Search Results for author: Rajesh P. N. Rao

Found 16 papers, 4 papers with code

Culturally-Attuned Moral Machines: Implicit Learning of Human Value Systems by AI through Inverse Reinforcement Learning

no code implementations29 Dec 2023 Nigini Oliveira, Jasmine Li, Koosha Khalvati, Rodolfo Cortes Barragan, Katharina Reinecke, Andrew N. Meltzoff, Rajesh P. N. Rao

We therefore argue that the value system of an AI should be culturally attuned: just as a child raised in a particular culture learns the specific values and norms of that culture, we propose that an AI agent operating in a particular human community should acquire that community's moral, ethical, and cultural codes.

Decision Making

Expressive probabilistic sampling in recurrent neural networks

1 code implementation NeurIPS 2023 Shirui Chen, Linxing Preston Jiang, Rajesh P. N. Rao, Eric Shea-Brown

We show that the firing rate dynamics of a recurrent neural circuit with a separate set of output units can sample from an arbitrary probability distribution.

Denoising

Active Predictive Coding: A Unified Neural Framework for Learning Hierarchical World Models for Perception and Planning

no code implementations23 Oct 2022 Rajesh P. N. Rao, Dimitrios C. Gklezakos, Vishwas Sathish

Here we propose a new framework for predictive coding called active predictive coding which can learn hierarchical world models and solve two radically different open problems in AI: (1) how do we learn compositional representations, e. g., part-whole hierarchies, for equivariant vision?

reinforcement-learning Reinforcement Learning (RL) +1

Hyper-Universal Policy Approximation: Learning to Generate Actions from a Single Image using Hypernets

no code implementations7 Jul 2022 Dimitrios C. Gklezakos, Rishi Jha, Rajesh P. N. Rao

Inspired by Gibson's notion of object affordances in human vision, we ask the question: how can an agent learn to predict an entire action policy for a novel object or environment given only a single glimpse?

Recursive Neural Programs: Variational Learning of Image Grammars and Part-Whole Hierarchies

no code implementations16 Jun 2022 Ares Fisher, Rajesh P. N. Rao

Human vision involves parsing and representing objects and scenes using structured representations based on part-whole hierarchies.

Transfer Learning

Active Predictive Coding Networks: A Neural Solution to the Problem of Learning Reference Frames and Part-Whole Hierarchies

no code implementations14 Jan 2022 Dimitrios C. Gklezakos, Rajesh P. N. Rao

We introduce Active Predictive Coding Networks (APCNs), a new class of neural networks that solve a major problem posed by Hinton and others in the fields of artificial intelligence and brain modeling: how can neural networks learn intrinsic reference frames for objects and parse visual scenes into part-whole hierarchies by dynamically allocating nodes in a parse tree?

Predictive Coding Theories of Cortical Function

no code implementations19 Dec 2021 Linxing Preston Jiang, Rajesh P. N. Rao

Specifically, the Rao-Ballard hierarchical predictive coding model assumes that the top-down feedback connections from higher to lower order cortical areas convey predictions of lower-level activities.

Bayesian Inference

Emergent behavior and neural dynamics in artificial agents tracking turbulent plumes

1 code implementation25 Sep 2021 Satpreet Harcharan Singh, Floris van Breugel, Rajesh P. N. Rao, Bingni Wen Brunton

Here, we take a complementary in silico approach, using artificial agents trained with reinforcement learning to develop an integrated understanding of the behaviors and neural computations that support plume tracking.

reinforcement-learning Reinforcement Learning (RL)

Brain Co-Processors: Using AI to Restore and Augment Brain Function

no code implementations6 Dec 2020 Rajesh P. N. Rao

Brain-computer interfaces (BCIs) use decoding algorithms to control prosthetic devices based on brain signals for restoration of lost function.

Learning a Convolutional Bilinear Sparse Code for Natural Videos

no code implementations NeurIPS Workshop Neuro_AI 2019 Dimitrios C. Gklezakos, Rajesh P. N. Rao

Our results show that our model can learn groups of features and their transformations directly from natural videos in a completely unsupervised manner.

Towards Neural Co-Processors for the Brain: Combining Decoding and Encoding in Brain-Computer Interfaces

no code implementations28 Nov 2018 Rajesh P. N. Rao

The field of brain-computer interfaces is poised to advance from the traditional goal of controlling prosthetic devices using brain signals to combining neural decoding and encoding within a single neuroprosthetic device.

BrainNet: A Multi-Person Brain-to-Brain Interface for Direct Collaboration Between Brains

no code implementations23 Sep 2018 Linxing Jiang, Andrea Stocco, Darby M. Losey, Justin A. Abernethy, Chantel S. Prat, Rajesh P. N. Rao

Two of the three subjects are "Senders" whose brain signals are decoded using real-time EEG data analysis to extract decisions about whether to rotate a block in a Tetris-like game before it is dropped to fill a line.

Human-Computer Interaction Neurons and Cognition

Transformational Sparse Coding

no code implementations8 Dec 2017 Dimitrios C. Gklezakos, Rajesh P. N. Rao

Instead of discarding the rich and useful information about feature transformations to achieve invariance, we argue that models should learn object features conjointly with their transformations to achieve equivariance.

Object Object Recognition

Learning Graph-Structured Sum-Product Networks for Probabilistic Semantic Maps

1 code implementation24 Sep 2017 Kaiyu Zheng, Andrzej Pronobis, Rajesh P. N. Rao

We introduce Graph-Structured Sum-Product Networks (GraphSPNs), a probabilistic approach to structured prediction for problems where dependencies between latent variables are expressed in terms of arbitrary, dynamic graphs.

Structured Prediction

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