Results 11 to 20 of about 71,984 (297)

Virtual flux vector reconstruction of a PWM rectifier [PDF]

open access: yes工程科学学报, 2016
The virtual flux space vector of a pulse width modulation (PWM) rectifier usually can be calculated by integrating the grid voltage vector. In practice, the pure integral part is replaced with a first-order low-pass filter (FOLP) to counteract the DC ...
CHEN Tie-zhu   +3 more
doaj   +4 more sources

Homogenized Virtual Support Vector Machines [PDF]

open access: yesDigital Image Computing: Techniques and Applications (DICTA'05), 2005
In many domains, reliable a priori knowledge exists that may be used to improve classifier performance. For example in handwritten digit recognition, such a priori knowledge may include classification invariance with respect to image translations and rotations. In this paper, we present a new generalisation of the Support Vector Machine (SVM) that aims
Christian J. Walder, Brian C. Lovell
core   +9 more sources

An Improved FCS-MPC Based on Virtual Vector Expansion and Sector Optimization for 2L-VSCs [PDF]

open access: yesIEEE Access, 2022
Conventional finite control set model predictive control (FCS-MPC) outputs one voltage vector per period by vector traversal algorithm, which leads to low control accuracy, unnecessary high computational burden and unfixed switching frequency.
Shaomin Yan   +4 more
doaj   +2 more sources

Designing a virtual exhibition using Scalable Vector Graphics [PDF]

open access: yesAslib Proceedings, 2004
Scalable Vector Graphics (SVG) is an XML‐based vector graphics standard developed by the World Wide Web Consortium. The National Archives of Singapore recently launched an online virtual exhibition, Colours in the Wind, which was developed using Macromedia Flash, the most widely used format for animated and interactive vector‐based Web content.
Goh, Dion Hoe-Lian, Wang, Julie Chih Ee
openaire   +4 more sources

Automated identification of insect vectors of Chagas disease in Brazil and Mexico: the Virtual Vector Lab. [PDF]

open access: yesPeerJ, 2017
Identification of arthropods important in disease transmission is a crucial, yet difficult, task that can demand considerable training and experience. An important case in point is that of the 150+ species of Triatominae, vectors of Trypanosoma cruzi , causative agent of Chagas disease across
Gurgel-Gonçalves R   +9 more
europepmc   +6 more sources

A Low Frequency Noise Source Localization and Identification Method Based on a Virtual Open Spherical Vector Microphone Array [PDF]

open access: yesApplied Sciences, 2023
Aiming at the problem of poor spatial resolution of low-frequency noise sources in a small-aperture spherical microphone array (SMA), this paper proposes a method for localizing and identifying low-frequency noise sources based on virtual-vector open SMA
Boquan Yang   +3 more
doaj   +2 more sources

Multi-Virtual-Vector Model Predictive Current Control for Dual Three-Phase PMSM [PDF]

open access: yesEnergies, 2021
This paper proposes a multi-virtual-vector model predictive control (MPC) for a dual three-phase permanent magnet synchronous machine (DTP-PMSM), which aims to regulate the currents in both fundamental and harmonic subspace.
Tianjiao Luan   +6 more
doaj   +2 more sources

General virtual sketching framework for vector line art [PDF]

open access: yesACM Transactions on Graphics, 2021
Vector line art plays an important role in graphic design, however, it is tedious to manually create. We introduce a general framework to produce line drawings from a wide variety of images, by learning a mapping from raster image space to vector image space. Our approach is based on a recurrent neural network that draws the lines one by one.
Ruomei Wang, Edgar Simo-Serra
exaly   +2 more sources

A Simplified Virtual Vector PWM Algorithm to Balance the Capacitor Voltages of Four-Level Diode-Clamped Converter

open access: yesIEEE Access, 2020
The voltage balancing problem of dc-link capacitors in multilevel diode-clamped converters limits their applications in industry under some operational conditions.
Muhammad Attique Qamar   +4 more
doaj   +3 more sources

Virtual examples for text classification with Support Vector Machines [PDF]

open access: yesProceedings of the 2003 conference on Empirical methods in natural language processing -, 2003
We explore how virtual examples (artificially created examples) improve performance of text classification with Support Vector Machines (SVMs). We propose techniques to create virtual examples for text classification based on the assumption that the category of a document is unchanged even if a small number of words are added or deleted.
Manabu Sassano
openaire   +4 more sources

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