27 results match your criteria: "School of Electronics and Computer Engineering[Affiliation]"
J Microbiol Biotechnol
March 2024
Department of Oral Microbiology, School of Dentistry, Chonnam National University, Gwangju 61186, Republic of Korea.
Sensors (Basel)
May 2023
Department of Electrical Engineering, Chonnam National University, Gwangju 61186, Republic of Korea.
One of the most severe types of cancer caused by the uncontrollable proliferation of brain cells inside the skull is brain tumors. Hence, a fast and accurate tumor detection method is critical for the patient's health. Many automated artificial intelligence (AI) methods have recently been developed to diagnose tumors.
View Article and Find Full Text PDFBiomed Opt Express
December 2021
Tsinghua Shenzhen International Graduate School & Tsinghua-Berkeley Shenzhen Institute (TBSI), Tsinghua University, Shenzhen 518055, China.
We propose a sucrose concentration sensor by utilizing a fiber Sagnac interferometer with no-core fiber (SI-NCF) based on the Vernier effect. The Vernier effect is realized by introducing a single Sagnac interferometer (SI) with a similar free spectral range of SI-NCF. When the NCF is exposed to the external sucrose solution, the cladding state of NCF is changed, which induces the wavelength shift of the SI-NCF.
View Article and Find Full Text PDFInt J Environ Res Public Health
July 2021
School of Electronics and Computer Engineering, Ngee Ann Polytechnic, Singapore 599489, Singapore.
This paper presents a scientific foundation for automated stroke severity classification. We have constructed and assessed a system which extracts diagnostically relevant information from Magnetic Resonance Imaging (MRI) images. The design was based on 267 images that show the brain from individual subjects after stroke.
View Article and Find Full Text PDFLupus Sci Med
April 2021
Computational Bio-Medicine Laboratory, Institute of Computer Science, Foundation for Research and Technology - Hellas, Heraklion, Crete, Greece
Objective: To examine the hypothesis that perfusion and functional connectivity disturbances in brain areas implicated in emotional processing are linked to emotion-related symptoms in neuropsychiatric SLE (NPSLE).
Methods: Resting-state fMRI (rs-fMRI) was performed and anxiety and/or depression symptoms were assessed in 32 patients with NPSLE and 18 healthy controls (HC). Whole-brain time-shift analysis (TSA) maps, voxel-wise global connectivity (assessed through intrinsic connectivity contrast (ICC)) and within-network connectivity were estimated and submitted to one-sample t-tests.
Nutrients
April 2021
School of Electronics and Computer Engineering, Chonnam National University, Gwangju 61186, Korea.
While several studies have explored nutrient intake and dietary habits associated with depression, few studies have reflected recent trends and demographic factors. Therefore, we examined how nutrient intake and eating habits are associated with depression, according to gender and age. We performed simple and multiple regressions using nationally representative samples of 10,106 subjects from the Korea National Health and Nutrition Examination Survey.
View Article and Find Full Text PDFFront Pharmacol
November 2020
Bio-Synergy Research Center, Daejeon, South Korea.
Medicinal plants and their extracts have been used as important sources for drug discovery. In particular, plant-derived natural compounds, including phytochemicals, antioxidants, vitamins, and minerals, are gaining attention as they promote health and prevent disease. Although several methods have been developed to confirm the biological activities of natural compounds, there is still considerable room to reduce time and cost.
View Article and Find Full Text PDFSensors (Basel)
December 2020
School of Computer Science and Engineering, Soongsil University, Seoul 06978, Korea.
Bearing elements are vital in induction motors; therefore, early fault detection of rolling-element bearings is essential in machine health monitoring. With the advantage of fault feature representation techniques of time-frequency domain for nonstationary signals and the advent of convolutional neural networks (CNNs), bearing fault diagnosis has achieved high accuracy, even at variable rotational speeds. However, the required computation and memory resources of CNN-based fault diagnosis methods render it difficult to be compatible with embedded systems, which are essential in real industrial platforms because of their portability and low costs.
View Article and Find Full Text PDFPLoS One
October 2020
Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea.
A well-defined protocol for a clinical trial guarantees a successful outcome report. When designing the protocol, most researchers refer to electronic databases and extract protocol elements using a keyword search. However, state-of-the-art database systems only offer text-based searches for user-entered keywords.
View Article and Find Full Text PDFAppl Spectrosc
December 2019
Laboratory of Semiconductor Device Research, School of Electronics and Computer Engineering, Chonnam National University, Gwangju, Korea.
