Jong Yun Lee

Jong Yun Lee
Chungbuk National University · School of Software

BS, MS, PhD

About

86
Publications
26,455
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1,670
Citations
Citations since 2017
38 Research Items
1012 Citations
2017201820192020202120222023050100150200250
2017201820192020202120222023050100150200250
2017201820192020202120222023050100150200250
2017201820192020202120222023050100150200250

Publications

Publications (86)
Article
Background: Korea recently established 70 emergency medical service areas. However, there are many concerns that medical resources for stroke could not be evenly distributed through the country. We aimed to compare the treatment quality and outcomes of acute stroke among the emergency medical service areas.Methods: This study analyzed the data of 2...
Article
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Nowadays, machine learning (ML) is a revolutionary and cutting-edge technology widely used in the medical domain and health informatics in the diagnosis and prognosis of cardiovascular diseases especially. Therefore, we propose a ML-based soft-voting ensemble classifier (SVEC) for the predictive modeling of acute coronary syndrome (ACS) outcomes su...
Article
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Background: CHADS2, CHA2DS2-VASc, ATRIA, and Essen stroke risk scores are used to estimate thromboembolism risk. We aimed to investigate the association between unfavorable outcomes and stroke risk scores in patients who received endovascular thrombectomy (EVT). Methods: This study was performed using data from a nationwide, multicenter registry...
Article
Full-text available
Traditional regression-based approaches do not provide good results in diagnosis and prediction of occurrences of cardiovascular diseases (CVD). Therefore, the goal of this paper is to propose a deep learning–based prediction model of occurrence of major adverse cardiac events (MACE) during the 1, 6, 12 month follow-up after hospital admission in a...
Article
Heart failure is a clinical syndrome that occurs when the heart is too weak or stiff and cannot pump enough blood that our body needs. It is one of the most expensive diseases due to frequent hospitalizations and emergency room visits. Reducing unnecessary rehospitalizations is also an important and challenging task that has the potential of saving...
Article
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Background: The CHADS2, CHA2DS2-VASc, ATRIA, and Essen scores have been developed for predicting vascular outcomes in stroke patients. We investigated the association between these stroke risk scores and unsuccessful recanalization after endovascular thrombectomy (EVT). Methods: From the nationwide multicenter registry (Selection Criteria in End...
Article
Full-text available
Wafer maps provide engineers with important information about the root causes of failures during the semiconductor manufacturing process. Through the efficient recognition of the wafer map failure pattern type, the semiconductor manufacturing process and its product performance can be improved, as well as reducing the product cost. Therefore, this...
Chapter
Full-text available
Cardiovascular disease (CVD) is one of the major causes of death all over the world and the mortality rate is higher than other causes. Hence, we propose a novel deep neural network (DNN)-based prediction model for the major adverse cardiovascular event (MACE) occurrences in patients with non-ST-Elevation myocardial infarction (NSTEMI) to improve t...
Article
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The major adverse cardiovascular events (MACE) often occur with high morbidity and mortality globally. It is very important to predict the MACE occurrences accurately in patients with acute coronary syndrome (ACS). Therefore, this paper proposes a stacking ensemble model for the prediction of MACE occurrences in patients with ACS at early stage. Ou...
Article
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Objective Some researchers have studied about early prediction and diagnosis of major adverse cardiovascular events (MACE), but their accuracies were not high. Therefore, this paper proposes a soft voting ensemble classifier (SVE) using machine learning (ML) algorithms. Methods We used the Korea Acute Myocardial Infarction Registry dataset and sel...
Article
Background and Purpose Patients with acute stroke are often accompanied by comorbidities, such as active cancer. However, adequate treatment guidelines are not available for these patients. The purpose of this study was to evaluate the association between cancer and the outcomes of reperfusion therapy in patients with stroke. Methods We compared t...
Chapter
Since the Bluetooth Low Energy (BLE) with version 4.0 of the Bluetooth Core Specification was introduced by Bluetooth Special Interest Group in 2010, the BLE technology has been developing in a wide variety of applications such as the Internet of Things, sports and fitness equipment, home automation, health care, and mobile payment for bringing a c...
