Cosmic super string detection using dilated convolutional neural network with focal loss
AuthorIshrak, Mohammed Hasin
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Cosmic string are objects of great importance and investigation for cosmic string has been done from last 20 years. There are a lot of models to detect cosmic string.But a very few are to detect the location of cosmic string.We propose a framework to detect the location of cosmic string. We used di- lated convolutional net with focal loss instead of cross-entropy to improved the performance of the framework on weak samples. The neural network we trained is able to detect and locate cosmic string on noiseless CMB temper- ature map down to a string tension of less then G =5 109. We expect to use more accurate simulation to produce data set to improve the con dence of the model.