Latest posts tagged with #SantaScience on Bluesky
Santa’s reindeer sprang from Clement Moore’s 1823 poem! 🎅 Reindeer eyes shift color to blue in winter to cope with Arctic darkness. #SantaScience #ReindeerFacts #FestiveMagic #OutOfSyllabus #DrManasChakrabarti #DrManasGynaeOnco
25/ Wrapping it All Up 🎁🧵
This #Christmas, let’s remember #Santa is more than just a story:
Santa is a…
#Tradition
#Legend
#Face
Maybe even a #Science⁉️🧬🤷♂️
Thanks for reading about our exploration of Santa’s Facial Phenotype!
👉🏻📝 pubmed.ncbi.nlm.nih.gov/36548933
#SantaScience
🔬🎅🔚
23/ Study Participants🙌🎅
Our research wouldn’t be possible without the generous participation 👏 from individuals presenting on @googleimages.bsky.social as
🎅 #Santa
👨 #AdultMen
👴 #ElderlyBeardedMen
🕺 #ElvisPresley
🥸 #ElvisPresleyImpersonators
👇OpenFace composite facial averages
#SantaScience
21/ #StNic Facial Paradox👤🧩
🤖🖥️ #SVM analysis identified:
StNic Face = ElderlyBeardedMan!
Walter Shields = AdultMan! (❌🎅)
Could this reflect:
🤔Divergence in portrayal due to iterative promulgation & uniform depiction, shaped by culture & tradition⁉️🎅
#SantaScience
20/ Santa’s Face is Distinctive🎅
👇 #tSNE Face Vector 2D-Data Visualisation
🔵 AdultMan
🟤 ElderlyBeardedMan (EBM)
🟣 Santa
🔴 @facelabljmu.bsky.social StNic
💁🏼♂️ Santa mingles with EBM
✨ 2 discrete tSNE Santa clusters
🎩🎯 Our SVM identified #Santa with moderate-high specificity🔥
#SantaScience
18/ Model Validation 👨💻🪩🎅
We validated our approach by demonstrating our #SVM could distinguish faces of
#ElvisPresley vs #ElvisPresleyImpersonators🕺
Accuracy 0.81 | Precision 0.81 | Recall 0.87
📊AUC 0.94 (p< 0.001)
#OpenFace
#FacialRecognition
#SantaScience
17/ Santa Faces Sorting🎅🧐
Support Vector Machines (#SVM) were trained to recognise Face Vectors for each group📊
🔸70% Training : 30% Testing
🔸Grid search cross-validation
Our SVM worked like Harry Potter @harrypotterfilm.bsky.social #SortingHat (for Faces!) 🎩✨
↔️🎅Santa vs👱♂️Adult Man
#SantaScience
16/ Santa Faces Assessment🎅🖥️
#OpenFace Implementation for #SantaScience 🧬🎅
🤖Detect Face→Transform→Crop
🧠Deep neural network→128D Face Vector
Enables
🔹Clustering
🔹Similarity
🔹Classification
👇OpenFace Workflow cmusatyalab.github.io/openface
(👨🎨🖥️ @bdamos.bsky.social ©️ @carnegiemellon.bsky.social 👏)
15/ Hypothesis testing: Santa’s face is distinctive🎅
First, we compiled our study groups of individuals fulfilling eligibility criteria presenting on @googleimages.bsky.social as:
1️⃣ #Santa
2️⃣ #AdultMen
3️⃣ #ElderlyBeardedMen
4️⃣ #ElvisPresley
5️⃣ #ElvisPresleyImpersonators
#SantaScience
14/ Recap: Santa’s Face🎅
✅ Consistent Portrayal📚
✅ Recognised by Toddlers🧑🎄
✅ Spotted in Clouds☁️
✅ Seen on Echo💖
✅ 1st Phenotyped in 1823📜
✅ StNic (OG🎅)extensive study💀
To our knowledge, the modern face of #SantaClaus has never been assessed—
Until now!…🔬🎅
#SantaScience
11/ Santa Historical Phenotyping🎅
🗞️ 1823 report in🗽Troy Sentinel
🔍Earliest attempt to #phenotype Santa’s face?
As an exemplar of data harmonisation (#CDM) we mapped 200-year-old facial descriptors of #Santa to The Human Phenotype Ontology ( #HPO) 🧬🤓
#SantaScience
10/ Is #Santa an #Owl?🎅🦉
Researcher Prof Randler @unituebingen.bsky.social found Santa behavioural #phenotype aligns w/ evening owl (night chronotype)
Statistically sig. results (binomial test, p=0.013)
📄 doi.org/10.1080/0742...
@tandfresearch.bsky.social
📸 =🎅+🦉Distinctive Face⁉️
#SantaScience
7/ Toddlers Authenticate Santa🎅
🧑🎄Children as young as 3 in an Australian study said they could authenticate #Santa
🗣️Based on appearance🎅✅
🔗 doi.org/10.1080/1350...
🤔Could this ability rely on Santa's instantly recognisable Face?
#SantaScience
1/ #SantaScience 🎅🧵
🐥1st Bluesky Rodeo
🔄💬X cross-post
A year ago today @theguardian.com featured our festive research
🔎We discovered Santa has a facial #phenotype distinct from elderly bearded men
💗Evidence #Santa is real
📰 www.theguardian.com/lifeandstyle...
📝 pubmed.ncbi.nlm.nih.gov/36548933
