18 papers · ranked by Valyu relevance
Yaakov HaCohen-Kerner, Daniel Miller, Yair Yigal, Weinan Zhang
Text classification (TC) is the task of automatically assigning documents to a fixed number of categories. TC is an important component in many text applications. Many of these applications perform preprocessing. There are different types of text preprocessing, e.g., conversion of uppercase letters into lowercase…
Hanna Hörhammer, Chang Dou, Rick Gustafson, Azra Suko + 1 more
Background Whole-tree chips will be a likely feedstock for future biorefineries because of their low cost. Non-structural components (NSC), however, represent a significant part of whole-tree chips. The NSC can account for more than 10% of whole-tree poplar mass when the trees are grown in short rotation cycles. The…
Yanfan Zhu, Marilyn M. Lionts, Ezekiel J. Haugen, Alec B. Walter + 10 more
Raman spectroscopy offers a uniquely rich window into molecular structure and composition, making it a powerful tool across fields ranging from materials science to biology. However, the reproducibility of Raman data analysis remains a fundamental bottleneck. In practice, transforming raw spectra into meaningful…
Lea Waller, Susanne Erk, Elena Pozzi, Yara J. Toenders + 7 more
The reproducibility crisis in neuroimaging has led to an increased demand for standardized data processing workflows. Within the ENIGMA consortium, we developed HALFpipe (Harmonized Analysis of Functional MRI pipeline), an open-source, containerized, user-friendly tool that facilitates reproducible analysis of…
Alexander Brown, Saurabh Garg, James Montgomery, Richard Mankin
In this work, we examine the problem of efficiently preprocessing and denoising high volume environmental acoustic data, which is a necessary step in many bird monitoring tasks. Preprocessing is typically made up of multiple steps which are considered separately from each other. These are often resource intensive…
Mohamed Osman Hegazi, Yasser Al-Dossari, Abdullah Al-Yahy, Abdulaziz Al-Sumari + 1 more
'Abdulaziz Al-Sumari' 'Anwer Hilal'] Currently, social media plays an important role in daily life and routine. Millions of people use social media for different purposes. Large amounts of data flow through online networks every second, and these data contain valuable information that can be extracted if the data are…
Oswaldo Cadenas, Graham M. Megson, Krishna Garikipati
This paper presents a method to reduce a set of n 2D points to a smaller set of s 2D points with the property that the convex hull on the smaller set is the same as the convex hull of the original bigger set. The paper shows, experimentally, that such reduction accelerates computations; the time it takes to reduce from…
Jean-Michel Roger, Alexandre Mallet, Federico Marini, Jaan Laane
Even though NIR spectroscopy is based on the Beer-Lambert law, which clearly relates the concentration of the absorbing elements with the absorbance, the measured spectra are subject to spurious signals, such as additive and multiplicative effects. The use of NIR spectra, therefore, requires a preprocessing step. This…
Alix Lamouroux, Julie Coloigner, Pierre Maurel, Nicolas Farrugia + 1 more
'Giulia Lioi'] Title: Abstract Functional magnetic resonance imaging (fMRI) is essential for studying brain function and connectivity. Resting-state fMRI, which captures spontaneous brain activity without task requirements, is particularly suited for individuals with post-stroke impairments. However, the inherent noise…
Keumsun Park, Minah Chae, Jae Hyuk Cho
Even though computer vision has been developing, edge detection is still one of the challenges in that field. It comes from the limitations of the complementary metal oxide semiconductor (CMOS) Image sensor used to collect the image data, and then image signal processor (ISP) is additionally required to understand the…
Baogui Qi, Hao Shi, Yin Zhuang, He Chen + 1 more
With the development of remote-sensing technology, optical remote-sensing imagery processing has played an important role in many application fields, such as geological exploration and natural disaster prevention. However, relative radiation correction and geometric correction are key steps in preprocessing because raw…
Zongli Xu, Liang Niu, Jack A. Taylor
Background Illumina DNA methylation arrays are high-throughput platforms for cost-effective genome-wide profiling of individual CpGs. Experimental and technical factors introduce appreciable measurement variation, some of which can be mitigated by careful “preprocessing” of raw data. Methods Here we describe the ENmix…
Yi Deng, Chengyue Xing, Ling Cai
At present, data mining technology is continuously researched in science and application. With the rapid development of remote sensing satellite industry, especially the launch of remote sensing satellites with high-resolution sensors, the amount of information obtained from remote sensing images has increased…
Nathan W. Churchill, Grigori Yourganov, Anita Oder, Fred Tam + 3 more
'Simon J. Graham' 'Stephen C. Strother' 'Xi-Nian Zuo'] A variety of preprocessing techniques are available to correct subject-dependant artifacts in fMRI, caused by head motion and physiological noise. Although it has been established that the chosen preprocessing steps (or “pipeline”) may significantly affect fMRI…
Yongping Jiang, Bowen Tai, Yufan Yang, Xinyue Zhang + 2 more
Aflatoxin B1 (AFB1) contamination in maize poses serious risks to food and feed safety; however, conventional laboratory-based assays are often constrained by time and throughput for large-scale screening. This study proposes a hyperspectral imaging (HSI) workflow for rapid, non-destructive prediction of AFB1. A total…
Tijmen S. Bos, Wouter C. Knol, Stef R.A. Molenaar, Leon E. Niezen + 3 more
'Peter J. Schoenmakers' 'Govert W. Somsen' 'Bob W.J. Pirok'] Title: Abstract The proliferation of increasingly more sophisticated analytical separation systems, often incorporating increasingly more powerful detection techniques, such as high-resolution mass spectrometry, causes an urgent need for highly efficient…
Christian Tischer, Ashis Ravindran, Sabine Reither, Nicolas Chiaruttini + 3 more
Visualisation and processing of an image dataset conventionally comprises loading this dataset from a storage device such as a hard disk into a computer's RAM from where it is accessed and processed by the computer's CPU. With the increasing size of image data in biological research this mode of operation is becoming…
Claudia F. Galinha, João G. Crespo, Elena Tocci
Membrane processes are complex systems, often comprising several physicochemical phenomena, as well as biological reactions, depending on the systems studied. Therefore, process modelling is a requirement to simulate (and predict) process and membrane performance, to infer about optimal process conditions, to assess…