用深度残差网络捕捉引力波异常信号,精度超传统方法。
DeepGrav: Anomalous Gravitational-Wave Detection Through Deep Latent Features
- 基于改进的残差网络提取高维特征,保留信号与噪声差异
- 验证阶段TNR达0.9708,测试集达0.9832,居所有参赛者首位
- 适合引力波探测中未知波形异常识别任务
本文提出一种基于深度学习的引力波异常检测新方法,旨在克服传统匹配滤波在识别未知波形信号时的局限性。受ResNet启发,设计一种改进型卷积神经网络,利用残差块提取高维特征,有效捕捉背景噪声与引力波信号间的细微差异。该网络在学习高维投影的同时保持与原始输入的差异性,有助于精确识别引力波信号。实验中采用创新的数据增强策略,通过计算多个信号样本的算术平均生成新数据,同时保留原始关键特征。在NSF HDR A3D3:检测异常引力波信号竞赛中,本模型(组名:easonyan123)在开发/验证阶段取得0.9708的真负率(TNR),在最终测试集上达到0.9832,为所有参赛者最高。结果表明,该方法不仅具备优异泛化能力,还能在引力波异常检测固有的复杂不确定性下保持强适应性。
原文摘要 · Abstract (English)
This work introduces a novel deep learning-based approach for gravitational wave anomaly detection, aiming to overcome the limitations of traditional matched filtering techniques in identifying unknown waveform gravitational wave signals. We introduce a modified convolutional neural network architecture inspired by ResNet that leverages residual blocks to extract high-dimensional features, effectively capturing subtle differences between background noise and gravitational wave signals. This network architecture learns a high-dimensional projection while preserving discrepancies with the original input, facilitating precise identification of gravitational wave signals. In our experiments, we implement an innovative data augmentation strategy that generates new data by computing the arithmetic mean of multiple signal samples while retaining the key features of the original signals. In the NSF HDR A3D3: Detecting Anomalous Gravitational Wave Signals competition, it is honorable for us (group name: easonyan123) to get to the first place at the end with our model achieving a true negative rate (TNR) of 0.9708 during development/validation phase and 0.9832 on an unseen challenge dataset during final/testing phase, the highest among all competitors. These results demonstrate that our method not only achieves excellent generalization performance but also maintains robust adaptability in addressing the complex uncertainties inherent in gravitational wave anomaly detection.
Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。