■Title : Goodbye, Data Shortage Problem: Small Data Analysis powered by Generative AI
■Place : IMI Auditorium(W1-D-413) and Live streaming with Zoom
■Speaker : Dr. Genki Kusano, NEC Corporation Data Science Laboratories
■Participants： 52 (Students: 28; Staffs: 17; Others: 7)

The first IMI Colloquium of the academic year 2025 was held on Wednesday, April 9th ​​at 16:45-17:45, and Dr. KUSANO of NEC Corporation’s Data Science Laboratory gave a talk.  

First, he introduced how he became interested in implementing mathematics to the real world, from the Department of Mathematics, Faculty of Science, Kyushu University, where he was a student around the time to establish IMI, to Tohoku University, where he obtained the doctorial degree, and his own research history, which began with topological data analysis and machine learning.

He also gave a detailed introduction to NEC, where he now work, and the SIer (System Integrator) he works as. After that, he introduced the research he is working on.

One of his research topics is data tagging. He introduced how his research makes it possible to increase the resolution of information obtained from data, to set the granularity of tags as possible as they want, to speed up processing, and to reduce API costs.

The second research topic he introduced was recommendation systems. Input the user and item, He introduced the application of the system that returns the response to product recommendations, etc.

For each topic he introduced, he mentioned the balance between the preciseness of academic research and the required accuracy and cost when implementing it as a business. For example, which is better 60% accuracy obtained by spending 10 million yen to achieve results, or 58% accuracy obtained by spending 500,000 yen to achieve results, was very interesting.

After his talk, the participants were interested in his career, student days at Faculty of Mathematics, Kyushu University, and working days to apply mathematical knowledge in the private company after obtaining his doctorate, and it was impressive that there was an active Q&A session that went beyond the scheduled time.