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Spiking Neural Network from scratch achieves 8% accuracy. no backpropagation or SGD I created a genetic hyper parameter optimizer and it now, on average, can get 8% accuracy which is ~3% above chance Link to source code with a detailed video and markdown explanations in comment it also usually...

225,484 次观看 • 8 个月前 •via X (Twitter)

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Bio inspired Hebbian probabilistic network learns in less than 5 minutes from a super sparse single reward per episode! also has imitation learning (manual control) system has 3 parallel competing networks which get sensory input from a 360 vision (27-direction sensory neuron array) link to code in comment each sub-network is responsible for a single motor action: forward, left and right. at each step whichever section has most neurons firing wins neurons fire probabilistically and mark themselves with a time-decay tag which happens when a neuron fires and diminishes with time. you can see this " tag countdown" on each neuron when a reward is attained(eating the cheese) eligible connections gets strengthened I included 2 runs in the video first was 15 minutes in real time and second was 5 minutes. red plot is the rolling average of last 10 time to cheese. it is really not possible for agent to achieve full control due to probabilistic neural firing. that is why it has to learn while jittering all over the place, which in itself is interesting in manual mode you can guide the cheese by stimulating its motor control networks ( still probabilistically ) and the rewards will still work ✅ Biologically Plausible Features: Stochastic firing (neurons in the brain fire probabilistically) Reward-based learning (dopamine-like neuromodulation) Hebbian plasticity (well-established biological mechanism) Eligibility traces (biological neurons have temporal credit assignment) Sparse sensory encoding (similar to place cells, grid cells) Competitive action selection (basal ganglia architecture) No backpropagation (which is biologically implausible) ❌ Missing Biological Features: No recurrent connections (real brains have extensive feedback loops) No inhibitory neurons (GABAergic neurons are ~20% of cortex) No spike timing (simplified from true spiking dynamics) Uniform layer structure (biological networks are more heterogeneous) Simple weight updates (real synaptic plasticity is more complex)

echo.hive

33,638 次观看 • 8 个月前

As many of you know, for the last five months I've been working full-time on my next big thing. The challenge was to invent something new and implement it entirely using LLMs for writing code. The first stage of the project is now complete: the web application, which I called is now online and accepting users. You can see a short demo in the video. 100% of the code of the app was generated by LLMs (mostly Gemini and Claude, maybe 10% of ChatGPT). I haven't written a single line of code. The tech stack is TypeScript, React, and Supabase/Postgres which was (and still is) fully new to me. During these five months, I implemented from scratch three versions of the software. It started as a Markdown editor to help me with my book writing and ended up as an AI-assisted reading and self-learning platform. What makes ChapterPal unique is a novel reading experience where the user can use the keyboard keys to reveal or "unreveal" the content and ask questions at any moment. (Mouse wheel, touchpad, smartphone screen, and voice input are also supported.) The LLM receives the entire content of the chapter and tries to answer questions based on the chapter's content, which reduces the chance of hallucination to the minimum. (Though not to 0%, of course, but near it.) This way of content consumption is known as **active reading,** a strategy for engaging with a text to improve comprehension and retention by consciously interacting with the material. The goal is to move beyond passive reading to a deeper understanding of the text and to remember key information more effectively. The registration on ChapterPal is via the waiting list. This is to avoid unexpected load spikes and cloud charges. Usually, it takes less than 24 hours for me to activate a user. Give it a try and let me know what you think. The next stage is finishing the content ingestion pipeline, which will automatically convert high-quality content from sources like HTML, PDF, and LaTeX into Markdown. Obviously, only those pieces whose licenses allow creating copies. ChapterPal has its own collection of textbooks and articles on AI, machine learning, and data science topics. If you don't find a piece of content you would like to read in ChapterPal's collection, a Chrome extension, ChapterPal Uploader, allows you to upload any PDF or HTML page to ChapterPal in one click. The content is only available for you to read to avoid the possibility of copyright infringement. I hope you enjoy using it as much as I enjoy building it.

BURKOV

81,180 次观看 • 7 个月前

"Spike protein was designed as a bioweapon...this entire pandemic was to reduce life expectancy...the United Nations has been clear about its intentions to reduce the world's population. So they created a virus to create a need for a vaccine, both of which had this bioweapon."** Canadian physician Dr. Charles Hoffe describes during a recent World Council for Health (World Council for Health (WCH)) discussion how he believes that the now-infamous "spike protein" was designed as a bioweapon. Hoffe says that he believes both the COVID-19 "pandemic" and the injections released to—ostensibly—immunize people were both created with the intention of "reducing the world's population." "I think the most critical thing to understand is that spike protein was designed as a bioweapon. I mean, it's now fairly clear that this entire pandemic was to reduce life expectancy," Hoffe says. "The United Nations has been quite clear about its intentions to reduce the world's population, and so they created a virus to create a need for a vaccine, both of which had this bioweapon, which is the spike protein." Hoffe goes on to say: "For those that managed to resist being forced into having the shots or were not coerced into it through fear, they got the spike protein from COVID infections or from shedding. So basically, we have all been spiked. And, of course, those who got the shots became spike protein factories and they got more than anyone else, but we have all been poisoned. "So there are many people who didn't have the shots who are noticing changes in their health. And I think, as a family doctor, what I'm seeing the most is recurrent infections and mostly viral infections, but some people with recurrent bacterial infections as well. And this is, just as doctor Villa mentioned, from this assault on our immune system. And, of course, the cancers are part of that and the autoimmune problems are part of that. But I think the most critical thing is that we've all been spiked, and, therefore, we all need to take measures to deal with that." **While I agree the injections are bioweapons and the UN (and whoever else is in the global cabal) wants to depopulate Earth, I believe it is more likely the cause of COVID is a chemical weapon and not a virus.

Sense Receptor

25,862 次观看 • 1 年前