Activelearningisaprotocolforsupervisedmachinelearning,inwhichalearningalgorithmsequentiallyrequeststhelabelsofselecteddatapointsfromalargepoolofunlabeleddata.Thiscontrastswithpassivelearning,wherethelabeleddataaretakenatrandom.Theobjectiveinactivelearningistoproduceahighly-accurate