Riku Yamamoto

Riku Yamamoto

PhD Student

Department of Creative Informatics

Kyushu Institute of Technology

I am a Ph.D. student at Kyushu Institute of Technology, working on machine learning for facial expression recognition (FER) and internal state estimation (drowsiness, arousal). My research focuses on overcoming real-world bottlenecks such as data scarcity and individual differences, with a particular interest in zero-shot compound expression estimation and identity-robust contrastive learning.

Research Interests

Facial Expression Recognition Compound Expression Estimation Drowsiness / Arousal Estimation Contrastive Learning Zero-Shot Learning Computer Vision

Awards & Honors

Recent Publications

Zero-Shot Estimation of Compound Emotional Expressions from Facial Images Using Only Basic Emotional Expression Features

· 2026

DOI: 10.1007/978-981-95-4395-3_13

顔の個人差を抑制する対照学習表現による内部状態推定

山本陸, 武村紀子

第29回 画像の認識・理解シンポジウム (MIRU2026) · 2026

EMMA: EMotion Mixing Algorithm for Compound Expression Recognition Using Angle-Based Metric Learning

· 2025

DOI: 10.1007/978-981-96-2644-1_11