Draft talk:Cyril Voyant

Does this subject meet criteria for an article?

Is Cyril Voyant Notable by Wikipedia Standards?

The answer is likely yes - Cyril Voyant appears to meet several Wikipedia notability criteria, though with some important caveats about the type and extent of independent coverage available.

Current Status and Key Findings

Cyril Voyant already has a French Wikipedia page[1], which suggests that at least some Wikipedia editors have deemed him notable enough for inclusion. However, the question of whether he meets the English Wikipedia's notability standards requires a more detailed analysis.

Professional Credentials and Achievements

Cyril Voyant is a French physicist born on October 6, 1977, who currently serves as Research Director at Mines Paris - PSL[2]. His career spans over two decades in medical physics and renewable energy research, with significant contributions to both fields.

Academic Output and Impact

- Over 130 peer-reviewed publications[2] across multiple disciplines

- 7,148+ citations according to Google Scholar[3], indicating substantial research impact

- Publications in high-impact journals including Nature Scientific Reports[4][5]

- One of his papers was ranked among the Top 100 downloaded cancer papers in Scientific Reports in 2024[6][5]

Professional Positions

- Research Director at Mines Paris - PSL (current position)[2]

- Former medical physicist at CHD Castelluccio (2003-2024)[2]

- Former academic at University of Corsica (2011-2023)[2]

- Founder of Phy2A scientific consultancy[2]

Wikipedia Notability Assessment

General Notability Guideline (GNG)

According to Wikipedia's General Notability Guideline[7], a subject must have "significant coverage in reliable sources that are independent of the subject."

1. Significant Coverage - ✓ PARTIAL

- Extensive academic citations and peer-reviewed publications

- Recognition in professional and academic contexts

- Limited traditional media coverage, but substantial scholarly attention

2. Reliable Sources - ✓ YES

- Peer-reviewed academic journals

- Institutional affiliations with major research organizations

- Professional recognition from the scientific community

3. Independent Sources - ⚠ MIXED

- Many sources are academic/professional in nature (which is typical for researchers)

- Limited coverage in mainstream news media

- Most coverage focuses on his research contributions rather than personal profile

Academic-Specific Notability Criteria

Wikipedia has specific guidelines for academics[8] that are more lenient than the general notability guideline, recognizing that many notable scholars may not receive mainstream media coverage. Under these academic-specific criteria, Cyril Voyant appears to qualify through several pathways:

*Research Impact[9]: His work has demonstrably impacted his field, as evidenced by high citation counts and inclusion in major EU-funded research projects[2].

*Professional Recognition: He holds a senior research position at a prestigious institution (Mines Paris - PSL) and has received professional recognition within his field.

*Significant Contributions: He co-developed LQL-Equiv software[10][11], which is used in radiotherapy centers across more than 20 countries[2], representing a significant practical contribution to medical physics.

Supporting Evidence for Notability

Published Research and Citations. Voyant's research spans multiple disciplines including artificial intelligence, solar energy forecasting, and medical physics[2]. His work has been published in reputable journals and has achieved significant citation impact, with over 7,000 citations[3].

International Recognition. His research has been incorporated into major EU-funded projects such as SAPHIR, Fine4cast, and TILOS[2], indicating international recognition of his expertise.

Practical Impact. The LQL-Equiv software he co-developed has been adopted by clinical and academic centers globally[2], demonstrating real-world impact beyond academic circles.

Limitations and Concerns

Limited Mainstream Media Coverage The primary weakness in Cyril Voyant's notability profile is the limited coverage in mainstream news media or independent journalistic sources. Most available sources are academic or professional in nature. This is typical and conditionally acceptable for academic biographies[8].

Academic vs. Popular Recognition While Voyant has clear academic notability, his recognition is primarily within scientific and professional communities rather than among the broader public. This is typical and conditionally acceptable for academic biographies[8].

Conclusion

Cyril Voyant likely meets Wikipedia's notability standards, particularly under the academic-specific guidelines. His extensive publication record, high citation impact, international research collaborations, and practical contributions to medical physics through software development collectively establish his notability within the scientific community.

The existence of a French Wikipedia page[1] further suggests that Wikipedia editors have previously recognized his notability. While he may not have extensive mainstream media coverage, the academic notability guidelines specifically account for scholars whose primary impact is within their professional fields rather than popular culture.

For English Wikipedia inclusion, editors would likely need to rely primarily on academic and professional sources, which is typical and acceptable for academic biographies. The key requirement is that these sources provide substantial, independent coverage of his work and contributions, which satisfied through his extensive publication record, citation impact, and recognition within multiple research communities.

