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Deep learning models are widely used across computer vision and other domains. When working on the model induction, selecting the right architecture for a given dataset often relies on repetitive trial-and-error procedures. This procedure…

机器学习 · 计算机科学 2026-01-06 Yen-Chia Chen , Hsing-Kuo Pao , Hanjuan Huang

Empowered by the backpropagation (BP) algorithm, deep neural networks have dominated the race in solving various cognitive tasks. The restricted training pattern in the standard BP requires end-to-end error propagation, causing large memory…

机器学习 · 计算机科学 2022-05-17 Wenzhe Guo , Mohammed E Fouda , Ahmed M. Eltawil , Khaled N. Salama

Preprocessing pipelines in deep learning aim to provide sufficient data throughput to keep the training processes busy. Maximizing resource utilization is becoming more challenging as the throughput of training processes increases with…

机器学习 · 计算机科学 2022-03-28 Alexander Isenko , Ruben Mayer , Jeffrey Jedele , Hans-Arno Jacobsen

Artificial neural networks have gone through a recent rise in popularity, achieving state-of-the-art results in various fields, including image classification, speech recognition, and automated control. Both the performance and…

神经与进化计算 · 计算机科学 2016-11-08 Sean C. Smithson , Guang Yang , Warren J. Gross , Brett H. Meyer

Prompt optimization (PO) provides a practical way to improve response quality when users lack the time or expertise to manually craft effective prompts. Existing methods typically rely on LLMs' self-generation ability to optimize prompts.…

计算与语言 · 计算机科学 2026-01-13 Zixiao Zhu , Hanzhang Zhou , Zijian Feng , Tianjiao Li , Chua Jia Jim Deryl , Mak Lee Onn , Gee Wah Ng , Kezhi Mao

Preference learning extends the performance of Code LLMs beyond traditional supervised fine-tuning by leveraging relative quality comparisons. In existing approaches, a set of n candidate solutions is evaluated based on test case success…

计算与语言 · 计算机科学 2025-10-10 Jie Wu , Haoling Li , Xin Zhang , Xiao Liu , Yangyu Huang , Jianwen Luo , Yizhen Zhang , Zuchao Li , Ruihang Chu , Yujiu Yang , Scarlett Li

Recent advances in generative vision-language models (VLMs) have exciting potential implications for AI in radiology, yet VLMs are also known to produce hallucinations, nonsensical text, and other unwanted behaviors that can waste…

机器学习 · 计算机科学 2024-06-18 Oishi Banerjee , Hong-Yu Zhou , Subathra Adithan , Stephen Kwak , Kay Wu , Pranav Rajpurkar

This paper proposes a deep learning based power allocation (DL-PA) and hybrid precoding technique for multiuser massive multiple-input multiple-output (MU-mMIMO) systems. We first utilize an angular-based hybrid precoding technique for…

信息论 · 计算机科学 2022-02-01 Asil Koc , Mike Wang , Tho Le-Ngoc

One of the most critical issues in machine learning is the selection of appropriate hyper parameters for training models. Machine learning models may be able to reach the best training performance and may increase the ability to generalize…

机器学习 · 计算机科学 2023-02-23 Caner Erden , Halil Ibrahim Demir , Abdullah Hulusi Kökçam

Meta-learning hyperparameter optimization (HPO) algorithms from prior experiments is a promising approach to improve optimization efficiency over objective functions from a similar distribution. However, existing methods are restricted to…

We introduce a new class of hybrid preconditioners for solving parametric linear systems of equations. The proposed preconditioners are constructed by hybridizing the deep operator network, namely DeepONet, with standard iterative methods.…

数值分析 · 数学 2024-01-11 Alena Kopaničáková , George Em Karniadakis

In this paper, we describe the hyper-parameter search problem in the field of machine learning and present a heuristic approach in an attempt to tackle it. In most learning algorithms, a set of hyper-parameters must be determined before…

机器学习 · 计算机科学 2020-01-14 Wei Hao Khoong

Backpropagation (BP), the standard learning algorithm for artificial neural networks, is often considered biologically implausible. In contrast, the standard learning algorithm for predictive coding (PC) models in neuroscience, known as the…

神经与进化计算 · 计算机科学 2023-05-24 Nick Alonso , Jeff Krichmar , Emre Neftci

Deep learning has been widely applied in neuroimaging, including predicting brain-phenotype relationships from magnetic resonance imaging (MRI) volumes. MRI data usually requires extensive preprocessing prior to modeling, but variation…

机器学习 · 计算机科学 2023-10-17 Xinhui Li , Alex Fedorov , Mrinal Mathur , Anees Abrol , Gregory Kiar , Sergey Plis , Vince Calhoun

Direct Preference Optimization (DPO) has emerged as a de-facto approach for aligning language models with human preferences. Recent work has shown DPO's effectiveness relies on training data quality. In particular, clear quality differences…

机器学习 · 计算机科学 2025-01-28 Nirav Diwan , Tolga Ergen , Dongsub Shim , Honglak Lee

In this paper, we tackle the important yet under-investigated problem of making long-horizon prediction of event sequences. Existing state-of-the-art models do not perform well at this task due to their autoregressive structure. We propose…

机器学习 · 计算机科学 2022-10-05 Siqiao Xue , Xiaoming Shi , James Y Zhang , Hongyuan Mei

In various fields, statistical models of interest are analytically intractable. As a result, statistical inference is greatly hampered by computational constraints. However, given a model, different users with different data are likely to…

统计计算 · 统计学 2020-07-01 Merijn Mestdagh , Stijn Verdonck , Kristof Meers , Tim Loossens , Francis Tuerlinckx

Direct Preference Optimization (DPO) has emerged as a predominant alignment method for diffusion models, facilitating off-policy training without explicit reward modeling. However, its reliance on large-scale, high-quality human preference…

计算机视觉与模式识别 · 计算机科学 2026-02-09 Khiem Pham , Quang Nguyen , Tung Nguyen , Jingsen Zhu , Michele Santacatterina , Dimitris Metaxas , Ramin Zabih

Direct Preference Optimization (DPO) has gained attention as an efficient alternative to reinforcement learning from human feedback (RLHF) for aligning large language models (LLMs) with human preferences. Despite its advantages, DPO suffers…

计算与语言 · 计算机科学 2025-02-21 Ruichen Shao , Bei Li , Gangao Liu , Yang Chen , Xiang Zhou , Jingang Wang , Xunliang Cai , Peng Li

Performance optimization of deep learning models is conducted either manually or through automatic architecture search, or a combination of both. On the other hand, their performance strongly depends on the target hardware and how…

机器学习 · 计算机科学 2022-09-23 Vahid Partovi Nia , Alireza Ghaffari , Mahdi Zolnouri , Yvon Savaria