Search Results for author: Bowen Lei

Found 12 papers, 7 papers with code

Embracing Unknown Step by Step: Towards Reliable Sparse Training in Real World

1 code implementation29 Mar 2024 Bowen Lei, Dongkuan Xu, Ruqi Zhang, Bani Mallick

Sparse training has emerged as a promising method for resource-efficient deep neural networks (DNNs) in real-world applications.

InVA: Integrative Variational Autoencoder for Harmonization of Multi-modal Neuroimaging Data

no code implementations5 Feb 2024 Bowen Lei, Rajarshi Guhaniyogi, Krishnendu Chandra, Aaron Scheffler, Bani Mallick

While there is a growing literature on image-on-image regression to delineate predictive inference of an image based on multiple images, existing approaches have limitations in efficiently borrowing information between multiple imaging modalities in the prediction of an image.

Rethinking Data Distillation: Do Not Overlook Calibration

1 code implementation ICCV 2023 Dongyao Zhu, Bowen Lei, Jie Zhang, Yanbo Fang, Ruqi Zhang, Yiqun Xie, Dongkuan Xu

Neural networks trained on distilled data often produce over-confident output and require correction by calibration methods.

Towards Reliable Rare Category Analysis on Graphs via Individual Calibration

1 code implementation19 Jul 2023 Longfeng Wu, Bowen Lei, Dongkuan Xu, Dawei Zhou

In particular, to quantify the uncertainties in RCA, we develop a node-level uncertainty quantification algorithm to model the overlapping support regions with high uncertainty; to handle the rarity of minority classes in miscalibration calculation, we generalize the distribution-based calibration metric to the instance level and propose the first individual calibration measurement on graphs named Expected Individual Calibration Error (EICE).

Fraud Detection Network Intrusion Detection +1

ReWOO: Decoupling Reasoning from Observations for Efficient Augmented Language Models

2 code implementations23 May 2023 Binfeng Xu, Zhiyuan Peng, Bowen Lei, Subhabrata Mukherjee, Yuchen Liu, Dongkuan Xu

Augmented Language Models (ALMs) blend the reasoning capabilities of Large Language Models (LLMs) with tools that allow for knowledge retrieval and action execution.

Retrieval

Neurogenesis Dynamics-inspired Spiking Neural Network Training Acceleration

no code implementations24 Apr 2023 Shaoyi Huang, Haowen Fang, Kaleel Mahmood, Bowen Lei, Nuo Xu, Bin Lei, Yue Sun, Dongkuan Xu, Wujie Wen, Caiwen Ding

Experimental results show that NDSNN achieves up to 20. 52\% improvement in accuracy on Tiny-ImageNet using ResNet-19 (with a sparsity of 99\%) as compared to other SOTA methods (e. g., Lottery Ticket Hypothesis (LTH), SET-SNN, RigL-SNN).

Efficient Informed Proposals for Discrete Distributions via Newton's Series Approximation

no code implementations27 Feb 2023 Yue Xiang, Dongyao Zhu, Bowen Lei, Dongkuan Xu, Ruqi Zhang

Gradients have been exploited in proposal distributions to accelerate the convergence of Markov chain Monte Carlo algorithms on discrete distributions.

Efficient Exploration Extractive Text Summarization +2

Calibrating the Rigged Lottery: Making All Tickets Reliable

1 code implementation18 Feb 2023 Bowen Lei, Ruqi Zhang, Dongkuan Xu, Bani Mallick

Previous research has shown that deep neural networks tend to be over-confident, and we find that sparse training exacerbates this problem.

Decision Making

Balance is Essence: Accelerating Sparse Training via Adaptive Gradient Correction

1 code implementation9 Jan 2023 Bowen Lei, Dongkuan Xu, Ruqi Zhang, Shuren He, Bani K. Mallick

To accelerate and stabilize the convergence of sparse training, we analyze the gradient changes and develop an adaptive gradient correction method.

Accelerating Dataset Distillation via Model Augmentation

2 code implementations CVPR 2023 Lei Zhang, Jie Zhang, Bowen Lei, Subhabrata Mukherjee, Xiang Pan, Bo Zhao, Caiwen Ding, Yao Li, Dongkuan Xu

Dataset Distillation (DD), a newly emerging field, aims at generating much smaller but efficient synthetic training datasets from large ones.

Dynamic Sparse Training via Balancing the Exploration-Exploitation Trade-off

no code implementations30 Nov 2022 Shaoyi Huang, Bowen Lei, Dongkuan Xu, Hongwu Peng, Yue Sun, Mimi Xie, Caiwen Ding

We further design an acquisition function and provide the theoretical guarantees for the proposed method and clarify its convergence property.

Estimation of COVID-19 spread curves integrating global data and borrowing information

no code implementations2 May 2020 Se Yoon Lee, Bowen Lei, Bani K. Mallick

In this paper, we propose a Bayesian hierarchical model that integrates global data for real-time prediction of infection trajectory for multiple countries.

Applications Methodology

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