| Indicator | University Z-score | Average country Z-score |
|---|---|---|
|
Multi-affiliation
|
-1.079 | -0.119 |
|
Retracted Output
|
-0.193 | -0.208 |
|
Institutional Self-Citation
|
1.134 | 0.208 |
|
Discontinued Journals Output
|
-0.205 | -0.328 |
|
Hyperauthored Output
|
-0.609 | 0.881 |
|
Leadership Impact Gap
|
0.704 | 0.809 |
|
Hyperprolific Authors
|
-1.413 | 0.288 |
|
Institutional Journal Output
|
-0.268 | -0.139 |
|
Redundant Output
|
5.311 | 0.778 |
Tokyo Denki University (TDU) presents a robust scientific integrity profile, with an overall risk score of -0.048 indicating a performance that is well-aligned with expected standards. The institution demonstrates significant strengths in maintaining very low-risk levels for Multiple Affiliations, Hyperprolific Authors, and publication in its own journals, showcasing a strong foundation of ethical research practices. However, this solid performance is contrasted by a critical alert in the Rate of Redundant Output (Salami Slicing), which is significantly elevated, and medium-risk signals in Institutional Self-Citation and the gap in research impact leadership. According to SCImago Institutions Rankings data, TDU's academic strengths are most prominent in Computer Science, Mathematics, Physics and Astronomy, and Earth and Planetary Sciences. The identified risk of research fragmentation directly challenges the university's mission to foster a "solid and diligent academic culture" that contributes to society. Such practices prioritize publication volume over the substantive technological contributions envisioned in its mission. To fully align its operational reality with its strategic vision, TDU is advised to undertake a focused review of its publication incentive structures, ensuring that academic output genuinely reflects the depth and diligence central to its institutional identity.
The institution exhibits a Z-score of -1.079, a figure significantly lower than the national average of -0.119. This result demonstrates a commendable low-profile consistency, where the complete absence of risk signals aligns with the low-risk standard observed across the country. While multiple affiliations can be a legitimate outcome of researcher mobility or partnerships, the university's very low rate confirms that there are no indicators of strategic attempts to inflate institutional credit or engage in “affiliation shopping,” reflecting a clear and transparent representation of its collaborative network.
With a Z-score of -0.193, the institution's rate of retractions is in close alignment with the national average of -0.208. This reflects a state of statistical normality, where the level of risk is as expected for its context. Retractions are complex events, and a low rate such as this suggests that post-publication corrections are occurring at a standard frequency. There is no evidence to suggest that quality control mechanisms are failing systemically; rather, the data points to a responsible and normative handling of scientific error correction without indicating any underlying vulnerability in the institution's integrity culture.
The institution's Z-score of 1.134 is notably higher than the national average of 0.208, indicating high exposure to this particular risk. This suggests the institution is more prone to showing alert signals than its peers. While a certain level of self-citation is natural, this disproportionately high rate signals a potential for concerning scientific isolation or 'echo chambers' where the institution validates its own work without sufficient external scrutiny. This value warns of the risk of endogamous impact inflation, suggesting that the institution's academic influence may be oversized by internal dynamics rather than by broader recognition from the global community.
The institution's Z-score of -0.205, while in the low-risk category, is slightly higher than the national average of -0.328. This points to an incipient vulnerability, as the center shows minor signals that warrant review before they potentially escalate. A sporadic presence in discontinued journals may occur, but this slight elevation suggests a need to reinforce due diligence in selecting dissemination channels. It serves as a preemptive alert to ensure that institutional resources are not being wasted on 'predatory' or low-quality practices that could carry future reputational risks.
With a Z-score of -0.609, the institution maintains a low-risk profile in an area where the country shows a medium-risk average (0.881). This demonstrates institutional resilience, as internal control mechanisms appear to successfully mitigate the systemic risks observed in the national environment. This strong performance indicates that the university effectively distinguishes between necessary massive collaboration and potentially problematic 'honorary' or political authorship practices, thereby upholding transparency and individual accountability in its research publications.
The institution's Z-score of 0.704 is moderately lower than the national average of 0.809, indicating a differentiated management of this risk. The center successfully moderates a risk that appears more common across the country. Although a gap exists, suggesting some reliance on external partners for achieving high-impact publications, the institution shows a comparatively stronger ability to generate impact from research where it exercises intellectual leadership. This reduces the sustainability risk of having its scientific prestige appear dependent and exogenous, pointing instead to a more balanced and structural internal capacity.
The institution presents a Z-score of -1.413, marking a complete absence of risk in an area where the national average sits at a medium-risk level of 0.288. This exemplifies a state of preventive isolation, where the center does not replicate the risk dynamics observed in its environment. This result strongly suggests a healthy academic culture that avoids imbalances between quantity and quality. It indicates a clear institutional position against practices such as coercive authorship or assigning credit without real participation, prioritizing the integrity of the scientific record over the inflation of metrics.
With a Z-score of -0.268, the institution demonstrates a total operational silence regarding this indicator, performing even better than the very low-risk national average of -0.139. This absence of risk signals, even below the national baseline, highlights a robust commitment to external, independent peer review. By avoiding reliance on in-house journals, the university effectively sidesteps potential conflicts of interest and academic endogamy, ensuring its scientific production is validated through competitive global channels and maximizing its international visibility.
The institution's Z-score of 5.311 is a critical red flag, indicating a significant risk level that starkly accentuates the medium-risk vulnerability present in the national system (0.778). This severe discrepancy suggests a systemic practice of fragmenting coherent studies into 'minimal publishable units' to artificially inflate productivity metrics. Such a high value alerts that this practice may be distorting the available scientific evidence and overburdening the review system. This dynamic prioritizes publication volume over the generation of significant new knowledge, demanding an urgent and deep integrity assessment of publication practices.
