Category Archives: Uncategorized

From Brains to Machines : Aug 2, 2011 in Silicon Valley

I am an invited speaker for at an NSF-sponsored special symposium, From Brains to Machines, to be held in San Jose, CA. This symposium is part of IJCNN 2011, the flagship conference of the International Neural Network Society.  The official title of my talk … Continue reading

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New paper by Dr. Davide Maltoni

Just read a paper, Pattern Recognition by Hierarchical Temporal Memory, from Dr. Davide Maltoni. It is a very impressive extension of the work I did as part of my PhD thesis. The paper does a rigorous performance comparison of HTM networks against … Continue reading

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New paper by Dr. Davide Maltoni

Just read a paper, Pattern Recognition by Hierarchical Temporal Memory, from Dr. Davide Maltoni. It is a very impressive extension of the work I did as part of my PhD thesis. The paper does a rigorous performance comparison of HTM networks against … Continue reading

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Life update : Blog, website, company and future plans

I have been away and inactive on the web for a while, and I wanted to give an update about my whereabouts and future plans. Vicarious Systems The first update is that I started a new company – Vicarious Systems. … Continue reading

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Perplexed monkeys and temporal learning of invariances..

I read a very interesting recent paper from Jim Dicarlo’s lab at MIT that gives another strong piece of experimental evidence for temporal slowness based learning of invariant representations. The paper, authored by Nuo Li and DiCarlo found that size … Continue reading

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Actions in perception…

In my last post I described a thought experiment to understand some of the roles actions play in perception. The question we asked in the thought experiment was whether our brains could learn spatial concepts and transformations efficiently by passively … Continue reading

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Actions in perception: A thought experiment

I like thought experiments, especially the ones that have a philosophical angle. In my last post I described a thought experiment about temporal continuity and learning invariance. I have a similar thought experiment for the role of actions in perception. Consider … Continue reading

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Importance of being slow..

What is most amazing about the mammalian visual sytem is its invariance property — that it can recognize objects despite wide amounts of variation. Learning these invariant representations in the correct way is one of challenges in vision and neuroscience … Continue reading

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“Word models” and mathematical models in neuroscience

Recently, I read a paper by Larry Abbot about the rising roleof theoretical neuroscience in understanding brain function. I could readily identify with many ofthe high-level observations that Larry made. I couldn’t help smiling when I read the quip about new entrants … Continue reading

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Hierarchical Bayesian inference in the visual cortex

The paper titled Hierarchical Bayesian inference in the visual cortex by Tai Sing Lee and David Mumford is already a classic. This was one of the first papers that really got me into thinking of brain from a Hierarchical Bayesian … Continue reading

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