| Indicator | University Z-score | Average country Z-score |
|---|---|---|
|
Multi-affiliation
|
-0.641 | -0.119 |
|
Retracted Output
|
-0.193 | -0.208 |
|
Institutional Self-Citation
|
0.717 | 0.208 |
|
Discontinued Journals Output
|
-0.019 | -0.328 |
|
Hyperauthored Output
|
1.022 | 0.881 |
|
Leadership Impact Gap
|
2.619 | 0.809 |
|
Hyperprolific Authors
|
-0.947 | 0.288 |
|
Institutional Journal Output
|
-0.268 | -0.139 |
|
Redundant Output
|
3.265 | 0.778 |
Tokyo City University presents a commendable overall integrity profile (Score: 0.134), characterized by significant strengths in controlling hyperprolific authorship and academic endogamy. However, this solid foundation is contrasted by critical and medium-level risks that require strategic attention. The institution demonstrates notable leadership in key thematic areas, with SCImago Institutions Rankings placing it among Japan's top performers in Energy (17th), Environmental Science (50th), Mathematics (55th), and Computer Science (68th). This academic excellence, however, is potentially undermined by a significant risk in redundant publications and elevated exposure to institutional self-citation and impact dependency. These practices conflict with the university's mission to "promote sensibility and character," as a focus on metric inflation over substantive contribution can compromise the very integrity it seeks to foster in its globally-welcomed talent. To fully align its operational reality with its aspirational vision, it is recommended that the university leverage its areas of strength to implement targeted policies that address these specific vulnerabilities, thereby safeguarding its reputation and reinforcing its commitment to genuine scientific advancement.
With an institutional Z-score of -0.641 compared to the national average of -0.119, the university demonstrates a prudent and rigorous approach to managing academic affiliations. This favorable position suggests that its collaborative practices are well-governed and align with legitimate research partnerships. While multiple affiliations can sometimes be used to inflate institutional credit, the university's lower-than-average rate indicates a healthy ecosystem where affiliations are a genuine reflection of researcher mobility and partnerships, rather than a tool for "affiliation shopping."
The university's Z-score for retracted publications (-0.193) is statistically aligned with the national figure (-0.208), indicating a normal and expected level of activity for its context. This parity suggests that the institution's rate of retractions reflects the standard process of scientific self-correction through honest error identification and responsible supervision. The data does not point to systemic failures in pre-publication quality control, but rather a functional academic process consistent with national peers.
The institution's Z-score of 0.717 is notably higher than the national average of 0.208, indicating a high exposure to the risks associated with this practice. This suggests that the university is more prone than its national peers to operating in a scientific 'echo chamber,' where its work is validated internally without sufficient external scrutiny. While some self-citation is natural, this elevated rate warns of potential endogamous impact inflation, where the institution's perceived academic influence may be oversized by internal dynamics rather than by recognition from the global scientific community.
The university's Z-score of -0.019, while low, is higher than the national average of -0.328, signaling an incipient vulnerability. This suggests that, compared to its peers, the institution's researchers show a slightly greater tendency to publish in journals that may not meet international quality standards. Although the overall rate is not alarming, this subtle deviation warrants a review of institutional guidance on selecting dissemination channels to prevent the waste of resources and mitigate potential reputational risks associated with 'predatory' or low-quality publishing practices.
With a Z-score of 1.022, the university shows a higher exposure to hyper-authorship than the national average of 0.881. This pattern suggests that, outside of disciplines where massive collaboration is standard, the institution may be more susceptible to author list inflation. This elevated rate serves as a signal to review authorship practices to ensure they reflect genuine intellectual contribution and accountability, distinguishing necessary large-scale collaborations from potentially 'honorary' or political authorship that can dilute transparency.
The university exhibits a Z-score of 2.619 in this indicator, a figure significantly higher than the national average of 0.809. This wide gap signals a high exposure to the risk of impact dependency. It suggests that a substantial portion of the institution's scientific prestige is derived from collaborations where it does not exercise intellectual leadership, making its high-impact profile potentially exogenous and not structurally sustainable. This finding invites a strategic reflection on whether the university's excellence metrics are the result of genuine internal capacity or a reliance on external partners.
The institution shows a Z-score of -0.947, which stands in stark contrast to the national medium-risk average of 0.288. This demonstrates a preventive isolation from a problematic national trend. The university's very low rate indicates a healthy research culture that effectively avoids the risks associated with extreme individual publication volumes. This result suggests an environment that prioritizes the quality and integrity of the scientific record over the sheer quantity of outputs, successfully sidestepping dynamics like coercive authorship or superficial contributions.
With a Z-score of -0.268, the university demonstrates a total operational silence in this area, performing even better than the low national average of -0.139. This is a clear indicator of strength, showing a firm commitment to external and independent peer review. By avoiding reliance on its own journals, the institution mitigates conflicts of interest and the risk of academic endogamy. This practice enhances the global visibility and credibility of its research, confirming that its scientific production is validated through standard competitive channels.
The university's Z-score of 3.265 is a critical alert, indicating that it significantly accentuates a vulnerability already present in the national system (Z-score: 0.778). This extremely high value points to a systemic practice of 'salami slicing,' where coherent studies are fragmented into minimal publishable units to artificially inflate productivity metrics. This behavior not only distorts the available scientific evidence and overburdens the peer-review system but also prioritizes volume over the generation of significant new knowledge, demanding urgent institutional review and intervention.
