Search Results for author: Jim Davis

Found 8 papers, 3 papers with code

Inducing Neural Collapse to a Fixed Hierarchy-Aware Frame for Reducing Mistake Severity

1 code implementation ICCV 2023 TONG LIANG, Jim Davis

There is a recently discovered and intriguing phenomenon called Neural Collapse: at the terminal phase of training a deep neural network for classification, the within-class penultimate feature means and the associated classifier vectors of all flat classes collapse to the vertices of a simplex Equiangular Tight Frame (ETF).

Enhancing Self-Training Methods

no code implementations18 Jan 2023 Aswathnarayan Radhakrishnan, Jim Davis, Zachary Rabin, Benjamin Lewis, Matthew Scherreik, Roman Ilin

Semi-supervised learning approaches train on small sets of labeled data along with large sets of unlabeled data.

Pseudo Label

Learning When to Say "I Don't Know"

1 code implementation11 Sep 2022 Nicholas Kashani Motlagh, Jim Davis, Tim Anderson, Jeremy Gwinnup

We propose a new Reject Option Classification technique to identify and remove regions of uncertainty in the decision space for a given neural classifier and dataset.

text-classification Text Classification

Confident AI

no code implementations12 Feb 2022 Jim Davis

In this paper, we propose "Confident AI" as a means to designing Artificial Intelligence (AI) and Machine Learning (ML) systems with both algorithm and user confidence in model predictions and reported results.

BIG-bench Machine Learning

Revisiting Batch Norm Initialization

2 code implementations26 Oct 2021 Jim Davis, Logan Frank

Standard initialization of each BN in a network sets the affine transformation scale and shift to 1 and 0, respectively.

Bottom-up Hierarchical Classification Using Confusion-based Logit Compression

no code implementations5 Oct 2021 TONG LIANG, Jim Davis, Roman Ilin

In this work, we propose a method to efficiently compute label posteriors of a base flat classifier in the presence of few validation examples within a bottom-up hierarchical inference framework.

Classification

Posterior Adaptation With New Priors

no code implementations2 Jul 2020 Jim Davis

Classification approaches based on the direct estimation and analysis of posterior probabilities will degrade if the original class priors begin to change.

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