Omid Arhami
@omidarhami.bsky.social
#Bioinformatics PhD & #Statistics MS student @universityofga. RA @ Rohani Lab @CIDER_UGA. EE & MBA@ Sharif.
#Compbio, Modeling, #ML
(opinions R mine)
#Compbio, Modeling, #ML
(opinions R mine)
In the same way that "social network" -which was for people to interact and enrich their lives- became "social media", sooner or later, AI will become "intelligent media".
August 24, 2025 at 4:57 PM
In the same way that "social network" -which was for people to interact and enrich their lives- became "social media", sooner or later, AI will become "intelligent media".
Plot twist: Your data probably violates metric axioms.
Your tools don't check. They just compute nonsense.
Topolow bridges non-metric data to valid analysis
-Handles up to 95% sparsity
-Higher accuracy than MDS
install.packages("topolow")
Euclidify(dissimilarities)
doi.org/10.48550/arX...
#RStats
Your tools don't check. They just compute nonsense.
Topolow bridges non-metric data to valid analysis
-Handles up to 95% sparsity
-Higher accuracy than MDS
install.packages("topolow")
Euclidify(dissimilarities)
doi.org/10.48550/arX...
#RStats
August 20, 2025 at 4:30 PM
Plot twist: Your data probably violates metric axioms.
Your tools don't check. They just compute nonsense.
Topolow bridges non-metric data to valid analysis
-Handles up to 95% sparsity
-Higher accuracy than MDS
install.packages("topolow")
Euclidify(dissimilarities)
doi.org/10.48550/arX...
#RStats
Your tools don't check. They just compute nonsense.
Topolow bridges non-metric data to valid analysis
-Handles up to 95% sparsity
-Higher accuracy than MDS
install.packages("topolow")
Euclidify(dissimilarities)
doi.org/10.48550/arX...
#RStats
We explained and proved the theories of Topolow, as an Euclidean embedding algorithm for general data science. We showed it has significantly greater accuracy at transforming non-metric data to metric, a crucial step before using most statistics and machine learning tools.
github.com/omid-arhami/...
github.com/omid-arhami/...
August 5, 2025 at 2:23 PM
We explained and proved the theories of Topolow, as an Euclidean embedding algorithm for general data science. We showed it has significantly greater accuracy at transforming non-metric data to metric, a crucial step before using most statistics and machine learning tools.
github.com/omid-arhami/...
github.com/omid-arhami/...
The way we name our #manuscript revisions on @overleaf.com
July 22, 2025 at 3:19 PM
The way we name our #manuscript revisions on @overleaf.com
We tested Topolow on the classic H3N2 influenza data. Our map is similar to the lab-validated map AND our antigenic velocity vectors automatically identify cluster transitions previously found with reverse-genetics.
See analyses in our Bioinformatics paper academic.oup.com/bioinformati...
#IDSky 🧪
See analyses in our Bioinformatics paper academic.oup.com/bioinformati...
#IDSky 🧪
July 6, 2025 at 2:55 PM
We tested Topolow on the classic H3N2 influenza data. Our map is similar to the lab-validated map AND our antigenic velocity vectors automatically identify cluster transitions previously found with reverse-genetics.
See analyses in our Bioinformatics paper academic.oup.com/bioinformati...
#IDSky 🧪
See analyses in our Bioinformatics paper academic.oup.com/bioinformati...
#IDSky 🧪
Thrilled to announce our new paper in Bioinformatics. We present Topolow, a physics-inspired algorithm to create more accurate & stable antigenic maps, even from sparse data; also "antigenic velocity" showing the direction and magnitude of phenotypic changes.
🔗Paper: academic.oup.com/bioinformati...
🔗Paper: academic.oup.com/bioinformati...
June 27, 2025 at 4:12 PM
Thrilled to announce our new paper in Bioinformatics. We present Topolow, a physics-inspired algorithm to create more accurate & stable antigenic maps, even from sparse data; also "antigenic velocity" showing the direction and magnitude of phenotypic changes.
🔗Paper: academic.oup.com/bioinformati...
🔗Paper: academic.oup.com/bioinformati...
#Tehran metro is 863 sq miles, all densly populated. It's twice the size of the entire Rocky Mt park.
