Hitachi today announced the development of active-learning dialogue-data based AI technology to enable EMIEW3, Hitachi’s human symbiotic service robot to spontaneously “learn” how to respond to questions that it could not previously answer. EMIEW3 clarifies the meaning of enquiries with related staff through dialogue interaction, and in the process, automatically increases its dialogue contents to increase “comprehension” for appropriate responses. Hitachi is currently developing EMIEW3 with view to use in customer service and guidance settings. Using this technology, EMIEW3’s dialogue contents can be enhanced by staff without specialist training, simply by responding to queries posed by EMIEW3, and was found to reduce labor-hours for this process to about one-tenth the time previously needed Further, this technology allows EMIEW3 to learn more quickly about products or facilities which may change daily, as well as increase comprehension and correctly respond to customer enquiries. Hitachi is aiming to provide even higher quality dialogue-data based solutions by using this technology.