Sign in

Pengfei

@pengfei-sun.bsky.social
31 followers 46 following 7 posts

I’m a postdoc @Imperial, working with @neural-reckoning.org. I’m passionate about brain‑inspired neural networks, focusing on delay learning in RNNs (spiking/rate) and lightweight attention mechanisms.

PostsRepliesMedia
Reposted by Pengfei
Dan Goodman @neural-reckoning.org · 17/09/2026
Reminder everyone, the SNUFA spiking neural network workshop abstract submission deadline is end of next week! Get your abstracts in, and register for the event too. 🤖🧠🧪 #Neuroscience #ComputationalNeuroscience #SpikingNeuralNetworks
062
Reposted by Pengfei
Dan Goodman @neural-reckoning.org · 11/09/2026
Gave a talk at the @crick.ac.uk on "Does heterogeneity help the brain and how could we know if it did?" part of a series we organised with @marcusghosh.bsky.social. It was fun to present work aimed at generating discussion. neural-reckoning.org/talk_2026_cr...
neural-reckoning.org
Does heterogeneity help the brain and how could we know if it did?
2212
Reposted by Pengfei
Dan Goodman @neural-reckoning.org · 27/08/2026
Lots of science happens at talks, and if you're not there you don't get to see what's happening. I find that this excludes lots of people, and isn't fair. So, from now on I'll try to upload all my talk slides at least to my website (videos when available): neural-reckoning.org/talks.html
neural-reckoning.org
Talks
2438
Reposted by Pengfei
Dan Goodman @neural-reckoning.org · 16/07/2026
New preprint (well, very updated). 🤖🧠🧪 We find that an abstract model of neuromodulation lets spiking neural networks perform much better, particularly in challenging noisy environments, using less energy. Relevant to #neuroscience and #neuromorphic computing. 🧵👇 www.biorxiv.org/content/10.1...
biorxiv.org
Neuromodulation enhances the capability and efficiency of spiking neural networks
Spiking neurons underlie the brain’s extreme energy efficiency, and therefore have great potential in neuromorphic computing, although realising this efficiency in practice has proven challenging. We ...
26927
Reposted by Pengfei
Dan Goodman @neural-reckoning.org · 18/06/2026
New neuromorphic/SNN paper with @pengfei-sun.bsky.social Zhe Su, @achterbrain.bsky.social @giacomoi.bsky.social and @danakarca.bsky.social: www.nature.com/articles/s42... Long story short: neat trick to augment SNNs with a tiny memory buffer to improve performance at low energy/param cost. 🤖🧠🧪
nature.com
Algorithm–hardware co-design of neuromorphic networks with dual memory pathways - Nature Machine Intelligence
Pengfei Sun et al. develop a spiking neural network with a dual memory pathway, co-designed with a custom neuromorphic chip. The approach delivers over 4× throughput and 5x energy efficiency gains whi...
2239
Reposted by Pengfei
Marcus Ghosh @marcusghosh.bsky.social · 11/06/2026
Really enjoyed teaching students as part of the African Computational Neuroscience Educational Initiative (www.acnei.org)! Looking forward to @trendcamina.bsky.social soon too
072
Reposted by Pengfei
Dan Goodman @neural-reckoning.org · 22/04/2026
We're hiring for a project on #SpikingNeuralNetworks and #neuromorphic computing, to start in October this year, for 36 months. Can hire at pre- or post-PhD level. Email me informally, or apply at the link below. Share with your networks / anyone who would be interested. 🤖🧠🧪
01513
Reposted by Pengfei
George A. Constantinides @gconstantinides.bsky.social · 22/04/2026
Interested in a PhD or postdoc in digital neuromorphic computing? @neural-reckoning.org, Christos Bouganis and I are recruiting! Please share with anyone who may be interested. Applications close on 15 May 2026. www.imperial.ac.uk/jobs/search-...
imperial.ac.uk
Description
Please note that job descriptions are not exhaustive, and you may be asked to take on additional duties that align with the key responsibilities ment...
