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To enhance the accuracy and robustness of PM$_{2.5}$ concentration forecasting, this paper introduces FALNet, a Frequency-Aware LSTM Network that integrates frequency-domain decomposition, temporal modeling, and attention-based refinement.…

机器学习 · 计算机科学 2025-04-16 Jiahui Lu , Shuang Wu , Zhenkai Qin , Guifang Yang

Machine learning techniques using neural networks have achieved promising success for time-series data classification. However, the models that they produce are challenging to verify and interpret. In this paper, we propose an explainable…

形式语言与自动机理论 · 计算机科学 2023-07-04 Danyang Li , Mingyu Cai , Cristian-Ioan Vasile , Roberto Tron

Efficient video recognition is a hot-spot research topic with the explosive growth of multimedia data on the Internet and mobile devices. Most existing methods select the salient frames without awareness of the class-specific saliency…

计算机视觉与模式识别 · 计算机科学 2022-07-22 Boyang Xia , Zhihao Wang , Wenhao Wu , Haoran Wang , Jungong Han

Ubiquitous sensors today emit high frequency streams of numerical measurements that reflect properties of human, animal, industrial, commercial, and natural processes. Shifts in such processes, e.g. caused by external events or internal…

机器学习 · 计算机科学 2025-04-04 Arik Ermshaus , Patrick Schäfer , Ulf Leser

Curvature regularization techniques like Sharpness Aware Minimization (SAM) have shown great promise in improving generalization on vision tasks. However, we find that SAM performs poorly in domains like natural language processing (NLP),…

机器学习 · 计算机科学 2025-02-05 Sidak Pal Singh , Hossein Mobahi , Atish Agarwala , Yann Dauphin

Channel estimation is one of the key issues in practical massive multiple-input multiple-output (MIMO) systems. Compared with conventional estimation algorithms, deep learning (DL) based ones have exhibited great potential in terms of…

信息论 · 计算机科学 2021-08-24 Jiabao Gao , Mu Hu , Caijun Zhong , Geoffrey Ye Li , Zhaoyang Zhang

Segment Anything Model (SAM) has gained significant recognition in the field of semantic segmentation due to its versatile capabilities and impressive performance. Despite its success, SAM faces two primary limitations: (1) it relies…

计算机视觉与模式识别 · 计算机科学 2026-01-21 Yuchen Li , Li Zhang , Youwei Liang , Pengtao Xie

Deep neural networks have been increasingly used in safety-critical applications such as medical diagnosis and autonomous driving. However, many studies suggest that they are prone to being poorly calibrated and have a propensity for…

机器学习 · 计算机科学 2025-06-02 Chengli Tan , Yubo Zhou , Haishan Ye , Guang Dai , Junmin Liu , Zengjie Song , Jiangshe Zhang , Zixiang Zhao , Yunda Hao , Yong Xu

Environmental sound classification (ESC) is a challenging problem due to the unstructured spatial-temporal relations that exist in the sound signals. Recently, many studies have focused on abstracting features from convolutional neural…

声音 · 计算机科学 2022-05-31 Liguang Zhou , Yuhongze Zhou , Xiaonan Qi , Junjie Hu , Tin Lun Lam , Yangsheng Xu

In this paper, we propose a method for home activity monitoring. We demonstrate our model on dataset of Detection and Classification of Acoustic Scenes and Events (DCASE) 2018 Challenge Task 5. This task aims to classify multi-channel…

声音 · 计算机科学 2018-11-15 Yu-Han Shen , Ke-Xin He , Wei-Qiang Zhang

Attention mechanism has gained great success in vision recognition. Many works are devoted to improving the effectiveness of attention mechanism, which finely design the structure of the attention operator. These works need lots of…

计算机视觉与模式识别 · 计算机科学 2022-09-14 Shanshan Zhong , Wushao Wen , Jinghui Qin

Time series classification is of significant importance in monitoring structural systems. In this work, we investigate the use of supervised machine learning classification algorithms on simulated data based on a physical system with two…

机器学习 · 计算机科学 2024-03-14 Ergys Çokaj , Halvor Snersrud Gustad , Andrea Leone , Per Thomas Moe , Lasse Moldestad

This paper presents a novel Sequence-to-Sequence (Seq2Seq) model based on a transformer-based attention mechanism and temporal pooling for Non-Intrusive Load Monitoring (NILM) of smart buildings. The paper aims to improve the accuracy of…

信号处理 · 电气工程与系统科学 2023-06-09 Mohammad Irani Azad , Roozbeh Rajabi , Abouzar Estebsari

Although a variety of methods have been proposed for sequential recommendation, it is still far from being well solved partly due to two challenges. First, the existing methods often lack the simultaneous consideration of the global…

信息检索 · 计算机科学 2022-08-10 Lihua Chen , Ning Yang , Philip S Yu

Accommodating long sequences efficiently in autoregressive Transformers, especially within an extended context window, poses significant challenges due to the quadratic computational complexity and substantial KV memory requirements…

计算与语言 · 计算机科学 2024-06-25 Chao Lou , Zixia Jia , Zilong Zheng , Kewei Tu

Lifelong sequential modeling (LSM) is becoming increasingly critical in social media recommendation systems for predicting the click-through rate (CTR) of items presented to users. Central to this process is the attention mechanism, which…

信息检索 · 计算机科学 2025-04-14 Ting Guo , Zhaoyang Yang , Qinsong Zeng , Ming Chen

Time series forecasting is essential for many practical applications, with the adoption of transformer-based models on the rise due to their impressive performance in NLP and CV. Transformers' key feature, the attention mechanism,…

机器学习 · 计算机科学 2024-02-09 PeiSong Niu , Tian Zhou , Xue Wang , Liang Sun , Rong Jin

Time Series Classification (TSC) encompasses two settings: classifying entire sequences or classifying segmented subsequences. The raw time series for segmented TSC usually contain Multiple classes with Varying Duration of each class (MVD).…

人工智能 · 计算机科学 2025-04-24 Junru Chen , Tianyu Cao , Jing Xu , Jiahe Li , Zhilong Chen , Tao Xiao , Yang Yang

With the development of society, time series anomaly detection plays an important role in network and IoT services. However, most existing anomaly detection methods directly analyze time series in the time domain and cannot distinguish some…

人工智能 · 计算机科学 2024-12-04 Yi-Xiang Lu , Xiao-Bo Jin , Jian Chen , Dong-Jie Liu , Guang-Gang Geng

Objective: Magnetic resonance imaging (MRI) has been widely used for the analysis and diagnosis of brain diseases. Accurate and automatic brain tumor segmentation is of paramount importance for radiation treatment. However, low tissue…

图像与视频处理 · 电气工程与系统科学 2022-04-18 Jiangyun Li , Hong Yu , Chen Chen , Meng Ding , Sen Zha