolingCorridor boundary oscillationCross-device location stitchingDeclared resolution exceeds input accuracyDestination interestExcluded-area leakageFrequency across overlapping targetsGPS noise / boundary oscillationHome location inferenceIP-derived locationLocation confidence scoringLocation interest versus presenceLookback window sensitivityMixed-provenance channel bundlePhysical presencePooled location sources in delivery logsPublisher-declared locationRecent presenceTreatment/control contaminationWork location inference