Centrum Wiskunde & Informatica
@cwi-amsterdam.bsky.social
Centrum Wiskunde & Informatica (CWI) is the national research institute for mathematics and computer science in the Netherlands since 1946. Skeets Dutch/English.
Jordi Weggemans (CWI, QuSoft) defended his thesis Quantum vs Classical Resources in Computational Complexity on 13 November at UvA. His PhD research explored how quantum and classical computational resources compare.
Congrats, Jordi! 🎉
More info: edu.nl/xkkyv
Congrats, Jordi! 🎉
More info: edu.nl/xkkyv
November 19, 2025 at 2:17 PM
Jordi Weggemans (CWI, QuSoft) defended his thesis Quantum vs Classical Resources in Computational Complexity on 13 November at UvA. His PhD research explored how quantum and classical computational resources compare.
Congrats, Jordi! 🎉
More info: edu.nl/xkkyv
Congrats, Jordi! 🎉
More info: edu.nl/xkkyv
The latest ERCIM News explores ‘Inclusive Digital Futures’. From CWI, Mae Sosto and Laura Hollink, together with Delfina Sol Martinez Pandiani (UvA), show how large language models can reproduce biased associations for, e.g., queer and nonbinary identities.
Read more 🌈: edu.nl/ehbcw
Read more 🌈: edu.nl/ehbcw
November 8, 2025 at 1:27 AM
The latest ERCIM News explores ‘Inclusive Digital Futures’. From CWI, Mae Sosto and Laura Hollink, together with Delfina Sol Martinez Pandiani (UvA), show how large language models can reproduce biased associations for, e.g., queer and nonbinary identities.
Read more 🌈: edu.nl/ehbcw
Read more 🌈: edu.nl/ehbcw
This week, at the 14th General Assembly of the Quantum Software Consortium (QSC) in Leiden – opened by our colleague Ronald de Wolf – Freek Witteveen (CWI, QuSoft) presented work on Randomized truncation of quantum states, improving accuracy without using extra memory. Great!
See edu.nl/kqeh9
See edu.nl/kqeh9
November 8, 2025 at 1:11 AM
This week, at the 14th General Assembly of the Quantum Software Consortium (QSC) in Leiden – opened by our colleague Ronald de Wolf – Freek Witteveen (CWI, QuSoft) presented work on Randomized truncation of quantum states, improving accuracy without using extra memory. Great!
See edu.nl/kqeh9
See edu.nl/kqeh9
Researchers wrapped up Satellite Workshop 2 in Amsterdam last week, the final event of the Learning-Enhanced Optimization Research Semester Programme, co-organized by CWI. Highlights included maths for fair housing, precision medicine and ALS & Alzheimer's research. Thanks to all!
See edu.nl/nrvct
See edu.nl/nrvct
November 8, 2025 at 1:03 AM
Researchers wrapped up Satellite Workshop 2 in Amsterdam last week, the final event of the Learning-Enhanced Optimization Research Semester Programme, co-organized by CWI. Highlights included maths for fair housing, precision medicine and ALS & Alzheimer's research. Thanks to all!
See edu.nl/nrvct
See edu.nl/nrvct
Next week: the 49th Woudschoten Conference (24–26 Sept)! CWI has long supported this key meeting of the Dutch & Flemish numerical mathematics community. Thanks to the organizing team! 🌟 edu.nl/j9ax9
September 18, 2025 at 10:20 AM
Next week: the 49th Woudschoten Conference (24–26 Sept)! CWI has long supported this key meeting of the Dutch & Flemish numerical mathematics community. Thanks to the organizing team! 🌟 edu.nl/j9ax9
Last week, CWI’s Peter Boncz and co-authors received the 2025 VLDB Test of Time Award for their influential paper 'How Good Are Query Optimizers, Really?’ Congrats! 🎉
More info: edu.nl/93h4e
More info: edu.nl/93h4e
September 11, 2025 at 3:32 PM
Last week, CWI’s Peter Boncz and co-authors received the 2025 VLDB Test of Time Award for their influential paper 'How Good Are Query Optimizers, Really?’ Congrats! 🎉
More info: edu.nl/93h4e
More info: edu.nl/93h4e
🎬 This week, our colleague Ronald de Wolf (CWI, UvA, QuSoft) was interviewed at CWI by Michael Masters for a documentary on how to deal with exponential-time computations.
