Keishi Nomura

I have conducted research in the fields of informatics, communication studies, and quantitative psychology (psychological statistics). When loosely clustered in terms of the objects they deal with, my past and ongoing research can be summarized as follows:

1. Studies related to the analysis and utilization of research databases:
　1. Analysis of response styles in the Socio-Moral Image Database (Nomura et al., 2019, MathPsych)
　2. Metrically valid standardization of affective image database (Nomura et al., 2021, the Behaviormetric Society of Japan)
　3. Analysis of longitudinal database on people's behavior during the COVID-19 pandemic (Gallego Hiroyasu et al., 2023, Sci Rep)
2. Studies related to the description of the structure and application of mathematical models in human sciences (subject of my doctoral dissertation):
　1. Classification of item response models (Nomura & Okada, 2020, Seminar for Early Career Researchers in Japanese Society of Computational Statistics; Nomura et al., 2023, Seminar on Methods of Multivariate Analysis for Data with Complex Structures)
　2. Development and application of visual ontology for decision models (Nomura & Okada, 2022, IASC-ARS; MathPsych)
3. Enumeration and classification of utterances about emotion on Twitter after the Fukushima Daiichi Nuclear Power Plant Accident (Nomura, 2021, Completion Thesis of of the Science Interpreter Training Program at the University of Tokyo)
4. Studies related to the development and application of analytical techniques supporting empirical research on communication (primarily responsible for statistical analysis):
　1. Development of response style removal technique for affective ratings (Kumano & Nomura, 2019, ACII)
　2. Modeling of the differential effects of modes of perspective-taking on emotional sharing (Nomura et al., 2019, CogSci)
　3. Analysis of physiological synchronization during cooperative joint tasks and its relation to emotion recognition from first-person and third-person perspectives (Murata et al., 2021, Sci Rep)
　4. Critical examination of the concept of "presence" in VR research (Nomura, 2021, Doctoral Symposium on Advanced VR)
　5. Longitudinal analysis of psychological effects of social isolation during the COVID-19 pandemic (Sugiyama et al., 2021, the Japanese Journal of Psychology)

Theoretically, I base my research on the systematicity, historicity, uniqueness, and singularity of knowledge and knowledge media (→ library science), while also practically standing on formalization that maintains the generality and pseudo-manipulability of knowledge and knowledge media (→ informatics). Specifically focusing on representations such as images for academic use (theme 1), mathematical models (theme 2), and social media posts (theme 3), the key principle is to address communication-related issues with a technical rather than speculative approach (theme 4). The ultimate goal is to consider possible interventions in the actual knowledge production process, though progress in this regard is currently limited.