#manifold — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #manifold, aggregated by home.social.
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#KYIV #INSTITUTE OF #BUSINESS #AND #TECHNOLOGY advanced-search.allgraph.ro/advanced-sea... #SYMPLECTIC #MANIFOLD multi-search-tag-explorer.headlines-world.com/advanced-sea... Semantic CLUSTERS: The Bridge between Humans and Artificial Intelligence. NOSTR.com - Snort: snort.social/nprofile1qqs...
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#KYIV #INSTITUTE OF #BUSINESS #AND #TECHNOLOGY advanced-search.allgraph.ro/advanced-sea... #SYMPLECTIC #MANIFOLD multi-search-tag-explorer.headlines-world.com/advanced-sea... Semantic CLUSTERS: The Bridge between Humans and Artificial Intelligence. NOSTR.com - Snort: snort.social/nprofile1qqs...
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🧠 New preprint by Garcia-Garcia et al.: The authors show that cerebellar #GranuleCells do not simply expand #cortical activity into a high-dimensional code. Instead, they preserve low-dimensional cortical #manifold geometry while reorienting it across contexts. This rotation separates similar tasks, reduces interference, and supports flexible dual-task learning.
📄 https://www.biorxiv.org/content/10.64898/2026.03.03.709240v1.full.pdf
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[ Lumo Kaŭstikaĵo ]
Matematika diferenciala geometrio priskribanta la ebenan koverton de kurboj spuritaj de radioj disvastiĝantaj tra manifoldo. 🤓 #nerd
~briletanta~
\eZ
#miksang #dailypic #aphotoaday
#Esperanto #photography #photo
#physics #optics #mathematics #maths
#caustics #differentialgeometry
#manifold #manifolds
#shimmering -
There's a great talk by Juan Gallego on how low-dimensional #NeuralManifolds arise from biological constraints, remain invariant across states and inputs, and support cross-animal alignment. Examples span #HeadDirection rings, #gridcell tori, #MotorCortex prep vs movement, striatal timing dynamics, and C. elegans #behavior loops. Cool talk as it shows how #manifold-level structure can generalize across tasks and organisms.
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There's a great talk by Juan Gallego on how low-dimensional #NeuralManifolds arise from biological constraints, remain invariant across states and inputs, and support cross-animal alignment. Examples span #HeadDirection rings, #gridcell tori, #MotorCortex prep vs movement, striatal timing dynamics, and C. elegans #behavior loops. Cool talk as it shows how #manifold-level structure can generalize across tasks and organisms.
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There's a great talk by Juan Gallego on how low-dimensional #NeuralManifolds arise from biological constraints, remain invariant across states and inputs, and support cross-animal alignment. Examples span #HeadDirection rings, #gridcell tori, #MotorCortex prep vs movement, striatal timing dynamics, and C. elegans #behavior loops. Cool talk as it shows how #manifold-level structure can generalize across tasks and organisms.
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There's a great talk by Juan Gallego on how low-dimensional #NeuralManifolds arise from biological constraints, remain invariant across states and inputs, and support cross-animal alignment. Examples span #HeadDirection rings, #gridcell tori, #MotorCortex prep vs movement, striatal timing dynamics, and C. elegans #behavior loops. Cool talk as it shows how #manifold-level structure can generalize across tasks and organisms.
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There's a great talk by Juan Gallego on how low-dimensional #NeuralManifolds arise from biological constraints, remain invariant across states and inputs, and support cross-animal alignment. Examples span #HeadDirection rings, #gridcell tori, #MotorCortex prep vs movement, striatal timing dynamics, and C. elegans #behavior loops. Cool talk as it shows how #manifold-level structure can generalize across tasks and organisms.
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Starts reading 'A contribution to Manifold theory' by Georg Cantor. To learn what he thinks about Dimensions and manifolds. But I don't know German. I am #struggling with it.
