Characterisation of the detections from the W234 method. The matched detections (blue segments) are categorised as correctly matched with single or multiple haloes, or incorrectly matched as defined in Sect. 8.3.1. The unmatched detections are sub-categorised as blended signal, boosted signal from the source distribution, false detections, or others, as defined in Sect. 8.3.2. The results are averaged over the 256 realisations.