Understanding and designing functional materials with customized properties relies on the ability to integrate and analyze data from multiple characterization tools designed to probe complementary ranges of space, time, and… Click to show full abstract
Understanding and designing functional materials with customized properties relies on the ability to integrate and analyze data from multiple characterization tools designed to probe complementary ranges of space, time, and energy. Recent advances in hardware, algorithms, and imaging technologies have made large volumes of high veracity materials data easy to acquire, store, and process. However, these typically mixed, hyperspectral data sets conceal unexamined information that is difficult to tease out, coregister, and interpret when the data size is large, complex, and corrupted by noise and/or artifacts. This tutorial will showcase analysis strategies, and how-to approaches in processing of images, hyperspectral images, as well as time-series, and time-frequency spectral data using unsupervised multivariate methods, Bayesian inference and machine learning algorithms. A focus of this tutorial is to go beyond presenting the data and describing the algorithmic outcomes, and further to showcase how to load, preprocess, analyze, and visualize the data, while maintaining a record of the analysis steps undertaken. The instructors will rely heavily on open source, freely accessible Python libraries NumPy, SciPy, OpenCV, Pycroscopy, etc. The information presented in this tutorial will be made available to download throughout the presentations and afterwards in the form of Python Jupyter notebooks. Figure 1 illustrates some of the concepts and methods covered during the tutorial. Furthermore, the instructors will utilize and demonstrate the use of Bellerophon Environment for Analysis of Materials – BEAM, as a part of the analysis workflow. BEAM, is computational workflow managing software, available on Apple, Linux, and Windows. This lightweight Java application is designed to make High Performance Computing (HPC) platforms easy to use by offering an intuitive graphical-user-interface, a choice of scalable data analysis algorithms, simulation packages, input and output data storage all with a click of a button. This tutorial will bring together expertise from various fields (ion and electron microscopies, scanning probes, atom probe tomography, chemical imaging, etc.) to discuss strategies for the analysis of multidimensional hyperspectral data. Relating extracted parameter fields to underlying physics will also be discussed. As an outcome of this tutorial, we aim to identify a set of approaches that will significantly increase the quality of information extracted from imaging data, discuss their implementation, and highlight the strengths and weaknesses of various methods when dealing with a particular type of a problem. At the same time, we hope to spark potential collaborations and discussions amongst researchers in the area of statistics, computational sciences, and materials and build a community for sourcing and sharing analysis methods in the future. 1394 doi:10.1017/S1431927617007632 Microsc. Microanal. 23 (Suppl 1), 2017 © Microscopy Society of America 2017
               
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