238 research outputs found
Visus: An Interactive System for Automatic Machine Learning Model Building and Curation
While the demand for machine learning (ML) applications is booming, there is
a scarcity of data scientists capable of building such models. Automatic
machine learning (AutoML) approaches have been proposed that help with this
problem by synthesizing end-to-end ML data processing pipelines. However, these
follow a best-effort approach and a user in the loop is necessary to curate and
refine the derived pipelines. Since domain experts often have little or no
expertise in machine learning, easy-to-use interactive interfaces that guide
them throughout the model building process are necessary. In this paper, we
present Visus, a system designed to support the model building process and
curation of ML data processing pipelines generated by AutoML systems. We
describe the framework used to ground our design choices and a usage scenario
enabled by Visus. Finally, we discuss the feedback received in user testing
sessions with domain experts.Comment: Accepted for publication in the 2019 Workshop on Human-In-the-Loop
Data Analytics (HILDA'19), co-located with SIGMOD 201
Visualization and Analysis Tools for Ultrascale Climate Data
Increasingly large climate model simulations are enhancing our understanding of the processes and causes of anthropogenic climate change, thanks to very large public investments in high-performance computing at national and international institutions. Various climate models implement mathematical approximations of nature in different ways, which are often based on differing computational grids. These complex, parallelized coupled system codes combine numerous complex submodels (ocean, atmosphere, land, biosphere, sea ice, land ice, etc.) that represent components of the larger complex climate system
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