The 3rd AI & Artificial Intelligence EXPO was held at Tokyo Big Sight from April 3 (Wed.) to April 5 (Fri.), 2019, where we exhibited our products. This is a specialized exhibition on AI and Artificial Intelligence, which has been attracting increasing attention in recent years for its applications. The venue this time was the Ome Exhibition Hall of Tokyo Big Sight, and we had to get on and off at a different station from the one nearest Tokyo Big Sight. I had done my research on the transfer system in advance and was well prepared! But we had to transfer to a conventional train from Shinagawa Station....

To learn Chinese, the Romanized pronunciation symbols called Pinyin and the four tones (tone of voice), which indicate the raising and lowering of sounds, are considered important, and are the first major obstacle for beginner learners. The most common example of tone is the sound "ma" (ma). If the intonation changes, the sound is the same but the meaning is different, as in " Mum (mother)", " Ma (hemp)", " Ma (horse)", or " M (scold)". Our Chinese integration software "...