کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6938856 1449966 2018 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Time Alignment Measurement for Time Series
ترجمه فارسی عنوان
اندازه گیری هماهنگی زمان برای سری زمانی
کلمات کلیدی
سری زمانی، انحراف زمان، شباهت، فاصله، هماهنگی سیگنال،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر چشم انداز کامپیوتر و تشخیص الگو
چکیده انگلیسی
When a comparison between time series is required, measurement functions provide meaningful scores to characterize similarity between sequences. Quite often, time series appear warped in time, i.e, although they may exhibit amplitude and shape similarity, they appear dephased in time. The most common algorithm to overcome this challenge is the Dynamic Time Warping, which aligns each sequence prior establishing distance measurements. However, Dynamic Time Warping takes only into account amplitude similarity. A distance which characterizes the degree of time warping between two sequences can deliver new insights for applications where the timing factor is essential, such well-defined movements during sports or rehabilitation exercises. We propose a novel measurement called Time Alignment Measurement, which delivers similarity information on the temporal domain. We demonstrate the potential of our approach in measuring performance of time series alignment methodologies and in the characterization of synthetic and real time series data acquired during human movement.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Pattern Recognition - Volume 81, September 2018, Pages 268-279
نویسندگان
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