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The Forward-Forward (FF) algorithm offers a promising alternative to backpropagation (BP). Despite advancements in recent FF-based extensions, which have enhanced the original algorithm and adapted it to convolutional neural networks…

机器学习 · 计算机科学 2026-01-26 Qingchun Gong , Robert Bogdan Staszewski , Kai Xu

The Forward-Forward (FF) algorithm offers a biologically plausible alternative to backpropagation, enabling neural networks to learn through local updates. However, FF's efficacy relies heavily on the definition of "goodness", which is a…

机器学习 · 计算机科学 2025-11-25 Arya Shah , Vaibhav Tripathi

Few-shot text classification aims to classify the text under the few-shot scenario. Most of the previous methods adopt optimization-based meta learning to obtain task distribution. However, due to the neglect of matching between the few…

计算与语言 · 计算机科学 2023-07-31 Tianyi Lei , Honghui Hu , Qiaoyang Luo , Dezhong Peng , Xu Wang

Adaptive gradient methods, which adopt historical gradient information to automatically adjust the learning rate, despite the nice property of fast convergence, have been observed to generalize worse than stochastic gradient descent (SGD)…

机器学习 · 计算机科学 2020-06-24 Jinghui Chen , Dongruo Zhou , Yiqi Tang , Ziyan Yang , Yuan Cao , Quanquan Gu

Fine-tuning is widely applied in image classification tasks as a transfer learning approach. It re-uses the knowledge from a source task to learn and obtain a high performance in target tasks. Fine-tuning is able to alleviate the challenge…

计算机视觉与模式识别 · 计算机科学 2022-07-27 Xuyang Shen , Jo Plested , Sabrina Caldwell , Yiran Zhong , Tom Gedeon

We propose a new variant of AMSGrad, a popular adaptive gradient based optimization algorithm widely used for training deep neural networks. Our algorithm adds prior knowledge about the sequence of consecutive mini-batch gradients and…

机器学习 · 统计学 2020-11-04 Jun-Kun Wang , Xiaoyun Li , Belhal Karimi , Ping Li

Federated learning faces critical challenges in balancing communication efficiency and model accuracy. One key issue lies in the approximation of update errors without incurring high computational costs. In this paper, we propose a…

机器学习 · 计算机科学 2025-05-29 Ganglou Xu

Fashion image retrieval task aims to search relevant clothing items of a query image from the gallery. The previous recipes focus on designing different distance-based loss functions, pulling relevant pairs to be close and pushing…

计算机视觉与模式识别 · 计算机科学 2023-03-09 Jinkuan Zhu , Hao Huang , Qiao Deng , Xiyao Li

The backpropagation algorithm, despite its widespread use in neural network learning, may not accurately emulate the human cortex's learning process. Alternative strategies, such as the Forward-Forward Algorithm (FFA), offer a closer match…

神经与进化计算 · 计算机科学 2023-05-23 Desmond Y. M. Tang

Adaptive optimization methods such as AdaGrad, RMSprop and Adam have been proposed to achieve a rapid training process with an element-wise scaling term on learning rates. Though prevailing, they are observed to generalize poorly compared…

机器学习 · 计算机科学 2019-04-22 Liangchen Luo , Yuanhao Xiong , Yan Liu , Xu Sun

Reference-based super-resolution (RefSR) has made significant progress in producing realistic textures using an external reference (Ref) image. However, existing RefSR methods obtain high-quality correspondence matchings consuming quadratic…

计算机视觉与模式识别 · 计算机科学 2022-03-11 Bin Xia , Yapeng Tian , Yucheng Hang , Wenming Yang , Qingmin Liao , Jie Zhou

Federated learning (FL) systems face performance challenges in dealing with heterogeneous devices and non-identically distributed data across clients. We propose a dynamic global model aggregation method within Asynchronous Federated…

机器学习 · 计算机科学 2024-02-02 Jikun Gao , Ioannis Mavromatis , Peizheng Li , Pietro Carnelli , Aftab Khan

Aspect-based Sentiment Analysis (ABSA) aims to determine sentiment polarity toward specific aspects in text. Existing methods enrich semantic and syntactic representations through external knowledge or GNNs, but the growing diversity of…

人工智能 · 计算机科学 2025-12-01 Xinran Li , Xiaowei Zhao , Yubo Zhu , Zhiheng Zhang , Zhiqi Huang , Hongkun Song , Jinglu Hu , Xinze Che , Yifan Lyu , Yong Zhou , Xiujuan Xu

Alignment with human preference is a desired property of large language models (LLMs). Currently, the main alignment approach is based on reinforcement learning from human feedback (RLHF). Despite the effectiveness of RLHF, it is intricate…

计算与语言 · 计算机科学 2024-04-16 Geyang Guo , Ranchi Zhao , Tianyi Tang , Wayne Xin Zhao , Ji-Rong Wen

The Forward-Forward (FF) learning algorithm provides a bottom-up alternative to backpropagation (BP) for training neural networks, relying on a layer-wise "goodness" function with well-designed negative samples for contrastive learning.…

机器学习 · 计算机科学 2025-11-11 Zhichao Zhu , Yang Qi , Hengyuan Ma , Wenlian Lu , Jianfeng Feng

This research studies an adaptive neural network with a Dynamic Classifier Selection framework on Field-Programmable Gate Arrays (FPGAs). The evaluations are conducted across three different datasets. By adjusting parameters, the…

硬件体系结构 · 计算机科学 2024-08-28 Achraf El Bouazzaoui , Abdelkader Hadjoudja , Omar Mouhib

Multimodal sentiment analysis (MSA) leverages information fusion from diverse modalities (e.g., text, audio, visual) to enhance sentiment prediction. However, simple fusion techniques often fail to account for variations in modality…

机器学习 · 计算机科学 2025-10-03 Han Wu , Yanming Sun , Yunhe Yang , Derek F. Wong

With the increasing maturity of the text-to-image and image-to-image generative models, AI-generated images (AGIs) have shown great application potential in advertisement, entertainment, education, social media, etc. Although remarkable…

计算机视觉与模式识别 · 计算机科学 2024-04-24 Tianwei Zhou , Songbai Tan , Wei Zhou , Yu Luo , Yuan-Gen Wang , Guanghui Yue

To stabilize the training of Large Language Models (LLMs), gradient clipping is a nearly ubiquitous heuristic used to alleviate exploding gradients. However, traditional global norm clipping erroneously presupposes gradient homogeneity…

机器学习 · 计算机科学 2026-01-21 Zhiyuan Li , Yuan Wu , Yi Chang

Recent advances in deep learning have significantly propelled the development of image forgery localization. However, existing models remain highly vulnerable to adversarial attacks: imperceptible noise added to forged images can severely…

计算机视觉与模式识别 · 计算机科学 2025-06-17 Rongxuan Peng , Shunquan Tan , Xianbo Mo , Alex C. Kot , Jiwu Huang
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