Do you have any ideas for making this exploration easy?#german #manifold #cantor #mathematics #articles #Germanmathematics #science #analysis #geometry #help #suggestions
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🧠 New paper by Wimalasena, Pandarinath, AuYong et al: #spinal #interneuron populations form a low-dimensional #manifold that robustly organizes step cycles.
Distinct regions of the manifold mark flexion–extension transitions, and a specific “hold region” tightly controls cycle duration. Deletions emerge as failures to enter the flexor region, giving a dynamical signature of disrupted CPG function.
🌍 https://doi.org/10.1038/s41467-025-64629-y
#Neuroscience #Locomotion #SpinalCord #PopulationDynamics #CompNeuro
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🧠 New #preprint by Komi et al. (2025): Neural #manifolds that orchestrate walking and stopping. Using #Neuropixels recordings from the lumbar spinal cord of freely walking rats, they show that #locomotion arises from rotational #PopulationDynamics within a low-dimensional limit-cycle #manifold. When walking stops, the dynamics collapse into a postural manifold of stable fixed points, each encoding a distinct pose.
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📚 New article by Esparza et al. and @LMPrida : Cell-type-specific #manifold analysis discloses independent parallel #SpatialMaps in #hippocampal #CA1. Using #miniscope imaging, they show deep and superficial CA1 #PyramidalNeurons encode position and running direction via distinct ring manifolds, manipulable via #chemogenetics. Fascinating for revealing parallel, cell-type–specific spatial topologies 👌
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📚 New article by Esparza et al. and @LMPrida : Cell-type-specific #manifold analysis discloses independent parallel #SpatialMaps in #hippocampal #CA1. Using #miniscope imaging, they show deep and superficial CA1 #PyramidalNeurons encode position and running direction via distinct ring manifolds, manipulable via #chemogenetics. Fascinating for revealing parallel, cell-type–specific spatial topologies 👌
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📚 New article by Esparza et al. and @LMPrida : Cell-type-specific #manifold analysis discloses independent parallel #SpatialMaps in #hippocampal #CA1. Using #miniscope imaging, they show deep and superficial CA1 #PyramidalNeurons encode position and running direction via distinct ring manifolds, manipulable via #chemogenetics. Fascinating for revealing parallel, cell-type–specific spatial topologies 👌
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📚 New article by Esparza et al. and @LMPrida : Cell-type-specific #manifold analysis discloses independent parallel #SpatialMaps in #hippocampal #CA1. Using #miniscope imaging, they show deep and superficial CA1 #PyramidalNeurons encode position and running direction via distinct ring manifolds, manipulable via #chemogenetics. Fascinating for revealing parallel, cell-type–specific spatial topologies 👌
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📚 New article by Esparza et al. and @LMPrida : Cell-type-specific #manifold analysis discloses independent parallel #SpatialMaps in #hippocampal #CA1. Using #miniscope imaging, they show deep and superficial CA1 #PyramidalNeurons encode position and running direction via distinct ring manifolds, manipulable via #chemogenetics. Fascinating for revealing parallel, cell-type–specific spatial topologies 👌
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This year at #CCN2025 we will be showcasing our research on the classification of Mental Workload 🥵 Spatial Effects using Riemannian Manifold.
📅 When: Wednesday, August 13, 1:00 – 4:00 pm
📍 Where: CCN 2025 Conference Venue, de Brug & E-Hall
📋 What: Poster B152- It leverages advanced mathematical techniques to better understand and classify mental workloads, offering new insights into cognitive processes and potential applications in various fields such as neuroscience, psychology, and human-computer interaction.
- By utilizing Riemannian geometry, this research provides a robust framework for analyzing spatial effects in mental workload, paving the way for more accurate and efficient classification methods. This contribution not only advances our theoretical understanding but also has practical implications for improving mental workload assessment and management.
