Article
Geochemistry & Geophysics
Chein-I Chang
Summary: This article explores fundamental and conceptual issues in the application of the 2D ROC curve for hyperspectral anomaly detection, providing solutions and insights. By deriving a mathematical theory and conducting comprehensive analysis, it reveals the principles of plotting the 2D ROC curve and evaluating background suppression. The article also highlights that many detectors claiming good performance in AD actually perform poorly in BS.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2022)
Article
Agriculture, Dairy & Animal Science
M. Martin, M. D. Kleinhenz, K. S. Schwartzkopf-Genswein, D. Melendez, S. Marti, E. A. Pajor, E. D. Janzen, J. Coetzee
Summary: This study used ROC analysis to evaluate the predictive value of pain biomarkers in livestock. It found that plasma cortisol, hair cortisol, and IRT had higher AUC values, while salivary cortisol, MNT, substance P, kinematic gait analysis, and a visual analog scale for pain had lower AUC values.
JOURNAL OF DAIRY SCIENCE
(2022)
Article
Psychology, Multidisciplinary
Yueran Yang
Summary: This article discusses how to improve classification performance using ROC analysis and introduces a tool to visualize a classifier's expected utility. The analysis reveals that expected utility depends not only on the accuracy of a classifier but also on its operating point. Therefore, choosing the optimal operating point can maximize expected utility. The article also explores other methods beyond ROC analysis to increase expected utility.
PSYCHOLOGICAL METHODS
(2022)
Article
Computer Science, Hardware & Architecture
Ruhul Ali Khan
Summary: A new semiparametric model of the ROC curve is proposed, which is based on the resilience family or proportional reversed hazard family. The resulting ROC curve and its summary indices have simple analytic forms. The estimation methodologies of the resilience family and a simulation study to assess the performance of the estimators are discussed.
IEEE TRANSACTIONS ON RELIABILITY
(2023)
Article
Nutrition & Dietetics
Adam Drewnowski, Tanhia D. Gonzalez, Colin D. Rehm
Summary: This study compared the diagnostic accuracy of a new balanced hybrid nutrient density score (bHNDS) to Nutri-Score and Health Star Rating (HSR) front-of-pack systems using ROC curve analyses. The results showed high agreement between bHNDS and the two labeling systems.
FRONTIERS IN NUTRITION
(2022)
Article
Agronomy
Yongxin Li, Ce Zheng, Chao Wang, John B. Golding, Lei Ru
Summary: This study investigated the molecular mechanisms of internal browning in apples during storage under high CO2 controlled atmosphere. It was found that the 'Golden Delicious' apple cultivar exhibited higher CO2 tolerance compared to the 'Han Fu' cultivar, which was more susceptible to internal browning. Further elucidation of these mechanisms could potentially optimize apple cultivar breeding.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2022)
Article
Computer Science, Software Engineering
Shun Liu, Junjie Yang, Xianxian Zeng, Haiying Song, Jian Cen, Weichao Xu
Summary: Receiver Operating Characteristic (ROC) analysis is a commonly used tool in science and engineering for two-class problems. It characterizes the performance of binary statistical models using the scalar area under the ROC curve (AUC). However, tasks with more than two categories are frequently encountered, and the extension of ROC curve and AUC, namely hyper ROC surface and hyper-volume under the surface (HVUS), has attracted extensive interest. This study develops a python-based package and software tool as an alternative for multi-class ROC analysis.
Article
Mathematics
Hyunsuk Han
Summary: This study proposed the concept of using ROC curves to evaluate classifier performance and demonstrated its application in educational assessment. The results showed that ROC curves provide a comprehensive evaluation of classification quality and address issues in accuracy and consistency indices.
Article
Computer Science, Interdisciplinary Applications
Maria Xose Rodriguez-Alvarez, Vanda Inacio
Summary: This package introduces methods for estimating various types of ROC curves and obtaining summary measures of discriminatory accuracy. It also provides tools for calculating optimal threshold values based on ROC and assessing model fit using Bayesian methods.
