Data for: Spectra Data Classification with Kernel Extreme Learning

Datasets for Spectra Data Classification:

"FTIR_Spectra_instant_coffee.csv":
contains a collection of 56 mid infrared diffuse reflectance (MIR-DRIFT) spectra of lyophilized coffee produced from two species: arabica (29 samples) and canephora var. robusta (27 samples).
The data are described in full in the journal paper "Near- and Mid-Infrared Spectroscopies in Food Authentication: Coffee Varietal Identification" (Downey G. et al, J. Agric. Food Chem. 45 (11) 4357-4361 (1997)).

"MIRFreshMeats.csv":
Duplicate acquisitions from 60 independent samples. Raw data matrix size [448 x 120]. Obtained using Fourier transform infrared (FTIR) spectroscopy with attenuated total reflectance (ATR) sampling. As described in "Mid-infrared spectroscopy and authenticity problems in selected meats: a feasibility study" Al-Jowder O, Kemsley E K, Wilson R. H.(1997) Food Chemistry 59 195-20.

"MIR_Fruit_Purees.csv":
contains a collection of 983 Mid-infrared spectra collected from different authenticated fruit purees in one of two classes: "Strawberry" (purees prepared from fresh whole fruits by the researchers) and "NON-Strawberry" (diverse collection of other purees, including: strawberry adulterated with other fruits and sugar solutions; raspberry; apple; blackcurrant; blackberry; plum; cherry; apricot; grape juice and mixtures of these.Spectra were acquired from each puree using attenuated total reflectance (ATR) sampling. The acquisition order was randomized with respect to sample type.
The data are described in more detail in the journal paper "Use of Fourier transform infrared spectroscopy and partial least squares regression for the detection of adulteration of strawberry purees" Holland JK, Kemsley EK, Wilson RH. (1998). Journal of the Science of Food and Agriculture, 76, 263-269

"FTIR_Spectra_olive_oils.csv":
contains a collection of 120 Mid-infrared spectra collected from 60 different authenticated extra virgin olive oils, supplied to the Institute of Food Research, UK, by the International Olive Oil Council.Spectra were acquired from each oil using attenuated total reflectance (ATR) sampling. The acquisition order was randomized with respect to the country of origin code. Once all the samples had been examined once, a second acquisition session commenced, to produce a second spectrum from each sample. Again the acquisition order was randomized with respect to country of origin. thus, duplicate spectra were collected from all samples.
The data are described in full in the journal paper "FTIR spectroscopy and multivariate analysis can distinguish the geographic origin of extra virgin olive oils" (Tapp H.S. et al, J. Agric. Food Chem. 51 (21) 6110-5 (2003)).

These data are free to analyse and redistribute for academic purpose; if you do so, please acknowledge the original sources (webpage and/or citation above).

光谱数据分类数据集：

"FTIR_Spectra_instant_coffee.csv"：包含56份源自两种冻干咖啡的中红外漫反射（Mid Infrared Diffuse Reflectance, MIR-DRIFT）光谱样本，其中阿拉比卡咖啡（arabica）样本29份，罗布斯塔卡尼弗拉变种（canephora var. robusta）样本27份。该数据集的详细信息刊载于期刊论文《Near- and Mid-Infrared Spectroscopies in Food Authentication: Coffee Varietal Identification》（Downey G. 等，《农业与食品化学杂志》（*J. Agric. Food Chem.*），45卷第11期，4357-4361页，1997年）。

"MIRFreshMeats.csv"：包含60份独立样本的重复采集光谱，原始数据矩阵尺寸为[448 × 120]。该数据集采用衰减全反射（Attenuated Total Reflectance, ATR）采样方式结合傅里叶变换红外（Fourier Transform Infrared, FTIR）光谱法获取。详细信息参见论文《Mid-infrared spectroscopy and authenticity problems in selected meats: a feasibility study》（Al-Jowder O, Kemsley E K, Wilson R. H.，1997年，《食品化学》（*Food Chemistry*），59卷，195-20页）。

"MIR_Fruit_Purees.csv"：包含983份中红外光谱，采集自经过身份验证的不同果泥样本，分为两类：“草莓”（由研究人员使用新鲜完整果实制备的果泥）与“非草莓”（涵盖多种其他果泥的集合，包括：掺杂其他水果与糖溶液的掺假草莓果泥、树莓果泥、苹果果泥、黑加仑果泥、黑莓果泥、西梅果泥、樱桃果泥、杏果泥、葡萄汁及其混合制品）。所有果泥样本均采用衰减全反射（ATR）采样方式采集光谱，采集顺序按照样本类型随机化。该数据集的详细信息刊载于期刊论文《Use of Fourier transform infrared spectroscopy and partial least squares regression for the detection of adulteration of strawberry purees》（Holland JK, Kemsley EK, Wilson RH.，1998年，《食品与农业科学杂志》（*Journal of the Science of Food and Agriculture*），76卷，263-269页）。

"FTIR_Spectra_olive_oils.csv"：包含120份中红外光谱，采集自60份经过身份验证的特级初榨橄榄油样本，这些橄榄油由国际橄榄油理事会提供给英国食品研究所。所有油样均采用衰减全反射（ATR）采样方式采集光谱，采集顺序按照原产国代码随机化。完成首轮全部样本采集后，启动第二轮采集流程，为每个样本获取第二份光谱；第二轮采集顺序同样按照原产国代码随机化，因此所有样本均拥有两份重复光谱。该数据集的详细信息刊载于期刊论文《FTIR spectroscopy and multivariate analysis can distinguish the geographic origin of extra virgin olive oils》（Tapp H.S. 等，《农业与食品化学杂志》（*J. Agric. Food Chem.*），51卷第21期，6110-5页，2003年）。

本数据集可免费用于学术分析与再分发；若进行使用，请注明原始来源（即上述网页及/或参考文献）。