See you there! 🚀
https://laurentperrinet.github.io/publication/choplin-25-ccn/
👏 CNRS @cnrs - Aix-Marseille University - ONERA, The French Aerospace Lab CNRS
#CCN2025 #Mental #Workload #MentalWorkload #Riemannian #Manifold
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🧠✨ Just published – “The dynamics and geometry of choice in the premotor #cortex” by Genkin et al. shows how the #brain encodes #decisions. Using single-trial #NeuralRecordings, they model #decisionmaking as 1D trajectories on a high-dimensional #manifold.
Key findings:
👉 Diverse tuning curves reflect one latent decision variable
👉 Dynamics follow an attractor
👉 Geometry links sensory & cognitive coding✍️ https://www.nature.com/articles/s41586-025-09199-1
💻 https://github.com/engellab/neuralflow -
“Mezarlıklarına kavuşan insanlar var. Ellerinde çiçekler mezar taşlarına sarılan. Eski çağlarda ölüm korkulacak şey değildi diye düşünmeye dalıyorum. Ölümün ardından büyük acılar da yaşanmıyordu. Her şey bir döngüydü, mevsim gibi.” —Aslı Paköz yazdı: https://manifold.press/baharla-avunmak
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'Manifold Fitting under Unbounded Noise', by Zhigang Yao, Yuqing Xia.
http://jmlr.org/papers/v26/21-0039.html
#manifold #smoothness #estimation -
#Godot #CSharp #Subdivision #Manifold #ScreenshotLastThursdayAfternoon
Building the SDS (SubDivisionSurface) from optionally hollow cylindrical sections is working out really well
Could you imagine playing a "not-really-tower-defence" on the inner/outer surface of this?
Need-to-add: pretty much everything, sharp edges, branching...
Please-excuse: lighting, grid positioned by hand in only approximately the right place...
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'Sliced-Wasserstein Distances and Flows on Cartan-Hadamard Manifolds', by Clément Bonet, Lucas Drumetz, Nicolas Courty.
http://jmlr.org/papers/v26/24-0359.html
#manifolds #manifold #wasserstein -
The geometry of data: the missing metric tensor and the Stein score [Part II]
https://blog.christianperone.com/2024/11/the-geometry-of-data-part-ii/
#ycombinator #data_manifold #differential_geometry #diffusion_models #machine_learning #manifold #metric_tensor #riemannian_manifold #score_based_generative_models -
The geometry of data: the missing metric tensor and the Stein score [Part II]
https://blog.christianperone.com/2024/11/the-geometry-of-data-part-ii/
#ycombinator #data_manifold #differential_geometry #diffusion_models #machine_learning #manifold #metric_tensor #riemannian_manifold #score_based_generative_models -
The geometry of data: the missing metric tensor and the Stein score [Part II]
https://blog.christianperone.com/2024/11/the-geometry-of-data-part-ii/
#ycombinator #data_manifold #differential_geometry #diffusion_models #machine_learning #manifold #metric_tensor #riemannian_manifold #score_based_generative_models -
The geometry of data: the missing metric tensor and the Stein score [Part II]
https://blog.christianperone.com/2024/11/the-geometry-of-data-part-ii/
#ycombinator #data_manifold #differential_geometry #diffusion_models #machine_learning #manifold #metric_tensor #riemannian_manifold #score_based_generative_models -
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One zone in our underfloor heating system stopped working, but now I understand the whole system inside and out. I’ve learned terms like #Manifold and #Actuator, plus I know how to bleed #UFH and replace an actuator pin. Well done, me!”
#UnderfloorHeating #DIY #HomeMaintenance #HeatingSystems #TechLearning #HomeImprovement #ActuatorRepair #ManifoldTech #Plumbing #SmartHome #HeatingRepair #FixItYourself #TechSkills #DIYHome
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One zone in our underfloor heating system stopped working, but now I understand the whole system inside and out. I’ve learned terms like #Manifold and #Actuator, plus I know how to bleed #UFH and replace an actuator pin. Well done, me!”