Article
Geochemistry & Geophysics
Chein- Chang
Summary: ROC analysis is widely used to evaluate signal detection performance. This study introduces a 3D ROC curve for assessing detector effectiveness and target detectability and background suppressibility. By including a third independent variable, tau, new quantitative measures are designed to better evaluate detection performance.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2021)
Article
Mathematical & Computational Biology
Leonidas E. Bantis, John Tsimikas, Gregory R. Chambers, Michela Capello, Samir Hanash, Ziding Feng
Summary: During the early stage of biomarker discovery, high throughput technologies allow for input of thousands of biomarkers to discriminate between healthy and diseased subjects. Proper ranking of biomarkers is essential, with measures such as AUC being commonly considered. This study proposes using the length of a smooth ROC curve as a measure for biomarker ranking, which is not subject to directionality.
STATISTICS IN MEDICINE
(2021)
Article
Mathematical & Computational Biology
Susana Diaz-Coto, Norberto Octavio Corral-Blanco, Pablo Martinez-Camblor
Summary: The ROC curve is a statistical tool used for studying classification accuracy, and a two-stage estimator proposed in this study can adapt well to different situations in diagnostic and prognostic problems. The method performs well in both large and finite samples, fitting non-standard situations effectively.
INTERNATIONAL JOURNAL OF BIOSTATISTICS
(2021)
Article
Mathematical & Computational Biology
Xin Huang, Lu Tian, Yan Sun, Saptarshi Chatterjee, Viswanath Devanarayan
Summary: Development of marker signatures to predict treatment benefits for a new therapeutic is crucial for advancing drug discovery and precision medicine. This article focuses on developing an algorithm to search for the optimal linear combination of markers, maximizing the area between the receiver operating characteristic curves of the new therapeutic and control groups. The algorithm is further generalized to maximize the difference of Harrel's C-index when the outcome of interest is time-to-event.
STATISTICS IN MEDICINE
(2022)
Article
Mathematics, Applied
Alexej Gossmann, Aria Pezeshk, Yu-Ping Wang, Berkman Sahiner
Summary: The performance evaluation of constantly evolving machine learning algorithms, especially in high-risk fields such as medicine, faces new challenges. Reusing the same test dataset can lead to overfitting and overly optimistic conclusions about algorithm performance. A modified holdout mechanism shows potential in reducing overfitting issues.
SIAM JOURNAL ON MATHEMATICS OF DATA SCIENCE
(2021)
Article
Computer Science, Artificial Intelligence
Tilmann Gneiting, Eva-Maria Walz
Summary: ROC curves are powerful tools for assessing predictive abilities, but are limited to binary outcomes. The introduction of ROC movies and universal ROC curves extends this to linearly ordered outcomes, with an associated coefficient of predictive ability (CPA) that has appealing interpretations.
Article
Plant Sciences
Konni Biegert, Daniel Stoeckeler, Roy J. McCormick, Peter Braun
Summary: The study utilized optical sensor data to analyze key indicators in apple production, combining statistical analysis with horticultural knowledge to provide guidelines for further applications. It showed that SSC content in apples can be accurately predicted through spectral data using PLSR models. Comparison between non-destructive SSC measurements in the orchard and standard destructive lab tests at harvest revealed mean differences of less than 0.5%.
Article
Agriculture, Multidisciplinary
Pavel Osinenko, Konni Biegert, Roy J. McCormick, Thomas Goehrt, Grigory Devadze, Josef Streif, Stefan Streif
Summary: Physiological storage disorders impact a variety of commercially important pomefruit, leading to fruit losses and resource wastage. The disorders are influenced by growing environment and orchard management, with fruit from similar management and storage conditions showing varying incidence and severity of disorders. Predicting disorder risk accurately is crucial for fruit industries to optimize production processes, harvest dates, and storage practices globally.
COMPUTERS AND ELECTRONICS IN AGRICULTURE
(2021)
Article
Biochemistry & Molecular Biology
Stefan A. Lohner, Konni Biegert, Ansgar Hohmann, Roy McCormick, Alwin Kienle
Summary: Apple skin contains different types and concentrations of pigments that change dynamically during fruit maturation. Chlorophylls and carotenoids are primarily involved in photosynthesis, while anthocyanin vacuolar inclusions (AVIs) accumulate for light protection in red-skinned cultivars. The influence of grana and AVIs on light scattering and absorption was theoretically investigated, and experimental measurements confirmed the selective scattering effect.
