Fig. 2From: Contact diaries versus wearable proximity sensors in measuring contact patterns at a conference: method comparison and participants’ attitudesSensor-based (abscissa) versus diary-based (ordinate) strength per participant. Diary-based strength is given as range, from the minimal plausible to the maximal plausible strength value that was consistent with the reported duration categories. Sensor-based strength values are point-estimates and jittered, where necessary. Dotted line indicates equal strength. Blue ranges include the corresponding sensor-based strength, red ranges exclude itBack to article page