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- W4385946175 abstract "Dimensionality reduction (DR) techniques inherently distort the original structure of input high-dimensional data, producing imperfect low-dimensional embeddings. Diverse distortion measures have thus been proposed to evaluate the reliability of DR embeddings. However, implementing and executing distortion measures in practice has so far been time-consuming and tedious. To address this issue, we present ZADU, a Python library that provides distortion measures. ZADU is not only easy to install and execute but also enables comprehensive evaluation of DR embeddings through three key features. First, the library covers a wide range of distortion measures. Second, it automatically optimizes the execution of distortion measures, substantially reducing the running time required to execute multiple measures. Last, the library informs how individual points contribute to the overall distortions, facilitating the detailed analysis of DR embeddings. By simulating a real-world scenario of optimizing DR embeddings, we verify that our optimization scheme substantially reduces the time required to execute distortion measures. Finally, as an application of ZADU, we present another library called ZADUVis that allows users to easily create distortion visualizations that depict the extent to which each region of an embedding suffers from distortions." @default.
- W4385946175 created "2023-08-18" @default.
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- W4385946175 date "2023-08-01" @default.
- W4385946175 modified "2023-09-26" @default.
- W4385946175 title "ZADU: A Python Library for Evaluating the Reliability of Dimensionality Reduction Embeddings" @default.
- W4385946175 doi "https://doi.org/10.48550/arxiv.2308.00282" @default.
- W4385946175 hasPublicationYear "2023" @default.
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