We present the accurate terahertz spectra of between imitation and cultured pearls using continuous-wave terahertz (CW-THz) spectroscopy. Using Fourier transform infrared (FT-IR) spectroscopy and optical coherence tomography (OCT) measurements, cultured pearls can be distinguished from imitation pearls by observing distinct absorption peaks and discriminative boundaries. The THz absorption spectra up to 0.
View Article and Find Full Text PDFNeural Netw
October 2019
School of Electronics and Computer Engineering, Peking University Shenzhen Graduate School, Shenzhen, China. Electronic address:
Text classification has been attracting increasing attention with the growth of textual data created on the Internet. Great progress has been made by deep neural networks for domains where a large amount of labeled training data is available. However, providing sufficient data is time-consuming and labor-intensive, establishing substantial obstacles for expanding the learned models to new domains or new tasks.
View Article and Find Full Text PDFBMC Bioinformatics
June 2019
SIAT, Chinese Academy of Sciences, Shenzhen, 518055, People's Republic of China.
Background: Ontology has attracted substantial attention from both academia and industry. Handling uncertainty reasoning is important in researching ontology. For example, when a patient is suffering from cirrhosis, the appearance of abdominal vein varices is four times more likely than the presence of bitter taste.
View Article and Find Full Text PDFJ Cheminform
March 2019
The Shenzhen Key Lab for Information Centric Networking and Blockchain Techologies(ICNLab), School of Electronics and Computer Engineering, Peking University Shenzhen Graduate School, 518055, Shenzhen, People's Republic of China.
Efficient representations of drugs provide important support for healthcare analytics, such as drug-drug interaction (DDI) prediction and drug-drug similarity (DDS) computation. However, incomplete annotated data and drug feature sparseness create substantial barriers for drug representation learning, making it difficult to accurately identify new drug properties prior to public release. To alleviate these deficiencies, we propose KMR, a knowledge-oriented feature-driven method which can learn drug related knowledge with an accurate representation.
View Article and Find Full Text PDFJ Med Syst
March 2019
School of Electronics and Computer Engineering, Peking University (Shenzhen), 518055, Shenzhen, People's Republic of China.
Measuring drug-drug similarity is important but challenging. Significant progresses have been made in drugs whose labeled training data is sufficient and available. However, handling data skewness and incompleteness with domain-specific knowledge graph, is still a relatively new territory and an under-explored prospect.
View Article and Find Full Text PDFJ Biomed Inform
December 2018
ICNLAB, School of Electronics and Computer Engineering, Peking University Shenzhen Graduate School, 518055 Shenzhen, PR China. Electronic address:
The process of learning candidate causal relationships involving diseases and symptoms from electronic medical records (EMRs) is the first step towards learning models that perform diagnostic inference directly from real healthcare data. However, the existing diagnostic inference systems rely on knowledge bases such as ontology that are manually compiled through a labour-intensive process or automatically derived using simple pairwise statistics. We explore CBN, a Clinical Bayesian Network construction for medical ontology probabilistic inference, to learn high-quality Bayesian topology and complete ontology directly from EMRs.
View Article and Find Full Text PDFEntropy (Basel)
August 2018
Department of Electrical and Computer Engineering, Institute of New Media and Communications, Seoul National University, Seoul 08826, Korea.
In this paper, a new family of binary LRCs (BLRCs) with locality 2 and uneven availabilities for hot data is proposed, which has a high information symbol availability and low parity symbol availabilities for the local repair of distributed storage systems. The local repair of each information symbol for the proposed codes can be done not by accessing other information symbols but only by accessing parity symbols. The proposed BLRCs with k = 4 achieve the optimality on the information length for their given code length, minimum Hamming distance, locality, and availability in terms of the well-known theoretical upper bound.
View Article and Find Full Text PDFJ Biomed Semantics
August 2018
Shenzhen Key Lab for Information Centric Networking & Blockchain Technology (ICNLAB), School of Electronics and Computer Engineering, Peking University Shenzhen Graduate School, 518055, Shenzhen, People's Republic of China.
Background: Entropy has become increasingly popular in computer science and information theory because it can be used to measure the predictability and redundancy of knowledge bases, especially ontologies. However, current entropy applications that evaluate ontologies consider only single-point connectivity rather than path connectivity, and they assign equal weights to each entity and path.
Results: We propose an Entropy-Aware Path-Based (EAPB) metric for ontology quality by considering the path information between different vertices and textual information included in the path to calculate the connectivity path of the whole network and dynamic weights between different nodes.