#UnderfloorHeating #DIY #HomeMaintenance #HeatingSystems #TechLearning #HomeImprovement #ActuatorRepair #ManifoldTech #Plumbing #SmartHome #HeatingRepair #FixItYourself #TechSkills #DIYHome
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One zone in our underfloor heating system stopped working, but now I understand the whole system inside and out. I’ve learned terms like #Manifold and #Actuator, plus I know how to bleed #UFH and replace an actuator pin. Well done, me!”
#UnderfloorHeating #DIY #HomeMaintenance #HeatingSystems #TechLearning #HomeImprovement #ActuatorRepair #ManifoldTech #Plumbing #SmartHome #HeatingRepair #FixItYourself #TechSkills #DIYHome
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One zone in our underfloor heating system stopped working, but now I understand the whole system inside and out. I’ve learned terms like #Manifold and #Actuator, plus I know how to bleed #UFH and replace an actuator pin. Well done, me!”
#UnderfloorHeating #DIY #HomeMaintenance #HeatingSystems #TechLearning #HomeImprovement #ActuatorRepair #ManifoldTech #Plumbing #SmartHome #HeatingRepair #FixItYourself #TechSkills #DIYHome
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“Film tarihi bugün bir çemberi kapatır gibi gözükür: Filmler kısa doğmuştu, şimdi tekrar kısalıyor; zira uzun filmler ‘zaman darlığından’ ötürü giderek izlenemez hâle geliyor.” —Hasan Cem Çal’dan kısa film üzerine tezler:
https://manifold.press/kisa-film-uzerine-tezler -
Today my friend stopped by to chat about a project and I showed her some of the custom color tubes I have been working on. She asked how I might scale it up to make it more efficient...
Well I have been literally using clamps, scraps and masking tape... so I could do a lot to improve... but I thought I would start with this.
Drying the solvents carrying the phosphor powder is important. I took a scrap circle I had lying around and made it into a drying manifold that shoots a weak but steady stream of air across the vertical tubes dissuading gravity and encouraging drying. It mostly worked, but it was starting to get clogged with runoff phosphor goop and due to its 12mm closed in design- would be kinda difficult to clean.
So I made a new one. This one uses a larger diameter, hand pulled scrap and has 8 ports in 10mm and 12mm sizes for more tubes drying simultaneously.
#scientificglass #apparatus #neon #customcolors #manifold #glass #artist #brooklyn #nyc #fire #studio #tools
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'Manifold Learning by Mixture Models of VAEs for Inverse Problems', by Giovanni S. Alberti, Johannes Hertrich, Matteo Santacesaria, Silvia Sciutto.
http://jmlr.org/papers/v25/23-0396.html
#autoencoders #manifold #manifolds -
Junk Bin Build Lets You Test Fuel Injectors On the Cheap https://hackaday.com/2024/07/30/junk-bin-build-lets-you-test-fuel-injectors-on-the-cheap/ #TransportationHacks #automotive #teststand #injector #manifold #fuel #pump #rail #ice
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Junk Bin Build Lets You Test Fuel Injectors On the Cheap - Fiddle around with cars long enough and you’ll realize two things: first, anything... - https://hackaday.com/2024/07/30/junk-bin-build-lets-you-test-fuel-injectors-on-the-cheap/ #transportationhacks #automotive #teststand #injector #manifold #fuel #pump #rail #ice
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Manifold is a game-changer for Java developers tackling JSON files. With less boilerplate and more robustness, it's time to outshine JavaScript in JSON parsing. 💡 #JavaDevelopment #Manifold #JSON #Java #JavaScript https://debugagent.com/revolutionize-json-parsing-in-java-with-manifold
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'Representation Learning via Manifold Flattening and Reconstruction', by Michael Psenka, Druv Pai, Vishal Raman, Shankar Sastry, Yi Ma.
