Publications

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1579 Publications visible to you, out of a total of 1579

Abstract

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Author: Ina A. Pöhner

Date Published: 2020

Publication Type: Doctoral Thesis

Abstract (Expand)

We study an interval exchange transformation of [0,1] formed by cutting the interval at the points 1/n and reversing the order of the intervals. We find that the transformation is periodic away from a Cantor set of Hausdorff dimension zero. On the Cantor set, the dynamics are nearly conjugate to the 2-adic odometer.

Authors: W. Patrick Hooper, Kasra Rafi, Anja Randecker

Date Published: 2020

Publication Type: Journal

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Authors: R Andrassy, F Herwig, P Woodward, C Ritter

Date Published: 2020

Publication Type: Journal

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Authors: F. R. N. Schneider, S. T. Ohlmann, Ph Podsiadlowski, F. K. Röpke, S. A. Balbus, R. Pakmor

Date Published: 2020

Publication Type: Journal

Abstract (Expand)

Among the many challenges posed by the huge data volumes produced by the new generation of astronomical instruments there is also the search for rare and peculiar objects. Unsupervised outlier detection algorithms may provide a viable solution. In this work we compare the performances of six methods: the Local Outlier Factor, Isolation Forest, k-means clustering, a measure of novelty, and both a normal and a convolutional autoencoder. These methods were applied to data extracted from SDSS stripe 82. After discussing the sensitivity of each method to its own set of hyperparameters, we combine the results from each method to rank the objects and produce a final list of outliers.

Authors: Lars Doorenbos, Stefano Cavuoti, Massimo Brescia, Antonio D'Isanto, Giuseppe Longo

Date Published: 2020

Publication Type: Journal

Abstract

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Author: Jonas R. Brehmer

Date Published: 2020

Publication Type: Doctoral Thesis

Abstract

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Authors: Johanna F Ziegel, Fabian Krüger, Alexander Jordan, Fernando Fasciati

Date Published: 2020

Publication Type: Journal

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