Article
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The eligibility of reperfusion therapy has been expanded to increase the number of patients. However, it remains unclear the reperfusion therapy will be beneficial in stroke patients with various comorbidities. We developed a reperfusion comorbidity index for predicting 6-month mortality in patients with acute stroke receiving reperfusion therapy....
Article
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Wafer maps contain information about various defect patterns on the wafer surface and automatic classification of these defects plays a vital role to find their root causes. Semiconductor engineers apply various methods for wafer defect classification such as manual visual inspection or machine learning-based algorithms by manually extracting usefu...
Article
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Introduction Clopidogrel is an antiplatelet agent that is widely used for the secondary prevention of cardiovascular and cerebrovascular events. The genotype of cytochrome P450 2C19 ( CYP2C19 ) differentially affects the liver’s metabolism of clopidogrel, which may influence the drug’s response and efficacy for cardiovascular event prevention. In c...
Chapter
In this paper, we developed mobile application framework which manages the hydrogen skin moisturizing device. We use react native framework for developing the mobile application. It allows us to manage and control the hydrogen skin device. Our hydrogen skin moisturizing device is based on PCB boards. We were connecting to PCB boards by Bluetooth co...
Chapter
Credit scoring is one of important issues in banking to control a loss due to debtors who fail to meet their credit payment. Hence, the banks aim to develop their credit scoring model for accurately detecting their bad borrowers. In this study, we propose a hybrid credit scoring model using deep neural networks and logistic regression to improve it...
Chapter
Full-text available
Cardiovascular disease is one of the extremely dangerous diseases in the world. Thus, the early detection of acute myocardial infarction is a critical model for patients and doctors. If the cardiovascular disease can make early detection, patients can prevent acute myocardial infarction. In this paper, we propose a machine learning ensemble approac...
Article
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Coronary heart disease (CHD) is one of the leading causes of death worldwide; if suffering from CHD and being in its end-stage, the most advanced treatments are required, such as heart surgery and heart transplant. Moreover, it is not easy to diagnose CHD at the earlier stage; hospitals diagnose it based on various types of medical tests. Thus, by...
Chapter
The World Health Organization (WHO) reported that coronary heart disease (CHD) is one of the top causes of global mortality, and it is also highly ranked in Korea. The wrong lifestyle such as alcohol, tobacco, and high fatty food is directly involved in the main risk factors for CHD. In the early stage, it is possible to prevent suffering from CHD...
Conference Paper
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In medical domain, the prediction of chronic disease is a very crucial topic. Hypertension is one of the most popular and representative chronic disease in the world. In this paper, we proposed a majority voting ensemble classifier for hypertension prediction to the KNHANES dataset from 2013 to 2015. We first combined the complex sampling-based fea...
Article
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Cardiovascular disease is the leading cause of death worldwide so, early prediction and diagnosis of cardiovascular disease is essential for patients affected by this fatal disease. The goal of this article is to propose a machine learning–based 1-year mortality prediction model after discharge in clinical patients with acute coronary syndrome. We...
Article
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The Internet of Things (IoT) is the global network of interrelated physical devices such as sensors, actuators, smart applications, objects, computing devices, mechanical machines, and people that are becoming an essential part of the internet. In an industrial environment, these devices are the source of data which provide abundant information in...
Article
A wafer map contains a graphical representation of the locations about defect pattern on the semiconductor wafer, which can provide useful information for quality engineers. Various defect patterns occur due to increasing wafer sizes and decreasing features sizes, which makes it very complex and unreliable process to identify them. In this paper, w...
Article
Background: Carotid intima-media thickness (IMT) can identify subjects at increased atherosclerotic cardiovascular disease (ASCVD) risk and can guide future treatment. However, U.S. Preventive Services Task Force has reaffirmed its previous recommendation against screening for asymptomatic carotid artery stenosis in the general adult population. Hy...
Article
Introduction: Discontinuation of antithrombotics can be associated with an increased risk of cardiovascular events and poor outcomes. Abrupt warfarin withdrawal may also induce a rebound or a paradoxical prothrombotic state, subsequently leading to an increased incident risk of stroke for up to 3 months. Hypothesis: Considering the potent anticoagu...
Article
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With the rapid increase of publishable research articles and manuscripts, the pressure to find reviewers often overwhelms journal editors. This paper incorporates the major entity level metrics found in the heterogeneous publication networks into a pattern mining process in order to recommend academic reviewers and potential research collaborators....