021
Reposted by Pengfei
Marcus Ghosh @marcusghosh.bsky.social · 20/03/2026
Had great fun discussing some recent work and the value of toy models in neuroscience last night! Our next workshop will be: * 16.04 * 16-20:30 * At the Crick Sign up (for free) and come along! www.eventbrite.co.uk/e/understand...
0156
Reposted by Pengfei
Dan Goodman @neural-reckoning.org · 26/02/2026
London #neuroscience people you may like this. We're hosting a series of talks at Imperial & Crick on how to get experiment and theory working together better. Each session will have a talk around this and extended networking / group discussion on the questions raised. Plus, free food! 🤖🧠🧪
13813
Reposted by Pengfei
Dan Goodman @neural-reckoning.org · 11/02/2026
PhD opportunity in "The role of neural development in multimodal intelligence" with me, @marcusghosh.bsky.social and @flor-iacaruso.bsky.social. Read details below 👇. Note there's a very short window for applying (deadline Feb 27). 🤖🧠🧪 www.imperial.ac.uk/school-of-co...
imperial.ac.uk
PhD opportunities
The School of Convergence Science at Imperial College London is inviting applications for fully funded PhD studentships on research projects that sup...
22222
Reposted by Pengfei
Marcus Ghosh @marcusghosh.bsky.social · 22/12/2025
Toy models, just in time for Christmas! Excited to share my first article for @thetransmitter.bsky.social #neuroskyence
04620
Reposted by Pengfei
Jascha Achterberg @achterbrain.bsky.social · 21/11/2025
Brains have many pathways / subnetworks but which principles underlie their formation? In our #NeurIPS paper lead by Jack Cook we identify biologically relevant inductive biases that create pathways in brain-like Mixture-of-Experts models🧵 #neuroskyence #compneuro #neuroAI arxiv.org/abs/2506.02813
13712
Pengfei @pengfei-sun.bsky.social · 13/11/2025
With my great advisors and colleagues, @achterbrain.bsky.social @zhe @danakarca.bsky.social @neural-reckoning.org, we show that if heterogeneous axonal delays (imprecise) can capture the essential temporal structure of a task, spiking networks do not need precise synaptic weights to perform well.
22210
Reposted by Pengfei
Dan Goodman @neural-reckoning.org · 13/11/2025
Psst - neuromorphic folks. Did you know that you can solve the SHD dataset with 90% accuracy using only 22 kb of parameter memory by quantising weights and delays? Check out our preprint with @pengfei-sun.bsky.social and @danakarca.bsky.social, or read the TLDR below. 👇🤖🧠🧪 arxiv.org/abs/2510.27434
arxiv.org
Exploiting heterogeneous delays for efficient computation in low-bit neural networks
Neural networks rely on learning synaptic weights. However, this overlooks other neural parameters that can also be learned and may be utilized by the brain. One such parameter is the delay: the brain...
34416
Reposted by Pengfei
Dan Goodman @neural-reckoning.org · 07/11/2025
Talks from #SNUFA 2025 are now available on YouTube: youtube.com/playlist?lis... 🤖🧠🧪
youtube.com
SNUFA 2025 Workshop - YouTube
Spiking neural networks as universal function approximators (SNUFA) online workshop 2025. For more see http://snufa.net/2025/
01910
Reposted by Pengfei
Marcus Ghosh @marcusghosh.bsky.social · 04/11/2025
Interested in #neuroscience + #AI and looking for a PhD position? I can support your application @imperialcollegeldn.bsky.social ✅ Check your eligibility (below) ✅ Contact me (DM or email) UK nationals: www.imperial.ac.uk/life-science... Otherwise: www.imperial.ac.uk/study/fees-a...
A figure showing a range of neural network architectures. 

From Ghosh & Goodman, 2025, bioRxiv.
