کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11023513 | 1701282 | 2019 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Resolution of overlapping terahertz spectra using non-negative matrix factorization base on pure variables initialization
ترجمه فارسی عنوان
وضوح طیف تارترز همپوشانی با استفاده از مبنای فاکتورسازی ماتریکس غیر منفی بر مقدار اولیه متغیرهای خالص
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
چکیده انگلیسی
In many cases, especially for multi-component mixture, the overlap of spectra will greatly affect the identification accuracy. It is not a reliable method to identify components only by analyzing absorption peaks of mixture directly. Resolution of overlapping THz spectra is a useful way for identification. In this paper, we used the non-negative matrix factorization (NMF) base on pure variables initialization for resolution THz spectra of multi-component mixture. Instead of random non-negative initialization, we introduced the pure variables of which makes the initialization process more intuitive and more interpretable. To verify the proposed method, binary and ternary mixture was preparation. The results show that NMF base on pure variables initialization can resolve the THz spectra of mixture into the spectra of components. Moreover, the initialization method base on pure variables needs fewer iterations than the initialization method base on random non-negative values. It also means that NMF base on pure variables initialization is a potential new approach to identify each pure component in a multi-component mixture.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - Volume 176, January 2019, Pages 600-610
Journal: Optik - Volume 176, January 2019, Pages 600-610
نویسندگان
Jingzhong Gan, Binyi Qin, Yun Li, Jie Qiu,