Chapter
Twitter—a social networking service is increasingly becoming an important source of news and information for various aspects of our life. However, harnessing reliable sources is both tedious and challenging. Algorithms for mining and detecting events from Twitter have been developed. In this paper, event detection techniques are investigated. In es...
Article
Wafer maps contain information about defects and clustered defects that form failure patterns. Failure patterns exhibit the information related to defect generation mechanisms. The accurate classification of failure patterns in wafer maps can provide crucial information for engineers to recognize the causes of the fabrication problems. In this pape...
Article
Full-text available
Background and purpose: To compare the efficacy and safety of antiplatelet agents for the secondary prevention of ischemic stroke based on cytochrome P450 2C19 (CYP2C19) polymorphisms. Methods: This study was a prospective, multicenter, randomized, parallel-group, open-label, blind genotype trial. First time non-cardiogenic ischemic stroke patie...
Data
Hazard ratios for the primary outcome in subgroups of participants with a poor genotype for clopidogrel metabolism. CI, confidence interval; LAA, large artery atherosclerosis; SUD, stroke of undetermined aetiology.
Data
Hazard ratios for the primary outcome in subgroups of participants who received clopidogrel treatment. CI, confidence interval; TOAST, Trial of ORG 10172 in the Acute Stroke Treatment; LAA, large artery atherosclerosis; SUD, stroke of undetermined aetiology; N/A, not available.
Article
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When a PDF417 barcode are recognized, there are major recognition processes such as segmentation, normalization, and decoding. Among them, the segmentation and normalization steps are very important because they have a strong influence on the rate of barcode recognition. There are also previous segmentation and normalization techniques of processin...
Article
Introduction: Atherosclerosis and osteoporosis are two major public health problems. These are both multifactorial and degenerative diseases that accompany aging. Co-morbidities are common, with a high prevalence of cardiovascular risk factors including hypertension, smoking, and sedentary lifestyle. Several studies have suggested a relationship be...
Article
Background and purpose: The Effect of Cilostazol in Acute Lacunar Infarction Based on Pulsatility Index of Transcranial Doppler (ECLIPse) study showed a significant decrease in transcranial Doppler pulsatility index (PI) with cilostazol treatment after 90 days of acute lacunar infarction. The aim of this analysis was to perform a subgroup analysis...
Article
Computer education in secondary schools aims to equip students with a creative problem solving ability (CPSA) and to enhance information literacy needed in the information age. One of the most popular instructional tools for computer education is to use textbooks. Therefore, it is necessary to develop a quantitative analysis model of CPSA in comput...
Article
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In this study, we investigated the stroke mechanism and the factors associated with ischemic stroke in patients with nonvalvular atrial fibrillation (NVAF) who were on optimal oral anticoagulation with warfarin. This was a multicenter case-control study. The cases were consecutive patients with NVAF who developed cerebral infarction or transient is...
Article
The two-dimensional QR code has advantages such as directional nature, enough data storage capacity, ability of error correction, and ability of data restoration. There are two major issues like speed and correctiveness of recognition in the two-dimensional QR code. Therefore, this paper proposes a morphology-based algorithm of detecting the intere...
Article
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An array DBMS has been expected widely from scientists because it is convenient to store and analyze the data of array type. In this paper, we describe how to handle satellite remote-sensing images in the array DBMS. However, previous works in their visualization have two problems as follows. First, the images are visualized as a state of distorted...
Article
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Silica dioxide (SiO2) has been used in various industrial products, including paints and coatings, plastics, synthetic rubbers, and adhesives. Several studies have investigated the genotoxic effects of SiO2; however, the results remain controversial due to variations in the evaluation methods applied in determining its physicochemical properties. T...
Article
Customers of different contract types have different shapes in daily load profiles in the manner of different characteristics. Therefore, maximally capture local and global shape variability is essential in load profiling which exhibits the customers' different behaviors and characteristics. Existing approaches are focusing on the global property b...
Article
Full-text available
Background: The Effect of Cilostazol in Acute Lacunar Infarction Based on Pulsatility Index of the Transcranial Doppler (ECLIPse) study showed a significant decrease in the transcranial Doppler (TCD) pulsatility index (PI) with cilostazol treatment at 90 days after acute lacunar infarction. The aim of the present study was to perform a subgroup an...
