Pengfei
Pengfei
@pengfei-sun.bsky.social
I’m a postdoc @Imperial, advised by @danakarca.bsky.social and @neural-reckoning.org.
I’m passionate about brain‑inspired neural networks, focusing on delay learning in RNNs (spiking/rate) and lightweight attention mechanisms.
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.
November 13, 2025 at 8:51 PM
Reposted by Pengfei
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
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...
arxiv.org
November 13, 2025 at 5:40 PM
Reposted by Pengfei
Talks from #SNUFA 2025 are now available on YouTube:
youtube.com/playlist?lis...
🤖🧠🧪
SNUFA 2025 Workshop - YouTube
Spiking neural networks as universal function approximators (SNUFA) online workshop 2025. For more see http://snufa.net/2025/
youtube.com
November 7, 2025 at 4:59 PM
Reposted by Pengfei
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...
November 4, 2025 at 9:47 AM
Reposted by Pengfei
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 2025
Spiking Neural networks as Universal Function Approximators
snufa.net
October 23, 2025 at 4:17 PM
Reposted by Pengfei
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 2025
Spiking Neural networks as Universal Function Approximators
snufa.net
October 1, 2025 at 7:16 PM
Reposted by Pengfei
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...
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 ...
www.biorxiv.org
September 18, 2025 at 4:30 PM
Reposted by Pengfei
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...
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.
www.thetransmitter.org
September 17, 2025 at 2:33 PM
Reposted by Pengfei
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 2025
Spiking Neural networks as Universal Function Approximators
snufa.net
September 16, 2025 at 9:33 AM
Reposted by Pengfei
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. 🤖🧠🧪
September 4, 2025 at 2:59 PM
Reposted by Pengfei
Yeah robots are definitely not taking over the world.

Not the red one, at least. 🤣
September 1, 2025 at 11:54 AM
Reposted by Pengfei
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 2025
Spiking Neural networks as Universal Function Approximators
snufa.net
August 7, 2025 at 11:56 AM
Reposted by Pengfei
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
August 1, 2025 at 8:27 AM
Reposted by Pengfei
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-...
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...
www.imperial.ac.uk
July 25, 2025 at 1:27 PM
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!
July 24, 2025 at 5:47 PM
Reposted by Pengfei
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.
June 10, 2025 at 3:21 PM
Reposted by Pengfei
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
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...
arxiv.org
April 24, 2025 at 4:57 PM
Reposted by Pengfei
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!
March 6, 2025 at 3:21 PM
Reposted by Pengfei
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...
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…
www.thetransmitter.org
February 20, 2025 at 5:09 PM
Reposted by Pengfei
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?
February 4, 2025 at 10:49 AM