Sources

[1] Cyril Voyant - Wikipédia https://fr.wikipedia.org/wiki/Cyril_Voyant

[2] Cyril Voyant - Google Sites https://sites.google.com/view/cyrilvoyant/

[3] Cyril Voyant‬ - ‪Google Scholar‬ http://scholar.google.com/citations?user=aUlP6agAAAAJ&hl=en

[4] Hybrid VMAT-3DCRT as breast cancer treatment improvement tool https://www.nature.com/articles/s41598-023-50538-x

[5] Cancer Top 100 of 2024 - Nature https://www.nature.com/collections/hjadfcddje

[6] Delighted to share this unexpected recognition! - LinkedIn https://www.linkedin.com/pulse/delighted-share-unexpected-recognition-cyril-voyant-96dte

[7] Wikipedia:Notability https://en.wikipedia.org/wiki/Wikipedia:Notability

[8] Wikipedia:Notability (academics) https://en.wikipedia.org/wiki/Wikipedia:Notability_(academics)

[9] Notability For Academics - WhiteHatWiki https://whitehatwiki.com/guide/notability-for-academics/

[10] [PDF] A Short Synthesis Concerning Biological Effects and Equivalent ... https://arxiv.org/pdf/1704.06457.pdf

[11] cyrilvoyant/LQ-Equiv: Biological effects and equivalent ... - GitHub https://github.com/cyrilvoyant/LQ-Equiv

[13] Cyril Voyant, University of Corsica https://www.radiooncologyjournal.com/editors/cyril-voyant

[14] Cyril Voyant | Longdom Publishing SL | 2794 https://www.longdom.org/reviewer/cyril-voyant-2794

[15] Cyril Voyant - CV Hal https://cv.hal.science/cyril-voyant

[16] Cyril Voyant - Ecole des Mines ParisTech - University of Corsica https://univ-corse.academia.edu/CyrilVoyant

[18] Jamie Bright's Post - LinkedIn https://www.linkedin.com/posts/jmbright_feel-really-proud-that-my-team-and-i-won-activity-7241473861119082496-mKth

[19] Cyril Voyant - Full Professor (Directeur de Recherche) at Mines Paris https://fr.linkedin.com/in/cyril-voyant-2a7767192

[20] Cyril Voyant (0000-0003-0242-7377) - ORCID https://orcid.org/0000-0003-0242-7377

[21] Advances in solar forecasting: Computer vision with deep learning https://www.osti.gov/pages/biblio/1997245

[22] Advanced FAQ - Wikipedia Notability Guidelines - YouTube https://www.youtube.com/watch?v=-rP6iEtCJ_M

[23] Machine learning methods for solar radiation forecasting: A review https://www.sciencedirect.com/science/article/abs/pii/S0960148116311648

[24] Machine Learning-based Renewable Energy Adaptation https://www.mecs-press.org/ijem/ijem-v15-n4/v15n4-5.html

[25] Guide to Wikipedia Notability - Legalmorning https://www.legalmorning.com/guide-to-wikipedia-notability-legalmorning/

[26] Forecasting rooftop photovoltaic solar power using machine ... https://www.sciencedirect.com/science/article/pii/S2352484725001490

[27] Wikipedia Page Creation & Wikipedia “Notability” - WhiteHatWiki https://whitehatwiki.com/wikipedia-page-creation-wikipedia-notability/

[30] List of publications from Cyril Voyant | Page 1 | Open Access https://research.amanote.com/publication/search?author=Cyril+Voyant&page=1

[31] Exciting New Chapter! | Cyril Voyant - LinkedIn https://www.linkedin.com/posts/cyril-voyant-2a7767192_exciting-new-chapter-after-many-incredible-activity-7241146120935002112-H8bw

[32] Cyril Voyant - Loop (Frontiers) https://loop.frontiersin.org/people/2921906/overview

[33] Hybrid VMAT-3DCRT as breast cancer treatment improvement tool ... https://digger.iulm.it/discovery/fulldisplay?docid=cdi_doaj_primary_oai_doaj_org_article_ab8f1ee63e0d4503801b5501ef5f664c&context=PC&vid=39IUL_INST%3A39IULM_VIEW&lang=it&search_scope=MyInst_and_CI&adaptor=Primo+Central&tab=Everything&query=null%2C%2CCopyright+%C2%A9+2020+The+Author%28s%29.+Published+by+Elsevier+Ltd.+This+is+an+Open+Access+article+under+the+CC+BY+4.0+license.+Published+by+Elsevier+Ltd..+All+rights+reserved.%2CAND&mode=advanced&offset=0

