Human Capital Visualization using Speech Amount during Meetings (2025)

Abstract: In recent years, many companies have recognized the importance of human resources and are investing in human capital to revitalize their organizations and enhance internal communication, thereby fostering innovation. However, conventional quantification methods have mainly focused on readily measurable indicators without addressing the fundamental role of conversations in human capital. This study focuses on routine meetings and proposes strategies to visualize human capital by analyzing speech amount during these meetings. We employ conversation visualization technology, which operates effectively, to quantify speech. We then measure differences in speech amount by attributes such as gender and job post, changes in speech amount depending on whether certain participants are present, and correlations between speech amount and continuous attributes. To verify the effectiveness of our proposed methods, we analyzed speech amounts by departmental affiliation during weekly meetings at small to medium enterprises.

## introduction as the economy shifts toward knowledge-intensive value creation, the importance of employees' skills, relationships, and motivations increases. in response, many companies invest in their employees, a practice known as human capital management. the market also requires measuring the "capital" of employees to assess a company's value. furthermore, to facilitate the quantification of human capital, the japan cabinet office released the human capital visualization guidelines (japan cabinet office, 2022), and iso standards require companies to disclose quantitative human-capital information in their annual securities reports @xcite . conventional quantification methods for human capital have mainly focused on easy-to-measure indicators such as salaries and the ratio of female managers @xcite . while these metrics describe a company's state, they offer only indirect insight and are, therefore, insufficient to achieve the underlying goals of human capital visualization. in particular, a few indicators related to employee communication have been complex to measure, yet crucial to corporate activities. however, we believe conversations play a fundamental role because we inevitably have conversations. against this background, the present study focuses on "intra-organizational communication," an aspect that conventional evaluations have struggled to capture, and proposes a new method that visualizes this communication. specifically, we regard workplace meetings as key settings in which intraorganizational communication occurs and, using the amount of speech for each attribute and its temporal changes, compute (i) the proportion of speech per person for each attribute and its absolute deviation from an ideal distribution, (ii) the difference in the speech amount of one attribute depending on whether another attribute is present, and (iii) the correlation between employee tenure and speech amount. this study aims to fill this gap by quantitatively visualizing the amount of speech during meetings, enabling a deeper understanding of internal communication patterns and organizational power dynamics. to verify the effectiveness of the proposed method, we analyzed speech amounts by employee attribute during progress-report meetings at a smallto-medium-sized enterprise. ## proposed methods this paper proposes a method to analyze intraorganizational power relations and other attributespecific dynamics using speech amount data collected during meetings. an "attribute" here denotes any group membership, such as gender, job post, or department. we quantify speech amounts with "hylable discussion" and visualize communication for each attribute. specifically, we first collect the speech amount of each participant in a meeting and then aggregate it by attribute before analysis. to gauge the impact of hr initiatives, we also treat the long-term time series as explanatory variables to visualize changes in communication patterns. through these efforts, we aim to reveal imbalances and power structures in organizational communication, ultimately providing a new indicator for evaluating human capital. ## concluding remarks this paper proposes an analytical method that leverages speech amount data from meetings to visualize a facet of human capital: intra-organizational communication. applying the method to approximately four years of weekly progress report meetings at a small enterprise yielded several findings. an analysis of speech ratios revealed how the organization's communication evolved during the covid-19 pandemic. comparing speech amounts with and without specific attributes clarified the interaction pattern between the board and general affairs and illuminated the alternating leadership roles of sales and development. correlating tenure with speech amount yielded @xmath0.560, indicating a moderate positive seniority effect. the present approach focuses on only the speech amount. as a result, the metric could be manipulated, for example, by deliberately increasing one's speech amount(eg, time and volume) without contributing to human capital. future work should combine this quantitative indicator with qualitative analyses of utterance content, enabling a more accurate assessment of human capital. as @xcite demonstrates, providing participants with real-time feedback on their own and others' cumulative speech amounts reduces imbalances and flattens hierarchical structures. integrating such feedback mechanisms could further advance communication equity and, by extension, improve an organization's human capital.