Dynamic Active Learning Based on Agreement and Applied to Emotion
Recognition in Spoken InteractionsPoster Session
/ Zhang, Yue
/ Coutinho, Eduardo
/ Zhang, Zixing
/ Quan, Caijiao
/ Schuller, BjoernProceedings of the 2015 International Conference on Multimodal Interaction2015-11-09p.275-278
Summary: In this contribution, we propose a novel method for Active Learning (AL) --
Dynamic Active Learning (DAL) -- which targets the reduction of the costly
human labelling work necessary for modelling subjective tasks such as emotion
recognition in spoken interactions. The method implements an adaptive query
strategy that minimises the amount of human labelling work by deciding for each
instance whether it should automatically be labelled by machine or manually by
human, as well as how many human annotators are required. Extensive experiments
on standardised test-beds show that DAL significantly improves the efficiency
of conventional AL. In particular, DAL achieves the same classification
accuracy obtained with AL with up to 79.17% less human annotation effort.