11 papers · ranked by Valyu relevance
Zihan Song, Hye-Jin Park, Ngeemasara Thapa, Ja-Gyeong Yang + 9 more
Current step-count estimation techniques use either an accelerometer or gyroscope sensors to calculate the number of steps. However, because of smartphones unfixed placement and direction, their accuracy is insufficient. It is necessary to consider the impact of the carrying position on the accuracy of the pedometer…
Jing Wang, Ulrich Bork, Sharareh Rostam Niakan Kalhori, George Boateng + 5 more
'George Boateng' 'Curtis L Petersen' 'David Kotz' 'Karen L Fortuna' 'Rebecca Masutani' 'John A Batsis'] Background Older adults who engage in physical activity can reduce their risk of mobility impairment and disability. Short amounts of walking can improve quality of life, physical function, and cardiovascular health.…
Valeria Filippou, Michael R. Backhouse, Anthony C. Redmond, David C. Wong + 5 more
'David C. Wong' 'Ioannis Yiannis Kompatsiaris' 'Stefanos Vrochidis' 'Georgios Meditskos' 'Periklis Chatzimisios' 'Athina Tsanousa'] This study aimed to develop and evaluate a new step-count algorithm, StepMatchDTWBA, for the accurate measurement of physical activity using wearable devices in both healthy and…
C. Ladha, Z. Belshaw, J. O’Sullivan, L. Asher
Background Accelerometer-based technologies could be useful in providing objective measures of canine ambulation, but most are either not tailored to the idiosyncrasies of canine gait, or, use un-validated or closed source approaches. The aim of this paper was to validate algorithms which could be applied to…
Guoliang Chen, Xiaolin Meng, Yunjia Wang, Yanzhe Zhang + 3 more
'Huachao Yang' 'Kourosh Khoshelham'] Because of the high calculation cost and poor performance of a traditional planar map when dealing with complicated indoor geographic information, a WiFi fingerprint indoor positioning system cannot be widely employed on a smartphone platform. By making full use of the hardware…
Buke Ao, Yongcai Wang, Hongnan Liu, Deying Li + 2 more
Walk detection (WD) and step counting (SC) have become popular applications in the recent emergence of wearable devices. These devices monitor user states and process data from MEMS-based accelerometers and optional gyroscope sensors. Various algorithms have been proposed for WD and SC, which are generally sensitive to…
Authors not listed
Atomistic simulations provide essential mechanistic insights into chemical processes, yet many important phenomena in chemistry and materials science occur on timescales that are inaccessible to molecular dynamics. Existing computational approaches force a choice between atomic resolution on relatively short timescales…
Authors not listed
Stochastic Simulation Algorithms (SSA) are a cornerstone in simulating Free Radical Polymerization (FRP) due to their accuracy and reliability. However, computational inefficiency remains a challenge for large-scale and complex polymerization systems. This work introduces a novel stochastic simulation algorithm…
Oskar Weser, Kai Guther, Khaldoon Ghanem, Giovanni Li Manni
An algorithm to perform stochastic generalized active space calculations, Stochastic-GAS, is presented, that uses the Slater determinant based FCIQMC algorithm as configuration interaction eigensolver. Stochastic-GAS allows the construction and stochastic optimization of preselected truncated configuration interaction…
Keisuke Ozawa
Statistically weighted principal component analysis (wPCA) is widely used to reduce the noise of scanning transmission electron microscopy-energy-dispersive X-ray (STEM-EDX) spectroscopy data. It is beneficial to retain the spatial resolution of observation in each step of the analysis, but the direct application of…
Authors not listed
Building on prior mathematical formulations of the periodic law, this paper demonstrates that the algebraic formula S(k) = 2 * (floor(k/2) + 1)^2 accurately predicts the period lengths (2, 8, 8, 18, 18, 32, ...) of the periodic table. This pattern is not a numerical coincidence but a direct consequence of the…