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- rapid-communicationJanuary 2025
DOA estimation of noncircular signals with direction-dependent mutual coupling
AbstractIn this paper, a reweighted sparse recovery algorithm based on the optimal weighted subspace fitting (WSF) for non-circular signals in direction-dependent mutual coupling (MC) is proposed. Firstly, a new augmented model is constructed by ...
- research-articleJanuary 2025
Reinforcement learning-based adaptive event-triggered control of multi-agent systems with time-varying dead-zone
Applied Mathematics and Computation (APMC), Volume 486, Issue Chttps://doi.org/10.1016/j.amc.2024.129059AbstractIn this paper, a novel reinforcement learning (RL)-based adaptive event-triggered control problem is studied for non-affine multi-agent systems (MASs) with time-varying dead-zone. The purpose is to design an efficient event-triggered mechanism to ...
Highlights- Inspired by the event-triggered mechanism in [25,26], an improved smooth event-triggered mechanism is proposed to better reduce the waste of communication resources. Specifically, the improved trigger signal is smooth and differentiable, ...
- research-articleJanuary 2025
Hyperspectral anomaly detection based on weighted low-rank sparse dictionary learning
AbstractThe geometric model-based hyperspectral anomaly detection techniques have garnered a lot of interest recently. These methods are predicated on the assumption that the background can be represented by a dictionary of spectral vectors, but the ...
- research-articleDecember 2024
Enhanced Crowdsourced Test Report Prioritization via Image-and-Text Semantic Understanding and Feature Integration
IEEE Transactions on Software Engineering (ISOF), Volume 51, Issue 1Pages 283–304https://doi.org/10.1109/TSE.2024.3516372Crowdsourced testing has gained prominence in the field of software testing due to its ability to effectively address the challenges posed by the fragmentation problem in mobile app testing. The inherent openness of crowdsourced testing brings diversity ...
- research-articleDecember 2024
Beamforming made Malicious: Manipulating Wi-Fi Traffic via Beamforming Feedback Forgery
ACM MobiCom '24: Proceedings of the 30th Annual International Conference on Mobile Computing and NetworkingPages 908–922https://doi.org/10.1145/3636534.3690669New Wi-Fi systems have leveraged beamforming to manage a significant portion of traffic for achieving high throughput and reliability. Unfortunately, this has amplified certain security risks since beamforming critically relies on the clear-text ...
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- research-articleDecember 2024
FreqFormer: A Frequency Transformer for Semantic Segmentation of Remote Sensing Images
MMAsia '24: Proceedings of the 6th ACM International Conference on Multimedia in AsiaArticle No.: 16, Pages 1–8https://doi.org/10.1145/3696409.3700176Semantic segmentation of remote sensing images (RSIs) is vital for geospatial intelligence. However, traditional methods face challenges with mixed pixels and complex land cover types. Convolutional neural networks and transformers have led the field of ...
- ArticleDecember 2024
GeoGLUE: A Chinese GeoGraphic Language Understanding Evaluation Benchmark
- Dongyang Li,
- Ruixue Ding,
- Qiang Zhang,
- Zheng Li,
- Boli Chen,
- Pengjun Xie,
- Yao Xu,
- Xin Li,
- Ning Guo,
- Fei Huang,
- Xiaofeng He
AbstractWith the rapid growth of geographic applications, automatable and intelligent models are essential to be designed to handle the large volume of information. However, few researchers focus on geographic natural language processing, and there has ...
- ArticleDecember 2024
Dual-Attention Fusion Network with Edge and Content Guidance for Remote Sensing Images Segmentation
AbstractThis paper investigates the problem of semantic segmentation in high-resolution remote sensing images, aiming to predict semantic labels at a pixel-level granularity. Faced with the complexity and heterogeneity inherent in high-resolution remote ...
- letterNovember 2024
Optimizing low-rank adaptation with decomposed matrices and adaptive rank allocation
Frontiers of Computer Science: Selected Publications from Chinese Universities (FCS), Volume 19, Issue 5https://doi.org/10.1007/s11704-024-40317-wConclusionIn this paper, we argue that the same rank setting of LoRA will inhibit its potential. In response, we proposed two novel PEFT strategies to improve the capability of LoRA in single-task and multi-task scenarios. We also conducted extensive ...
- research-articleNovember 2024
Fine-grained recognition via submodular optimization regulated progressive training
AbstractProgressive training has unfolded its superiority on a wide range of downstream tasks. However, it may fail in fine-grained recognition (FGR) due to special challenges with high intra-class and low inter-class variances. In this paper, we propose ...
Highlights- We are the first to exploit the sub–modularity for active sample selection. By our problem formulation, the optimal category subsets can be progressively selected for obtaining steady cumulative gain.
- We combine submodular optimization ...
- research-articleNovember 2024
Learning real-world heterogeneous noise models with a benchmark dataset
AbstractNoise modeling is an important research field in computer vision; the design of an accurate model for imaging sensor noise depends on not only a comprehensive benchmark dataset of the real world, but also a precise design of the noise modeling ...
