@markomanka

Medical Doctor, researcher, entrepreneur, philanthropist... or whatever you think may best apply. Interested in complexity, real world challenges, ...people.

 Geneva, Switzerland
linkedin.com/in/mmanca
Joined May 2009
  • Tweets40.8K
  • Following1.1K
  • Followers1.5K
275Media
arxiv.org/abs/2209.11793

Clique Homology is QMA1-hard

We tackle the long-standing question of the computational complexity of determining homology groups of simplicial complexes, a fundamental task in computational topology, posed by Kaibel and...

arxiv.org
Jonathan Oppenheim@postquantum4 Aug 2023
Supersymmetry may have not been discovered at CERN, but Tamara Kohler, a @UCLQuantum alumna, used supersymmetric quantum mechanics to prove that an interesting problem used in data analysis called clique homology, is difficult to solve on a quantum computer. #IfQ2023
Tamara Kohler in front of her title slide.

ALT Tamara Kohler in front of her title slide.

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New research shows that giving better healthcare to low-income mothers has cascading effects across generations—improving health outcomes not only for them and their children, but for their grandchildren too! aeaweb.org/articles?id=10.12…

Multigenerational Impacts of Childhood Access to the Safety Net: Early Life Exposure to Medicaid...

(January 2023) - We examine multigenerational impacts of positive in utero health interventions using a new research design that exploits sharp increases in prenatal Medicaid eligibility that...

aeaweb.org
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IT project failure, termination, and the marginal cost trap journalmodernpm.com/article-…
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"For any non-convex problem, there exists an optimal, benign autoencoder (BAE) extracting a lower-dimensional data representation that is strictly beneficial" arxiv.org/abs/2210.00637
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The Invariant Set Postulate: A New Geometric Framework for the Foundations of Quantum Theory and the Role Played by Gravity arxiv.org/abs/0812.1148 "What physics needs is not a quantum theory of gravity – but rather a gravitational theory of the quantum" youtu.be/GqeTTAFjDYY
Sabine Hossenfelder
@skdh14 Oct 2022
My friend and colleague Tim Palmer explains how he tries to make sense of quantum mechanics iai.tv/articles/tim-palmer-q…

Chaos theory eliminates quantum uncertainty

Two of the key founders of quantum physics, Einstein and Schrödinger, were deeply sceptical of its implications about uncertainty and the nature of reality. Today, the orthodox reading is that...

iai.tv
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The great Paul Embrechts w/collaborators just proved the dominance of 1/n under v. fat tails, something I didn't realize was never proved. arxiv.org/pdf/2208.08471.pdf The proof is along the lines of the inequality quizzes of the late Alexander Bogomolny, bless his memory. #RWRI
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This figure shows how grow -> pool -> share ... repeat makes you better off than keeping it all for yourself. doi.org/10.1098/rsta.2020.04… It's what's behind farmersfable.org, @Marc_Elsberg. Please share, it's for your own good ;-)
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Today, we reached 200 organisations interested in joining a coalition to reform #ResearchAssessment ! The call for expressions of interest is still open here: ➡️europa.eu/!gy8BU3 Let’s keep sharing this link 📢
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A Transistor for Sound Points Toward Whole New Electronics :“Topological” acoustic transistor suggests circuits with dissipationless flow of electricity or light. Read more on @IEEESpectrum: spectrum.ieee.org/topologica…

A Transistor for Sound Points Toward Whole New Electronics

The goal is to make electronic transistors from "topological materials"—ones whose electrical currents experience virtually no resistance. This is a hard problem. But one inroad appears to be by...

spectrum.ieee.org
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A list of public identity utilities github.com/trustoverip/utili…
Drummond Reed@drummondreed25 Jan 2022
The Trust Over IP (ToIP) Foundation just announced two new foundational documents — Introduction to ToIP V2.0 and Design Principles for the ToIP Stack V1.0 — that explain the rationale for the ToIP stack more succinctly than ever before. trustoverip.org/blog/2022/01…
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Link to the paper cell.com/patterns/fulltext/S…

Data and its (dis)contents: A survey of dataset development and use in machine learning research

Datasets have become a critical component in the advancement of machine learning research. The ways in which such datasets are collected, constructed, and shared play a significant role in shaping...

cell.com
Deb Raji@rajiinio13 Nov 2021
We just published an extended version of the Data & its (Dis)contents survey paper in @Patterns_CP! Data has always been a critical aspect of machine learning but remains overlooked, under-considered and extensively mishandled in practice and pretty much ignored in theory. Why?
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Marco Manca retweeted
iang
@iang_fc5 Mar 2021
How to Issue a Central Bank Digital Currency David Chaum, Christian Grothoff, Thomas Moser snb.ch/n/mmr/reference/worki…
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Lectures done! This course is designed as a complement to a basic course in control, and goes through some of the mathematics that underpins classical frequency domain and state-space methods. @CSSIEEE youtube.com/playlist?list=PL…

FRTF15: Control Theory

Complementary course to a basic course in control. Goes through some of the mathematics that underpins classical frequency domain and state-space methods. Fu...

youtube.com
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Marco Manca retweeted
Teppo Felin@teppofelin3 Mar 2021
Most writing on AI & machine learning is hot air - this piece by Judea Pearl isn't "The seven tools of causal inference, with reflections on machine learning" dl.acm.org/doi/pdf/10.1145/3… @CACMmag
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Governance is load balancing, edge computing edition. iotforall.com/how-ai-is-tran…

How AI Is Transforming Manufacturing and Industrial IoT | IoT For All

iotforall.com
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Fernanda Pinheiro@fepinheiromycin4 Mar 2021
Metabolic fitness models as a tool for evolutionary predictions ✨ Our 'Metabolic fitness landscapes predict the evolution of antibiotic resistance' is out!! Yey!! 🤓😃 1/n nature.com/articles/s41559-0… #Evolution #FitnessModel #AntibioticResistance @NatureEcoEvo

Metabolic fitness landscapes predict the evolution of antibiotic resistance

Nature Ecology & Evolution - This study develops metabolic fitness models that integrate drug action with evolutionary response to predict growth rates of resistance mutations and prevalent...

nature.com
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Today's lecture introduces the method of dominant balance. The cool thing is that it reveals how solutions to an ODE behave asymptotically, without requiring us to actually solve the ODE or rely on an integral representation for its solution! youtu.be/GbhV3WitriM

Lecture 8: Integral representations and an introduction to dominant balance

In this transitional lecture, we finish the asymptotic analysis of ...

youtube.com
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Marty Weissman@marty__weissman5 Mar 2021
The latest great paper on the ArXiv is a solution of Hilbert's 12th problem for totally real fields, by @samit_dasgupta and Mahesh Kakde. I know Samit well, but I don't know the methods (p-adic L-functions etc.) well. In any case, I'll try to say why this is awesome. (1/n)
A group of physicists have shown that, if quantum mechanics is correct, real numbers alone cannot fully describe nature. quantamagazine.org/imaginary…

Imaginary Numbers May Be Essential for Describing Reality

A new thought experiment indicates that quantum mechanics doesn’t work without strange numbers that turn negative when squared.

quantamagazine.org
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Marco Manca retweeted
Simon Wardley@swardley5 Mar 2021
This is brilliant -> What in the World Is World-Class Engineering? — Part 2 - medium.com/nerd-for-tech/wha… by @jdcarlston
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