[34] Articles in 2024 | Scientific Reports - Nature https://www.nature.com/srep/articles?searchType=journalSearch&sort=PubDate&type=article&year=2024&page=1530

[36] Independent News Sites & News Verification - Research Guides https://libguides.rowan.edu/c.php?g=694319

[37] Perception and Recognition of Clinical Medical Physicist Roles and ... https://pubmed.ncbi.nlm.nih.gov/38223800/

[39] Cyril Voyant's Post - LinkedIn https://www.linkedin.com/posts/cyril-voyant-2a7767192_radiotherapy-medicalphysics-linearquadraticmodel-activity-7265646271929970688-Wm7l

[42] On the importance of clearsky model in short-term solar radiation ... https://www.sciencedirect.com/science/article/abs/pii/S0038092X25002531

[44] On the Importance of Clearsky Model in Short-Term Solar Radiation ... https://arxiv.org/abs/2503.07647

[46] [PDF] Reuters Institute Digital News Report 2025 https://reutersinstitute.politics.ox.ac.uk/sites/default/files/2025-06/Digital_News-Report_2025.pdf

[53] Research Paper On Machine Learning Algorithms | PDF - Scribd https://www.scribd.com/document/780780439/Research-Paper-on-Machine-Learning-Algorithms

[55] Liste des vainqueurs des prix Ig Nobel - Wikipédia https://fr.wikipedia.org/wiki/Liste_des_vainqueurs_des_prix_Ig_Nobel

[57] Category:French physicist stubs - Wikipedia https://en.wikipedia.org/wiki/Category:French_physicist_stubs

[58] [PDF] COMPARATIVE ANALYSIS OF STATISTICAL AND ... - Theseus https://www.theseus.fi/bitstream/10024/862230/2/IoT_Thesis_Sabuj_Bhowmick.pdf

[59] Assessing the Variability and Forecastability of Solar Irradiance - arXiv https://arxiv.org/html/2506.21807

[60] Profile» DergiPark https://dergipark.org.tr/en/pub/@cyril-voyant

[61] Uncertainties in global radiation time series forecasting using ... https://www.sciencedirect.com/science/article/abs/pii/S0360544217302803

[62] Solar irradiance time series forecasting using auto-regressive and ... https://www.sciencedirect.com/science/article/abs/pii/S0306261924005981

[63] A Short Synthesis Concerning Biological Effects and Equivalent ... https://www.radiooncologyjournal.com/articles/jro-aid1005.php

[64] Biological effects and equivalent doses in radiotherapy: A software ... https://www.sciencedirect.com/science/article/pii/S1507136713010249

[65] [PDF] Biological effects and equivalent doses in radiotherapy https://journals.viamedica.pl/rpor/article/download/73509/53599

[66] Multi-horizon Irradiation Forecasting for Mediterranean Locations ... https://www.sciencedirect.com/science/article/pii/S1876610214014933

[67] Wikipedia:Notability (people) - Simple English Wikipedia, the free ... https://simple.wikipedia.org/wiki/Wikipedia:Notability_(people)

[68] Notability For Academic Journals - WhiteHatWiki https://whitehatwiki.com/guide/notability-for-academic-journals/

[69] Notability in the English Wikipedia https://en.wikipedia.org/wiki/Notability_in_the_English_Wikipedia

[70] Wikipedia:Notability (people) https://en.wikipedia.org/wiki/Wikipedia:Notability_(people)

[71] Wikipedia:Notability (awards and medals) https://en.wikipedia.org/wiki/Wikipedia:Notability_(awards_and_medals)

[72] Wikipedia Notability Guidelines Explained https://blog.reputationx.com/wikipedia-notability

[73] Wikipedia:Notability (organizations and companies) https://en.wikipedia.org/wiki/Wikipedia:Notability_(organizations_and_companies)

[74] Wikipedia:Notability (academic journals) https://en.wikipedia.org/wiki/Wikipedia:Notability_(academic_journals)

[75] Wikipedia:Notability points https://en.wikipedia.org/wiki/Wikipedia:Notability_points

[76] Wikipedia:Notability (scholars) https://en.wikipedia.org/wiki/Wikipedia:Notability_(scholars)

[77] Category:Wikipedia notability guidelines https://en.wikipedia.org/wiki/Category:Wikipedia_notability_guidelines

[78] Wikipedia Notability Guides - WhiteHatWiki https://whitehatwiki.com/guides/

[79] Notability for academics of the Global South - wikipedia - Reddit https://www.reddit.com/r/wikipedia/comments/187muqk/notability_for_academics_of_the_global_south/

-- Paleorthid (talk) 17:24, 7 August 2025 (UTC) minor edit 17:42, 7 August 2025 (UTC)

Thank you for the review! a modified and improved (I hope) version is available.