Highlights- Current realistic datasets could not describe diverse noise properties sufficiently.
- Parametric noise models cannot characterize the real-world noise exactly.
- Constructing a more comprehensive real-world benchmark dataset.
- ...
- research-articleNovember 2024
A2GCN: Graph Convolutional Networks with Adaptive Frequency and Arbitrary Order
AbstractGraph Neural Networks (GNNs) gain remarkable success in various graph learning tasks under homophily graph assumption. This assumption is extremely fragile since real-world graphs with heterophily are ubiquitous. Under this circumstance, existing ...
Highlights- We discuss the weakness of the current spectral graph neural networks in expressive power.
- We present a novel simple but effective frequency adaptive filter learning method.
- By utilizing the adaptive filter at each layer, our model ...
- research-articleNovember 2024
Attendance Tracking System using Many Battery-free Photovoltaic Bluetooth Beacon Badges
- Chenyang Wu,
- Lei Che,
- Siyu Jin,
- Cheng Tian,
- Gongwei Wang,
- Siyang Liu,
- Xin Li,
- Guobiao Hu,
- Lihua Tang,
- Junrui Liang
ENSsys '24: Proceedings of the 12th International Workshop on Energy Harvesting and Energy-Neutral Sensing SystemsPages 15–20https://doi.org/10.1145/3698384.3699613The concept of ambient IoT was introduced by 3GPP to describe low-cost, self-powered, or battery-free sensor nodes, which may reach up to 10 trillion units in the future. By replacing chemical batteries in many standalone IoT devices, we can achieve ...
- research-articleJanuary 2025
Duration-aware and mode-aware micro-expression spotting for long video sequences
AbstractMicro-expressions (MEs) are unconscious, instant and slight facial movements, revealing people’s true emotions. Locating MEs is a prerequisite of classifying them, while only a few researches focus on this task. Among them, sliding window based ...
Highlights- We utilize multiple sliding windows of different scales and modes to generate multiple weak detectors, each accommodating MEs (Micro-Expressions) of certain durations and transition modes.
- We design a majority voting based aggregation ...
- rapid-communicationNovember 2024
Dual-domain sampling and feature-domain optimization network for image compressive sensing
Engineering Applications of Artificial Intelligence (EAAI), Volume 137, Issue PAhttps://doi.org/10.1016/j.engappai.2024.109099AbstractRecently, deep unfolding networks have become the mainstream approach for deep compressed sensing methods due to their good interpretability and high reconstruction performance. However, these existing deep unfolding networks, which usually rely ...
- research-articleNovember 2024
Conformal structure-preserving SVM methods for the nonlinear Schrödinger equation with weakly linear damping term
Applied Numerical Mathematics (APNM), Volume 205, Issue CPages 120–136https://doi.org/10.1016/j.apnum.2024.06.024AbstractIn this paper, by applying the supplementary variable method (SVM), some high-order, conformal structure-preserving, linearized algorithms are developed for the damped nonlinear Schrödinger equation. We derive the well-determined SVM systems with ...
- research-articleOctober 2024
LightUAV-YOLO: a lightweight object detection model for unmanned aerial vehicle image
AbstractObject detection in unmanned aerial vehicle (UAV) images presents challenges such as high altitudes, small object sizes, and complex backgrounds. Additionally, many deep learning object detection algorithms require substantial computational ...
- research-articleOctober 2024JUST ACCEPTED
How do Large Language Models understand Genes and Cells
- Chen Fang,
- Yidong Wang,
- Yunze Song,
- Qingqing Long,
- Wang Lu,
- Linghui Chen,
- Guihai Feng,
- Yuanchun Zhou,
- Xin Li
ACM Transactions on Intelligent Systems and Technology (TIST), Just Accepted https://doi.org/10.1145/3702234Researching genes and their interactions is crucial for deciphering the fundamental laws of cellular activity, advancing disease treatment, drug discovery, and more. Large language Models (LLMs), with their profound text comprehension and generation ...
- research-articleOctober 2024
Attention Mixture Network for Crowd Counting via Binarization Transfer
McGE '24: Proceedings of the 2nd International Workshop on Multimedia Content Generation and Evaluation: New Methods and PracticePages 45–53https://doi.org/10.1145/3688867.3690172Crowd counting endeavors to estimate the numerical count of individuals present within an image depicting a gathering of people. In recent years, there has been notable and gradual advancement in the realm of crowd counting, driven by the integration of ...
- research-articleOctober 2024
Temporal Enhancement for Video Affective Content Analysis
MM '24: Proceedings of the 32nd ACM International Conference on MultimediaPages 642–650https://doi.org/10.1145/3664647.3681631With the popularity and advancement of the Internet and video-sharing platforms, video affective content analysis has greatly developed. Temporal information is crucial for this task. Nevertheless, existing methods often overlook the fact that there is ...