University of Yamanashi

EXECUTIVE SUMMARY AND STRATEGIC VISION

The University of Yamanashi demonstrates a solid and responsible scientific profile, with an overall integrity score of -0.058 that indicates a performance slightly above the global average and a general alignment with best practices. The institution's primary strengths lie in its institutional resilience, effectively mitigating national risk trends in areas such as self-citation and hyperprolific authorship, and showing exceptional control over its own publication channels. However, areas requiring strategic attention have been identified, particularly a high exposure to hyper-authorship and redundant publications ('salami slicing'), which exceed national averages. These findings are contextualized by the university's outstanding thematic performance, as evidenced by SCImago Institutions Rankings data, which places it among Japan's elite in critical fields like Energy (ranked 6th nationally) and Environmental Science (13th). The identified risks, while moderate, present a potential conflict with the university's mission of "Creating the Backbone of the Community and Developing Citizens of the World." Practices that prioritize publication volume over substance could undermine the credibility and robust knowledge required to be a community's backbone and could tarnish the global reputation of its citizens. To fully align its operational excellence with its aspirational mission, it is recommended that the University of Yamanashi leverage its proven control mechanisms to develop clearer guidelines on authorship and publication integrity, ensuring its significant scientific contributions are communicated with maximum transparency and impact.

ANALYSIS BY INDICATOR

Rate of Multiple Affiliations

The institution exhibits a prudent profile in its collaboration patterns, with a Z-score of -0.462, which is significantly lower than the national average of -0.119. This indicates that the university manages its affiliation declarations with greater rigor than the national standard. While multiple affiliations are often a legitimate result of researcher mobility or partnerships, the university's controlled rate suggests a well-governed environment that effectively avoids practices that could be misconstrued as strategic attempts to inflate institutional credit or "affiliation shopping," thereby reinforcing its commitment to transparent and meaningful collaboration.

Rate of Retracted Output

With a Z-score of -0.014, compared to the national average of -0.208, the university shows an incipient vulnerability regarding retracted publications. Although the absolute risk is low, this score suggests the institution is beginning to show signals in an area where the country as a whole has a lower incidence. Retractions can be complex, sometimes reflecting responsible error correction. However, this slight uptick warrants a proactive review of pre-publication quality control mechanisms to ensure they are robust enough to prevent any potential systemic issues related to methodological rigor or research integrity from escalating.

Rate of Institutional Self-Citation

The University of Yamanashi demonstrates notable institutional resilience, with a Z-score of -0.086 in a national context where the average is a moderate 0.208. This suggests that the university's internal control mechanisms are effectively mitigating the systemic risks of academic endogamy observed elsewhere in the country. A certain level of self-citation is natural, but the university successfully avoids the disproportionately high rates that can signal 'echo chambers' or impact inflation. This result points to a culture that values external scrutiny and validation, ensuring its academic influence is driven by global community recognition rather than internal dynamics.

Rate of Output in Discontinued Journals

The institution's performance in this indicator reflects statistical normality, with a Z-score of -0.287 that is almost identical to the national average of -0.328. This alignment suggests that the university's risk level for publishing in discontinued journals is as expected for its context and size. While a sporadic presence in such journals can occur, the current rate does not signal a systemic failure in due diligence. Nevertheless, maintaining awareness and providing resources on selecting high-quality dissemination channels remains a crucial aspect of research support to prevent any future exposure to reputational risks associated with predatory or low-quality publishing practices.

Rate of Hyper-Authored Output

The university shows high exposure in this area, with a Z-score of 1.096 that surpasses the national average of 0.881. This indicates a greater tendency toward publications with extensive author lists compared to its national peers. While this is legitimate in "Big Science" disciplines, a high score can otherwise signal author list inflation, which dilutes individual accountability and transparency. This finding serves as an alert to review authorship policies, ensuring they clearly distinguish between necessary massive collaboration and potentially inappropriate 'honorary' or political authorship practices that compromise the integrity of the research record.

Gap between Impact of total output and the impact of output with leadership

The institution demonstrates differentiated management of its research impact, with a Z-score of 0.332, which is considerably lower than the national average of 0.809. This indicates that the university successfully moderates a risk that appears more common across the country. A wide positive gap can signal a dependency on external partners for prestige, suggesting that excellence is exogenous rather than structural. By maintaining a smaller gap, the university shows a healthier balance, indicating that its scientific prestige is more closely tied to its own internal capacity and intellectual leadership within collaborations, which is a key factor for long-term sustainability.

Rate of Hyperprolific Authors

Displaying strong institutional resilience, the university maintains a Z-score of -0.496, in stark contrast to the national average of 0.288. This result indicates that the institution's control mechanisms are effectively mitigating the systemic risks of hyperprolificacy seen at the national level. While high productivity can be legitimate, extreme volumes often challenge the limits of meaningful intellectual contribution. The university's low score signals a healthy balance between quantity and quality, successfully avoiding the risks of coercive authorship or the assignment of credit without real participation, thereby prioritizing the integrity of the scientific record over raw metrics.

Rate of Output in Institutional Journals

In this indicator, the university's performance reflects total operational silence, with a Z-score of -0.268, which is even lower than the already minimal national average of -0.139. This absence of risk signals demonstrates an exemplary commitment to external validation. While in-house journals can be valuable, an over-reliance on them can create conflicts of interest and academic endogamy. The university's extremely low rate indicates that its scientific production consistently undergoes independent, external peer review, maximizing its global visibility and reinforcing its adherence to the highest standards of competitive scientific validation.

Rate of Redundant Output

With a Z-score of 1.186, significantly above the national average of 0.778, the institution demonstrates high exposure to redundant publication practices. This elevated rate of bibliographic overlap between simultaneous publications is a critical alert for potential 'salami slicing,' a practice where a coherent study is fragmented into minimal publishable units to artificially inflate productivity. This dynamic not only overburdens the peer-review system but also distorts the scientific evidence available to the community. It is advisable to review publication strategies to ensure that research is presented in its most complete and impactful form, prioritizing the generation of significant new knowledge over volume.