Patent
A method of manufacturing a stacked wafer level package includes: preparing a substrate; forming a conductive layer on the substrate; forming chip connection pads and internal connection pads on the conductive layer; forming solder balls connected to the internal connection pads; mounting a semiconductor chip on the conductive layer to be connected...
Article
Nanotechnology applied industry, particularly using zinc oxide (ZnO), has rapidly growing in diverse products including cosmetics, food, rubber, paints and plastics for the last decade. However, in spite of increasing in the population exposed to ZnO, the potential of genotoxicity induced by ZnO has not been clarified yet. To date, there are numero...
Article
Two-dimensional QR Code has improved greatly the limits on the capacity, size, direction of the one-dimensional bar code. And it has the capacity of compressing and storing the massive amount of data and is widely used in many applications. Recently, the two-dimensional QR Code has been spread rapidly because of introducing the smart phones and inc...
Article
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Many different approaches have been developed to improve the efficiency of animal cloning by somatic cell nuclear transfer (SCNT), one of which is to modify histone acetylation levels using histone deacetylase inhibitors (HDACi) such as trichostatin A (TSA). In the present study, we examined the effect of TSA on in vitro development of porcine embr...
Article
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Subclavian steal syndrome caused by an acute thrombus is very rare. We present a case of cerebellar infarction with proximal subclavian artery thrombosis. A 56-year-old woman was admitted for sudden vertigo. One day prior to admission, she received a shoulder massage comprised of chiropractic manipulation. On examination, her left hand was pale and...
Article
Conventional bar code has the appearance of line bars and spaces, called as one-dimensional bar code. In contrast, the information in two-dimensional bar code is represented by either a small, rectangular or square with the types of mosaic and Braille. The two-dimensional bar code is much more efficient than one-dimensional bar code because it can...
Article
In this work, we analyzed only the patients of the NSTEMI (non ST-segment elevation myocardial infarction) who arrived at the hospital within 12 h after symptoms started. Using NSTEMI follow-up data within, the characteristics of the clinical data, the risk factor, and the blood tested in the hospital visit were analyzed for MACE (major adverse car...
Article
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Background: This study is intended to evaluate the propensities of cilostazol to reduce the pulsatility index (PI) in patients with acute lacunar infarction using the serial transcranial Doppler (TCD) examinations. Methods: In a multicenter, randomized, double-blind, placebo-controlled trial, patients were randomly assigned to receive either pla...
Article
Full-text available
Metronidazole-induced encephalopathy is a very rare complication of the long standing use of metronidazole. The encephalopathy is bilateral and symmetric in nature. We report on the magnetic resonance imaging (MRI) and clinical course of metronidazole-induced encephalopathy in a 60-year-old female with a persistent anaerobic brain abscess after dra...
Article
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Swarm robotics usually involves a large number of robots, dealing with the emergence of intelligent collective behaviors based on local interactions, thus mimicking collective behaviors found in biological societies (e.g. ants, bees, bacteria, etc.). Therefore, both miniaturization and cost of robotic plat-form are key-factors in swarm robotics sce...
Article
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Due to its communication vulnerability resulting in a range of problems, e.g. eavesdropping, information exposure, traffic analysis and spoofing, RFID system becomes the target of attackers. Accordingly, many investigators have proposed various protocols to the extent of theorem proving or verification as the implementation is challenging. This pap...
Article
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Isolated left brachiocephalic artery with right aortic arch is extremely rare congenital anormaly. This malformation can cause subclavian steal phenomenon. We report the duplex sonographic and conventional angiographic findings of isolated left brachiocephalic artery in a 22-year-old female presented with dizziness.
Article
To artificially activate embryos in somatic cell nuclear transfer (SCNT), chemical treatment with ionomycin has been used to induce transient levels of Ca(2+) and initiate reprogramming of embryos. Ca(2+) oscillation occurs naturally several times after fertilization (several times with 15- to 30-min intervals). This indicates how essential additio...
Article
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There is no proven regimen to reduce the severity of stroke in patients with acute cerebral infarction presenting beyond the thrombolytic time window. Ozagrel sodium, a selective thromboxane A2 synthetase inhibitor, has been known to suppress the development of infarction. The antiplatelet effect is improved when aspirin is used together with a thr...
