Results 21 to 30 of about 1,618,796 (246)

Wideband Circularly Polarized Filtering Hybrid Antenna

Applied Sciences, 2022
In this paper, a wideband circularly polarized (CP) filtering hybrid antenna is presented. The liquid dielectric resonator (DR) is excited by a microstrip-coupled cross-slot to generate CP radiation. Four inverted L-shaped strips are loaded on the ground
Yahui Qian, Shumin Xie
doaj   +1 more source

H ? filtering for stochastic singular fuzzy systems with time-varying delay [PDF]

, 2014
This paper considers the H? filtering problem for stochastic singular fuzzy systems with timevarying delay. We assume that the state and measurement are corrupted by stochastic uncertain exogenous disturbance and that the system dynamic is modeled ...
Cai, Min, Yan, Xinggang, Zhao, Feng, Zhang, Qingling   +3 more
core   +1 more source

HYBRID APPROACH FOR DATA FILTERING AND MACHINE LEARNING INSIDE CONTENT MANAGEMENT SYSTEM

Сучасні інформаційні системи, 2023
The object of research is the processes of data filtering and machine learning in content management systems. The subject of research is developing a hybrid approach to data filtering based on a combination of supervised and unsupervised machine ...
Oleh Poliarush , Svitlana Krepych , Iryna Spivak   +2 more
doaj   +1 more source

Analysis of hybrid Nd:Yag laser-MAG arc welding processes. [PDF]

, 2011
In the hybrid laser-arc welding process, a laser beam and an electric arc are coupled in order to combine the advantages of both processes: high welding speed, low thermal load and high depth penetration thanks to the laser; less demanding on joint ...
F. Coste, E. Le Guen, P. Le Masson, COSTE, Frédéric, LE MASSON, Philippe, M. Carin, LE GUEN, Emilie, FABBRO, Rémy, CARIN, Muriel, R. Fabbro   +9 more
core   +1 more source

Optimization hybrid weighted switching filtering (OHWSF) using SVD and SVD++ for addressing data sparsity

IJAIN (International Journal of Advances in Intelligent Informatics)
Recommender systems are crucial for filtering vast amounts of digital content and providing personalized recommendations; however, their effectiveness is often hindered by data sparsity, where limited user-item interactions lead to reduced prediction ...
Malim Muhammad, Gunardi Gunardi, Danardono Danardono, Dedi Rosadi   +3 more
doaj   +1 more source

Web-Based Makeup Recommendation System Using Hybrid Filtering

Journal of Applied Informatics and Computing
The increasing use of makeup products in the modern era, driven by evolving beauty trends and e-commerce accessibility, presents challenges in selecting products suited to individual skin types and conditions. A recommendation system addresses this issue
Putu Mia Setya Utami, I Nyoman Prayana Trisna, Wayan Oger Vihikan   +2 more
doaj   +1 more source

An Improved Nonlinear Health Index CRRMS for the Remaining Useful Life Prediction of Rolling Bearings

Actuators
In this article, a novel prediction index is constructed, a hybrid filtering is proposed, and a remaining useful life (RUL) prediction framework is developed. In the proposed framework, different models are built for different operation states of rolling
Yongze Jin, Xubo Yang, Junqi Liu, Yanxi Yang, Xinhong Hei, Anqi Shangguan   +5 more
doaj   +1 more source

Hybrid Adaptive Cubature Kalman Filter with Unknown Variance of Measurement Noise

Sensors, 2018
This paper is concerned with the filtering problem caused by the inaccuracy variance of measurement noise in real nonlinear systems. A novel weighted fusion estimation method of multiple different variance estimators is presented to estimate the variance
Yuepeng Shi, Xianfeng Tang, Xiaoliang Feng, Dingjun Bian, Xizhao Zhou   +4 more
doaj   +1 more source

Survey of Continuous Queries over Spatial-Textual Data Streams

Jisuanji kexue yu tansuo, 2021
The continuous queries over spatial-textual data streams (CQST) are widely used in location-based services, which continuously monitor the results satisfying spatial and textual constraints over updated data streams.
YANG Rong, NIU Baoning
doaj   +1 more source

Adaptive filtering for noise reduction in photoplethysmography signals

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
This article presents an innovative hybrid filtering approach applied to photoplethysmography (PPG) signals, based on the Pulse-sensor, widely used in physiological monitoring devices.
Hicham Loumissi, Adil Barra, Najat Messaoudi, Othmane El Badlaoui, Bahloul Bensassi, Hicham Medromi   +5 more
doaj   +1 more source