Best Regards,

Cyril Voyant Cyril voyant (talk) 18:46, 7 August 2025 (UTC)

Is it really a good idea to offer exceptions to certain groups in meeting the notability criteria threshold?

I'm referring to the section above stating "Wikipedia has specific guidelines for academics[8] that are more lenient than the general notability guideline, recognizing that many notable scholars may not receive mainstream media coverage". I'm not convinced this is a policy that benefits Wikipedia. Cyril is certainly an exceptional scientist with an illustrious career filled with significant accomplishments, but so are many otherwise unremarkable people. As this draft currently stands, I don't see anything that would distinguish it from what I would see on LinkedIn. Wikipedia is fundamentally about teaching and learning. It's a resource to obtain curiosity-inspired information and new knowledge. It's not a place to store a résumé. An article like this isn't a good fit for Wikipedia. It would be an "island article" because no other articles would provide a link to it, and the only way to access it would be to search for it directly. How many people do you think will be querying Wikipedia with this man's name? Not only will this article be unconnected to the rest of the encyclopedia, it's not going to get any traffic. If the article only contains a list of career-related accomplishments, why would I read it here instead of on a social media site tailored specifically for that sort of content that additionally has relevant networking features which Wikipedia lacks?

To reiterate, I'm not trying to disparage Cyril in any way -- he's clearly a genius and one of the best in his field -- but I don't think a Wikipedia article about him would be in the best interests of either him or Wikipedia. It just wouldn't serve a purpose in the way that other articles do. Nobody would find themselves here through hyperlinks, and there's nothing here that wouldn't also be appropriate to host on LinkedIn, Facebook, or a personal website. This would set a precedent that would open Wikipedia up to thousands of articles about similarly successful professionals who lack notoriety. Every biographical article would need a disambiguation page because every Joe Blow in the world who shares a name with a famous figure would be cluttering up the site with information that nobody aside from a hiring manager would really care to read about.

My advice to Cyril if he really wants to have a Wiki page is to do something to get himself in the newspaper. Not a prestigious academic journal -- he's already done that -- I'm talking about a non-academic puff piece printed on the same page as a Garfield strip. He's already earned respect, but he needs to acquire popularity. Nom de vileplume (talk) 10:46, 8 August 2025 (UTC)

Hello, and thank you for your honest opinion. I accept the evaluation that has been and will be made. I imagined (but this is just speculation at the moment) new sections related to variability, error metrics in solar radiation forecasting and other renewable energies topics, radiobiology, laws related to fractionation and discontinuation... So many things that are not yet fully developed on Wikipedia. I understand your response and am quite okay with it. I'm not sure how to proceed. Should I wait for an official review? Is it necessary to make changes, or should I just remove this draft? In any case, thank you for the various feedback and congratulations on the efficient and rapid review process!

Best regards,

cyril Cyril voyant (talk) 13:15, 8 August 2025 (UTC)

I have genuinely asked myself the question: why should I have a page? Yes, there are many researchers, but I do not think that this fact alone should be a reason to exclude one. I am not, and will never be, “popular” in the public sense, I leave that to influencers, and if popularity were the main criterion, most physicists would likely be excluded.

My career path is, I believe, unusual. I hold two doctorates, one in phymed & radiation–matter interaction (in France, a “Doctorat Professionnel” equivalent) and another in applied mathematics, energy and meteorology. The second earned at night while working full-time in radiotherapy. For over ten years, I held a demanding clinical position leading a functional unit, while also carrying out medical research entirely outside my professional duties, publishing papers, developing software, and teaching part-time at university. During this period, I became one of the most cited researchers in the niche field of solar resource forecasting (top 5 in that field) and ranked in the top 2 % worldwide in energy systems: all while research was not my formal job but rather a personal passion.

This pace came at a personal cost, and in 2024 I had to stop combining all these activities to protect my health. I do not claim brilliance, only persistence and dedication.

Here is just an explanation of my motivation, but I am waiting for the review to come back, and indeed, I could contribute to Wikipedia without necessarily having a dedicated biography. Cyril voyant (talk) 17:21, 8 August 2025 (UTC)

Just to add, here is a very simple example of a wiki page on potential variability (in complement of https://en.wikipedia.org/wiki/Solar_variability). Given that I am among the top 2% of most influential researchers in the field of energy, I imagine it won't be too difficult to find a colleague to improve certain sections or pages like this one.