Article
Recent years, advances in day-to-day wearable sensors have led to the development of low powered physiological sensor platforms, which can be integrated in body area networks, a new enabling technology for real-time health monitoring. The bottleneck in health state awareness is the algorithm that has to interpret the sensor data. Nowadays Coronary...
Article
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Relaxin, a member of the insulin superfamily, has diverse functions in both reproductive and nonreproductive tissues. The aim of the present study was to evaluate the effects of recombinant relaxin on the in vitro maturation of porcine oocytes and their subsequent embryonic development following in vitro fertilization. Three concentrations of relax...
Article
In protein fold recognition, the main disadvantage of hidden Markov models (HMMs) is the employment of large-scale model architectures which require large data sets and high computational resources for training. Also, HMMs must consider sequential information about secondary structures of proteins, to improve prediction performance and reduce model...
Article
We investigated a method for assessing early improvement and predictive factors of early and late outcomes in patients receiving thrombolytic therapy. A total of 160 consecutive patients who received thrombolytic therapy were included in the study. Using National Institutes of Health Stroke Scale (NIHSS) scores, percent improvement [(baseline NIHSS...
Article
Insulin-transferrin-selenium (ITS) together has been used in different in vitro maturation system to support in vitro maturation of oocytes. The present study was designed to evaluate the effects of ITS in defined (0.1% PVA) and porcine follicular fluid (10% pFF) supplemented IVM media on the developmental competence of porcine oocytes. Three combi...
Article
The restricted supply of oocytes in the domestic dog limits the development of reproductive biotechnologies in this species. Inter-species somatic cell nuclear transfer could be an alternative for cloning animals whose oocytes are difficult to obtain. In this study, the possibility of cloning dog embryos using pig oocytes was investigated by evalua...
Conference Paper
Enzymes are the proteins that accelerate the rate of chemical reaction, and both their structures and dynamics may be important to their function of catalyzing biochemical reactions. For the function prediction and classification of enzymes, many methods based on sequence similarity to detect similar proteins have been developed. However, these met...
Article
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In an effort to improve the quality of in vitro produced porcine embryos, we investigated the effect of brain-derived neurotropic factor (BDNF), a neurotropin family member, on in vitro maturation (IVM) of porcine oocytes. The expression of BDNF and truncated isoforms of its receptor, tyrosine kinase B (TrkB), and p75 common neurotropin receptor wa...
Article
Somatic cell nuclear transfer (SCNT) can be widely applied to many fields in biomedical researches. In the present study, derivation and establishment of porcine embryonic stem (ES) cell lines from blastocysts produced by nuclear transfer of somatic cells retrieved from human decayaccelerating factor (hDAF) transgenic cloned fetus and newborn pigle...
Article
Atherosclerosis may cause severe stenosis of the arteries supplying the brain, which induces chronic cerebral hypoperfusion. Although an infarction often occurs in the chronically hypoperfused brain area, it has been uncertain whether the stroke severity is attenuated or increased when further decrease of blood flow occurs. To test the hypothesis t...
Article
This study was aimed at determining the frequency and coexistent patterns of high- and medium-risk cardiac sources of embolism (CSE) as defined by the Trial of ORG 10172 in the Acute Stroke Treatment (TOAST) classification system and at investigating how identified CSE contributed to this classification. We analyzed data from 2,482 patients with ac...
Article
The need for rapid evaluation and treatment of acute stroke patients has been well documented. A computerized physician order entry (CPOE) system can improve communication and provide immediate access to information, which may be useful for an effective team approach program targeted to reduce in-hospital time delays. To reduce the time from a pati...
Article
A new subtype classification of ischemic stroke was developed to reflect recent therapeutic strategies as well as evolving concepts of stroke definitions and mechanisms. In 200 consecutive patients with acute ischemic stroke, the inter-rater reliability and proportion of subtypes of the new classification system were assessed and compared with thos...
Article
Bio-cell chip is a chip that has hundreds of types of cells arrayed and immobilized on a small slide. To elucidate the role of deletion of the p16 gene in hematologic malignancies, the bio-cell chip technique was applied to fluorescent in situ hybridization (FISH) study. We made a bio-cell chip with bone marrow specimen from 109 patients with acute...