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Abdoulaye Diack

@diack.bsky.social

1.8K followers 1.3K following 300 posts

Program Manager ML & AI @ Google Research | Ex-Google Brain. Speaker (FR/EN) Abdoulaye.ai Opinions are my own. He/His A lot of my retweets and likes are for bookmarking purposes. 🌍 Accra, Ghana (cover photo: Dar Es Saalam, circa 2015)

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Abdoulaye Diack @diack.bsky.social · Nov 30

We recently published an open source dataset of building footprints and height estimations for the Global South. It covers ~2 billion buildings and 8 years of data derived from Sentinel 2 imagery.

Blog: shorturl.at/S8ejc
Paper: arxiv.org/abs/2310.11622
Dataset: shorturl.at/FHuQE

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Abdoulaye Diack @diack.bsky.social · 1h

you mean the buildings? if so, no it's a statics view that was generated a couple of years ago.

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Abdoulaye Diack @diack.bsky.social · 1h

Buildings in Jamaica (Source: Google Open Buildings).

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Reposted by Abdoulaye Diack

MachinePix @machinepix.bsky.social · 1d

Automated Guided Vehicles at Long Beach Container Terminal manufactured by Terex Port Solutions.

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Reposted by Abdoulaye Diack

Jeremy DeHart @jeremydehartwx.bsky.social · 1d

From a crewmember on yesterday's Teal 74 mission into now-Category 5 Hurricane #Melissa. As clear of an eye as you will see in the Atlantic basin.

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Abdoulaye Diack @diack.bsky.social · 1d

The forecast track has shifted, with landfall now expected on West Jamaica tonight or early Tuesday morning as a catastrophic Category 4+ storm. This looks really bad.

Abdoulaye Diack @diack.bsky.social · 1d

😱😱😱

cira-csu.bsky.social @cira-csu.bsky.social · 1d

Lightning flashes within the powerful eye wall of Hurricane Melissa.

Incredible imagery this morning of Melissa, a Category 5 storm, south of Jamaica.

Abdoulaye Diack @diack.bsky.social · 2d

Google Research floodhub is also predicting major flooding for Haiti and the Dominican Republic from the storm's catastrophic rainfall.
sites.research.google/floods/l/18....

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Reposted by Abdoulaye Diack

National Hurricane Center - Atlantic Alerts (UNOFFICIAL) @nhc-atlc.nws-bot.us · 2d

Atlantic Hurricane Melissa Advisory Number 20 issued at Sun, 26 Oct 2025 08:55:45 +0000
...MELISSA NOW A CATEGORY 4 HURRICANE... ...LIFE-THREATENING AND CATASTROPHIC FLASH FLOODING AND LANDSLIDES EXPECTED IN PORTIONS OF JAMAICA AND SOUTHERN HISPANIOLA THROUGH MIDWEEK...
Additional Details Here.