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
(2022)
Article
Agronomy
Stefan A. Lohner, Konni Biegert, Steffen Nothelfer, Ansgar Hohmann, Roy McCormick, Alwin Kienle
Summary: Mie's theory was applied to develop a theoretical model describing light propagation in apple tissue based on microstructural properties. The model predicted a decrease of around 30% in the effective scattering coefficient during apple maturation, as well as an increase of up to 35% in the lateral change of the coefficient within a ripe apple. The model suggested that at least 70% of the total scattering coefficient is attributable to intercellular space, which plays a dominant role in temporal and lateral changes in scattering.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2021)
Proceedings Paper
Agricultural Engineering
R. Wang, H. Xuan, R. McCormick, J. Streif
XXVIII INTERNATIONAL HORTICULTURAL CONGRESS ON SCIENCE AND HORTICULTURE FOR PEOPLE (IHC2010): INTERNATIONAL SYMPOSIUM ON POSTHARVEST TECHNOLOGY IN THE GLOBAL MARKET
(2012)
Article
Agronomy
Zeyang Bao, Qihang Zhou, Yan Yu, Wei Chen, Zhenfeng Yang, Shifeng Cao, Liyu Shi
Summary: Exogenous melatonin treatment can alleviate the chilling-induced browning in cold-stored peaches by upregulating gene expression and affecting DNA methylation levels to increase phenolic accumulation.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Guolong Li, Zhishu Tang, Zhongxing Song, Xinbo Shi, Changle Liu, Qiang Chen, Hongbo Liu
Summary: This study investigated the accumulation of flavonoids in Chinese sour jujube fruits from five different harvest times using a combined metabolomics and transcriptomics approach. A total of 1539 differentially accumulated metabolites (DAMs) and 11592 differentially expressed genes (DEGs) were identified. The biosynthetic pathways for flavonoids, flavones, and flavanols were significantly enriched. A regulatory network for flavonoids biosynthesis was built and key genes related to flavonoid biosynthesis were identified.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Xuejiao Zhang, Xiaoyuan Zheng, Ruirui Yang, Qihui Wang, Lu Bai, Di Gong, Ye Han, Dov Prusky, Yang Bi
Summary: UV-C radiation promotes flavonoid synthesis in potato tuber wounds during early healing by upregulating the expression and activities of key enzymes and transcription factors involved in the flavonoid synthesis pathway, as well as increasing ABA levels and signaling.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Jiaqi Xiao, Yunyun Xie, Xiangjin Kong, Kuan Peng, Hong Zhu, Yueming Jiang, Hongxia Qu
Summary: The study reveals the positive role of Ca2+ ATPase in litchi energy metabolism and senescence. Higher expression of LcACAs is associated with better storability in litchi cultivars. Additionally, LcACA2 is identified as a target of LcmiR482e and ATP application can downregulate the expression of LcmiR482e, contributing to delayed senescence in litchi.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Asunta Mukami, Bicko Steve Juma, Cecilia Mweu, Richard Oduor, Wilton Mbinda
Summary: This study employed the CRISPR-Cas9 system to mutate genes in cassava, resulting in an extended shelf life of cassava roots and improved yield stability and farmers' income.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Paulo Sergio Gularte, Samara Martins Zanella, Cristiano Andre Steffens, Marceli Buss, Janaiana Catarina da Silva, Willian Coser, Aquidauana Miqueloto, Cassandro Vidal Talamini do Amarante
Summary: This study evaluated the impact of nitric oxide application on fruit quality and anaerobic metabolism products. The results showed that nitric oxide at appropriate concentrations can reduce respiration and ethylene evolution rates, preserve firmness, and reduce metabolite production and decay incidence.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Yiting Li, Sicong You, Shasha Wu, Mengyao Wang, Jin Song, Weijie Lan, Kang Tu, Leiqing Pan
Summary: This study aimed to compare the discrimination ability and detection limit of visible and short-wave near-infrared hyperspectral imaging features and spectral information on early implicit bruised pears. Physical characteristics were more sensitive than chemical parameters for bruised pears during postharvest storage. The changes in spectral variations at specific wavelengths could explain the bruising changes in pears. Discrimination models based on selected spectral variables could effectively identify bruised pear areas, and the combination of imaging features and spectral variables achieved higher discrimination rates.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Yu Du, Mengyue Wang, Mengting Tong, Dengyun Wu, Jianzhou Chu, Xiaoqin Yao
