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Table 4 Multiple criteria decision making matrix showing the four weighted criteria against the four main problems identified from the baseline data

From: Mind the gap—optimizing satellite tag settings for time series analysis of foraging dives in Cuvier’s beaked whales (Ziphius cavirostris)

Problem Criteria  
Effect on time series foraging analysis for BRS Ease to solve Effect on other tag functions Speed to solve
4 2 2 2
Gaps due to tag position preventing transmissions Low: experienced tagger ensured good tag placement Low: tags are attached remotely Medium: all data streams are compromised if tag is poorly positioned Low: limited number of deployments each season  
4 × 1 = 4 2 × 1 = 2 2 × 2 = 4 2 × 1 = 2 12
Gaps due to too much data recorded to receive High: current programming schedule is collecting more daily messages than can be received High: change programming schedule to reduce data amount High: loss of data across all data streams High: tags can be programmed before next deployment  
4 × 3 = 12 2 × 3 = 6 2 × 3 = 6 2 × 3 = 6 30
Gaps due to not enough transmissions per day Low: daily transmission limit was not reached in baseline tags Low: daily transmission limit was not reached in baseline tags Medium: changing transmission number will impact battery life Low: no other options to receive data  
4 × 1 = 4 2 × 1 = 2 2 × 2 = 4 2 × 1 = 2 12
Gaps due to animal surfacing behavior affecting reception rate High: behavior affects message number Medium: no way to control animal behavior, but can change programming schedule Medium: behavior effects how all data streams are received Medium: no way to control animal behavior, but can change programming schedule  
4 × 3 = 12 2 × 2 = 4 2 × 2 = 4 2 × 2 = 4 24
  1. Criteria numbers are weighted to a maximum of ten based on relative importance. Allocations in the matrix are based on a rating of high, medium and low allocating 3, 2, and 1 points, respectively