000WTNT33 KNHC 260855TCPAT3 BULLETINHurricane Melissa Advisory Number 20NWS National Hurricane Center Miami FL AL132025500 AM EDT Sun Oct 26 2025 ...MELISSA NOW A CATEGORY 4 HURRICANE......LIFE-THREATENING AND CATASTROPHIC FLASH FLOODING AND LANDSLIDESEXPECTED IN PORTIONS OF JAMAICA AND SOUTHERN HISPANIOLA THROUGHMIDWEEK... SUMMARY OF 500 AM EDT...0900 UTC...INFORMATION----------------------------------------------LOCATION...16.3N 76.3WABOUT 120 MI...195 KM SSE OF KINGSTON JAMAICAABOUT 280 MI...450 KM SSW OF GUANTANAMO CUBAMAXIMUM SUSTAINED WINDS...140 MPH...220 KM/HPRESENT MOVEMENT...W OR 270 DEGREES AT 5 MPH...7 KM/HMINIMUM CENTRAL PRESSURE...944 MB...27.88 INCHES WATCHES AND WARNINGS--------------------CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for...* Jamaica A Hurricane Watch is in effect for...* Southwestern peninsula of Haiti from the border with theDominican Republic to Port-Au-Prince* Cuban provinces of Granma, Santiago de Cuba, Guantanamo, andHolguin. A Tropical Storm Warning in effect for...* Southwestern peninsula of Haiti from the border with theDominican Republic to Port-Au-Prince A Hurricane Warning means that hurricane conditions are expectedsomewhere within the warning area. A warning is typically issued36 hours before the anticipated first occurrence oftropical-storm-force winds, conditions that make outsidepreparations difficult or dangerous. Preparations to protect lifeand property should be complete. A Hurricane Watch means that hurricane conditions are possiblewithin the watch area. A Tropical Storm Warning means that tropical storm conditions areexpected somewhere within the warning area within 36 hours. Interests elsewhere in Haiti, the Dominican Republic, Cuba, thesoutheastern and central Bahamas, and the Turks and Caicos Islandsshould monitor the progress of Melissa. For storm information specific to your area, please monitorproducts issued by your national meteorological service. DISCUSSION AND OUTLOOK----------------------At 500 AM EDT (0900 UTC), the center of Hurricane Melissa waslocated near latitude 16.3 North, longitude 76.3 West. Melissa ismoving toward the west near 5 mph (7 km/h). A slow westward motionis expected today, followed by a turn to the north and northeast onMonday and Tuesday. On the forecast track, the center of Melissa isexpected to move near or over Jamaica through Tuesday, acrosssoutheastern Cuba Tuesday night, and across the southeasternBahamas on Wednesday. Satellite images indicate that maximum sustained winds have rapidlyincreased to near 140 mph (220 km/h) with higher gusts. Melissa isa category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale.Continued rapid intensification is expected through tonight,followed by fluctuations in intensity. Melissa is expected to be amajor hurricane when making landfall in Jamaica Monday night orTuesday morning and southeastern Cuba late Tuesday. Hurricane-force winds extend outward up to 25 miles (35 km) from thecenter and tropical-storm-force winds extend outward up to 175 miles(280 km). The estimated minimum central pressure is 944 mb (27.88 inches). HAZARDS AFFECTING LAND----------------------Key messages for Melissa can be found in the Tropical CycloneDiscussion under AWIPS header MIATCDAT3 and WMO header WTNT43 KNHC. WIND: Tropical storm conditions are likely occuring in Jamaica,with hurricane conditions expected by Monday. Tropical stormconditions are expected in the warning area in Haiti today. Thepotential for hurricane conditions in the watch area in Haitihave diminished for today, but there is still a possibility ofhurricane conditions occurring there on Tuesday. Hurricaneconditions are possible in the watch area in eastern Cuba on Tuesdayinto Wednesday. RAINFALL: Melissa is expected to bring total rainfall of 15 to 30inches to portions of southern Hispaniola and Jamaica intoWednesday, with local maxima of 40 inches possible. Additionalheavy rainfall is likely beyond Wednesday; uncertainty at that timerange precludes exact storm totals. Catastrophic flash flooding andlandslides are probable across portions of southern Hispaniola andJamaica. For eastern Cuba, total rainfall of 6 to 12 inches, with localamounts to 18 inches, are expected into Wednesday resulting inlife-threatening flash flooding and landslides. Additional heavyrainfall is likely beyond Wednesday; uncertainty at that time rangeprecludes exact storm totals. For a complete depiction of forecast rainfall associated withMelissa, please see the National Weather Service Storm TotalRainfall Graphic, available athurricanes.gov/graphics_at3.shtml?rainqpf STORM SURGE: Life-threatening storm surge is likely along the southcoast of Jamaica late Monday through Tuesday morning. Peakstorm surge heights could reach 9 to 13 feet above ground level,near and to the east of where the center of Melissa makes landfall.This storm surge will be accompanied by large and destructive waves. There is a potential for significant storm surge along thesoutheast coast of Cuba late Tuesday or Wednesday. SURF: Swells generated by Melissa are expected to affect portions ofHispaniola, Jamaica, eastern Cuba, and the Cayman Islands during thenext several days. These swells are likely to causelife-threatening surf and rip current conditions. Please consultproducts from your local weather office. NEXT ADVISORY-------------Next intermediate advisory at 800 AM EDT.Next complete advisory at 1100 AM EDT. $$Forecaster Berg

Hurricane Melissa 5-Day Uncertainty Track Image

Hurricane Melissa 34-Knot Wind Speed Probabilities

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Reposted by Abdoulaye Diack

meteologix.com @meteologix.com · 2d

Hurricane Melissa has now rapidly intensified into a category 4 hurricane and could reach category 5. The messaging from the NHC is not mincing words, especially with regard to Jamaica, which needs to seek shelter now.

