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Categories: Engineering: Biometric, Mathematics: Statistics
Published Machine learning model could better measure baseball players' performance
(via sciencedaily.com) Researchers have developed a machine learning model that could better measure baseball players' and teams' short- and long-term performance, compared to existing statistical analysis methods for the sport. Drawing on recent advances in natural language processing and computer vision, their approach would completely change, and could enhance, the way the state of a game and a player's impact on the game is measured.
Published Study shows gaps in how STEM organizations collect demographic information
(via sciencedaily.com) Professional organizations in science, technology, engineering and mathematics (STEM) fields could more effectively collect data on underrepresented groups in their fields, according to a new survey. With more robust information, STEM organizations could better target efforts to recruit and retain a more diverse membership.
Published Forensic scientists improve touch DNA collection methods
(via sciencedaily.com) Skin cells and their DNA varies between individuals, but new data shows that some groups of people have higher variability in their cell deposits. The South Australian forensic science researchers are building a suite of new insights into crime scene investigation -- including the difference between high, intermediate and low skin 'shedders' that will help understanding of trace or 'touch DNA'.
Published Lottery luck in the light of physics: Researchers present theory on the dynamics of many-particle systems
(via sciencedaily.com) Power functional theory is a new approach that makes it possible to describe precisely the dynamics of many-particle systems over time.
Published Speaking from the heart: Could your voice reveal your heart health?
(via sciencedaily.com) An artificial intelligence (AI)-based computer algorithm accurately predicted a person's likelihood of suffering heart problems related to clogged arteries based on voice recordings alone.
Published Turning any camera into a polarization camera
(via sciencedaily.com) Researchers have developed a metasurface attachment that can turn just about any camera or imaging system, even off-the-shelf systems, into polarization cameras. The attachment uses a metasurface of subwavelength nanopillars to direct light based on its polarization and compiles an image that captures polarization at every pixel.
Published Toward a quantum computer that calculates molecular energy
(via sciencedaily.com) Researchers have developed an algorithm that uses the most quantum bits to date to calculate ground state energy, the lowest-energy state in a quantum mechanical system. The discovery could make it easier to design new materials.
Published A first step towards quantum algorithms: Minimizing the guesswork of a quantum ensemble
(via sciencedaily.com) A quantum ensemble -- a set of quantum states with their corresponding probabilities -- is essential to the encoding of classical information for transmission over quantum channels. But receivers must be able to 'guess' the transmitted quantum state, incurring a cost called 'guesswork.' Recently, researchers have derived analytical solutions of the guesswork problem for when the ensemble is subject to a finite set of conditions. The results constitute a first step towards future algorithms for quantum software.
Published New insight into machine-learning error estimation
(via sciencedaily.com) Scientists are evaluating machine-learning models using transfer learning principles.
Published New data analysis tool uncovers important COVID-19 clues
(via sciencedaily.com) A new data analysis tool has revealed the specific immune cell types associated with increased risk of death from COVID-19.
Published Using artificial intelligence to find anomalies hiding in massive datasets
(via sciencedaily.com) Researchers have developed a computationally efficient method that could be used to identify anomalies in the U.S. power grid in real time. The novel technique augments a special type of machine-learning model with a powerful graph structure, and does not require any labeled data to train.
Published Navigation tools could be pointing drivers to the shortest route — but not the safest
(via sciencedaily.com) Time for a road trip. You punch the destination into your GPS and choose the suggested route. But is this shortest route the safest? Not necessarily, according to new findings.
Published Researchers use supercomputers for largest-ever turbulence simulations of its kind
(via sciencedaily.com) Despite being among the most researched topics on supercomputers, a fundamental understanding of the effects of turbulent motion on fluid flows still eludes scientists. A new approach aims to change that.
Published New computer vision system designed to analyse cells in microscopy videos
(via sciencedaily.com) Researchers have developed a system based on computer vision techniques that allows automatic analysis of biomedical videos captured by microscopy in order to characterize and describe the behavior of the cells that appear in the images.
Published Where mathematics and a social perspective meet data
(via sciencedaily.com) Community structure, including relationships between and within groups, is foundational to our understanding of the world around us.
Published Capturing hidden data for asymptomatic COVID-19 cases provides a better pandemic picture
(via sciencedaily.com) Asymptomatic COVID-19 cases are the bane of computer modelers' existences -- they throw off the modeling data to an unknown degree. A new approach explores using historic epidemic data from eight different countries to estimate the transmission rate and fraction of under-reported cases.
Published New computational tool predicts cell fates and genetic perturbations
(via sciencedaily.com) Researchers have built a machine learning framework that can define the mathematical equations describing a cell's trajectory from one state to another, such as its development from a stem cell into one of several different types of mature cell. The framework, called dynamo, can also be used to figure out the underlying mechanisms -- the specific cocktail of gene activity -- driving changes in the cell.
Published Enhanced statistical models will aid conservation of killer whales and other species
(via sciencedaily.com) Retrieving an accurate picture of what a tagged animal does as it journeys through its environment requires statistical analysis, especially when it comes to animal movement, and the methods statisticians use are always evolving to make full use of the large and complex data sets that are available. A recent study by researchers at the Institute for the Oceans and Fisheries (IOF) and the UBC department of statistics has taken us a step closer to understanding the behaviours of northern resident killer whales by improving statistical tools useful for identifying animal behaviours that can't be observed directly.
Published Real-world study shows the potential of gait authentication to enhance smartphone security
(via sciencedaily.com) A study showed that -- within an appropriate framework -- gait recognition could be a viable technique for protecting individuals and their data from potential crime.
Published How statistics can aid in the fight against misinformation
(via sciencedaily.com) Mathematicians created a statistical model that can be used to detect misinformation in social posts.