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 Kupsze Choi

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Average citations per article3.28
Citation Count118
Publication count36
Publication years2002-2017
Available for download4
Average downloads per article234.00
Downloads (cumulative)936
Downloads (12 Months)98
Downloads (6 Weeks)12
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36 results found Export Results: bibtexendnoteacmrefcsv

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1
October 2017 Applied Soft Computing: Volume 59 Issue C, October 2017
Publisher: Elsevier Science Publishers B. V.
Bibliometrics:
Citation Count: 0

The novel feature augmentation method, which utilizes the hidden features, the raw features, and zero vectors, is proposed.The novel hidden feature transformation model is proposed based on the maximum joint probability principle.With hinge loss function and least square loss function, two semi-supervised classification formulations are proposed. Semi-supervised learning methods are ...
Keywords: Manifold assumption, Semi-supervised learning, Hidden features, Joint probability distribution, Cluster assumption

2
April 2017 Procedia Computer Science: Volume 107 Issue C, April 2017
Publisher: Elsevier Science Publishers B. V.
Bibliometrics:
Citation Count: 0

Brain-computer interfaces (BCIs) based on virtual reality (VR) mostly integrate visual and/or auditory feedback. Haptic feedbackwhich has the potential on improving the feasibility and operability of VR-based BCI systems is rarely explored in previous studies. In this article, we present a novel framework of BCI system based on both visual ...
Keywords: event-related spectral perturbation (ERSP), Haptic feedback, brain-computer interface (BCI), virtual reality (VR), Electroencephalogram (EEG)

3
December 2016 Multimedia Tools and Applications: Volume 75 Issue 23, December 2016
Publisher: Kluwer Academic Publishers
Bibliometrics:
Citation Count: 0

Instability in haptic systems due to behaviors of human operators or unknown virtual environments can present safety issues. For example, a haptic stylus may be ejected at a high speed which may cause injury if manipulated inappropriately. Three safety control approaches are thus proposed in the paper to tackle the ...
Keywords: Passivity, Safety control, Stability, Grasp force, Haptic rendering, Impedance

4
August 2016 Information Sciences: an International Journal: Volume 357 Issue C, August 2016
Publisher: Elsevier Science Inc.
Bibliometrics:
Citation Count: 3

While the Takagi-Sugeno-Kang (TSK) fuzzy system has been extensively applied to regression, the aim of this paper is to unveil its potential for classification, of multiple tasks in particular. First, a novel TSK fuzzy classifier (TSK-FC) is presented for pattern classification by integrating the large margin criterion into the objective ...
Keywords: Labeling-risk, Large margin, TSK fuzzy system, Multi-task learning, Classification, Labeling-risk-aware mechanism

5
August 2016 Computer Methods and Programs in Biomedicine: Volume 132 Issue C, August 2016
Publisher: Elsevier North-Holland, Inc.
Bibliometrics:
Citation Count: 0

We aim at exploring the effect of using object-oriented movement in a virtual environment as visual guidance on MI-based BCI.We propose an algorithm to extract subject-specific optimal frequency and time bands of ERD patterns for left/right hand MI.The results show that the classification accuracy of MI tasks is improved using ...
Keywords: Visual guidance, Hand motor imagery, Subject-specific frequency and time bands, Brain-computer interface, Event-related desynchronization, Virtual reality

6 published by ACM
July 2016 ACM Transactions on Intelligent Systems and Technology (TIST): Volume 8 Issue 1, October 2016
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 9,   Downloads (12 Months): 81,   Downloads (Overall): 144

Full text available: PDFPDF
The knowledge-leverage-based Takagi--Sugeno--Kang fuzzy system (KL-TSK-FS) modeling method has shown promising performance for fuzzy modeling tasks where transfer learning is required. However, the knowledge-leverage mechanism of the KL-TSK-FS can be further improved. This is because available training data in the target domain are not utilized for the learning of antecedents ...
Keywords: Enhanced KL-TSK-FS, missing data, transfer learning, knowledge leverage, fuzzy modeling, fuzzy systems

7
June 2016 Information Sciences: an International Journal: Volume 348 Issue C, June 2016
Publisher: Elsevier Science Inc.
Bibliometrics:
Citation Count: 3

Subspace clustering (SC) is a promising technology involving clusters that are identified based on their association with subspaces in high-dimensional spaces. SC can be classified into hard subspace clustering (HSC) and soft subspace clustering (SSC). While HSC algorithms have been studied extensively and are well accepted by the scientific community, ...
Keywords: Entropy weighting, Mixture model, Soft subspace clustering, Fuzzy C-means/k-means model, Fuzzy weighting

8
June 2016 Journal of Real-Time Image Processing: Volume 12 Issue 1, June 2016
Publisher: Springer-Verlag New York, Inc.
Bibliometrics:
Citation Count: 0

Gabor wavelet transform is one of the most effective texture feature extraction techniques and has resulted in many successful practical applications. However, real-time applications cannot benefit from this technique because of the high computational cost arising from the large number of small-sized convolutions which require over 10 min to process ...
Keywords: Filter approximation, GPU-based acceleration, Gabor wavelet transform, Separable filter, Texture segmentation

9
April 2016 Pattern Recognition: Volume 52 Issue C, April 2016
Publisher: Elsevier Science Inc.
Bibliometrics:
Citation Count: 1

Soft subspace clustering algorithms have been successfully used for high dimensional data in recent years. However, the existing algorithms often utilize only one distance function to evaluate the distance between data items on each feature, which cannot deal with datasets with complex inner structures. In this paper, a composite kernel ...
Keywords: Fuzzy clustering, Soft subspace clustering, Composite kernel space, Distance metric learning

10
August 2015 Computers in Biology and Medicine: Volume 63 Issue C, August 2015
Publisher: Pergamon Press, Inc.
Bibliometrics:
Citation Count: 2

Bladder cancer is a common cancer in genitourinary malignancy. For muscle invasive bladder cancer, surgical removal of the bladder, i.e. radical cystectomy, is in general the definitive treatment which, unfortunately, carries significant morbidities and mortalities. Accurate prediction of the mortality of radical cystectomy is therefore needed. Statistical methods have conventionally ...
Keywords: Mortality, Prognosis, Radical cystectomy, Bladder cancer, Prediction, Machine learning

11
March 2015 Multimedia Tools and Applications: Volume 74 Issue 6, March 2015
Publisher: Kluwer Academic Publishers
Bibliometrics:
Citation Count: 0

High refresh rate required for haptic rendering has been an issue in immersive virtual-reality based simulation. It prohibits the use of physically accurate yet computationally intensive force models. In the paper, we propose to adopt analytical force model to render feedback forces during interactive simulation of soft-object deformation, which allows ...
Keywords: Deformation simulation, Soft object, Analytical force model, Haptic rendering

12
March 2015 Neural Networks: Volume 63 Issue C, March 2015
Publisher: Elsevier Science Ltd.
Bibliometrics:
Citation Count: 0

Nonnegative Matrix Factorization (NMF) has been extensively applied in many areas, including computer vision, pattern recognition, text mining, and signal processing. However, nonnegative entries are usually required for the data matrix in NMF, which limits its application. Besides, while the basis and encoding vectors obtained by NMF can represent the ...
Keywords: Manifold regularization, Clustering, Convex nonnegative matrix factorization, Nonnegative matrix factorization

13
February 2015 Computers in Biology and Medicine: Volume 57 Issue C, February 2015
Publisher: Pergamon Press, Inc.
Bibliometrics:
Citation Count: 0

Nasogastric tube (NGT) placement is a common clinical procedure where a plastic tube is inserted into the stomach through the nostril for feeding or drainage. However, the placement is a blind process in which the tube may be mistakenly inserted into other locations, leading to unexpected complications or fatal incidents. ...
Keywords: Nursing skills training, Haptic rendering, Virtual reality, Clinical simulation, Nasogastric tube, Intubation

14
August 2013 ICSH'13: Proceedings of the 2013 international conference on Smart Health
Publisher: Springer-Verlag
Bibliometrics:
Citation Count: 0

Ageing is a global challenge. As health conditions gradually deteriorate, elders are prone to suffering from multiple chronic diseases. The impact of ageing on the heath system is therefore unprecedented. Primary and preventive care is important to ensure older adults to receive immediate healthcare so that their health problems can ...
Keywords: mobile clinic, telehealth, elderly, healthcare information system, ageing, preventive care, primary care

15
April 2013 Computer Methods and Programs in Biomedicine: Volume 110 Issue 1, April, 2013
Publisher: Elsevier North-Holland, Inc.
Bibliometrics:
Citation Count: 8

Clinical data are dynamic in nature, often arranged hierarchically and stored as free text and numbers. Effective management of clinical data and the transformation of the data into structured format for data analysis are therefore challenging issues in electronic health records development. Despite the popularity of relational databases, the scalability ...
Keywords: Relational database, Clinical data, NoSQL, XML, Information storage and retrieval

16
February 2013 Presence: Teleoperators and Virtual Environments: Volume 22 Issue 1, Winter 2013
Publisher: MIT Press
Bibliometrics:
Citation Count: 0

It has been widely demonstrated that haptic interaction can enrich the sense of copresence of distributed users and improve their performance in collaborative virtual environments CVEs. However, the influence of network traffic on haptic collaboration, particularly packet loss in haptic data streams, is still largely unknown. In order to investigate ...

17
February 2013 Presence: Teleoperators and Virtual Environments: Volume 22 Issue 1, Winter 2013
Publisher: MIT Press
Bibliometrics:
Citation Count: 0

It has been widely demonstrated that haptic interaction can enrich the sense of copresence of distributed users and improve their performance in collaborative virtual environments CVEs. However, the influence of network traffic on haptic collaboration, particularly packet loss in haptic data streams, is still largely unknown. In order to investigate ...

18
February 2013 Presence: Teleoperators and Virtual Environments: Volume 22 Issue 1, Winter 2013
Publisher: MIT Press
Bibliometrics:
Citation Count: 0

It has been widely demonstrated that haptic interaction can enrich the sense of copresence of distributed users and improve their performance in collaborative virtual environments CVEs. However, the influence of network traffic on haptic collaboration, particularly packet loss in haptic data streams, is still largely unknown. In order to investigate ...

19
December 2012 Neural Networks: Volume 36, December, 2012
Publisher: Elsevier Science Ltd.
Bibliometrics:
Citation Count: 1

Research on large margin classifiers from the ''local'' and ''global'' view has become an active topic in machine learning and pattern recognition. Inspired from the typical local and global learning machine Maxi-Min Margin Machine (M^4) and the idea of the Locality Preserving Projections (LPP), we propose a novel large margin ...
Keywords: Large margin classification, Locality preserving projections classification, Maxi-Min Margin Machine

20
July 2012 IEEE Computer Graphics and Applications: Volume 32 Issue 4, July 2012
Publisher: IEEE Computer Society Press
Bibliometrics:
Citation Count: 4

Diffusion curves are a new kind of primitive in vector graphics, capable of representing smooth color transitions among boundaries. Their rendering requires solving Poisson's equation; much previous research relied on traditional solvers, which commonly require GPU acceleration to achieve real-time rasterization. This obviously restricts deployment on the Internet—for example, as ...
Keywords: Image color analysis,Rendering (computer graphics),Interpolation,DIffusion processes,Graphics processing unit,Curves,Harmonic analysis,harmonic maps,Image color analysis,Rendering (computer graphics),Interpolation,DIffusion processes,Graphics processing unit,Curves,Harmonic analysis,nonphotorealistic rendering,Image color analysis,Rendering (computer graphics),Interpolation,Color,Graphics processing unit,Nickel,computer graphics,diffusion curves,vector graphics rendering,mean value coordinates



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