Variability of global horizontal irradiance (GHI) refers to the magnitude and temporal structure of fluctuations in the solar energy received per unit area on a horizontal plane. Quantifying this variability is important in solar resource assessment, forecasting, and the operational integration of renewable energy into power grids.

Background – GHI combines direct beam and diffuse solar radiation, determined by the Sun’s position and modified by atmospheric conditions such as clouds, aerosols, and water vapour. Variability occurs on multiple time scales: diurnal and seasonal (governed by Earth’s rotation and axial tilt), synoptic (driven by weather systems and air mass changes), and sub-hourly (caused by fast-moving cloud fields, turbulence, and cloud-edge effects). High variability can cause rapid power ramps in photovoltaic (PV) output, affecting grid stability and reserve requirements.

Metrics and approaches – Variability is typically analysed from time series measured by pyranometers or inferred from satellite data, often referenced to a clear-sky model $I_{\mathrm {clr} }(t)$, which estimates the irradiance under cloud-free conditions. Common metrics include:

• The coefficient of variation: $\mathrm {CV} ={\frac {\sigma _{I}}{\mu _{I}}}$, where $\sigma _{I}$ and $\mu _{I}$ are the standard deviation and mean of irradiance $I(t)$ Perez, R.; Kivalov, S.; Schlemmer, J.; Hemker, K.; Renné, D. (2012). "Validation of short and medium term operational solar radiation forecasts in the US". Solar Energy. 86 (8): 2530–2538. doi:10.1016/j.solener.2012.05.016..
• The nominal variability of the clear-sky index, with $k_{c}=I/I_{\mathrm {clr} }$ and $\Delta k_{c}=k_{c}(t)-k_{c}(t-1)$, using $\sigma (\Delta k_{c})$ to quantify short-term fluctuations.
• The Variability Index (VI) of Hoff and Perez, defined as the ratio of the curve length of measured irradiance to that of the clear-sky curve over the same period, corrected for the sampling interval Hoff, T. E.; Perez, R. (2010). "Quantifying PV power output variability". Proc. 35th IEEE Photovoltaic Specialists Conference. pp. 001763–001768. doi:10.1109/PVSC.2010.5616824. {{cite conference}}: Unknown parameter |booktitle= ignored (|book-title= suggested) (help).
• Ramp-rate metrics, such as the Daily Aggregate Ramp Rate (DARR) and the Variability Score from Ramp Rate Distribution (VSRR_dist), which combine ramp magnitude and frequency Lave, M.; Kleissl, J. (2012). "Interpreting irradiance variability metrics". Solar Energy. 86 (10): 2782–2793. doi:10.1016/j.solener.2012.06.020..
• Complexity-based measures such as weighted permutation entropy (WPE), investigated as predictors of site-level forecast error Yang, D.; Bright, J. M.; Dubranna, J.; Kleissl, J. (2020). "Estimating forecastability of solar irradiance time series using weighted permutation entropy". Solar Energy. 198: 656–666. doi:10.1016/j.solener.2020.01.081..

Assumptions and limitations – Most approaches assume a well-calibrated and temporally aligned clear-sky model, quasi-stationarity over the analysis window, and minimal sensor or timestamp errors. They may be unstable at very low irradiance (e.g., sunrise/sunset) and can overestimate variability if measured and modelled series are misaligned. Entropy-based measures can have limited interpretability and require parameter tuning.

Operational relevance – Variability metrics support PV site evaluation, forecast benchmarking, and operational planning (reserve sizing, storage dispatch, curtailment). Short-horizon variability analysis informs the degree of conservatism in scheduling and flexibility procurement: high-variability environments often require larger reserves or faster ramping capability, while low-variability conditions enable leaner margins.

'

References

Cyril voyant (talk) 13:40, 8 August 2025 (UTC)

Sorry...but just two added arguments...The fact that there are many researchers should not in itself be a reason to exclude them — much like cities: there are countless ones, yet each has its place on Wikipedia because it holds its own specificities and relevance.

If, in the future, the number of requests from researchers in areas such as medical physics or solar resource forecasting became genuinely excessive (which does not seem to be the case today), the rules could always be revisited, keeping only those entries of highest value to the community.

Lastly, the idea that something should be “for one and not another” simply because one person makes the request and another does not, or because it has not been the usual practice, seems to me an insufficient reason to systematically avoid doing it when it could benefit readers.

That said, I understand your points and respect them, I simply wanted to share these additional arguments, which I believe are worth considering 2A01:CB16:2067:B5B1:0:55:C5E6:9001 (talk) 15:28, 8 August 2025 (UTC)