1198
Reposted by Pengfei
Dan Goodman @neural-reckoning.org · 23/10/2025
Spiking NN fans - the #SNUFA workshop (Nov 5-6) agenda is finalised and online now. Make sure to register (free) soon. (Note you can register for either day and come to both.) Agenda: snufa.net/2025/ Registration: www.eventbrite.co.uk/e/snufa-2025... Thanks to all who voted on abstracts! 🤖🧠🧪
snufa.net
SNUFA 2025
Spiking Neural networks as Universal Function Approximators
03015
Reposted by Pengfei
Neuron @cp-neuron.bsky.social · 04/10/2025
dlvr.it
Neuromorphic is dead. Long live neuromorphic
In this NeuroView, Giacomo Indiveri discusses the origins and evolution of neuromorphic engineering, reflects on recent shifts toward digital and AI-centric approaches, and advocates for a revival of the field’s original principles, emphasizing analog, brain-inspired systems and the importance of fundamental neuroscience for future progress.
073
Reposted by Pengfei
Dan Goodman @neural-reckoning.org · 01/10/2025
Message for participants of the #SNUFA 2025 spiking neural network workshop. We got almost 60 awesome abstract submissions, and we'd now like your help to select which ones should be offered talks. Follow the "abstract voting" link at snufa.net/2025/ to take part. It should take <15m. Thanks! ❤️
snufa.net
SNUFA 2025
Spiking Neural networks as Universal Function Approximators
01810
Reposted by Pengfei
Dan Goodman @neural-reckoning.org · 18/09/2025
New preprint! What happens if you add neuromodulation to spiking neural networks and let them go wild with it? TLDR: it can improve performance especially in challenging sensory processing tasks. Explainer thread below. 🤖🧠🧪 www.biorxiv.org/content/10.1...
biorxiv.org
Neuromodulation enhances dynamic sensory processing in spiking neural network models
Neuromodulators allow circuits to dynamically change their biophysical properties in a context-sensitive way. In addition to their role in learning, neuromodulators have been suggested to play a role ...
38423
Reposted by Pengfei
The Transmitter @thetransmitter.bsky.social · 17/09/2025
In our latest “This paper changed my life,” @neural-reckoning.org explains how @fzenke.bsky.social's 2019 paper, and its related coding tutorial SpyTorch, made it possible to apply modern machine learning to spiking neural networks. #neuroskyence www.thetransmitter.org/this-paper-c...
thetransmitter.org
This paper changed my life: Dan Goodman on a paper that reignited the field of spiking neural networks
Friedemann Zenke’s 2019 paper, and its related coding tutorial SpyTorch, made it possible to apply modern machine learning to spiking neural networks. The innovation reinvigorated the field.
03110
Reposted by Pengfei
Dan Goodman @neural-reckoning.org · 16/09/2025
Submissions (short!) due for SNUFA spiking neural networks conference in <2 weeks! 🤖🧠🧪 forms.cloud.microsoft/e/XkZLavhaJe More info at snufa.net/2025/ Note that we normally get around 700 participants and recordings go on YouTube and get 100s-1000s views. Please repost.
snufa.net
SNUFA 2025
Spiking Neural networks as Universal Function Approximators
02616
Reposted by Pengfei
Dan Goodman @neural-reckoning.org · 04/09/2025
Is anarchist science possible? As an experiment, we got together a large group of computational neuroscientists from around the world to work on a single project without top down direction. Read on to find out what happened. 🤖🧠🧪
Diagram of how the "collaborative modelling of the brain" (COMOB) project started. Starting material lead to group research or solo research, coming together in online workshops (monthly) in an iterative cycle, finishing with writing up together. The diagram is illustrated with colourful cartoon blob characters.
27528
Reposted by Pengfei
Luca @lucagalletti.bsky.social · 01/09/2025
Yeah robots are definitely not taking over the world. Not the red one, at least. 🤣
1731676303
Reposted by Pengfei
Dan Goodman @neural-reckoning.org · 07/08/2025
Spiking neural networks people, this message is for you! The annual SNUFA workshop is now open for abstract submission (deadline Sept 26) and (free) registration. This year's speakers include Elisabetta Chicca, Jason Eshraghian, Tomoki Fukai, Chengcheng Huang, and... you? snufa.net/2025/ 🤖🧠🧪
snufa.net
SNUFA 2025
Spiking Neural networks as Universal Function Approximators
23216
Reposted by Pengfei
Marcus Ghosh @marcusghosh.bsky.social · 01/08/2025
How does the structure of a neural circuit shape its function? @neuralreckoning.bsky.social & I explore this in our new preprint: doi.org/10.1101/2025... 🤖🧠🧪 🧵1/9
A diagram showing 128 neural network architectures.
