Machine learning is a field that has been growing in importance since the early 2010s due to the increasing accuracy of classification models and hardware advances that have enabled faster training on large datasets. In the field of astronomy, tree-based models and simple neural networks have recently garnered attention as a means of classifying celestial objects based on photometric data. We apply common tree-based models to assess performance of these models for discriminating objects with similar photometric signals, pulsars and black holes. We also train a RNN on a downsampled and normalized version of the raw signal data to examine its potential as a model capable of object discrimination and classification in real-time.
翻译:自2010年代初以来,随着分类模型精度的提升以及硬件进步使得大规模数据集上的快速训练成为可能,机器学习领域的重要性日益凸显。在天文学领域,基于树结构的模型和简单神经网络最近因其能够依据测光数据对天体进行分类而受到关注。本研究应用常见的树模型评估其在区分具有相似测光信号的天体(如脉冲星与黑洞)时的性能。同时,我们在下采样并归一化的原始信号数据上训练循环神经网络(RNN),以探究其作为实时天体判别与分类模型的潜力。