Search Results for author: Amit Ranjan Trivedi

Found 13 papers, 0 papers with code

Echoes of Socratic Doubt: Embracing Uncertainty in Calibrated Evidential Reinforcement Learning

no code implementations11 Feb 2024 Alex Christopher Stutts, Danilo Erricolo, Theja Tulabandhula, Amit Ranjan Trivedi

We present a novel statistical approach to incorporating uncertainty awareness in model-free distributional reinforcement learning involving quantile regression-based deep Q networks.

Atari Games Distributional Reinforcement Learning +2

Conformalized Multimodal Uncertainty Regression and Reasoning

no code implementations20 Sep 2023 Domenico Parente, Nastaran Darabi, Alex C. Stutts, Theja Tulabandhula, Amit Ranjan Trivedi

This paper introduces a lightweight uncertainty estimator capable of predicting multimodal (disjoint) uncertainty bounds by integrating conformal prediction with a deep-learning regressor.

Conformal Prediction Optical Flow Estimation +2

ADC/DAC-Free Analog Acceleration of Deep Neural Networks with Frequency Transformation

no code implementations4 Sep 2023 Nastaran Darabi, Maeesha Binte Hashem, Hongyi Pan, Ahmet Cetin, Wilfred Gomes, Amit Ranjan Trivedi

Moreover, our novel array micro-architecture enables adaptive stitching of cells column-wise and row-wise, thereby facilitating perfect parallelism in computations.

Computational Efficiency Model Compression

Towards Model-Size Agnostic, Compute-Free, Memorization-based Inference of Deep Learning

no code implementations14 Jul 2023 Davide Giacomini, Maeesha Binte Hashem, Jeremiah Suarez, Swarup Bhunia, Amit Ranjan Trivedi

Specifically, our work capitalizes on the inference mechanism of the recurrent attention model (RAM), where only a small window of input domain (glimpse) is processed in a one time step, and the outputs from multiple glimpses are combined through a hidden vector to determine the overall classification output of the problem.

Bayesian Optimization Memorization +2

Memory-Immersed Collaborative Digitization for Area-Efficient Compute-in-Memory Deep Learning

no code implementations7 Jul 2023 Shamma Nasrin, Maeesha Binte Hashem, Nastaran Darabi, Benjamin Parpillon, Farah Fahim, Wilfred Gomes, Amit Ranjan Trivedi

We discuss various networking configurations among CiM arrays where Flash, SA, and their hybrid digitization steps can be efficiently implemented using the proposed memory-immersed scheme.

Lightweight, Uncertainty-Aware Conformalized Visual Odometry

no code implementations3 Mar 2023 Alex C. Stutts, Danilo Erricolo, Theja Tulabandhula, Amit Ranjan Trivedi

Data-driven visual odometry (VO) is a critical subroutine for autonomous edge robotics, and recent progress in the field has produced highly accurate point predictions in complex environments.

Data Augmentation Decision Making +3

MC-CIM: Compute-in-Memory with Monte-Carlo Dropouts for Bayesian Edge Intelligence

no code implementations13 Nov 2021 Priyesh Shukla, Shamma Nasrin, Nastaran Darabi, Wilfred Gomes, Amit Ranjan Trivedi

Using Bayesian inference, not only the prediction itself, but the prediction confidence can also be extracted for planning risk-aware actions.

Bayesian Inference Combinatorial Optimization +2

ENOS: Energy-Aware Network Operator Search for Hybrid Digital and Compute-in-Memory DNN Accelerators

no code implementations12 Apr 2021 Shamma Nasrin, Ahish Shylendra, Yuti Kadakia, Nick Iliev, Wilfred Gomes, Theja Tulabandhula, Amit Ranjan Trivedi

Our proposed ENOS framework allows an optimal layer-wise integration of inference operators and computing modes to achieve the desired balance of energy and accuracy.

Computational Efficiency

Probabilistic Localization of Insect-Scale Drones on Floating-Gate Inverter Arrays

no code implementations16 Feb 2021 Priyesh Shukla, Ankith Muralidhar, Nick Iliev, Theja Tulabandhula, Sawyer B. Fuller, Amit Ranjan Trivedi

Addressing the computational challenges of localization in an insect-scale drone using a CIM approach, we propose a novel framework of 3D map representation using a harmonic mean of "Gaussian-like" mixture (HMGM) model.

Indoor Localization Robotics Hardware Architecture Image and Video Processing B.7; I.2.9

Low Latency CMOS Hardware Acceleration for Fully Connected Layers in Deep Neural Networks

no code implementations25 Nov 2020 Nick Iliev, Amit Ranjan Trivedi

We present a novel low latency CMOS hardware accelerator for fully connected (FC) layers in deep neural networks (DNNs).

$MC^2RAM$: Markov Chain Monte Carlo Sampling in SRAM for Fast Bayesian Inference

no code implementations28 Feb 2020 Priyesh Shukla, Ahish Shylendra, Theja Tulabandhula, Amit Ranjan Trivedi

This work discusses the implementation of Markov Chain Monte Carlo (MCMC) sampling from an arbitrary Gaussian mixture model (GMM) within SRAM.

Bayesian Inference

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