کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4973822 1451717 2017 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Second-order optimization based adaptive PARAFAC decomposition of three-way tensors
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
پیش نمایش صفحه اول مقاله
Second-order optimization based adaptive PARAFAC decomposition of three-way tensors
چکیده انگلیسی
A fast adaptive parallel factor (PARAFAC) decomposition algorithm is proposed for a class of third-order tensors that have one dimension growing linearly with time. It is based on an alternating least squares approach in conjunction with a Newton-type optimization technique. By preserving the Khatri-Rao product and exploiting the reduced-rank update structure of the estimated subspace at each time instant, the algorithm achieves linear complexity and superior convergence performance. A modified version of the algorithm is also proposed to deal with the non-negative constraint. In addition, parallel implementation issues are investigated. Finally, the performance of the algorithm is numerically studied and compared to several state-of-the-art algorithms.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Digital Signal Processing - Volume 63, April 2017, Pages 100-111
نویسندگان
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