1 minute GOES-19 imagery: meteologix.com/jm/satellite...

TT

Key Messages:

1. Jamaica: Seek shelter now(highlighted by the poster). Damaging winds and heavy rainfall
today and on Monday will cause catastrophic and life-threatening
flash flooding and numerous landslides before the strongest winds
arrive Monday night and Tuesday morning. Extensive infrastructural
damage, long-duration power and communication outages, and isolation
of communities are expected. Life-threatening storm surge is likely
along portions of the southern coast Monday night and Tuesday
morning.

2. Haiti: Catastrophic and life-threatening flash flooding and
landslides are expected across southwestern Haiti through midweek,
likely causing extensive infrastructural damage and isolation
of communities. Although winds are temporarily decreasing on the
Tiburon peninsula, they could increase again across much of western
Haiti on Tuesday.

3. Dominican Republic: Heavy rainfall through midweek could produce
catastrophic flash flooding and numerous landslides in southern
portions of the country.

4. Eastern Cuba, Southeast Bahamas, and the Turks and Caicos:
Monitor Melissa closely. There is an increasing risk of a
significant storm surge, damaging winds, and heavy rainfall by the
middle of the week. In eastern Cuba, the risk of life-threatening
flash flooding and landslides is increasing. A Hurricane Watch is in
effect for portions of eastern Cuba.

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Abdoulaye Diack @diack.bsky.social · 2d

Melissa tracking and data:

ECMWF: charts.ecmwf.int/products/cyc...

Google DeepMind AI Model:

deepmind.google.com/science/go/N...

ECMWF | Charts

charts.ecmwf.int

Abdoulaye Diack @diack.bsky.social · 2d

Sobering forecast for #HurricaneMelissa from Google DeepMind's experimental Weather Lab.

The AI model's ensemble shows a high-confidence track:

Jamaica (CAT 4, ~Oct 28)

Cuba (CAT 3, ~Oct 29)

Bahamas (CAT 3, ~Oct 29)

This is a research tool. Follow official warnings in your country.
Links below.

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Reposted by Abdoulaye Diack

Sung Kim @sungkim.bsky.social · 4d

FineWiki

This is an updated and better extracted version of Wikipedia, covering 325+ languages.

Viewer: huggingface.co/spaces/Huggi...
Dataset: huggingface.co/datasets/Hug...

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Reposted by Abdoulaye Diack

NBA @nba.com · 5d

WEMBY WENT OFF ON OPENING NIGHT 🚨

👽 40 PTS
👽 15-21 FGM (71.4%)
👽 15 REB
👽 3 BLK
👽 0 TO
👽 First player in NBA history to record 40+ PTS, 15+ REB and 0 TO while shooting 70+ FG% since 1977-78!

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Reposted by Abdoulaye Diack

EUMETSAT Users @eumetsat-users.bsky.social · 6d

The storm system that caused the #tornado near Paris yesterday can be seen in Met-12 Cloud Type & Sandwich RGBs. Low top Cumulonimbus cloud with strong wind shear conditions. Via Jochen Kerkmann/EUMETView

Met-12 Cloud Type RGB with 500hPa Geopotential, 20 Oct 15:00 UTC

Met-12 Sandwich RGB with 500hPa Geopotential, 20 Oct 15:00 UTC

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Reposted by Abdoulaye Diack

Martin Steinegger 🇺🇦 @martinsteinegger.bsky.social · 6d

End-to-end protein design in the browser through evedesign. Generate and interactively explore designs in 2D/3D and export them as codon-optimized DNA. The underlying open source framework (released soon) is build to easily add new methods, more on that soon.
🌐 evedesign.bio

