“…It was concluded that there are some frequency shifts and temperature changes during the swarming period. In another research, the authors used a k-means clustering technique in order to detect pre-swarming state, where they distinguish several climate patterns that are compared with real-time temperature hive data (Kridi, de Carvalho, & Gomes, 2014). Continuous weighing was shown to provide useful information and possible swarming detection (Buchmann & Thoenes, 1990;Meikle, Hoist, & Mercadier, 2006).…”