Artif Intell Med
March 2018
School of Electronics and Computer Engineering, Peking University Shenzhen Graduate School, Shenzhen, China. Electronic address:
Background: The available antibiotic decision-making systems were developed from a physician's perspective. However, because infectious diseases are common, many patients desire access to knowledge via a search engine. Although the use of antibiotics should, in principle, be subject to a doctor's advice, many patients take them without authorization, and some people cannot easily or rapidly consult a doctor.
View Article and Find Full Text PDFACS Appl Mater Interfaces
August 2018
School of Electronics and Computer Engineering, Shenzhen Graduate School , Peking University, Shenzhen 518055 , China.
A room-temperature flexible amorphous indium-gallium-zinc oxide thin film transistor (a-IGZO TFT) technology is developed on plastic substrates, in which both the gate dielectric and passivation layers of the TFTs are formed by an anodic oxidation (anodization) technique. While the gate dielectric AlO is grown with a conventional anodization on an Al:Nd gate electrode, the channel passivation layer AlO is formed using a localized anodization technique. The anodized AlO passivation layer shows a superior passivation effect to that of PECVD SiO.
View Article and Find Full Text PDFSensors (Basel)
December 2017
Department of Electrical, Electronics and Computer Engineering, University of Ulsan, Ulsan 44610, Korea.
Bearing fault diagnosis is imperative for the maintenance, reliability, and durability of rotary machines. It can reduce economical losses by eliminating unexpected downtime in industry due to failure of rotary machines. Though widely investigated in the past couple of decades, continued advancement is still desirable to improve upon existing fault diagnosis techniques.
View Article and Find Full Text PDFSpringerplus
October 2016
School of Electronics and Computer Engineering, Ajou University, San 5, World cup-ro, Yeongtong-gu, Suwon, 16499 Korea.
This paper presents a novel motion compensated frame interpolation (MCFI) algorithm that includes texture-based wedgelet partitioning (TWP) and multiple prediction based search (MPS). TWP partitions a rectangular block into two wedge-shaped sub-blocks using the texture information, which makes a better approximation for an actual object region. Thus, detailed motions around the object boundaries can be more precisely represented than by existing MCFI algorithms.
View Article and Find Full Text PDFSensors (Basel)
January 2016
School of Electronics and Computer Engineering, Chonnam National University, 300 Youngbong-dong, Buk-gu, Gwangju 500-757, Korea.
This paper proposes an optical method which allows determination of the organic compound concentration in water by measurement of the UV (ultraviolet) absorption at a wavelength of 250 nm~300 nm. The UV absorbance was analyzed by means of a multiple linear regression model for estimation of the total organic carbon contents in water, which showed a close correlation with the UV absorbance, demonstrating a high adjusted coefficient of determination, 0.997.
View Article and Find Full Text PDFBiomed Mater Eng
July 2016
Division of Biomedical Engineering, Chonbuk National University, Jeonju, South Korea.
From a subject group of pes cavus, the purpose of this study was to evaluate the biomechanical characteristics of lower limbs, based on plantar foot pressure and electromyography (EMG) activities, by the effects on two kind of custom-made insoles. Ten individuals among thirty females with a clinical diagnosis of idiopathic pes cavus (mean age (SD): 22.3 (0.
View Article and Find Full Text PDFBiomed Mater Eng
July 2016
School of Electronics and Computer Engineering, Chonnam National University, 77 Yongbong ro, Buk-gu, Gwangju 500-757, Korea.
Snoring detection is important for diagnosing obstructive sleep apnea syndrome (OSAS) and other respiratory sleep disorders. In general, audio signal processing such as snoring sound analysis uses the frequency characteristics of the signal. Recently, a correlational filter Multilayer Perceptron neural network (f-MLP) has been proposed, which has the first hidden layer of correlational filter operations in frequency domain.
View Article and Find Full Text PDFJ Biomed Inform
August 2015
Peking University Shenzhen Graduate School - Institute of Big Data Technologies, School of Electronics and Computer Engineering (SECE), Shenzhen Key Lab for Cloud Computing Technology & Applications, PKU Shenzhen Graduate School, 518055 Shenzhen, PR China. Electronic address:
This research aims to depict the methodological steps and tools about the combined operation of case-based reasoning (CBR) and multi-agent system (MAS) to expose the ontological application in the field of clinical decision support. The multi-agent architecture works for the consideration of the whole cycle of clinical decision-making adaptable to many medical aspects such as the diagnosis, prognosis, treatment, therapeutic monitoring of gastric cancer. In the multi-agent architecture, the ontological agent type employs the domain knowledge to ease the extraction of similar clinical cases and provide treatment suggestions to patients and physicians.
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