http://jmlr.org/papers/v25/23-0615.html
#flatnet #autoencoder #manifold -
“Paradiseꓽ Hope da Paradise Üçlemesi’nin diğer iki ayağında olduğu gibi insanın yeryüzü cehennemindeki kaybolmuşluğunun, kendisine yer bulamamışlığının imgelenişidir.” —Dilara Erdem’den Ulrich Seidl’ın Paradiseꓽ Hope adlı filmi üzerine:
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Diving into the final chapter of our #Manifold series, we've uncovered its vast capabilities, from enhancing Java development to integrating cutting-edge features. Get ready to explore GraphQL, JavaScript, and more! 🚀
#JavaDevelopment #GraphQL #java
https://debugagent.com/graphql-javascript-preprocessor-sql-and-more-in-manifold -
New preprint from our group ! 🧠 💻
*Whole-brain modelling of low-dimensional manifold modes reveals organising principle of brain dynamics*
https://www.biorxiv.org/content/10.1101/2023.11.20.567824v1#brain #modeling #autoEncoders #variationalAutoEncoder #restingStateNetworks #manifold
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Was just listening to an interesting podcast (#HardFork) on #ManifoldMarkets & #PredictionMarkets in general... keen to have a play but thought I would ask if anyone here has a #Manifold referral code they would like me to use? 😁
(For anyone thinking "eh?" - it's a betting prediction market on all aspects of life - not just sports & politics. And it's just play money. Still, probably best avoided for anyone for whom gambling is an issue!)
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Was just listening to an interesting podcast (#HardFork) on #ManifoldMarkets & #PredictionMarkets in general... keen to have a play but thought I would ask if anyone here has a #Manifold referral code they would like me to use? 😁
(For anyone thinking "eh?" - it's a betting prediction market on all aspects of life - not just sports & politics. And it's just play money. Still, probably best avoided for anyone for whom gambling is an issue!)
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Was just listening to an interesting podcast (#HardFork) on #ManifoldMarkets & #PredictionMarkets in general... keen to have a play but thought I would ask if anyone here has a #Manifold referral code they would like me to use? 😁
(For anyone thinking "eh?" - it's a betting prediction market on all aspects of life - not just sports & politics. And it's just play money. Still, probably best avoided for anyone for whom gambling is an issue!)
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Was just listening to an interesting podcast (#HardFork) on #ManifoldMarkets & #PredictionMarkets in general... keen to have a play but thought I would ask if anyone here has a #Manifold referral code they would like me to use? 😁
(For anyone thinking "eh?" - it's a betting prediction market on all aspects of life - not just sports & politics. And it's just play money. Still, probably best avoided for anyone for whom gambling is an issue!)
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`The solution of this SDE lies on the manifold of symmetric and positive semi-definite matrices, so structure-preserving schemes are needed for its numerical #approximation. We apply #stochastic Lie group methods based on Runge-Kutta–Munthe-Kaas schemes for ODEs to guarantee that the numerical solution evolves on the correct #manifold. We also present an application example to illustrate our methodology.`
https://link.springer.com/chapter/10.1007/978-3-031-11818-0_59
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#Language #models. For example, in #NLP, when #training recurrent #neural #networks, it is useful to constraint the transition #matrix to be #unitary. The unitary matrix keeps the #gradient #norm unchanged, and the network is able to learn long-range dependencies. Unitary matrices form a #smooth #Riemannian #manifold, and Riemannian #optimization can be easily applied to them.
https://arxiv.org/pdf/2005.02819 -
İstanbul’un zevk dünyasında hava durumunun önemi, ucuz olduğu için rağbet gören zevksiz maskaralıklar ve çirkin manzaralar eşliğinde dönemin atmosferine açılan kapı kapanıyor… Gürbey Hiz’in “A’dan Z’ye Servet-i Fünûn Manzaraları” dizisinin son metni:
