Search results for: Turgay Celik

Items from 1 to 20 out of 335 results

article

Micro‐IDE: A tool platform for generating efficient deployment alternatives based on microservices

Işıl Karabey Aksakallı, Turgay Çelik, Ahmet Burak Can, Bedir Tekinerdoğan

Software: Practice and Experience > 52 > 7 > 1756 - 1782

Microservice architecture (MSA) is a paradigm to design and develop scalable distributed applications using loosely coupled, highly cohesive components that can be deployed independently. The applications that realize the MSA may contain thousands of services that together form the overall system. Microservices interact with each other by producing and consuming data. Deploying frequently communicating...

article

Design, synthesis, and molecular docking of novel 3,5‐disubstituted‐1,3,4‐oxadiazole derivatives as iNOS inhibitors

Meric Koksal, Ayca Dedeoglu‐Erdogan, Marwa Bader, Enise E. Gurdal, more

Archiv der Pharmazie > 354 > 8 > n/a - n/a

To obtain new anti‐inflammatory agents, recent studies have aimed to replace the carboxylate functionality of nonsteroidal anti‐inflammatory drugs with less acidic heterocyclic bioisosteres like 1,3,4‐oxadiazole to protect the gastric mucosa from free carboxylate moieties. In view of these observations, we designed and synthesized a series of 3,5‐disubstituted‐1,3,4‐oxadiazole derivatives as inhibitors...

article

A new cryptography algorithm for quantum images

Mosayeb Naseri, Mona Abdolmaleky, Amel Laref, Fariborz Parandin, more

Optik - International Journal for Light and Electron Optics > 2018 > 171 > C > 947-959

In this paper, a new bi-step quantum image cryptography algorithm is presented. The proposed scheme is consisted of four different coding algorithms. According to the pixels of original image and corresponding quantum bits of the generated random binary key, the employed coding algorithm is selected. The security of the proposed scheme is increased through randomization of binary image key generation...

article

Sparse representation-based hyperspectral image classification

Hairong Wang, Turgay Celik

Signal, Image and Video Processing > 2018 > 12 > 5 > 1009-1017

This paper presents an approach for hyperspectral image classification using contextual sparse coefficients based on sparse representations. The main idea is that the sparse coefficients obtained through sparse representation-based modelling of the hyperspectral images contain discriminative characters which can be utilized for hyperspectral image processing tasks, such as classifications. Moreover,...

article

Computer vision for wildfire research: An evolving image dataset for processing and analysis

Tom Toulouse, Lucile Rossi, Antoine Campana, Turgay Celik, more

Fire Safety Journal > 2017 > 92 > C > 188-194

The last decade has witnessed the use of computer vision for wildfire detection and measurement. The first and most important step for computer vision analysis is the fire pixel detection because it determines the accuracy of the following processing. The evaluation and the comparison of the wildfire detection algorithms of the literature and the development of new ones needs open datasets with a...

article

Change Detection in Polarimetric SAR Images Using a Geodesic Distance Between Scattering Mechanisms

Debanshu Ratha, Shaunak De, Turgay Celik, Avik Bhattacharya

IEEE Geoscience and Remote Sensing Letters > 2017 > 14 > 7 > 1066 - 1070

A novel technique to generate the difference image (DI) in change detection analysis for polarimetric SAR (PolSAR) data is proposed. Unlike the standard methods, viz., band difference or intensity/amplitude ratioing, the proposed technique utilizes the full vector nature of multitemporal PolSAR data. In this data, a pixel is characterized by a

$4\times 4$

Kennaugh matrix. The geodesic distance (GD)...

article

Sparse Representation-Based Hyperspectral Data Processing: Lossy Compression

Hairong Wang, Turgay Celik

IEEE Journal of Selected Topics in Applied Earth Observations and Remote... > 2017 > 10 > 5-1 > 2036 - 2045

This paper presents a method for lossy hyperspecral data compression based on sparse representation. The idea is to learn a dictionary that induces sparsity in the coefficient vectors that represent new input signals. The energy compaction feature of such sparse coefficient vectors is then evaluated in a lossy hyperspectral data compression framework. Experimental results on a number of hyperspectral...

chapter

Semi-supervised probabilistics approach for normalising informal short text messages

Abiodun Modupe, Turgay Celik, Vukosi Marivate, Melvin Diale

2017 Conference on Information Communication Technology and Society (ICTAS) > 1 - 8

2017 Conference on Information Communication Technology and Society (ICTAS)

The growing use of informal social text messages on Twitter is one of the known sources of big data. These type of messages are noisy and frequently rife with acronyms, slangs, grammatical errors and non-standard words causing grief for natural language processing (NLP) techniques. In this study, our contribution is to target non-standard words in the short text and propose a method to which the given...

chapter

Feature selection and support vector machine hyper-parameter optimisation for spam detection

Melvin Diale, Christiaan Van Der Walt, Turgay Celik, Abiodun Modupe

2016 Pattern Recognition Association of South Africa and Robotics and Mechatronics International Conference (PRASA-RobMech) > 1 - 7

2016 PRASA-RobMech International Conference

Spam emails are a major threat that negatively impacts email users. Spam wastes time, financial resources of businesses, consumes network bandwidth and slows down email servers. In addition, provides a medium for distributing malicious code and there is currently not one solution to this problem. The Bag of Words (BoW) word content feature extraction method is well established for classifying spam...

article

Vitamin D Levels in Patients with Atrial Fibrillation

Sevket Balta, Cengiz Ozturk, Sait Demirkol, Mustafa Demir, more

Annals of Noninvasive Electrocardiology > 21 > 6 > 622 - 623

article

Spatial Mutual Information and PageRank-Based Contrast Enhancement and Quality-Aware Relative Contrast Measure

Turgay Celik

IEEE Transactions on Image Processing > 2016 > 25 > 10 > 4719 - 4728

This paper proposes a novel algorithm for global contrast enhancement using a new definition of spatial mutual information (SMI) of gray levels of an input image and PageRank algorithm. The gray levels are used to represent nodes in PageRank algorithm, and the weights between the nodes are computed according to their dependence and spatial spread over the image, which is quantified by using SMI. The...

article

The relation between inflammation and coronary artery ectasia

Sevket Balta, Mustafa Demir, Cengiz Ozturk, Turgay Celik

Revista Portuguesa de Cardiologia (English Edition) > 2016 > 35 > 10 > 553-554

article

Coronary microvascular dysfunction in patients with cardiac syndrome X: Ongoing debate

Turgay Celik, Cengiz Ozturk, Sevket Balta, Sait Demirkol, more

International Journal of Cardiology > 2016 > 218 > C > 233-234

article

Ischemia modified albumin in cardiovascular disease

Sevket Balta, Recai Alemdar, Sıddık Erdogan, Mustafa Demir, more

The American Journal of Emergency Medicine > 2016 > 34 > 8 > 1699

article

The relation between monocyte to HDL ratio and no-reflow phenomenon in the patients with acute ST-segment elevation myocardial infarction

Sevket Balta, Turgay Celik, Cengiz Ozturk, M.Gungor. Kaya, more

The American Journal of Emergency Medicine > 2016 > 34 > 8 > 1542-1547

No-reflow phenomenon is a prognostic value in ST-segment elevation myocardial infarction (STEMI). Monocyte to high density lipoprotein ratio (MHR) has recently emerged as a marker of inflammation and oxidative stress in the cardiovascular disease.In this study, we aimed to investigate the relation between MHR and no-reflow phenomenon in patients with STEMI undergoing primary percutaneous coronary...

article

Acute anterior myocardial infarction after heavy exercise in a young sportsman: Importance of intravascular ultrasonography on differential diagnosis

Cengiz Ozturk, Turgay Celik, Atila Iyisoy, Hamidullah Haqmal, more

International Journal of Cardiology > 2016 > 215 > C > 169-172

article

The effectiveness of bilirubin for the treatment of ischemia–reperfusion injury in an experimental model: Can it be extrapolated to humans?

Turgay Celık, Sevket Balta, M.Gungor Kaya, Cengiz Ozturk, more

International Journal of Cardiology > 2016 > 215 > C > 173-174

chapter

Ship detection using VIIRS sensor specific data

Benjamin Lebona, Waldo Kleynhans, Turgay Celik, Lizwe Mdakane

2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS) > 1245 - 1247

IGARSS 2016 - 2016 IEEE International Geoscience and Remote Sensing Symposium

The maritime domain can be a very resource intensive region to actively monitor on a continuous basis. Remote sensing has been observed to be a valuable tool in this application, and the most effective strategy has been to supplement outputs from different Earth Observation tools in order to better classify target objects. The Visible Infrared Imaging Radiometer Suit is able to generate daily images...

chapter

Sparse representation based lossy hyperspectral data compression

Hairong Wang, Turgay Celik

2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS) > 2761 - 2764

IGARSS 2016 - 2016 IEEE International Geoscience and Remote Sensing Symposium

Sparse representation is capable of modeling signals as linear combination of a few atoms from a pre-trained dictionary. It allows learning an adaptive dictionary that leads to highly sparse nature in the representation of signals. In this paper, sparse representation is deployed in a lossy hyperspectral data compression framework. Dictionaries that exploit spectral correlation, as well as both spectral...

article

The best treatment option in the management of patients with chronic total occlusion of a single coronary artery: Debate continues

Turgay Celik, Cengiz Ozturk, Sevket Balta, Atila Iyisoy

International Journal of Cardiology > 2016 > 214 > C > 79-80

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Keywords

ACUTE MYOCARDIAL INFARCTION (13)
CHANGE DETECTION (11)
REMOTE SENSING (10)
ACUTE CORONARY SYNDROMES (8)
ATRIAL FIBRILLATION (7)
CORONARY ARTERY DISEASE (7)
DIFFERENCE IMAGE (7)
DUAL-TREE COMPLEX WAVELET TRANSFORM (6)
IN-STENT RESTENOSIS (6)
INFLAMMATION (6)
ATHEROSCLEROSIS (5)
CONTRAST ENHANCEMENT (5)
DISCRETE WAVELET TRANSFORM (5)
FEATURE EXTRACTION (5)
HEART FAILURE (5)
MULTISCALE ANALYSIS (5)
PRINCIPAL COMPONENT ANALYSIS (5)
PROGNOSIS (5)
RAT(S) (5)
SYNTHETIC APERTURE RADAR (5)
TRANSFORMS (5)
CARDIAC SYNDROME X (4)
CHRONIC HEART FAILURE (4)
DIABETES MELLITUS (4)
HISTOGRAMS (4)
IMAGE PROCESSING (4)
LOG-RATIO IMAGE (4)
PERCUTANEOUS CORONARY INTERVENTION (4)
PIXEL (4)
PRIMARY PCI (4)
SATELLITES (4)
UNSUPERVISED CHANGE DETECTION (4)
BREAST CANCER (3)
BRIGHTNESS (3)
C-REACTIVE PROTEIN (3)
CARDIOVASCULAR MORTALITY (3)
CHANGE DETECTION ALGORITHMS (3)
CHRONIC OBSTRUCTIVE PULMONARY DISEASE (3)
CONGENITAL ANOMALY (3)
CORONARY ARTERY FISTULA (3)
CORONARY STENTING (3)
DRUG-ELUTING STENTS (3)
DUAL LEFT ANTERIOR DESCENDING CORONARY ARTERY (3)
ESCITALOPRAM (3)
ETHANOL (3)
GEOPHYSICAL IMAGE PROCESSING (3)
IMAGE ANALYSIS (3)
IMAGE SEGMENTATION (3)
K-MEANS CLUSTERING (3)
LEFT VENTRICLE (3)
METABOLIC SYNDROME (3)
MORTALITY (3)
MULTITEMPORAL SATELLITE IMAGES (3)
NEBIVOLOL (3)
ONLINE DICTIONARY LEARNING (3)
OPTICAL IMAGE (3)
PERCUTANEOUS MITRAL ANNULOPLASTY (3)
RADIATION THERAPY (3)
SLOW CORONARY FLOW (3)
SPARSE REPRESENTATION (3)
TEXTURE CLASSIFICATION (3)
ADIPONECTIN (2)
ANGIOTENSIN RECEPTOR BLOCKERS (2)
ARTERIAL HYPERTENSION (2)
ATRIOVENTRICULAR NODAL REENTRANT TACHYCARDIA (2)
BACKGROUND SUBTRACTION (2)
BARE METAL STENTS (2)
BAYESIAN INFERENCING (2)
CARDIAC CACHEXIA (2)
CARDIOPULMONARY RESUSCITATION (2)
CARVEDILOL (2)
CHRONIC KIDNEY DISEASE (2)
COLOUR CONSTANCY (2)
CORONARY ARTERY ANOMALY (2)
CORONARY ARTERY BYPASS SURGERY (2)
CORONARY HEART DISEASE (2)
CORONARY MICROVASCULAR DYSFUNCTION (2)
CRP (2)
DIAGNOSIS (2)
DICTIONARIES (2)
DYNAMIC RANGE (2)
ECHOCARDIOGRAPHY (2)
EDGE DETECTION (2)
ENDOCAN (2)
ENDOTHELIAL DYSFUNCTION (2)
ENDOTHELIUM (2)
ENTROPY (2)
ENVIRONMENTAL MONITORING (2)
ETHANOL WITHDRAWAL (2)
ETHANOL WITHDRAWAL SYNDROME (2)
FIRE DETECTION (2)
FIRES (2)
G-CSF (2)
GAUSSIAN MIXTURE MODEL (2)
GENETIC ALGORITHM (2)
GEOPHYSICAL TECHNIQUES (2)
GOLDEN RATIO (2)
HEURISTIC ALGORITHMS (2)
HISTOGRAM EQUALIZATION (2)
HYPERSPECTRAL IMAGING (2)
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Elsevier (261)
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Springer (26)
Wiley (17)
PSJD (4)
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INFONA - science communication portal

Search results for: Turgay Celik

Micro‐IDE: A tool platform for generating efficient deployment alternatives based on microservices

Design, synthesis, and molecular docking of novel 3,5‐disubstituted‐1,3,4‐oxadiazole derivatives as iNOS inhibitors

A new cryptography algorithm for quantum images

Sparse representation-based hyperspectral image classification

Computer vision for wildfire research: An evolving image dataset for processing and analysis

Change Detection in Polarimetric SAR Images Using a Geodesic Distance Between Scattering Mechanisms

Sparse Representation-Based Hyperspectral Data Processing: Lossy Compression

Semi-supervised probabilistics approach for normalising informal short text messages

Feature selection and support vector machine hyper-parameter optimisation for spam detection

Vitamin D Levels in Patients with Atrial Fibrillation

Spatial Mutual Information and PageRank-Based Contrast Enhancement and Quality-Aware Relative Contrast Measure

The relation between inflammation and coronary artery ectasia

Coronary microvascular dysfunction in patients with cardiac syndrome X: Ongoing debate

Ischemia modified albumin in cardiovascular disease

The relation between monocyte to HDL ratio and no-reflow phenomenon in the patients with acute ST-segment elevation myocardial infarction

Acute anterior myocardial infarction after heavy exercise in a young sportsman: Importance of intravascular ultrasonography on differential diagnosis

The effectiveness of bilirubin for the treatment of ischemia–reperfusion injury in an experimental model: Can it be extrapolated to humans?

Ship detection using VIIRS sensor specific data

Sparse representation based lossy hyperspectral data compression

The best treatment option in the management of patients with chronic total occlusion of a single coronary artery: Debate continues

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