Hohai University

EXECUTIVE SUMMARY AND STRATEGIC VISION

Hohai University demonstrates a robust scientific integrity profile, with an overall risk score of -0.154 indicating performance that is well-aligned with best practices. The institution exhibits exceptional strengths in maintaining structural research independence, ensuring authorial transparency, and selecting high-quality publication venues, with minimal to non-existent signals of risk in these areas. However, this strong foundation is contrasted by medium-risk indicators in Institutional Self-Citation and Hyperprolific Authorship, which require strategic attention. According to SCImago Institutions Rankings data, the university's world-class standing is evident in its key thematic areas, particularly in Environmental Science (ranked 24th globally), Earth and Planetary Sciences (40th), and Energy (67th). These rankings directly support its mission to conduct "groundbreaking scientific and technological research concerning water conservancy" for a "sustainable society." Nevertheless, the elevated rate of self-citation could challenge the perception of its "world-class academic achievement" by suggesting that its impact is partially sustained by internal validation rather than exclusively by external peer recognition. To fully realize its mission and ensure its contributions hold undisputed social and economic value, it is recommended that the university develops targeted policies to mitigate these specific vulnerabilities, thereby reinforcing its global leadership and commitment to transparent, externally validated excellence.

ANALYSIS BY INDICATOR

Rate of Multiple Affiliations

The institution's Z-score of -0.063 is statistically identical to the national average of -0.062, reflecting a risk level that is perfectly aligned with its context. This indicates that the university's collaborative patterns and researcher affiliations are normal for its environment. While multiple affiliations can sometimes signal attempts to inflate institutional credit, the data here suggests that the observed rate is a legitimate result of standard researcher mobility and partnerships, showing no evidence of "affiliation shopping" or other strategic misuse.

Rate of Retracted Output

With a Z-score of -0.014, the institution shows a slightly higher signal for retracted publications compared to the national average of -0.050. This minor elevation suggests an incipient vulnerability that warrants proactive review. Retractions can result from the honest correction of errors, but a rate that begins to diverge from the norm, even slightly, may indicate that pre-publication quality control mechanisms could be under strain. This signal calls for a preventative check to ensure that potential issues of methodological rigor or recurring malpractice are addressed before they escalate.

Rate of Institutional Self-Citation

The institution's Z-score of 0.863 is significantly higher than the national average of 0.045, indicating a high exposure to this particular risk. While a certain level of self-citation reflects the natural continuity of research lines, this disproportionately high rate signals a potential for concerning scientific isolation or an "echo chamber" where work is validated without sufficient external scrutiny. This value warns of a tangible risk of endogamous impact inflation, suggesting that the institution's academic influence may be oversized by internal dynamics rather than by recognition from the broader global community.

Rate of Output in Discontinued Journals

The institution demonstrates a prudent profile with a Z-score of -0.143, which is considerably lower than the national average of -0.024. This indicates that the university manages its publication processes with more rigor than the national standard. This strong performance in due diligence effectively mitigates the severe reputational risks associated with publishing in channels that fail to meet international ethical or quality standards, showing a clear commitment to avoiding "predatory" practices and ensuring research is disseminated through credible venues.

Rate of Hyper-Authored Output

With a Z-score of -1.220, the institution shows a very low rate of hyper-authorship, performing significantly better than the low-risk national standard (-0.721). This absence of risk signals demonstrates a consistent and healthy approach to authorship. It suggests that the university effectively distinguishes between necessary massive collaboration in "Big Science" contexts and questionable practices like "honorary" or political authorship, thereby preserving individual accountability and transparency in its research output.

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

The institution's Z-score of -1.198 signifies a total operational silence in this risk indicator, a result that is even stronger than the national average of -0.809. This outstanding performance indicates that the university's scientific prestige is structural and self-sufficient, not dependent on external partners for impact. The data confirms that its excellence metrics are the result of genuine internal capacity and intellectual leadership, signaling a highly sustainable and robust research ecosystem.

Rate of Hyperprolific Authors

The institution's Z-score for hyperprolific authors is 0.223, a medium-risk signal that is nonetheless notably lower than the national average of 0.425. This suggests that while the pressure for high-volume publication is a systemic factor in the country, the university employs differentiated management that successfully moderates this risk. By maintaining a lower rate than its peers, the institution shows a greater ability to balance quantity and quality, thereby mitigating the potential for coercive authorship or other dynamics that prioritize metrics over the integrity of the scientific record.

Rate of Output in Institutional Journals

The institution's Z-score of -0.268 indicates a very low reliance on its own journals, a practice that aligns well with national standards where this activity is also low (-0.010). This demonstrates a strong commitment to seeking independent, external peer review for its research. By avoiding the potential conflicts of interest and academic endogamy associated with in-house publishing, the university ensures its scientific production is validated through competitive, global channels, enhancing its visibility and credibility.

Rate of Redundant Output

With a Z-score of -0.649, the institution shows a total absence of risk signals related to redundant publications, performing even better than the very low-risk national average (-0.515). This operational silence indicates a strong institutional culture that prioritizes the generation of significant new knowledge over the artificial inflation of productivity metrics. This practice prevents the fragmentation of data through "salami slicing" and ensures that the university's contributions to the scientific record are substantial and meaningful.