Summary: This study investigated the effects of sucrose, brassinolide (BR), and their combination on the storage quality of kale sprouts. The results showed that the combined treatment improved the growth and development of sprouts, reduced oxidative stress, and inhibited nutrient loss. Furthermore, the combination treatment maintained the antioxidant capacity and nutrient content of kale sprouts.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Zhiwen Hu, Jing Wei, Weimin Zhang, Long Wu, Di Gong, Yue Xiang, Jialiang Liu, Zhengke Zhang
Summary: In this study, the researchers investigated the effect of melatonin (Mel) on the phytotoxicity and residues of the fungicide prochloraz (Pcz) in mango fruit during storage. The results showed that pretreatment with Mel reduced Pcz residues and alleviated phytotoxicity in the fruit. Mel also suppressed Pcz-induced oxidative stress and enhanced the detoxification capacity of the fruit.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Bin Duan, Okwong Oketch Reymick, Zhaoguo Liu, Yun Zhou, Xin Wang, Zhao Feng, Nengguo Tao
Summary: The monoterpene citral can enhance disease resistance and reduce fruit decay in postharvest citrus fruit. It increases the activity of certain enzymes and the content of specific compounds, as well as triggers the accumulation of plant hormones and metabolites. Gene expression analysis reveals that citral upregulates genes involved in the jasmonic acid pathway and phenylpropanoid biosynthesis.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Meiqi Li, Xinhua Zhang, Jiaoqi Li, Maratab Ali, Yuting Wang, Xiuling Liu, Fujun Li, Xiaoan Li
Summary: This research aimed to investigate the potential action mechanism of gamma-aminobutyric acid (GABA) in controlling Botrytis cinerea (B. cinerea) in tomato fruit. The findings showed that GABA treatment effectively reduced the disease incidence and lesion diameter of tomato fruit caused by B. cinerea. GABA triggered defense responses and up-regulated the expression of pathogenesis-related genes, while also inhibiting the expression of ethylene synthesis genes.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Heeduk Oh, Marti Pottorff, Lara Giongo, Charles M. Mainland, Massimo Iorizzo, Penelope Perkins-Veazie
Summary: This study evaluated a large set of blueberry cultivars to understand the relationship between mechanical texture and appearance characteristics at harvest and after storage, and tested multiple statistical models to predict shelf-life. The results showed that fruit characteristics measured at harvest or two weeks post-harvest can predict weight loss, texture change, and fruit wrinkling. These findings provide empirical data that blueberry breeders can use to select cultivars with extended shelf-life.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Haitao Yu, Liuli Song, Jingjing Han, Xiaoyu Yu, Yuzhen Wu, Zhifang Yu
Summary: This study found that H2S treatment can delay the senescence process of postharvest pakchoi by regulating antioxidant system, endogenous H2S and NO metabolism. H2S increased the activities of antioxidant enzymes by up-regulating the expression of enzyme genes, reducing the accumulation of harmful substances. Furthermore, H2S increased the content of cysteine and nitrate in pakchoi by regulating the expression of related genes and enzyme activities, thus slowing down the senescence of pakchoi.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Jasna Mastilovic, Zarko Kevresan, Dragan Kukolj, Renata Kovac, Dragana Ubiparip Samek, Stevan Stankovski, Gordana Ostojic, Marina Deric
Summary: This study analyzes the patent portfolio and trends of sensors in postharvest of fresh produce, providing insights into the development of sensing technologies in this area. China is the leading country in patent applications, and the patent themes include produce sorting and packaging, produce storage, and the development and application of sensors. The findings highlight the significant impact of these technologies on postharvest processes, particularly in quality and safety monitoring. Moreover, they are expected to facilitate the integration of artificial intelligence into postharvest processes, enhancing the coherence and efficiency of supply chains.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Gal Nomberg, Gulab Chand Arya, Ekaterina Manasherova, Ofir Marinov, Oded Yarden, Hagai Cohen
Summary: Certain fleshy fruit species form a polyphenolic suberized peridermal skin to seal wounded skin and prevent invasion by pathogenic fungi.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