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Reposted by Abdoulaye Diack

Kaggle @kaggle.com · 6d

📣 Competition Launch Alert! PhysioNet - Digitization of ECG Images competition hosted by
@physionetchallenge.bsky.social

🎯 To build models that convert ECG images into digital time-series data
💰 $50,000 Prize Pool
⏰ Entry Deadline: January 15, 2026
🙏 @emoryuniversity.bsky.social, Georgia Tech

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Reposted by Abdoulaye Diack

Tom Aarsen @tomaarsen.com · 6d

🤗 Sentence Transformers is joining @hf.co! 🤗

This formalizes the existing maintenance structure, as I've personally led the project for the past two years on behalf of Hugging Face. I'm super excited about the transfer!

Details in 🧵

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Reposted by Abdoulaye Diack

EUMETSAT @eumetsat.int · 6d

Following today’s release of the 1st IASI-NG images, System Manager Jeremie Ansart explains what’s behind them in our latest video bit.ly/3WOnCKG

Led by @cnes.fr, IASI-NG continues the IASI legacy as the global reference for atmospheric spectral data - tracking gases, monitoring pollution & more.

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Reposted by Abdoulaye Diack

ECMWF @ecmwf.int · 6d

Rainfall in Ecuador is anything but predictable.

A new science blog explores how AI and physical models capture this complexity and what it means for forecasting in tropical regions.

➡️ www.ecmwf.int/en/about/med...

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Abdoulaye Diack @diack.bsky.social · 6d

Google DeepMind and UCL experts have released a 𝗳𝗿𝗲𝗲, hands-on curriculum for students. It covers the fundamentals of building and fine-tuning language models, including data preparation, neural networks, and the transformer architecture.

Learn more: www.skills.google/collections/...
#AI #MLSKY

DeepMind | Google Skills

Learn and earn with Google Skills, a platform that provides free training and certifications for Google Cloud partners and beginners. Explore now.

www.skills.google

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Abdoulaye Diack @diack.bsky.social · 6d

very elegant way to put it... "strong programming skills (even in cases where support from an LLM is not available)"

Abdoulaye Diack @diack.bsky.social · 7d

Kind of a big deal. We can now monitor and track air pollution by the hour. ESA Sentinel-4 can beam back hourly data on nitrogen dioxide hotspots & sulfur dioxide plumes. This is a massive leap for public health & air quality forecasting. See Northern Italy 😱

www.esa.int/Applications...
Credit: ESA

This image depicts tropospheric nitrogen dioxide with clear pollution hotspots visible along the Mediterranean coast and over Italy’s Po Valley.

This image shows a vertical column of ozone. While ozone high up in the stratosphere plays a crucial role in shielding life on Earth from harmful ultraviolet radiation, ozone in the lower atmosphere acts as a pollutant, contributing to poor air quality and respiratory problems.

This image presents a vertical column density of sulphur dioxide. A distinct plume can be seen emerging from Mount Etna in Italy and drifting south-eastwards over the sea. Although Etna is currently relatively calm, much larger plumes are typically observed during periods of heightened volcanic activity.

Abdoulaye Diack @diack.bsky.social · 7d

That's also my assumption. Btw congrats on the "for you" algo, it's so good!

Reposted by Abdoulaye Diack

Sebastian Raschka (rasbt) @sebastianraschka.com · 8d

🔗 Mixture of Experts (MoE): github.com/rasbt/LLMs-f...

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Reposted by Abdoulaye Diack

Joseph O'Rourke @josephorourke.bsky.social · Sep 17

A monohedral tiling of the plane by "spandrelized" squares.
Each unit square includes a circular arc of a 1/2-radius circle centered at each vertex.
Adams, Colin. "Spandrelized Tilings." Amer. Math. Monthly 132, no. 3 (2025): 199-217.

doi.org/10.1080/0002...
#MathSky #Mathematics #Geometry #Tiling

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