کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9952366 1449509 2018 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Exploring linear projections for revealing clusters, outliers, and trends in subsets of multi-dimensional datasets
ترجمه فارسی عنوان
بررسی پیش بینی های خطی برای آشکار سازی خوشه ها، ناهنجاری ها و روند در زیر مجموعه های مجموعه های چند بعدی
کلمات کلیدی
داده های چند بعدی، پروژکتور کاوش ویژوال،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
چکیده انگلیسی
Identifying patterns in 2D linear projections is important in understanding multi-dimensional datasets. However, local patterns, which are composed of partial data points, are usually obscured by noises and missed in traditional quality measure approaches that measure the whole dataset. In this paper, we propose an interactive interface to explore 2D linear projections with visual patterns on subsets. First, we propose a voting-based algorithm to recommend optimal projection, in which the identified pattern looks the most salient. Specifically, we propose three kinds of point-wise quality metrics of 2D linear projections for outliers, clusterings, and trends, respectively. For each sampled projection, we measure its importance by accumulating the metrics of selected points. The projection with the highest importance is recommended. Second, we design an exploring interface with a scatterplot, a projection trail map, and a control panel. Our interface allows users to explore projections by specifying interested data subsets. At last, we employ three datasets and demonstrate the effectiveness of our approach through three case studies of exploring clusters, outliers, and trends.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Visual Languages & Computing - Volume 48, October 2018, Pages 52-60
نویسندگان
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