All 5 boroughs of NYC are 303 sq mi.
All 5 boroughs of NYC are 303 sq mi.
June 17, 2025 at 8:49 AM
#Tehran metro is 863 sq miles, all densly populated. It's twice the size of the entire Rocky Mt park.
All 5 boroughs of NYC are 303 sq mi.
All 5 boroughs of NYC are 303 sq mi.
(1/7) A fascinating editor's pick in the Journal of #Virology reveals why #avian influenza viruses may be particularly adept at jumping between species. Influenza A virus (IAV) has two groups of strains: avian IAV and human IAV; the key difference has traditionally been understood as:
April 14, 2025 at 4:34 AM
The Night Science podcast is fantastic. I enjoyed each individual episode of it I listened to.
open.spotify.com/episode/6KMh...
open.spotify.com/episode/6KMh...
66 | Michael Fischbach and the scientific decision tree
Night Science · Episode
open.spotify.com
March 3, 2025 at 12:13 AM
The Night Science podcast is fantastic. I enjoyed each individual episode of it I listened to.
open.spotify.com/episode/6KMh...
open.spotify.com/episode/6KMh...
🥹
A new generation of cancer-preventing vaccines could wipe out tumors before they form.
Learn more on #WorldCancerDay: https://scim.ag/4gk8Qmo
Learn more on #WorldCancerDay: https://scim.ag/4gk8Qmo
February 5, 2025 at 7:58 AM
🥹
www.truefood.tech
A large, but not exhaustive, database of foods scored by the amount of additives.
It doesn't show how nutritious, protein-rich, healthy,... a food is.
It's not perfect, but good for beginners.
A large, but not exhaustive, database of foods scored by the amount of additives.
It doesn't show how nutritious, protein-rich, healthy,... a food is.
It's not perfect, but good for beginners.
TrueFood Dashboard
www.truefood.tech
January 14, 2025 at 1:50 AM
www.truefood.tech
A large, but not exhaustive, database of foods scored by the amount of additives.
It doesn't show how nutritious, protein-rich, healthy,... a food is.
It's not perfect, but good for beginners.
A large, but not exhaustive, database of foods scored by the amount of additives.
It doesn't show how nutritious, protein-rich, healthy,... a food is.
It's not perfect, but good for beginners.
Such an invigorating piece of news 🙂 When I was testing a new #data analysis method to potentially contribute to #vaccine development for #HIV viruses, I accidentally saw this news. #science
Science’s 2024 Breakthrough of the Year is lenacapavir, an injectable drug that demonstrated remarkable success at preventing HIV infection with one shot every 6 months.
Learn more about this year's #BOTY and other big advances in science: scim.ag/3BrCtUn
Learn more about this year's #BOTY and other big advances in science: scim.ag/3BrCtUn
December 14, 2024 at 6:47 AM
A new paper by people I admire on ST3GAL4 driving #immune evasion in acute myeloid #leukemia by synthesizing #ligands for Siglec-9. 🧪 #science @natureportfolio.bsky.social
www.nature.com/articles/s41...
www.nature.com/articles/s41...
The glycosyltransferase ST3GAL4 drives immune evasion in acute myeloid leukemia by synthesizing ligands for the glyco-immune checkpoint receptor Siglec-9 - Leukemia
Leukemia - The glycosyltransferase ST3GAL4 drives immune evasion in acute myeloid leukemia by synthesizing ligands for the glyco-immune checkpoint receptor Siglec-9
www.nature.com
December 8, 2024 at 7:33 PM
A new paper by people I admire on ST3GAL4 driving #immune evasion in acute myeloid #leukemia by synthesizing #ligands for Siglec-9. 🧪 #science @natureportfolio.bsky.social
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Omid Arhami
Scientists, academics, researchers: We’re excited to share that @altmetric.com is now tracking mentions of your research on Bluesky! 🧪
There are already many articles for which there is more attention on Bluesky than on other comparable micro-blogging sites, meaning the academic community and the general public have clearly adopted Bluesky as one of its core places to disseminate and discuss new research.
A Place of Joy.
A Place of Joy.
December 3, 2024 at 2:10 PM
Scientists, academics, researchers: We’re excited to share that @altmetric.com is now tracking mentions of your research on Bluesky! 🧪