An uncertainty sampling strategy based model updating method for soluble solid content and firmness prediction of apples from different years
نویسندگان
چکیده
Visible/near-infrared spectroscopy combined with chemometric methods has been widely used in fruit quality detection. In order to ensure the performance of prediction model, calibration samples train model should cover range variability anticipated samples. However, this requirement is difficult meet practice, especially, for detection from cross-years variational cultivation conditions, climate as well growing management. study, a updating method based on uncertainty sampling strategy was proposed accommodate sample different periods. The firstly selected feature wavebands form new space by using PLS projection analysis (PLS-P) algorithm. representative which have high similarity were then original set and initial partial least squares regression (PLSR) model. spectral predicted value PLSR applied obtain most informative set, these added training set. Finally, updated iteratively until demand met. Three cultivars apples, namely, ‘Jonagold’, ‘Golden Delicious’ ‘Red Delicious’, harvested 2009 2010 evaluating method. Compared random (RS), traditional Kennard-Stone (KS) joint x-y distances (SPXY), achieved best performance. It demonstrated that an effective way improve accuracy cross-years.
منابع مشابه
a paradigm shift away from method-wise teaching to strategy-wise teaching: an investigation of reconstructive strategy versus communicative strategy
چکیده: هدف اصلی این مطالعه ی توصیفی تحقیقی در حقیقت تلاشی پساروش-گرا به منظور رسیدن به نتیجه ای منطقی در انتخاب مناسبترین راهکار آموزشی بر گرفته از چارچوب راهبردی مطرح شده توسط والدمر مارتن بوده که به بهترین شکل سازگار و مناسب با سامانه ی آموزشی ایران باشد. از این رو، دو راهکار آموزشی، راهکار ارتباطی و راهکار بازساختی، برای تحقیق و بررسی انتخاب شدند. صریحاً اینکه، در راستای هدف اصلی این پژوهش، ر...
15 صفحه اولdevelopment and implementation of an optimized control strategy for induction machine in an electric vehicle
in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...
15 صفحه اولthe innovation of a statistical model to estimate dependable rainfall (dr) and develop it for determination and classification of drought and wet years of iran
آب حاصل از بارش منبع تأمین نیازهای بی شمار جانداران به ویژه انسان است و هرگونه کاهش در کم و کیف آن مستقیماً حیات موجودات زنده را تحت تأثیر منفی قرار می دهد. نوسان سال به سال بارش از ویژگی های اساسی و بسیار مهم بارش های سالانه ایران محسوب می شود که آثار زیان بار آن در تمام عرصه های اقتصادی، اجتماعی و حتی سیاسی- امنیتی به نحوی منعکس می شود. چون میزان آب ناشی از بارش یکی از مولفه های اصلی برنامه ...
15 صفحه اولThe Study of Non-Destructive Measurement Apple's Firmness and Soluble solid Content Using Multispectral Imaging
Firmness and soluble solid content (SSC) are two important quality attributes. This researches investigated the feasibility of using multi-spectral imaging to non-destructive measuring the apple’s firmness and SSC. The spectral imaging in wavelength of 632nm、650nm、670nm、780nm、850nm and 900nm were captured. The Lorentzian distribution (LD), Gaussian distribution (GD) and Exponential distribution...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chemometrics and Intelligent Laboratory Systems
سال: 2021
ISSN: ['1873-3239', '0169-7439']
DOI: https://doi.org/10.1016/j.chemolab.2021.104426