711340
Reposted by Pengfei
Danyal Akarca @danakarca.bsky.social · 25/07/2025
Hiring a post-doc at Imperial in EEE. Broad in scope + flexible on topics: neural networks & new AI accelerators from a HW/SW co-design perspective! w/ @neuralreckoning.bsky.social @achterbrain.bsky.social in Intelligent Systems and Networks group. Plz share! 🚀: www.imperial.ac.uk/jobs/search-...
imperial.ac.uk
Description
Please note that job descriptions are not exhaustive, and you may be asked to take on additional duties that align with the key responsibilities ment...
2148
Pengfei @pengfei-sun.bsky.social · 24/07/2025
Together with my supervisor and the Neural Reckoning team neuralreckoning.bsky.social, we’ve developed a new SHD/SSC variant that strips out rate information but spike‑timing information—designed to really challenge SNNs. Your feedback is welcome—let us know how it performs in your models!
github.com
GitHub - neural-reckoning/temporal-shd: Variant of the SHD dataset with only timing information retained
Variant of the SHD dataset with only timing information retained - neural-reckoning/temporal-shd
130
Reposted by Pengfei
Dan Goodman @neural-reckoning.org · 10/06/2025
Fusing multisensory signals across channels and time. Now published at PLOS Comp Biol! 🎉 With @swathianil.bsky.social and @marcusghosh.bsky.social. journals.plos.org/ploscompbiol... TLDR, when multisensory signals vary over time, neural architecture becomes important. Biggest not always best.
journals.plos.org
Fusing multisensory signals across channels and time
Author summary We constantly detect sensory inputs, like sights and sounds, and use combinations of these signals to guide our actions. For example, by reading someone’s lips we can better converse wi...
14314
Reposted by Pengfei
Dan Goodman @neural-reckoning.org · 24/04/2025
How do babies and blind people learn to localise sound without labelled data? We propose that innate mechanisms can provide coarse-grained error signals to boostrap learning. New preprint from @yang-chu.bsky.social. 🤖🧠🧪 arxiv.org/abs/2001.10605
arxiv.org
Learning spatial hearing via innate mechanisms
The acoustic cues used by humans and other animals to localise sounds are subtle, and change during and after development. This means that we need to constantly relearn or recalibrate the auditory spa...
2299
Reposted by Pengfei
Danyal Akarca @danakarca.bsky.social · 06/03/2025
Abstract submissions are now open for the UK Neural Computation Conference! (Deadline 12th May). We also have ARIA sponsored travel funds for ECRs! 💥 Submit here: neuralcomputation.uk/submission.html Genreal info: neuralcomputation.uk Registration open May. Any qs get in touch + plz share!
neuralcomputation.uk
Submission |
032
Reposted by Pengfei
The Transmitter @thetransmitter.bsky.social · 20/02/2025
Scientific data and independence are at risk: We need to work with community-driven services and university libraries to create new multi-country organizations that are resilient to political interference. By @neuralreckoning.bsky.social #neuroskyence www.thetransmitter.org/policy/scien...
thetransmitter.org
Science must step away from nationally managed infrastructure
Scientific data and independence are at risk. We need to work with community-driven services and university libraries to create new multi-country organizations that are resilient to political…
18636
Reposted by Pengfei
UCL NeuroAI @ucl-neuroai.bsky.social · 04/02/2025
For our next UCL #NeuroAI online seminar, we are happy to be hosting Dr Dan Goodman @neuralreckoning.bsky.social (@imperialcollegeldn.bsky.social). 🗓️Wed 12 Feb 2025 ⏰2-3pm GMT Talk title: Neural architectures: what are they good for anyway?
1298