Looking forward to the release!
Looking forward to the release!
September 10, 2025 at 2:30 PM
🎬 This week, our colleague Ronald de Wolf (CWI, UvA, QuSoft) was interviewed at CWI by Michael Masters for a documentary on how to deal with exponential-time computations.
Looking forward to the release!
Looking forward to the release!
Programming language Python - from Guido van Rossum’s CWI side project in the 80s to code running even on Mars! This week, 'Python: The Documentary' premiered at PyCon Greece 2025. 🎥 Watch it online now: edu.nl/qwy8w
August 29, 2025 at 4:16 PM
Programming language Python - from Guido van Rossum’s CWI side project in the 80s to code running even on Mars! This week, 'Python: The Documentary' premiered at PyCon Greece 2025. 🎥 Watch it online now: edu.nl/qwy8w
#ThrowbackThursday 🔒
In 2013, Marten van Dijk and colleagues introduced Path ORAM, an algorithm that hides how data is accessed in memory.
The technique has since become part of Signal, protecting the privacy of millions worldwide. More: edu.nl/vw94w
#privacy #computersecurity #researchimpact
In 2013, Marten van Dijk and colleagues introduced Path ORAM, an algorithm that hides how data is accessed in memory.
The technique has since become part of Signal, protecting the privacy of millions worldwide. More: edu.nl/vw94w
#privacy #computersecurity #researchimpact
August 21, 2025 at 10:12 AM
#ThrowbackThursday 🔒
In 2013, Marten van Dijk and colleagues introduced Path ORAM, an algorithm that hides how data is accessed in memory.
The technique has since become part of Signal, protecting the privacy of millions worldwide. More: edu.nl/vw94w
#privacy #computersecurity #researchimpact
In 2013, Marten van Dijk and colleagues introduced Path ORAM, an algorithm that hides how data is accessed in memory.
The technique has since become part of Signal, protecting the privacy of millions worldwide. More: edu.nl/vw94w
#privacy #computersecurity #researchimpact
What if you could guide your internet traffic by region? First public #SCION demo in the Netherlands presented by CWI and #NLnet, live at CWI’s library. 🔗 edu.nl/n9yqg
August 14, 2025 at 2:47 PM
What if you could guide your internet traffic by region? First public #SCION demo in the Netherlands presented by CWI and #NLnet, live at CWI’s library. 🔗 edu.nl/n9yqg
Opera, tech & community — the EU-funded TRACTION project showed how co-creation can spark cultural democracy. A unique experiment across art, tech & inclusion, featured as one of 40 landmark EU research projects. Full story here👉https://edu.nl/npbcb
🎭👥💻 #EUfunded #CulturalDemocracy #DigitalInclusion
🎭👥💻 #EUfunded #CulturalDemocracy #DigitalInclusion
August 7, 2025 at 10:06 AM
Opera, tech & community — the EU-funded TRACTION project showed how co-creation can spark cultural democracy. A unique experiment across art, tech & inclusion, featured as one of 40 landmark EU research projects. Full story here👉https://edu.nl/npbcb
🎭👥💻 #EUfunded #CulturalDemocracy #DigitalInclusion
🎭👥💻 #EUfunded #CulturalDemocracy #DigitalInclusion
Congrats to Ute Ebert (CWI, @tue.nl) on winning the Von Engel & Franklin Prize for her groundbreaking work on sparks, streamers and lightning.
Her research sheds light on how fast, branching discharges form and what effects they trigger.
Awarded at ICPIG 2025, Aix-en-Provence, France. edu.nl/whyq4
Her research sheds light on how fast, branching discharges form and what effects they trigger.
Awarded at ICPIG 2025, Aix-en-Provence, France. edu.nl/whyq4
July 28, 2025 at 10:07 AM
Congrats to Ute Ebert (CWI, @tue.nl) on winning the Von Engel & Franklin Prize for her groundbreaking work on sparks, streamers and lightning.
Her research sheds light on how fast, branching discharges form and what effects they trigger.
Awarded at ICPIG 2025, Aix-en-Provence, France. edu.nl/whyq4
Her research sheds light on how fast, branching discharges form and what effects they trigger.
Awarded at ICPIG 2025, Aix-en-Provence, France. edu.nl/whyq4
How are advanced computational methods reshaping science, industry and policy? Find out during the Computational Science Lecture Series this October in Utrecht. Daan Crommelin and Benjamin Sanderse are talking about Uncertainty Quantification and Scientific Machine Learning. More info: edu.nl/66u9r
July 28, 2025 at 9:59 AM
How are advanced computational methods reshaping science, industry and policy? Find out during the Computational Science Lecture Series this October in Utrecht. Daan Crommelin and Benjamin Sanderse are talking about Uncertainty Quantification and Scientific Machine Learning. More info: edu.nl/66u9r
“Quantum computing was the coolest subject I’d ever studied,” says Stacey Jeffery (CWI, QuSoft, UvA). In NWO’s magazine Onderzoek she reflects on her journey, research in quantum algorithms, and founding WIQD to promote inclusivity.
See: 🔗 edu.nl/qan8u
#QuantumComputing #WIQD #Inclusion #Science
See: 🔗 edu.nl/qan8u
#QuantumComputing #WIQD #Inclusion #Science
July 16, 2025 at 5:50 PM
“Quantum computing was the coolest subject I’d ever studied,” says Stacey Jeffery (CWI, QuSoft, UvA). In NWO’s magazine Onderzoek she reflects on her journey, research in quantum algorithms, and founding WIQD to promote inclusivity.
See: 🔗 edu.nl/qan8u
#QuantumComputing #WIQD #Inclusion #Science
See: 🔗 edu.nl/qan8u
#QuantumComputing #WIQD #Inclusion #Science
🎓 PhD School on Machine Learning & Optimization
Join us at CWI (Amsterdam), 2-4 September 2025
As part of CWI’s Research Semester on Learning-Enhanced Optimization, this 3-day PhD School is open to PhDs, postdocs and early-career researchers.
📆 Register by 24 August
🔗 edu.nl/jnhq4
Join us at CWI (Amsterdam), 2-4 September 2025
As part of CWI’s Research Semester on Learning-Enhanced Optimization, this 3-day PhD School is open to PhDs, postdocs and early-career researchers.
📆 Register by 24 August
🔗 edu.nl/jnhq4
July 9, 2025 at 12:46 PM
🎓 PhD School on Machine Learning & Optimization
Join us at CWI (Amsterdam), 2-4 September 2025
As part of CWI’s Research Semester on Learning-Enhanced Optimization, this 3-day PhD School is open to PhDs, postdocs and early-career researchers.
📆 Register by 24 August
🔗 edu.nl/jnhq4
Join us at CWI (Amsterdam), 2-4 September 2025
As part of CWI’s Research Semester on Learning-Enhanced Optimization, this 3-day PhD School is open to PhDs, postdocs and early-career researchers.
📆 Register by 24 August
🔗 edu.nl/jnhq4
Same question. Same AI. Different answer. CWI’s @Davide Ceolin and Inria colleagues found that the language you use can strongly influence how LLMs like ChatGPT respond. This poses a risk for global companies relying on multilingual AI.
🔗 Read the story: edu.nl/txqja
🔗 Read the story: edu.nl/txqja
July 7, 2025 at 2:36 PM
Same question. Same AI. Different answer. CWI’s @Davide Ceolin and Inria colleagues found that the language you use can strongly influence how LLMs like ChatGPT respond. This poses a risk for global companies relying on multilingual AI.
🔗 Read the story: edu.nl/txqja
🔗 Read the story: edu.nl/txqja
HELIOS, led by AMOLF with DIFFER & CWI, received funding from NWO-I’s new Strategic Renewal Fund 🎉. Together we want to design ultra-efficient perovskite solar cells with up to 20 layers. CWI leads the AI effort.
edu.nl/73ryx
#AI #solar #perovskite #solarenergy
edu.nl/73ryx
#AI #solar #perovskite #solarenergy
June 30, 2025 at 5:25 PM
HELIOS, led by AMOLF with DIFFER & CWI, received funding from NWO-I’s new Strategic Renewal Fund 🎉. Together we want to design ultra-efficient perovskite solar cells with up to 20 layers. CWI leads the AI effort.
edu.nl/73ryx
#AI #solar #perovskite #solarenergy
edu.nl/73ryx
#AI #solar #perovskite #solarenergy
👥🍽️ Conversations in full flow at #CHIWORK25 — great company, inspiring ideas!
As the final sessions wrap up, we’re weaving people, research, tech & purpose here in Amsterdam 🧵
🔗 Explore CHIWORK: edu.nl/da4u7
#HCI #FutureWork #Amsterdam
As the final sessions wrap up, we’re weaving people, research, tech & purpose here in Amsterdam 🧵
🔗 Explore CHIWORK: edu.nl/da4u7
#HCI #FutureWork #Amsterdam
June 25, 2025 at 2:25 PM
👥🍽️ Conversations in full flow at #CHIWORK25 — great company, inspiring ideas!
As the final sessions wrap up, we’re weaving people, research, tech & purpose here in Amsterdam 🧵
🔗 Explore CHIWORK: edu.nl/da4u7
#HCI #FutureWork #Amsterdam
As the final sessions wrap up, we’re weaving people, research, tech & purpose here in Amsterdam 🧵
🔗 Explore CHIWORK: edu.nl/da4u7
#HCI #FutureWork #Amsterdam
Ronald de Wolf and Stacey Jeffery (CWI/UvA/QuSoft) are organizing a workshop on quantum algorithms this week at STOC in Prague - a top theoretical CS conference. With speakers from MIT (like Alexander Schmidhuber, 📸), Stanford, Nagoya & more.
🔗 edu.nl/3d9kn (workshop)
🔗 edu.nl/6k4qf (STOC 2025)
🔗 edu.nl/3d9kn (workshop)
🔗 edu.nl/6k4qf (STOC 2025)
June 25, 2025 at 12:10 PM
Ronald de Wolf and Stacey Jeffery (CWI/UvA/QuSoft) are organizing a workshop on quantum algorithms this week at STOC in Prague - a top theoretical CS conference. With speakers from MIT (like Alexander Schmidhuber, 📸), Stanford, Nagoya & more.
🔗 edu.nl/3d9kn (workshop)
🔗 edu.nl/6k4qf (STOC 2025)
🔗 edu.nl/3d9kn (workshop)
🔗 edu.nl/6k4qf (STOC 2025)
Bienvenue @ CWI! Today, a French delegation from the Cycle Supérieur du Numérique visited us via the Institut français NL (French Embassy).
Han La Poutré introduced CWI, and Ronald Cramer gave an engaging talk on post-quantum cryptography.
Merci et au revoir!
#CSNum #PQC #cryptography
Han La Poutré introduced CWI, and Ronald Cramer gave an engaging talk on post-quantum cryptography.
Merci et au revoir!
#CSNum #PQC #cryptography
June 17, 2025 at 5:35 PM
Bienvenue @ CWI! Today, a French delegation from the Cycle Supérieur du Numérique visited us via the Institut français NL (French Embassy).
Han La Poutré introduced CWI, and Ronald Cramer gave an engaging talk on post-quantum cryptography.
Merci et au revoir!
#CSNum #PQC #cryptography
Han La Poutré introduced CWI, and Ronald Cramer gave an engaging talk on post-quantum cryptography.
Merci et au revoir!
#CSNum #PQC #cryptography
🥇 Francien Bossema wins the 2025 KHMW Thesis Award for Interdisciplinary Research for her PhD work at CWI - combining maths, imaging & cultural heritage.
She now works at @UniLeiden.
Award ceremony on 9 July at KHMW:
🔗 edu.nl/ka94p
#KHMW #PhD #interdisciplinaryresearch #heritageimaging
She now works at @UniLeiden.
Award ceremony on 9 July at KHMW:
🔗 edu.nl/ka94p
#KHMW #PhD #interdisciplinaryresearch #heritageimaging
June 4, 2025 at 2:11 PM
🥇 Francien Bossema wins the 2025 KHMW Thesis Award for Interdisciplinary Research for her PhD work at CWI - combining maths, imaging & cultural heritage.
She now works at @UniLeiden.
Award ceremony on 9 July at KHMW:
🔗 edu.nl/ka94p
#KHMW #PhD #interdisciplinaryresearch #heritageimaging
She now works at @UniLeiden.
Award ceremony on 9 July at KHMW:
🔗 edu.nl/ka94p
#KHMW #PhD #interdisciplinaryresearch #heritageimaging
How can we make AI systems reliable – even under uncertainty?
📍 Join us in Amsterdam, 19–20 June, for the Workshop on Theory of Control and Reinforcement Learning at CWI!
🔗 Register for participation by 10 June (extended deadline):
edu.nl/mnduw
#AI #RL #ControlTheory #TrustworthyAI #CWI #RSP
📍 Join us in Amsterdam, 19–20 June, for the Workshop on Theory of Control and Reinforcement Learning at CWI!
🔗 Register for participation by 10 June (extended deadline):
edu.nl/mnduw
#AI #RL #ControlTheory #TrustworthyAI #CWI #RSP
June 4, 2025 at 1:59 PM
How can we make AI systems reliable – even under uncertainty?
📍 Join us in Amsterdam, 19–20 June, for the Workshop on Theory of Control and Reinforcement Learning at CWI!
🔗 Register for participation by 10 June (extended deadline):
edu.nl/mnduw
#AI #RL #ControlTheory #TrustworthyAI #CWI #RSP
📍 Join us in Amsterdam, 19–20 June, for the Workshop on Theory of Control and Reinforcement Learning at CWI!
🔗 Register for participation by 10 June (extended deadline):
edu.nl/mnduw
#AI #RL #ControlTheory #TrustworthyAI #CWI #RSP
Electric sparks may look simple - but simulating them is anything but.
Congrats to Jannis Teunissen on receiving the 2024 Noah Hershkowitz Early Career Award 🏆 from Plasma Sources Science and Technology journal (@ioppublishing.bsky.social), for his groundbreaking simulations!
See: edu.nl/yxgat
Congrats to Jannis Teunissen on receiving the 2024 Noah Hershkowitz Early Career Award 🏆 from Plasma Sources Science and Technology journal (@ioppublishing.bsky.social), for his groundbreaking simulations!
See: edu.nl/yxgat
May 15, 2025 at 4:39 PM
Electric sparks may look simple - but simulating them is anything but.
Congrats to Jannis Teunissen on receiving the 2024 Noah Hershkowitz Early Career Award 🏆 from Plasma Sources Science and Technology journal (@ioppublishing.bsky.social), for his groundbreaking simulations!
See: edu.nl/yxgat
Congrats to Jannis Teunissen on receiving the 2024 Noah Hershkowitz Early Career Award 🏆 from Plasma Sources Science and Technology journal (@ioppublishing.bsky.social), for his groundbreaking simulations!
See: edu.nl/yxgat
A tilted photo, but a perfectly balanced moment: two Gödel Prize winners - Thomas Rothvoss (University of Washington) and Ronald de Wolf (CWI & UvA, in green) - in one frame. Yesterday, Rothvoss gave his CWI Distinguished Lecture at CWI, introduced by Daniel Dadush. See: edu.nl/wgja6
May 15, 2025 at 4:31 PM
A tilted photo, but a perfectly balanced moment: two Gödel Prize winners - Thomas Rothvoss (University of Washington) and Ronald de Wolf (CWI & UvA, in green) - in one frame. Yesterday, Rothvoss gave his CWI Distinguished Lecture at CWI, introduced by Daniel Dadush. See: edu.nl/wgja6
Yesterday, during ICT Open, @hannes.muehleisen.org received the Dutch Prize for ICT research 2025. Congratulations! 🎉https://edu.nl/yv4nn
April 17, 2025 at 3:32 PM
Yesterday, during ICT Open, @hannes.muehleisen.org received the Dutch Prize for ICT research 2025. Congratulations! 🎉https://edu.nl/yv4nn