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Spatial intelligence is AI’s next frontier

drfeifei.substack.com

41–50 of 136 posts

Re: Spatial intelligence is AI’s next frontier

#41

Earlier quoted context omitted.

Curating a dataset is vastly different than introducing a new architectural approach. ImageNet is a database. Its not like inventing the convolutions for CNNs or the LSTM or a Transformer.

CNNs and Transformers are both really simple and intuitive so I don't think there is any stroke of genius in how they were devised. Their success is due to datasets and the tooling that allowed models to be trained on large amounts of data, sufficiently fast using GPU clusters.

Exactly right. Neatly said by the author in the linked article.

> I spent years building ImageNet, the first large-scale visual learning and benchmarking dataset and one of three key elements enabling the birth of modern AI, along with neural network algorithms and modern compute like graphics processing units (GPUs).

Datasets + NNs + GPUs. Three "vastly different" advances that came together. ImageNet was THE dataset.

Re: Spatial intelligence is AI’s next frontier

#42
Also good context here is Friston’s Free Energy Principle: A unified theory suggesting that all living systems, from simple organisms to the brain, must minimize "surprise" to maintain their form and survive. To do this, systems act to minimize a mathematical quantity called variational free energy, which is an upper bound on surprise. This involves constantly making predictions about the world, updating internal models based on sensory data, and taking actions that reduce the difference between predictions and reality, effectively minimizing prediction errors.

Key distinction: Constant and continuous updating. I.e. feedback loops with observation, prediction, action (agency), and once more, observation.

It should have survival and preservation as a fundamental architectural feature.

Re: Spatial intelligence is AI’s next frontier

#44

From reading that, I'm not quite sure if they have anything figured out. I actually agree, but her notes are mostly fluff with no real info in there and I do wonder if they have anything figured out besides "collect spatial data" like imagenet. There are actually a lot of people trying to figure out spatial intelligence, but those groups are usually in neuroscience or computational neuroscience. Here is a summary pap…

> Here is a summary paper I wrote discussing how the entorhinal cortex, grid cells, and coordinate transformation may be the key: https://arxiv.org/abs/2210.12068 All animals are able to transform coordinates in real time to navigate their world and humans have the most coordinate representations of any known living animal. I believe human level intelligence is knowing when and how to transform these coordinate syste…

It's not enough by a long shot. Placement isn't related directly to vicarious trial and error, path integrations, sequence generation.

There's a whole giant gap between grid cells and intelligence.

Re: Spatial intelligence is AI’s next frontier

#46
I think I perceive a massive bottleneck. Today's incarnation of AI learns from the web, not from the interaction with the humans it talks to. And for sure there is a lot of value there, it is just pointless to see that interaction lost a few hundred or thousand words of context later. For humans their 'context' is their life and total memory capacity, that's why we learn from the interaction with other, more experienced humans. It is always a two way street. But with AI as it is, it is a one way street, one that means that your interaction and your endless corrections when it gets stuff wrong (again) is lost. Allowing for a personalized massive context would go a long way towards improving the value here, at least like that you - hopefully - only have to make the same correction once.

Re: Spatial intelligence is AI’s next frontier

#47

From reading that, I'm not quite sure if they have anything figured out. I actually agree, but her notes are mostly fluff with no real info in there and I do wonder if they have anything figured out besides "collect spatial data" like imagenet. There are actually a lot of people trying to figure out spatial intelligence, but those groups are usually in neuroscience or computational neuroscience. Here is a summary pap…

This is super cool and I want to read up more on this as I think you are right insofar as it is the basis for reasoning. However it does seem more complex than just that. So how do we go from coordinate system transformations to abstract reasoning with symbolic representations?

There is research showing that the grid cells also represent abstract reasoning: https://pmc.ncbi.nlm.nih.gov/articles/PMC5248972/

Deep Mind also did a paper with grid cells a while ago: https://deepmind.google/blog/navigating-with-grid-like-repre...

Re: Spatial intelligence is AI’s next frontier

#48

Earlier quoted context omitted.

The automotive AIs are narrow pseudo-spatial models that are good at extracting spatial features from the environment to feed fairly simple non-spatial models. They don't really reason spatially in the same sense that an animal does. A tremendous amount of human cognitive effort goes into updating the maps that these systems rely on.

Help me understand - my mental model of how auto AI work is that they're using neural nets to process visual information and output a decision on where to move in relation to objects in the world around them. Yes they are moving in a constrained 2D space but is that not fundamentally what animals do?

What you're describing is what's known as an "end to end" model that takes in image pixels and outputs steering and throttle commands. What happens in an AV is that a bunch of ML models produce input for software written by human engineers, and so the output doesn't come from an entirely ML system, it's a mix of engineered and trained components for various identifiable tasks (perception, planning, prediction, controls).

Re: Spatial intelligence is AI’s next frontier

#49
Genie 3 (at a prototype level) achieves the goal she describes: a controllable world model with consistency and realistic physics. Its sibling Veo 3 even demonstrates some [spatial problem-solving ability](https://video-zero-shot.github.io/). Genie and Veo are definitely closer to her vision than anything World Labs has released publicly.

However, she does not mention Google's models at all. This omission makes the blog feel very much like an ad for her company rather than a good-faith guide for the field.

Re: Spatial intelligence is AI’s next frontier

#50
post #36
post #17

Personally, I think the direction AI will go towards is having an AI brain with something like a LLM at its core augmented with various abilities like spatial intelligence, rather than models being designed with spatial reasoning at its core. Human language and reasoning seems flexible enough to form some kind of spatial understanding, but I'm not so sure about the converse of having spatial intelligence derive human…

> Human language and reasoning seems flexible enough to form some kind of spatial understanding, but I'm not so sure about the converse of having spatial intelligence derive human reasoning I believe the zero hypothesis would be that a model natively understanding both would work best/come closest to human intelligence (and possibly other different modalities are also needed). Also, as a complete laymen, our language…

There's a difference between what a model is trained on and the inductive biases a model uses to generalize. It isn't as simple as saying training natively on everything. All existing models have certain things they generalize better and certain things they don't generalize due to their model architecture, and the architecture of world models I've seen don't seem as capable of universally generalizing as LLMs.
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